Flag of the European Union EU Clinical Trials Register Help

Clinical trials

The European Union Clinical Trials Register   allows you to search for protocol and results information on:
  • interventional clinical trials that were approved in the European Union (EU)/European Economic Area (EEA) under the Clinical Trials Directive 2001/20/EC
  • clinical trials conducted outside the EU/EEA that are linked to European paediatric-medicine development

  • EU/EEA interventional clinical trials approved under or transitioned to the Clinical Trial Regulation 536/2014 are publicly accessible through the
    Clinical Trials Information System (CTIS).


    The EU Clinical Trials Register currently displays   44334   clinical trials with a EudraCT protocol, of which   7366   are clinical trials conducted with subjects less than 18 years old.   The register also displays information on   18700   older paediatric trials (in scope of Article 45 of the Paediatric Regulation (EC) No 1901/2006).

    Phase 1 trials conducted solely on adults and that are not part of an agreed paediatric investigation plan (PIP) are not publicly available (see Frequently Asked Questions ).  
     
    Examples: Cancer AND drug name. Pneumonia AND sponsor name.
    How to search [pdf]
    Search Tips: Under advanced search you can use filters for Country, Age Group, Gender, Trial Phase, Trial Status, Date Range, Rare Diseases and Orphan Designation. For these items you should use the filters and not add them to your search terms in the text field.
    Advanced Search: Search tools
     

    < Back to search results

    Download PDF

    Clinical Trial Results:
    A Phase 2/3, Randomized, Observer-Blind, Placebo-Controlled Study to Evaluate the Safety, Reactogenicity, and Effectiveness of mRNA-1273 SARS-CoV-2 Vaccine in Healthy Adolescents 12 to <18 Years of Age

    Summary
    EudraCT number
    2023-000382-14
    Trial protocol
    Outside EU/EEA  
    Global end of trial date
    12 Jul 2024

    Results information
    Results version number
    v1(current)
    This version publication date
    26 Jan 2025
    First version publication date
    26 Jan 2025
    Other versions

    Trial information

    Close Top of page
    Trial identification
    Sponsor protocol code
    mRNA-1273-P203
    Additional study identifiers
    ISRCTN number
    -
    US NCT number
    NCT04649151
    WHO universal trial number (UTN)
    -
    Sponsors
    Sponsor organisation name
    ModernaTX, Inc.
    Sponsor organisation address
    325 Binney Street, Cambridge, MA, United States, 02142
    Public contact
    Moderna Clinical Trials Support Center, ModernaTX, Inc., +1 877-777-7187, clinicaltrials@modernatx.com
    Scientific contact
    Moderna Clinical Trials Support Center, ModernaTX, Inc., +1 877-777-7187, clinicaltrials@modernatx.com
    Paediatric regulatory details
    Is trial part of an agreed paediatric investigation plan (PIP)
    Yes
    EMA paediatric investigation plan number(s)
    EMEA-002893-PIP01-20
    Does article 45 of REGULATION (EC) No 1901/2006 apply to this trial?
    No
    Does article 46 of REGULATION (EC) No 1901/2006 apply to this trial?
    Yes
    Results analysis stage
    Analysis stage
    Final
    Date of interim/final analysis
    23 Jul 2024
    Is this the analysis of the primary completion data?
    Yes
    Primary completion date
    14 Jun 2024
    Global end of trial reached?
    Yes
    Global end of trial date
    12 Jul 2024
    Was the trial ended prematurely?
    No
    General information about the trial
    Main objective of the trial
    The study was designed to primarily evaluate the safety, reactogenicity, and effectiveness of mRNA-1273 vaccine administered as primary series and a booster dose (BD) to an adolescent population. The study also evaluated the safety and immunogenicity of an mRNA-1273.222 vaccine against the SARS-CoV- 2 omicron variant.
    Protection of trial subjects
    This study was conducted in accordance with the protocol and consensus ethical principles derived from international guidelines including the Declaration of Helsinki, and Council for International Organizations of Medical Sciences (CIOMS) International Ethical Guidelines, applicable International Council for Harmonisation (ICH) Good Clinical Practice (GCP) guidelines, and other applicable laws and regulatory requirements.
    Background therapy
    -
    Evidence for comparator
    -
    Actual start date of recruitment
    09 Dec 2020
    Long term follow-up planned
    Yes
    Long term follow-up rationale
    Safety
    Long term follow-up duration
    12 Months
    Independent data monitoring committee (IDMC) involvement?
    Yes
    Population of trial subjects
    Number of subjects enrolled per country
    Country: Number of subjects enrolled
    United States: 3994
    Country: Number of subjects enrolled
    Dominican Republic: 334
    Worldwide total number of subjects
    4328
    EEA total number of subjects
    0
    Number of subjects enrolled per age group
    In utero
    0
    Preterm newborn - gestational age < 37 wk
    0
    Newborns (0-27 days)
    0
    Infants and toddlers (28 days-23 months)
    0
    Children (2-11 years)
    0
    Adolescents (12-17 years)
    4328
    Adults (18-64 years)
    0
    From 65 to 84 years
    0
    85 years and over
    0

    Subject disposition

    Close Top of page
    Recruitment
    Recruitment details
    -

    Pre-assignment
    Screening details
    The study included Part 1A as the Blinded Phase with participants remaining blinded until the initiation of Part 1B (open-label cross-over phase), and Parts 1C-1, 1C-2, 2, and 3 as open-label. A comparison to the mRNA-1273-P301 (P301) (NCT04470427) study's efficacy data was performed on a subgroup of P301 study participants aged 18-25 (N=296).

    Period 1
    Period 1 title
    Parts 1, 2, and 3
    Is this the baseline period?
    Yes
    Allocation method
    Randomised - controlled
    Blinding used
    Double blind
    Roles blinded
    Subject, Investigator, Carer, Monitor
    Blinding implementation details
    Part 1A was observer-blind. Participants remained blinded until the initiation of Part 1B (open-label cross-over phase). Parts 1C-1, 1C-2, 2, and 3 were open-label.

    Arms
    Are arms mutually exclusive
    Yes

    Arm title
    Part 1A: mRNA-1273 100 μg
    Arm description
    Participants received 2 doses of 100 micrograms (μg) mRNA-1273 by intramuscular (IM) injection (Day 1 and Day 29).
    Arm type
    Experimental

    Investigational medicinal product name
    mRNA-1273
    Investigational medicinal product code
    Other name
    Pharmaceutical forms
    Sterile concentrate
    Routes of administration
    Intramuscular use
    Dosage and administration details
    mRNA-1273 was administered per dose and schedule specified in the arm description.

    Arm title
    Part 1A: Placebo
    Arm description
    Participants received 2 doses of placebo matched to mRNA-1273 100 μg by IM injection (Day 1 and Day 29).
    Arm type
    Placebo

    Investigational medicinal product name
    Placebo
    Investigational medicinal product code
    Other name
    Pharmaceutical forms
    Sterile concentrate
    Routes of administration
    Intramuscular use
    Dosage and administration details
    Placebo matched to mRNA-1273 was administered per schedule specified in the arm description.

    Arm title
    Part 1C-2: mRNA-1273 50 μg BD
    Arm description
    Participants who completed primary COVID-19 vaccination series with a non-Moderna vaccine under emergency use authorization (EUA), received a single BD of 50 μg mRNA-1273 IM injection on BD Day 1.
    Arm type
    Experimental

    Investigational medicinal product name
    mRNA-1273
    Investigational medicinal product code
    Other name
    Pharmaceutical forms
    Sterile concentrate
    Routes of administration
    Intramuscular use
    Dosage and administration details
    mRNA-1273 was administered per dose and schedule specified in the arm description.

    Arm title
    Part 2: mRNA-1273 50 μg
    Arm description
    Participants received 2 doses of 50 μg mRNA-1273 by IM injection (Day 1 and Day 29).
    Arm type
    Experimental

    Investigational medicinal product name
    mRNA-1273
    Investigational medicinal product code
    Other name
    Pharmaceutical forms
    Sterile concentrate
    Routes of administration
    Intramuscular use
    Dosage and administration details
    mRNA-1273 was administered per dose and schedule specified in the arm description.

    Arm title
    Part 3: mRNA-1273.222 50 µg
    Arm description
    Participants received 1 dose of mRNA-1273.222 50 µg by IM injection (Day 1). Some participants may have received a second dose of mRNA-1273.222 50 µg at approximately 6 months after the first dose (Day 181).
    Arm type
    Experimental

    Investigational medicinal product name
    mRNA-1273.222
    Investigational medicinal product code
    Other name
    Pharmaceutical forms
    Sterile concentrate
    Routes of administration
    Intramuscular use
    Dosage and administration details
    mRNA-1273.222 was administered per dose and schedule specified in the arm description.

    Number of subjects in period 1
    Part 1A: mRNA-1273 100 μg Part 1A: Placebo Part 1C-2: mRNA-1273 50 μg BD Part 2: mRNA-1273 50 μg Part 3: mRNA-1273.222 50 µg
    Started
    2490
    1243
    155
    52
    388
    Part 1: 1st Injection
    2486
    1240
    0 [1]
    0 [2]
    0 [3]
    Part 2: 1st Injection
    0 [4]
    0 [5]
    0 [6]
    52
    0 [7]
    Part 1: 2nd Injection
    2480
    1222
    0 [8]
    0 [9]
    0 [10]
    Part 2: 2nd Injection
    0 [11]
    0 [12]
    0 [13]
    50
    0 [14]
    Part 1C-2: BD
    0 [15]
    0 [16]
    155
    0 [17]
    0 [18]
    Part 3: 1 Dose
    0 [19]
    0 [20]
    0 [21]
    0 [22]
    388
    Part 3: 2 Doses
    0 [23]
    0 [24]
    0 [25]
    0 [26]
    335 [27]
    Safety Analysis Set
    2486
    1240
    155
    52
    388
    Solicited Safety Set
    2485
    1240
    125 [28]
    52
    387
    Per-Protocol (PP) Immunogenicity Subset
    340 [29]
    0 [30]
    136 [31]
    46
    373
    PP Set for Efficacy
    2142 [32]
    1044
    0 [33]
    0 [34]
    0 [35]
    Part 2 BD
    0 [36]
    0 [37]
    0 [38]
    19 [39]
    0 [40]
    PP Immunogenicity SARS-CoV-2 Positive
    0 [41]
    0 [42]
    0 [43]
    44
    372
    Completed
    2246
    279
    143
    41
    358
    Not completed
    244
    964
    12
    11
    30
         Physician decision
    2
    -
    -
    1
    1
         Consent withdrawn by subject
    112
    88
    2
    7
    15
         Protocol Deviation
    2
    2
    -
    -
    -
         Adverse event, non-fatal
    1
    -
    -
    -
    -
         Death
    -
    -
    -
    -
    1
         Pregnancy
    -
    -
    -
    -
    3
         Other than specified
    21
    229
    -
    -
    4
         Received another COVID-19 vaccine under EUA
    39
    630
    -
    -
    -
         Lost to follow-up
    67
    15
    10
    3
    6
    Notes
    [1] - The number of subjects at this milestone seems inconsistent with the number of subjects in the arm. It is expected that the number of subjects will be greater than, or equal to the number that completed, minus those who left.
    Justification: Value indicates the number of applicable participants for the milestone and dose group.
    [2] - The number of subjects at this milestone seems inconsistent with the number of subjects in the arm. It is expected that the number of subjects will be greater than, or equal to the number that completed, minus those who left.
    Justification: Value indicates the number of applicable participants for the milestone and dose group.
    [3] - The number of subjects at this milestone seems inconsistent with the number of subjects in the arm. It is expected that the number of subjects will be greater than, or equal to the number that completed, minus those who left.
    Justification: Value indicates the number of applicable participants for the milestone and dose group.
    [4] - The number of subjects at this milestone seems inconsistent with the number of subjects in the arm. It is expected that the number of subjects will be greater than, or equal to the number that completed, minus those who left.
    Justification: Value indicates the number of applicable participants for the milestone and dose group.
    [5] - The number of subjects at this milestone seems inconsistent with the number of subjects in the arm. It is expected that the number of subjects will be greater than, or equal to the number that completed, minus those who left.
    Justification: Value indicates the number of applicable participants for the milestone and dose group.
    [6] - The number of subjects at this milestone seems inconsistent with the number of subjects in the arm. It is expected that the number of subjects will be greater than, or equal to the number that completed, minus those who left.
    Justification: Value indicates the number of applicable participants for the milestone and dose group.
    [7] - The number of subjects at this milestone seems inconsistent with the number of subjects in the arm. It is expected that the number of subjects will be greater than, or equal to the number that completed, minus those who left.
    Justification: Value indicates the number of applicable participants for the milestone and dose group.
    [8] - The number of subjects at this milestone seems inconsistent with the number of subjects in the arm. It is expected that the number of subjects will be greater than, or equal to the number that completed, minus those who left.
    Justification: Value indicates the number of applicable participants for the milestone and dose group.
    [9] - The number of subjects at this milestone seems inconsistent with the number of subjects in the arm. It is expected that the number of subjects will be greater than, or equal to the number that completed, minus those who left.
    Justification: Value indicates the number of applicable participants for the milestone and dose group.
    [10] - The number of subjects at this milestone seems inconsistent with the number of subjects in the arm. It is expected that the number of subjects will be greater than, or equal to the number that completed, minus those who left.
    Justification: Value indicates the number of applicable participants for the milestone and dose group.
    [11] - The number of subjects at this milestone seems inconsistent with the number of subjects in the arm. It is expected that the number of subjects will be greater than, or equal to the number that completed, minus those who left.
    Justification: Value indicates the number of applicable participants for the milestone and dose group.
    [12] - The number of subjects at this milestone seems inconsistent with the number of subjects in the arm. It is expected that the number of subjects will be greater than, or equal to the number that completed, minus those who left.
    Justification: Value indicates the number of applicable participants for the milestone and dose group.
    [13] - The number of subjects at this milestone seems inconsistent with the number of subjects in the arm. It is expected that the number of subjects will be greater than, or equal to the number that completed, minus those who left.
    Justification: Value indicates the number of applicable participants for the milestone and dose group.
    [14] - The number of subjects at this milestone seems inconsistent with the number of subjects in the arm. It is expected that the number of subjects will be greater than, or equal to the number that completed, minus those who left.
    Justification: Value indicates the number of applicable participants for the milestone and dose group.
    [15] - The number of subjects at this milestone seems inconsistent with the number of subjects in the arm. It is expected that the number of subjects will be greater than, or equal to the number that completed, minus those who left.
    Justification: Value indicates the number of applicable participants for the milestone and dose group.
    [16] - The number of subjects at this milestone seems inconsistent with the number of subjects in the arm. It is expected that the number of subjects will be greater than, or equal to the number that completed, minus those who left.
    Justification: Value indicates the number of applicable participants for the milestone and dose group.
    [17] - The number of subjects at this milestone seems inconsistent with the number of subjects in the arm. It is expected that the number of subjects will be greater than, or equal to the number that completed, minus those who left.
    Justification: Value indicates the number of applicable participants for the milestone and dose group.
    [18] - The number of subjects at this milestone seems inconsistent with the number of subjects in the arm. It is expected that the number of subjects will be greater than, or equal to the number that completed, minus those who left.
    Justification: Value indicates the number of applicable participants for the milestone and dose group.
    [19] - The number of subjects at this milestone seems inconsistent with the number of subjects in the arm. It is expected that the number of subjects will be greater than, or equal to the number that completed, minus those who left.
    Justification: Value indicates the number of applicable participants for the milestone and dose group.
    [20] - The number of subjects at this milestone seems inconsistent with the number of subjects in the arm. It is expected that the number of subjects will be greater than, or equal to the number that completed, minus those who left.
    Justification: Value indicates the number of applicable participants for the milestone and dose group.
    [21] - The number of subjects at this milestone seems inconsistent with the number of subjects in the arm. It is expected that the number of subjects will be greater than, or equal to the number that completed, minus those who left.
    Justification: Value indicates the number of applicable participants for the milestone and dose group.
    [22] - The number of subjects at this milestone seems inconsistent with the number of subjects in the arm. It is expected that the number of subjects will be greater than, or equal to the number that completed, minus those who left.
    Justification: Value indicates the number of applicable participants for the milestone and dose group.
    [23] - The number of subjects at this milestone seems inconsistent with the number of subjects in the arm. It is expected that the number of subjects will be greater than, or equal to the number that completed, minus those who left.
    Justification: Value indicates the number of applicable participants for the milestone and dose group.
    [24] - The number of subjects at this milestone seems inconsistent with the number of subjects in the arm. It is expected that the number of subjects will be greater than, or equal to the number that completed, minus those who left.
    Justification: Value indicates the number of applicable participants for the milestone and dose group.
    [25] - The number of subjects at this milestone seems inconsistent with the number of subjects in the arm. It is expected that the number of subjects will be greater than, or equal to the number that completed, minus those who left.
    Justification: Value indicates the number of applicable participants for the milestone and dose group.
    [26] - The number of subjects at this milestone seems inconsistent with the number of subjects in the arm. It is expected that the number of subjects will be greater than, or equal to the number that completed, minus those who left.
    Justification: Value indicates the number of applicable participants for the milestone and dose group.
    [27] - The number of subjects at this milestone seems inconsistent with the number of subjects in the arm. It is expected that the number of subjects will be greater than, or equal to the number that completed, minus those who left.
    Justification: Value indicates the number of applicable participants for the milestone and dose group.
    [28] - The number of subjects at this milestone seems inconsistent with the number of subjects in the arm. It is expected that the number of subjects will be greater than, or equal to the number that completed, minus those who left.
    Justification: Value indicates the number of applicable participants for the milestone and dose group.
    [29] - The number of subjects at this milestone seems inconsistent with the number of subjects in the arm. It is expected that the number of subjects will be greater than, or equal to the number that completed, minus those who left.
    Justification: Value indicates the number of applicable participants for the milestone and dose group.
    [30] - The number of subjects at this milestone seems inconsistent with the number of subjects in the arm. It is expected that the number of subjects will be greater than, or equal to the number that completed, minus those who left.
    Justification: Value indicates the number of applicable participants for the milestone and dose group.
    [31] - The number of subjects at this milestone seems inconsistent with the number of subjects in the arm. It is expected that the number of subjects will be greater than, or equal to the number that completed, minus those who left.
    Justification: Value indicates the number of applicable participants for the milestone and dose group.
    [32] - The number of subjects at this milestone seems inconsistent with the number of subjects in the arm. It is expected that the number of subjects will be greater than, or equal to the number that completed, minus those who left.
    Justification: Value indicates the number of applicable participants for the milestone and dose group.
    [33] - The number of subjects at this milestone seems inconsistent with the number of subjects in the arm. It is expected that the number of subjects will be greater than, or equal to the number that completed, minus those who left.
    Justification: Value indicates the number of applicable participants for the milestone and dose group.
    [34] - The number of subjects at this milestone seems inconsistent with the number of subjects in the arm. It is expected that the number of subjects will be greater than, or equal to the number that completed, minus those who left.
    Justification: Value indicates the number of applicable participants for the milestone and dose group.
    [35] - The number of subjects at this milestone seems inconsistent with the number of subjects in the arm. It is expected that the number of subjects will be greater than, or equal to the number that completed, minus those who left.
    Justification: Value indicates the number of applicable participants for the milestone and dose group.
    [36] - The number of subjects at this milestone seems inconsistent with the number of subjects in the arm. It is expected that the number of subjects will be greater than, or equal to the number that completed, minus those who left.
    Justification: Value indicates the number of applicable participants for the milestone and dose group.
    [37] - The number of subjects at this milestone seems inconsistent with the number of subjects in the arm. It is expected that the number of subjects will be greater than, or equal to the number that completed, minus those who left.
    Justification: Value indicates the number of applicable participants for the milestone and dose group.
    [38] - The number of subjects at this milestone seems inconsistent with the number of subjects in the arm. It is expected that the number of subjects will be greater than, or equal to the number that completed, minus those who left.
    Justification: Value indicates the number of applicable participants for the milestone and dose group.
    [39] - The number of subjects at this milestone seems inconsistent with the number of subjects in the arm. It is expected that the number of subjects will be greater than, or equal to the number that completed, minus those who left.
    Justification: Value indicates the number of applicable participants for the milestone and dose group.
    [40] - The number of subjects at this milestone seems inconsistent with the number of subjects in the arm. It is expected that the number of subjects will be greater than, or equal to the number that completed, minus those who left.
    Justification: Value indicates the number of applicable participants for the milestone and dose group.
    [41] - The number of subjects at this milestone seems inconsistent with the number of subjects in the arm. It is expected that the number of subjects will be greater than, or equal to the number that completed, minus those who left.
    Justification: Value indicates the number of applicable participants for the milestone and dose group.
    [42] - The number of subjects at this milestone seems inconsistent with the number of subjects in the arm. It is expected that the number of subjects will be greater than, or equal to the number that completed, minus those who left.
    Justification: Value indicates the number of applicable participants for the milestone and dose group.
    [43] - The number of subjects at this milestone seems inconsistent with the number of subjects in the arm. It is expected that the number of subjects will be greater than, or equal to the number that completed, minus those who left.
    Justification: Value indicates the number of applicable participants for the milestone and dose group.
    Period 2
    Period 2 title
    Part 1C-1 BD
    Is this the baseline period?
    No
    Allocation method
    Not applicable
    Blinding used
    Not blinded

    Arms
    Arm title
    Part 1C-1: mRNA-1273 50 µg BD
    Arm description
    Participants received mRNA-1273 100 µg in blinded or cross-over phase (Parts 1A or 1B) and then a single BD of 50 μg mRNA-1273 IM injection on BD Day 1 in Part 1 C-1.
    Arm type
    Experimental

    Investigational medicinal product name
    mRNA-1273
    Investigational medicinal product code
    Other name
    Pharmaceutical forms
    Sterile concentrate
    Routes of administration
    Intramuscular use
    Dosage and administration details
    mRNA-1273 was administered per dose and schedule specified in the arm description.

    Number of subjects in period 2 [44]
    Part 1C-1: mRNA-1273 50 µg BD
    Started
    1408
    Safety Set
    1408
    Solicited Safety Set
    1351
    PPIS
    331 [45]
    PP Immunogenicity SARS-CoV-2 Negative
    267 [46]
    Completed
    1136
    Not completed
    272
         Physician decision
    3
         Consent withdrawn by subject
    123
         Protocol Deviation
    2
         Other than specified
    4
         Received another COVID-19 vaccine under EUA
    17
         Lost to follow-up
    123
    Notes
    [44] - The number of subjects starting the period is not consistent with the number completing the preceding period. It is expected the number of subjects starting the subsequent period will be the same as the number completing the preceding period.
    Justification: Not all participants who started in Part 1 received BD in Part 1C-1.
    [45] - The number of subjects at this milestone seems inconsistent with the number of subjects in the arm. It is expected that the number of subjects will be greater than, or equal to the number that completed, minus those who left.
    Justification: Value indicates the number of applicable participants for the milestone and dose group.
    [46] - The number of subjects at this milestone seems inconsistent with the number of subjects in the arm. It is expected that the number of subjects will be greater than, or equal to the number that completed, minus those who left.
    Justification: Value indicates the number of applicable participants for the milestone and dose group.
    Period 3
    Period 3 title
    Part 1B Crossover Phase
    Is this the baseline period?
    No
    Allocation method
    Not applicable
    Blinding used
    Not blinded

    Arms
    Arm title
    Part 1 B: mRNA-1273 100 µg
    Arm description
    Participants previously received 2 doses of placebo in the blinded phase and then received crossover vaccination with 100 μg of mRNA-1273.
    Arm type
    Experimental

    Investigational medicinal product name
    mRNA-1273
    Investigational medicinal product code
    Other name
    Pharmaceutical forms
    Sterile concentrate
    Routes of administration
    Intramuscular use
    Dosage and administration details
    mRNA-1273 was administered per dose and schedule specified in the arm description.

    Number of subjects in period 3 [47]
    Part 1 B: mRNA-1273 100 µg
    Started
    96
    Received First Injection on Day 1
    96
    Received Second Injection on Day 29
    93
    Safety Set
    96
    Completed
    93
    Not completed
    3
         Adverse event, non-fatal
    1
         Other than specified
    1
         Lost to follow-up
    1
    Notes
    [47] - The number of subjects starting the period is not consistent with the number completing the preceding period. It is expected the number of subjects starting the subsequent period will be the same as the number completing the preceding period.
    Justification: Not all participants who received placebo in Part 1 crossed over to Part 1B

    Baseline characteristics

    Close Top of page
    Baseline characteristics reporting groups
    Reporting group title
    Part 1A: mRNA-1273 100 μg
    Reporting group description
    Participants received 2 doses of 100 micrograms (μg) mRNA-1273 by intramuscular (IM) injection (Day 1 and Day 29).

    Reporting group title
    Part 1A: Placebo
    Reporting group description
    Participants received 2 doses of placebo matched to mRNA-1273 100 μg by IM injection (Day 1 and Day 29).

    Reporting group title
    Part 1C-2: mRNA-1273 50 μg BD
    Reporting group description
    Participants who completed primary COVID-19 vaccination series with a non-Moderna vaccine under emergency use authorization (EUA), received a single BD of 50 μg mRNA-1273 IM injection on BD Day 1.

    Reporting group title
    Part 2: mRNA-1273 50 μg
    Reporting group description
    Participants received 2 doses of 50 μg mRNA-1273 by IM injection (Day 1 and Day 29).

    Reporting group title
    Part 3: mRNA-1273.222 50 µg
    Reporting group description
    Participants received 1 dose of mRNA-1273.222 50 µg by IM injection (Day 1). Some participants may have received a second dose of mRNA-1273.222 50 µg at approximately 6 months after the first dose (Day 181).

    Reporting group values
    Part 1A: mRNA-1273 100 μg Part 1A: Placebo Part 1C-2: mRNA-1273 50 μg BD Part 2: mRNA-1273 50 μg Part 3: mRNA-1273.222 50 µg Total
    Number of subjects
    2490 1243 155 52 388 4328
    Age Categorical
    Units: Subjects
        In utero
    0 0 0 0 0 0
        Preterm newborn infants (gestational age < 37 wks)
    0 0 0 0 0 0
        Newborns (0-27 days)
    0 0 0 0 0 0
        Infants and toddlers (28 days-23 months)
    0 0 0 0 0 0
        Children (2-11 years)
    0 0 0 0 0 0
        Adolescents (12-17 years)
    2490 1243 155 52 388 4328
        Adults (18-64 years)
    0 0 0 0 0 0
        From 65-84 years
    0 0 0 0 0 0
        85 years and over
    0 0 0 0 0 0
    Gender Categorical
    Units: Subjects
        Female
    1206 607 78 26 185 2102
        Male
    1284 636 77 26 203 2226
    Subject analysis sets

    Subject analysis set title
    Study mRNA-1273-P301 (NCT04470427) mRNA-1273 100 μg
    Subject analysis set type
    Per protocol
    Subject analysis set description
    Participants (young adults; 18-25 years of age) received 100 μg mRNA-1273 on a 2 injection schedule in Study mRNA-1273-P301 (P301).

    Subject analysis set title
    Part 2: mRNA-1273 50 μg First Injection
    Subject analysis set type
    Safety analysis
    Subject analysis set description
    Participants received 1 dose of 50 μg mRNA-1273 by IM injection (Day 1).

    Subject analysis set title
    Part 2: mRNA-1273 50 μg Second Injection
    Subject analysis set type
    Safety analysis
    Subject analysis set description
    Participants received 2nd dose of 50 μg mRNA-1273 by IM injection (Day 29).

    Subject analysis set title
    Part 2: mRNA-1273 50 μg BD
    Subject analysis set type
    Safety analysis
    Subject analysis set description
    Participants received open-label mRNA-1273 50 µg in Part 2 and then a single BD of 50 μg mRNA-1273 IM injection on BD Day 1 in Part 2.

    Subject analysis set title
    Part 3: mRNA-1273.222 50 µg 1 Dose
    Subject analysis set type
    Safety analysis
    Subject analysis set description
    Participants received 1 dose of mRNA-1273.222 50 µg by IM injection (Day 1).

    Subject analysis set title
    Part 1A: mRNA-1273 100 μg
    Subject analysis set type
    Safety analysis
    Subject analysis set description
    Participants received at least 1 dose of the 2-dose series of 100 μg mRNA-1273 by IM injection (Day 1 and Day 29).

    Subject analysis set title
    Part 1A: Placebo
    Subject analysis set type
    Safety analysis
    Subject analysis set description
    Participants received at least 1 dose of the 2-dose series of placebo matched to mRNA-1273 100 μg by IM injection (Day 1 and Day 29).

    Subject analysis set title
    Part 1B: mRNA-1273 100 μg
    Subject analysis set type
    Safety analysis
    Subject analysis set description
    Participants previously received 2 doses of placebo in the blinded phase and then received crossover vaccination with 100 μg of mRNA-1273.

    Subject analysis set title
    Part 1C-1: mRNA-1273 50 µg BD
    Subject analysis set type
    Safety analysis
    Subject analysis set description
    Participants received mRNA-1273 100 µg in blinded or cross-over phase (Parts 1A or 1B) and then a single BD of 50 μg mRNA-1273 IM injection on BD Day 1 in Part 1 C-1.

    Subject analysis set title
    Part 1C-2: mRNA-1273 50 μg BD
    Subject analysis set type
    Safety analysis
    Subject analysis set description
    Participants who completed primary COVID-19 vaccination series with a non-Moderna vaccine under EUA, received a single BD of 50 μg mRNA-1273 IM injection on BD Day 1

    Subject analysis set title
    Part 2: mRNA-1273 50 μg
    Subject analysis set type
    Safety analysis
    Subject analysis set description
    Participants received at least 1 dose of the 2-dose series of 50 μg mRNA-1273 by IM injection (Day 1 and Day 29).

    Subject analysis sets values
    Study mRNA-1273-P301 (NCT04470427) mRNA-1273 100 μg Part 2: mRNA-1273 50 μg First Injection Part 2: mRNA-1273 50 μg Second Injection Part 2: mRNA-1273 50 μg BD Part 3: mRNA-1273.222 50 µg 1 Dose Part 1A: mRNA-1273 100 μg Part 1A: Placebo Part 1B: mRNA-1273 100 μg Part 1C-1: mRNA-1273 50 µg BD Part 1C-2: mRNA-1273 50 μg BD Part 2: mRNA-1273 50 μg
    Number of subjects
    296
    52
    50
    19
    388
    2486
    1240
    96
    1408
    155
    52
    Age Categorical
    Units: Subjects
        In utero
    0
        Preterm newborn infants (gestational age < 37 wks)
    0
        Newborns (0-27 days)
    0
        Infants and toddlers (28 days-23 months)
    0
        Children (2-11 years)
    0
        Adolescents (12-17 years)
    0
        Adults (18-64 years)
    296
        From 65-84 years
    0
        85 years and over
    0
    Age Continuous
    Units: years
        arithmetic mean (standard deviation)
    ( )
    ( )
    ( )
    ( )
    ( )
    ( )
    ( )
    ( )
    ( )
    ( )
    ( )
    Gender Categorical
    Units: Subjects
        Female
    153
        Male
    143

    End points

    Close Top of page
    End points reporting groups
    Reporting group title
    Part 1A: mRNA-1273 100 μg
    Reporting group description
    Participants received 2 doses of 100 micrograms (μg) mRNA-1273 by intramuscular (IM) injection (Day 1 and Day 29).

    Reporting group title
    Part 1A: Placebo
    Reporting group description
    Participants received 2 doses of placebo matched to mRNA-1273 100 μg by IM injection (Day 1 and Day 29).

    Reporting group title
    Part 1C-2: mRNA-1273 50 μg BD
    Reporting group description
    Participants who completed primary COVID-19 vaccination series with a non-Moderna vaccine under emergency use authorization (EUA), received a single BD of 50 μg mRNA-1273 IM injection on BD Day 1.

    Reporting group title
    Part 2: mRNA-1273 50 μg
    Reporting group description
    Participants received 2 doses of 50 μg mRNA-1273 by IM injection (Day 1 and Day 29).

    Reporting group title
    Part 3: mRNA-1273.222 50 µg
    Reporting group description
    Participants received 1 dose of mRNA-1273.222 50 µg by IM injection (Day 1). Some participants may have received a second dose of mRNA-1273.222 50 µg at approximately 6 months after the first dose (Day 181).
    Reporting group title
    Part 1C-1: mRNA-1273 50 µg BD
    Reporting group description
    Participants received mRNA-1273 100 µg in blinded or cross-over phase (Parts 1A or 1B) and then a single BD of 50 μg mRNA-1273 IM injection on BD Day 1 in Part 1 C-1.
    Reporting group title
    Part 1 B: mRNA-1273 100 µg
    Reporting group description
    Participants previously received 2 doses of placebo in the blinded phase and then received crossover vaccination with 100 μg of mRNA-1273.

    Subject analysis set title
    Study mRNA-1273-P301 (NCT04470427) mRNA-1273 100 μg
    Subject analysis set type
    Per protocol
    Subject analysis set description
    Participants (young adults; 18-25 years of age) received 100 μg mRNA-1273 on a 2 injection schedule in Study mRNA-1273-P301 (P301).

    Subject analysis set title
    Part 2: mRNA-1273 50 μg First Injection
    Subject analysis set type
    Safety analysis
    Subject analysis set description
    Participants received 1 dose of 50 μg mRNA-1273 by IM injection (Day 1).

    Subject analysis set title
    Part 2: mRNA-1273 50 μg Second Injection
    Subject analysis set type
    Safety analysis
    Subject analysis set description
    Participants received 2nd dose of 50 μg mRNA-1273 by IM injection (Day 29).

    Subject analysis set title
    Part 2: mRNA-1273 50 μg BD
    Subject analysis set type
    Safety analysis
    Subject analysis set description
    Participants received open-label mRNA-1273 50 µg in Part 2 and then a single BD of 50 μg mRNA-1273 IM injection on BD Day 1 in Part 2.

    Subject analysis set title
    Part 3: mRNA-1273.222 50 µg 1 Dose
    Subject analysis set type
    Safety analysis
    Subject analysis set description
    Participants received 1 dose of mRNA-1273.222 50 µg by IM injection (Day 1).

    Subject analysis set title
    Part 1A: mRNA-1273 100 μg
    Subject analysis set type
    Safety analysis
    Subject analysis set description
    Participants received at least 1 dose of the 2-dose series of 100 μg mRNA-1273 by IM injection (Day 1 and Day 29).

    Subject analysis set title
    Part 1A: Placebo
    Subject analysis set type
    Safety analysis
    Subject analysis set description
    Participants received at least 1 dose of the 2-dose series of placebo matched to mRNA-1273 100 μg by IM injection (Day 1 and Day 29).

    Subject analysis set title
    Part 1B: mRNA-1273 100 μg
    Subject analysis set type
    Safety analysis
    Subject analysis set description
    Participants previously received 2 doses of placebo in the blinded phase and then received crossover vaccination with 100 μg of mRNA-1273.

    Subject analysis set title
    Part 1C-1: mRNA-1273 50 µg BD
    Subject analysis set type
    Safety analysis
    Subject analysis set description
    Participants received mRNA-1273 100 µg in blinded or cross-over phase (Parts 1A or 1B) and then a single BD of 50 μg mRNA-1273 IM injection on BD Day 1 in Part 1 C-1.

    Subject analysis set title
    Part 1C-2: mRNA-1273 50 μg BD
    Subject analysis set type
    Safety analysis
    Subject analysis set description
    Participants who completed primary COVID-19 vaccination series with a non-Moderna vaccine under EUA, received a single BD of 50 μg mRNA-1273 IM injection on BD Day 1

    Subject analysis set title
    Part 2: mRNA-1273 50 μg
    Subject analysis set type
    Safety analysis
    Subject analysis set description
    Participants received at least 1 dose of the 2-dose series of 50 μg mRNA-1273 by IM injection (Day 1 and Day 29).

    Primary: Number of Participants With Solicited Local and Systemic Adverse Reactions (ARs)

    Close Top of page
    End point title
    Number of Participants With Solicited Local and Systemic Adverse Reactions (ARs) [1] [2]
    End point description
    Solicited ARs (local and systemic) were collected in an electronic diary (eDiary). Local ARs included injection site pain, injection site erythema (redness), injection site swelling/induration (hardness), and axillary (underarm) swelling or tenderness ipsilateral to the side of injection. Systemic ARs included fever, headache, fatigue, myalgia, arthralgia, nausea/vomiting, and chills. Solicited ARs considered causally related to injection were graded 1-4 (per Toxicity Grading Scale for Healthy Adult and Adolescent Volunteers Enrolled in Preventive Vaccine Clinical Trials); lower score indicated lower severity, and higher score indicated greater severity. Solicited Safety Set included participants who received at least 1 dose of study drug and contributed any solicited AR data. Investigator reviewed if the solicited AR was recorded as an adverse event (AE). A Summary of serious AEs (SAEs) and nonserious AEs ("Other"), regardless of causality, is located in the AE section.
    End point type
    Primary
    End point timeframe
    7 days post-vaccination
    Notes
    [1] - No statistical analyses have been specified for this primary end point. It is expected there is at least one statistical analysis for each primary end point.
    Justification: As prespecified in the protocol, no statistical analysis was conducted for this endpoint.
    [2] - The end point is not reporting statistics for all the arms in the baseline period. It is expected all the baseline period arms will be reported on when providing values for an end point on the baseline period.
    Justification: As prespecified in the protocol, no statistical analysis was conducted for this endpoint.
    End point values
    Part 1A: mRNA-1273 100 μg Part 1C-1: mRNA-1273 50 µg BD Part 1A: Placebo Part 1C-2: mRNA-1273 50 μg BD Part 2: mRNA-1273 50 μg First Injection Part 2: mRNA-1273 50 μg Second Injection Part 2: mRNA-1273 50 μg BD Part 3: mRNA-1273.222 50 µg 1 Dose
    Number of subjects analysed
    2485
    1351
    1240
    125
    52
    46
    19
    387
    Units: participants
        Grade 1
    586
    627
    585
    42
    25
    18
    7
    145
        Grade 2
    1250
    501
    293
    48
    16
    9
    0
    62
        Grade 3
    627
    150
    59
    9
    1
    3
    1
    25
        Grade 4
    3
    0
    1
    0
    0
    0
    0
    1
        Any Solicited AR
    2466
    1278
    938
    99
    42
    30
    8
    233
    No statistical analyses for this end point

    Primary: Number of Participants With Unsolicited AEs

    Close Top of page
    End point title
    Number of Participants With Unsolicited AEs [3] [4]
    End point description
    An AE was defined as any untoward medical occurrence associated with the use of a drug in humans, whether or not considered drug related. Any abnormal laboratory test result or other safety assessment, including one that worsened from baseline and was considered clinically significant by the Investigator was recorded as an AE. Non-serious SARs persisting beyond 7 days, leading to discontinuation, or medically attended were defined as AEs in Part 1/2 but not in Part 3. COVID-19/SARS-CoV-2 infections were AEs in Part1/2 but were considered clinical events for efficacy in Part 3 and not AEs. A Summary of SAEs and nonserious AEs ("Other"), regardless of causality, is located in the AE section. Safety Set: participants who received at least 1 dose of study drug.
    End point type
    Primary
    End point timeframe
    Up to 28 days post-vaccination
    Notes
    [3] - No statistical analyses have been specified for this primary end point. It is expected there is at least one statistical analysis for each primary end point.
    Justification: As prespecified in the protocol, no statistical analysis was conducted for this endpoint.
    [4] - The end point is not reporting statistics for all the arms in the baseline period. It is expected all the baseline period arms will be reported on when providing values for an end point on the baseline period.
    Justification: As prespecified in the protocol, no statistical analysis was conducted for this endpoint.
    End point values
    Part 1A: mRNA-1273 100 μg Part 1C-1: mRNA-1273 50 µg BD Part 1A: Placebo Part 1C-2: mRNA-1273 50 μg BD Part 2: mRNA-1273 50 μg Part 2: mRNA-1273 50 μg BD Part 3: mRNA-1273.222 50 µg 1 Dose
    Number of subjects analysed
    2486
    1405
    1240
    155
    52
    19
    388
    Units: participants
    582
    209
    237
    19
    10
    2
    52
    No statistical analyses for this end point

    Primary: Part 1A Geometric Mean Value of Serum Pseudovirus Neutralizing Antibody (nAb) ID50 Titers From Study P203 Vaccine Recipients at Day 57 Compared With Those From Young Adult (18 to 25 Years of Age) Vaccine Recipients (Day 57) in Study P301

    Close Top of page
    End point title
    Part 1A Geometric Mean Value of Serum Pseudovirus Neutralizing Antibody (nAb) ID50 Titers From Study P203 Vaccine Recipients at Day 57 Compared With Those From Young Adult (18 to 25 Years of Age) Vaccine Recipients (Day 57) in Study P301 [5]
    End point description
    Pseudovirus nAb ID50 titers were measured using pseudovirus neutralization assay (PsVNA) assay. Antibody values reported as below the lower limit of quantification (LLOQ) were replaced by 0.5*LLOQ. Values greater than the upper limit of quantification (ULOQ) were replaced by the ULOQ if actual values were not available (LLOQ: 18.5, ULOQ: 45118). Antibody levels were analyzed using an analysis of covariance (ANCOVA) model with the group variable (adolescents in P203 and young adults in P301) as fixed effect. The geometric least squares means are presented. PP Immunogenicity Set (PPIS): all randomized participants who received planned doses of study drug per schedule, complied with immunogenicity testing schedule, and had no major protocol deviations that impacted key or critical data.
    End point type
    Primary
    End point timeframe
    Day 57 Study P203/Day 57 Study P301
    Notes
    [5] - The end point is not reporting statistics for all the arms in the baseline period. It is expected all the baseline period arms will be reported on when providing values for an end point on the baseline period.
    Justification: As prespecified in the protocol, no statistical analysis was conducted for this endpoint.
    End point values
    Part 1A: mRNA-1273 100 μg Study mRNA-1273-P301 (NCT04470427) mRNA-1273 100 μg
    Number of subjects analysed
    340
    295
    Units: titer
        geometric mean (confidence interval 95%)
    1401.670 (1276.218 to 1539.453)
    1299.855 (1175.380 to 1437.511)
    Statistical analysis title
    Statistical Analysis 1
    Statistical analysis description
    Geometric mean ratio (GMR) of P203 vs P301
    Comparison groups
    Part 1A: mRNA-1273 100 μg v Study mRNA-1273-P301 (NCT04470427) mRNA-1273 100 μg
    Number of subjects included in analysis
    635
    Analysis specification
    Pre-specified
    Analysis type
    non-inferiority
    Method
    Parameter type
    GMR
    Point estimate
    1.078
    Confidence interval
         level
    95%
         sides
    2-sided
         lower limit
    0.94
         upper limit
    1.237

    Primary: Part 1A Seroresponse Rate (SRR) for Serum Pseudovirus nAb ID50 in Study P203 Vaccine Recipients at Day 57 Compared With Those From Young Adult (18 to 25 Years of Age) Vaccine Recipients (Day 57) in Study P301

    Close Top of page
    End point title
    Part 1A Seroresponse Rate (SRR) for Serum Pseudovirus nAb ID50 in Study P203 Vaccine Recipients at Day 57 Compared With Those From Young Adult (18 to 25 Years of Age) Vaccine Recipients (Day 57) in Study P301 [6]
    End point description
    Percentage of participants with seroresponse for pseudovirus nAb ID50 measured using PsVNA assay are reported. Seroresponse was defined as a change from below the LLOQ to equal above 4*LLOQ, or at least a 4-fold rise if baseline is equal to or above the LLOQ. P301 mRNA-1273 group included young adults (≥18 and ≤25 years) who received 2 doses of mRNA-1273 in P301 Part A and who were baseline SARS-CoV-2 negative in P301 Part A. PPIS: all randomized participants who received planned doses of study drug per schedule, complied with immunogenicity testing schedule, and had no major protocol deviations that impacted key or critical data.
    End point type
    Primary
    End point timeframe
    Day 57 Study P203/Day 57 Study P301
    Notes
    [6] - The end point is not reporting statistics for all the arms in the baseline period. It is expected all the baseline period arms will be reported on when providing values for an end point on the baseline period.
    Justification: As prespecified in the protocol, no statistical analysis was conducted for this endpoint.
    End point values
    Part 1A: mRNA-1273 100 μg Study mRNA-1273-P301 (NCT04470427) mRNA-1273 100 μg
    Number of subjects analysed
    340
    295
    Units: percentage of participants
        number (confidence interval 95%)
    98.8 (97.0 to 99.7)
    99.0 (97.1 to 99.8)
    Statistical analysis title
    Statistical Analysis 1
    Statistical analysis description
    SRR difference of P203 vs P301
    Comparison groups
    Part 1A: mRNA-1273 100 μg v Study mRNA-1273-P301 (NCT04470427) mRNA-1273 100 μg
    Number of subjects included in analysis
    635
    Analysis specification
    Pre-specified
    Analysis type
    non-inferiority
    Method
    Parameter type
    percentage difference
    Point estimate
    -0.2
    Confidence interval
         level
    95%
         sides
    2-sided
         lower limit
    -2.1
         upper limit
    1.9

    Primary: Part 1C-1 Geometric Mean Concentration (GMC) of Serum Pseudovirus nAb Against the Original Strain After the BD in Study P203 at BD Day 29 Compared With Those From Young Adult (18 to 25 Years of Age) Vaccine Recipients (Day 57) in Study P301

    Close Top of page
    End point title
    Part 1C-1 Geometric Mean Concentration (GMC) of Serum Pseudovirus nAb Against the Original Strain After the BD in Study P203 at BD Day 29 Compared With Those From Young Adult (18 to 25 Years of Age) Vaccine Recipients (Day 57) in Study P301
    End point description
    Pseudovirus nAb were measured using PsVNA assay. Antibody values reported as below the LLOQ were replaced by 0.5*LLOQ. Values greater than the ULOQ were replaced by the ULOQ if actual values were not available (LLOQ: 10, ULOQ: 281600). PPIS-Neg: All participants who received mRNA-1273 in the Blinded Phase per schedule, received BD, had a negative SARS-CoV-2 status at baseline (pre-Dose 1 of the Blinded Phase), had BD-Day 1 and BD-Day 29 Ab assessment for the analysis endpoint, had no major protocol deviations that impacted key or critical data, and were pre-booster SARS-CoV-2 negative, defined as no virologic or serologic evidence of SARSCoV-2 infection on or before BD-Day 1 (pre-booster). P301 mRNA-1273 group included young adults (≥18 and ≤25 years) who received 2 doses of mRNA-1273 in P301 Part A and who were baseline SARS-CoV-2 negative in P301 Part A. 'Overall number of participants analyzed' = participants evaluable for this endpoint.
    End point type
    Primary
    End point timeframe
    BD Day 29 Study P203/Day 57 Study P301
    End point values
    Part 1C-1: mRNA-1273 50 µg BD Study mRNA-1273-P301 (NCT04470427) mRNA-1273 100 μg
    Number of subjects analysed
    264
    294
    Units: arbitrary units (AU)/mL
        geometric mean (confidence interval 95%)
    7102.0 (6553.2 to 7696.8)
    1400.4 (1272.7 to 1541.0)
    Statistical analysis title
    Statistical Analysis 1
    Statistical analysis description
    GMC Comparison of BD-Day 29 P203 vs Day 57 P301
    Comparison groups
    Part 1C-1: mRNA-1273 50 µg BD v Study mRNA-1273-P301 (NCT04470427) mRNA-1273 100 μg
    Number of subjects included in analysis
    558
    Analysis specification
    Pre-specified
    Analysis type
    non-inferiority
    Method
    Parameter type
    GMR
    Point estimate
    5.071
    Confidence interval
         level
    95%
         sides
    2-sided
         lower limit
    4.477
         upper limit
    5.745

    Primary: Part 1C-1 SRR of Serum Pseudovirus nAb Against the Original Strain After the BD in Study P203 at BD Day 29 Compared With Those From Young Adult (18 to 25 Years of Age) Vaccine Recipients (Day 57) in Study P301

    Close Top of page
    End point title
    Part 1C-1 SRR of Serum Pseudovirus nAb Against the Original Strain After the BD in Study P203 at BD Day 29 Compared With Those From Young Adult (18 to 25 Years of Age) Vaccine Recipients (Day 57) in Study P301
    End point description
    Percentage of participants with seroresponse for pseudovirus nAb measured using PsVNA assay are reported. Seroresponse relative to pre-Dose 1 (baseline) at a participant level was defined as a change from below the LLOQ to equal or above 4 * LLOQ, or at least a 4-fold-rise if baseline was equal to or above LLOQ. PPIS-Neg: all participants who received mRNA-1273 in the Blinded Phase per schedule, received BD, had a negative SARS-CoV-2 status at baseline (pre-Dose 1 of the Blinded Phase), had BD-Day 1 and BD-Day 29 Ab assessment, had no major protocol deviations that impacted key or critical data, and were pre-booster SARS-CoV-2 negative, defined as no virologic or serologic evidence of SARSCoV-2 infection on or before BD-Day 1. P301 mRNA-1273 group included young adults (≥18 and ≤25 years) who received 2 doses of mRNA-1273 in P301 Part A and who were baseline SARS-CoV-2 negative in P301 Part A.
    End point type
    Primary
    End point timeframe
    BD Day 29 Study P203/Day 57 Study P301
    End point values
    Part 1C-1: mRNA-1273 50 µg BD Study mRNA-1273-P301 (NCT04470427) mRNA-1273 100 μg
    Number of subjects analysed
    264
    294
    Units: percentage of participants
        number (confidence interval 95%)
    100.0 (98.6 to 100.0)
    99.3 (97.6 to 99.9)
    Statistical analysis title
    Statistical Analysis 1
    Statistical analysis description
    SRR difference of P203 BD-Day 29 vs P301 Day 57
    Comparison groups
    Part 1C-1: mRNA-1273 50 µg BD v Study mRNA-1273-P301 (NCT04470427) mRNA-1273 100 μg
    Number of subjects included in analysis
    558
    Analysis specification
    Pre-specified
    Analysis type
    non-inferiority
    Method
    Parameter type
    SRR Difference
    Point estimate
    0.7
    Confidence interval
         level
    95%
         sides
    2-sided
         lower limit
    -0.8
         upper limit
    2.4

    Primary: Part 3 GMC of nAb post Dose 1 mRNA 1273.222 Against Omicron BA.4/BA.5 Compared With Those From Young Adult (18 to 25 Years of Age) Vaccine Recipients (Day 57) in Study P301

    Close Top of page
    End point title
    Part 3 GMC of nAb post Dose 1 mRNA 1273.222 Against Omicron BA.4/BA.5 Compared With Those From Young Adult (18 to 25 Years of Age) Vaccine Recipients (Day 57) in Study P301 [7]
    End point description
    Antibody values reported as below the LLOQ were replaced by 0.5*LLOQ. Values greater than the ULOQ were replaced by the ULOQ if actual values were not available (LLOQ: 103 AU/mL, ULOQ: 28571 AU/mL). ANCOVA model with the group variable (adolescents in P203 and young adults in P301) as fixed effect. The geometric least squares means are presented. P301 mRNA-1273 group included young adults (≥18 and ≤25 years) who received 2 doses of mRNA 1273 and were baseline SARS-CoV-2 negative. PPIS-Baseline SARS-CoV-2 Positive (PPIS-POS): all participants who received Dose 1 of mRNA-1273.222, had both Baseline (pre Dose 1) and Day 29 antibody assessment, had no major protocol deviations that impacted key or critical data, had not received off-study COVID-19 vaccination prior to Day 29, and were SARS-CoV-2 positive (serologic and/or virologic evidence of prior SARS-CoV-2 infection) at baseline. "Overall number of participants analyzed' = participants evaluable for this endpoint.
    End point type
    Primary
    End point timeframe
    Day 29 Study P203/Day 57 Study P301
    Notes
    [7] - The end point is not reporting statistics for all the arms in the baseline period. It is expected all the baseline period arms will be reported on when providing values for an end point on the baseline period.
    Justification: As prespecified in the protocol, no statistical analysis was conducted for this endpoint.
    End point values
    Part 3: mRNA-1273.222 50 µg Study mRNA-1273-P301 (NCT04470427) mRNA-1273 100 μg
    Number of subjects analysed
    372
    294
    Units: AU/mL
        geometric mean (confidence interval 95%)
    2727.8 (2558.7 to 2908.1)
    56.6 (52.7 to 60.8)
    Statistical analysis title
    Statistical Analysis 1
    Statistical analysis description
    GMR of P203 vs P301
    Comparison groups
    Part 3: mRNA-1273.222 50 µg v Study mRNA-1273-P301 (NCT04470427) mRNA-1273 100 μg
    Number of subjects included in analysis
    666
    Analysis specification
    Pre-specified
    Analysis type
    superiority
    Method
    Parameter type
    GMR
    Point estimate
    48.191
    Confidence interval
         level
    95%
         sides
    2-sided
         lower limit
    43.765
         upper limit
    53.065

    Primary: Part 1C-2 GMC of Post-booster Pseudovirus nAb Against Ancestral Strain at BD Day 29

    Close Top of page
    End point title
    Part 1C-2 GMC of Post-booster Pseudovirus nAb Against Ancestral Strain at BD Day 29 [8] [9]
    End point description
    Antibody values reported as below the LLOQ were replaced by 0.5 * LLOQ. Values greater than the ULOQ were replaced by the ULOQ if actual values were not available (LLOQ: 10 AU/mL, ULOQ: 111433 AU/mL). PPIS: all randomized participants who received BD in Part 1C-2, had BD-Day 29 Ab assessment for the analysis endpoint, and had no major protocol deviations that impacted key or critical data. 'Overall number of participants analyzed' = participants evaluable for this endpoint.
    End point type
    Primary
    End point timeframe
    BD Day 29
    Notes
    [8] - No statistical analyses have been specified for this primary end point. It is expected there is at least one statistical analysis for each primary end point.
    Justification: Part 1C-2 enrollment discontinued before planned number of participants were met for prespecified statistical analysis to be conducted.
    [9] - The end point is not reporting statistics for all the arms in the baseline period. It is expected all the baseline period arms will be reported on when providing values for an end point on the baseline period.
    Justification: Part 1C-2 enrollment discontinued before planned number of participants were met for prespecified statistical analysis to be conducted.
    End point values
    Part 1C-2: mRNA-1273 50 μg BD
    Number of subjects analysed
    134
    Units: AU/mL
        geometric mean (confidence interval 95%)
    9433.4 (8496.8 to 10473.3)
    No statistical analyses for this end point

    Primary: Part 2 GMC of the Pseudovirus nAb Against Ancestral Strain at Day 57

    Close Top of page
    End point title
    Part 2 GMC of the Pseudovirus nAb Against Ancestral Strain at Day 57 [10] [11]
    End point description
    Antibody values reported as below the LLOQ were replaced by 0.5 * LLOQ. Values greater than the ULOQ were replaced by the ULOQ if actual values were not available (LLOQ: 10 AU/mL, ULOQ: 111433 AU/mL). PPIS: all randomized participants who received at least 1 dose of the planned study drug, had Ab assessment for the analysis endpoint, and had no major protocol deviations that could impact key or critical data.
    End point type
    Primary
    End point timeframe
    Day 57
    Notes
    [10] - No statistical analyses have been specified for this primary end point. It is expected there is at least one statistical analysis for each primary end point.
    Justification: Part 2, due to the smaller number of participants enrolled, hypothesis testing was not conducted. Descriptive analysis included.
    [11] - The end point is not reporting statistics for all the arms in the baseline period. It is expected all the baseline period arms will be reported on when providing values for an end point on the baseline period.
    Justification: Part 2, due to the smaller number of participants enrolled, hypothesis testing was not conducted. Descriptive analysis included.
    End point values
    Part 2: mRNA-1273 50 μg
    Number of subjects analysed
    46
    Units: AU/mL
        geometric mean (confidence interval 95%)
    7351.5 (5621.7 to 9613.7)
    No statistical analyses for this end point

    Primary: Part 3 GMC of nAb post Dose 1 mRNA 1273.222 Against SARS-CoV-2 Ancestral Strain Compared With Those From Young Adult (18 to 25 Years of Age) Vaccine Recipients (Day 57) in Study P301

    Close Top of page
    End point title
    Part 3 GMC of nAb post Dose 1 mRNA 1273.222 Against SARS-CoV-2 Ancestral Strain Compared With Those From Young Adult (18 to 25 Years of Age) Vaccine Recipients (Day 57) in Study P301 [12]
    End point description
    Antibody values reported as below the LLOQ were replaced by 0.5*LLOQ. Values greater than the ULOQ were replaced by the ULOQ if actual values were not available (LLOQ: 10 AU/mL, ULOQ: 111433 AU/mL). ANCOVA model with the group variable (adolescents in P203 and young adults in P301) as fixed effect. The geometric least squares means are presented. P301 mRNA-1273 group included young adults (≥18 and ≤25 years) who received 2 doses of mRNA-1273 and were baseline SARS-CoV-2 negative. PPIS-POS: all participants who received Dose 1 of mRNA-1273.222, had both Baseline (pre Dose 1) and Day 29 antibody assessment, had no major protocol deviations that impacted key or critical data, had not received off-study COVID-19 vaccination prior to Day 29, and were SARS-CoV-2 positive (serologic and/or virologic evidence of prior SARS-CoV-2 infection) at baseline. 'Overall number of participants analyzed' = participants evaluable for this endpoint.
    End point type
    Primary
    End point timeframe
    Day 29 Study P203/Day 57 Study P301
    Notes
    [12] - The end point is not reporting statistics for all the arms in the baseline period. It is expected all the baseline period arms will be reported on when providing values for an end point on the baseline period.
    Justification: As prespecified in the protocol, no statistical analysis was conducted for this endpoint.
    End point values
    Part 3: mRNA-1273.222 50 µg Study mRNA-1273-P301 (NCT04470427) mRNA-1273 100 μg
    Number of subjects analysed
    371
    295
    Units: AU/mL
        geometric mean (confidence interval 95%)
    7603.9 (7004.6 to 8254.6)
    1692.3 (1543.4 to 1855.5)
    Statistical analysis title
    Statistical Analysis 1
    Statistical analysis description
    GMR of P203 vs P301
    Comparison groups
    Part 3: mRNA-1273.222 50 µg v Study mRNA-1273-P301 (NCT04470427) mRNA-1273 100 μg
    Number of subjects included in analysis
    666
    Analysis specification
    Pre-specified
    Analysis type
    non-inferiority
    Method
    Parameter type
    GMR
    Point estimate
    4.493
    Confidence interval
         level
    95%
         sides
    2-sided
         lower limit
    3.972
         upper limit
    5.083

    Primary: Part 2 SRR of Pseudovirus nAb Against Ancestral Strain

    Close Top of page
    End point title
    Part 2 SRR of Pseudovirus nAb Against Ancestral Strain [13] [14]
    End point description
    Percentage of participants with seroresponse for pseudovirus nAb measured using PsVNA assay are reported. Seroresponse relative to pre-Dose 1 (baseline) at a participant level was defined as a change from below the LLOQ to equal or above 4 * LLOQ, or at least a 4-fold-rise if baseline was equal to or above the LLOQ. PPIS: all randomized participants who received at least 1 dose of the planned study drug, had Ab assessment for the analysis endpoint, and had no major protocol deviations that could impact key or critical data.
    End point type
    Primary
    End point timeframe
    Day 57
    Notes
    [13] - No statistical analyses have been specified for this primary end point. It is expected there is at least one statistical analysis for each primary end point.
    Justification: Part 2, due to the smaller number of participants enrolled, hypothesis testing was not conducted. Descriptive analysis included.
    [14] - The end point is not reporting statistics for all the arms in the baseline period. It is expected all the baseline period arms will be reported on when providing values for an end point on the baseline period.
    Justification: Part 2, due to the smaller number of participants enrolled, hypothesis testing was not conducted. Descriptive analysis included.
    End point values
    Part 2: mRNA-1273 50 μg
    Number of subjects analysed
    46
    Units: percentage of participants
        number (confidence interval 95%)
    91.3 (79.2 to 97.6)
    No statistical analyses for this end point

    Primary: Number of Participants With SAEs, AEs of Special Interest (AESIs), Medically Attended AEs (MAAEs), and AEs leading to Study Discontinuation

    Close Top of page
    End point title
    Number of Participants With SAEs, AEs of Special Interest (AESIs), Medically Attended AEs (MAAEs), and AEs leading to Study Discontinuation [15] [16]
    End point description
    SAE was defined as any AE that resulted in death, was life-threatening, required inpatient hospitalization or prolongation of existing hospitalization, resulted in disability/permanent damage, was a congenital anomaly/birth defect, or was an important medical event. AESIs included thrombocytopenia, new onset of or worsening of the protocol specified neurologic diseases, anaphylaxis, and myocarditis/pericarditis. MAAE was an AE that led to an unscheduled visit to a healthcare practitioner, included visits to a study site for unscheduled assessments (for example, abnormal laboratory follow-up, and visits to healthcare practitioners external to the study site [for example, urgent care, primary care physician]). Number of participants with SAEs, AESIs, MAAEs, and AEs leading to study discontinuation up to end of study (EOS) are reported in this endpoint. Participants who received at least 1 dose of mRNA-1273 were included in the analysis.
    End point type
    Primary
    End point timeframe
    Day 1 up to Day 751 (end of study [EOS])
    Notes
    [15] - No statistical analyses have been specified for this primary end point. It is expected there is at least one statistical analysis for each primary end point.
    Justification: As prespecified in the protocol, no statistical analysis was conducted for this endpoint.
    [16] - The end point is not reporting statistics for all the arms in the baseline period. It is expected all the baseline period arms will be reported on when providing values for an end point on the baseline period.
    Justification: As prespecified in the protocol, no statistical analysis was conducted for this endpoint.
    End point values
    Part 1A: mRNA-1273 100 μg Part 1C-1: mRNA-1273 50 µg BD Part 1C-2: mRNA-1273 50 μg BD Part 2: mRNA-1273 50 μg Part 3: mRNA-1273.222 50 µg Part 2: mRNA-1273 50 μg BD Part 1B: mRNA-1273 100 μg
    Number of subjects analysed
    2486
    1408
    155
    52
    388
    19
    96
    Units: participants
        SAEs
    21
    9
    3
    0
    16
    0
    2
        AESIs
    17
    9
    1
    0
    3
    0
    0
        MAAEs
    1040
    541
    45
    12
    183
    7
    31
        AEs Leading to Study Discontinuation
    0
    0
    0
    0
    1
    0
    0
    No statistical analyses for this end point

    Secondary: Part 1A Number of Participants with a SARS-CoV-2 Infection (Symptomatic or Asymptomatic)

    Close Top of page
    End point title
    Part 1A Number of Participants with a SARS-CoV-2 Infection (Symptomatic or Asymptomatic) [17]
    End point description
    SARS-CoV-2 infection was defined in participants with negative SARS-CoV-2 status at baseline: bAb level against SARS-CoV-2 nucleocapsid protein negative at Day 1, that became positive postbaseline; or positive postbaseline. PP Set for Efficacy: all randomized participants who received planned doses of study drug, had no immunologic or virologic evidence of prior COVID-19, and had no major protocol deviations that impact key or critical efficacy data.
    End point type
    Secondary
    End point timeframe
    Day 43 (14 days after second injection) up to a median follow up of 2.5 months after second injection
    Notes
    [17] - The end point is not reporting statistics for all the arms in the baseline period. It is expected all the baseline period arms will be reported on when providing values for an end point on the baseline period.
    Justification: As prespecified in the protocol, no statistical analysis was conducted for this endpoint.
    End point values
    Part 1A: mRNA-1273 100 μg Part 1A: Placebo
    Number of subjects analysed
    2142
    1044
    Units: participants
    22
    25
    Statistical analysis title
    Statistical Analysis 1
    Statistical analysis description
    Vaccine efficacy (VE, percent), was defined as 1 - ratio of incidence rate (mRNA-1273 vs. placebo).
    Comparison groups
    Part 1A: mRNA-1273 100 μg v Part 1A: Placebo
    Number of subjects included in analysis
    3186
    Analysis specification
    Pre-specified
    Analysis type
    other [18]
    Method
    VE
    Parameter type
    VE
    Point estimate
    60.3
    Confidence interval
         level
    95%
         sides
    2-sided
         lower limit
    26.6
         upper limit
    78.6
    Notes
    [18] - The 95% confidence interval (CI) of the ratio was calculated using the exact method conditional upon the total number of cases, adjusting for person-years.

    Secondary: Part 1A Number of Participants With Asymptomatic SARS-CoV-2 Infection

    Close Top of page
    End point title
    Part 1A Number of Participants With Asymptomatic SARS-CoV-2 Infection [19]
    End point description
    Asymptomatic SARS-CoV-2 infection was defined as absence of symptoms and a positive RT-PCR or serology test (bAb levels against SARS-CoV-2 nucleocapsid protein) post dosing in participants who did not have an infection at baseline or pre-Dose 1. PP Set for Efficacy: all randomized participants who received planned doses of study drug, had no immunologic or virologic evidence of prior COVID-19, and had no major protocol deviations that impact key or critical efficacy data.
    End point type
    Secondary
    End point timeframe
    Day 43 (14 days after second injection) up to a median follow up of 2.5 months after second injection
    Notes
    [19] - The end point is not reporting statistics for all the arms in the baseline period. It is expected all the baseline period arms will be reported on when providing values for an end point on the baseline period.
    Justification: As prespecified in the protocol, no statistical analysis was conducted for this endpoint.
    End point values
    Part 1A: mRNA-1273 100 μg Part 1A: Placebo
    Number of subjects analysed
    2142
    1044
    Units: participants
    20
    16
    Statistical analysis title
    Statistical Analysis 1
    Statistical analysis description
    VE (percent), was defined as 1 - ratio of incidence rate (mRNA-1273 vs. placebo).
    Comparison groups
    Part 1A: mRNA-1273 100 μg v Part 1A: Placebo
    Number of subjects included in analysis
    3186
    Analysis specification
    Pre-specified
    Analysis type
    other [20]
    Method
    VE
    Parameter type
    VE
    Point estimate
    43.5
    Confidence interval
         level
    95%
         sides
    2-sided
         lower limit
    -16.5
         upper limit
    72.2
    Notes
    [20] - The 95% CI of the ratio was calculated using the exact method conditional upon the total number of cases, adjusting for person-years.

    Secondary: Part 1A Number of Participants with a First Occurrence of Symptomatic COVID-19

    Close Top of page
    End point title
    Part 1A Number of Participants with a First Occurrence of Symptomatic COVID-19 [21]
    End point description
    COVID-19 was defined as symptomatic disease based on the following criteria: participants experienced at least 2 of the following systemic symptoms: fever (≥ 38ºC/≥ 100.4ºF), chills, myalgia, headache, sore throat, new olfactory and taste disorder(s); or experienced at least 1 of the following respiratory signs/symptoms: cough, shortness of breath or difficulty breathing, or clinical or radiographical evidence of pneumonia; and had at least 1 NP swab, nasal swab, or saliva sample (or respiratory sample, if hospitalized) positive for SARS-CoV-2. PP Set for Efficacy: all randomized participants who received planned doses of study drug, had no immunologic or virologic evidence of prior COVID-19, and had no major protocol deviations that impact key or critical efficacy data.
    End point type
    Secondary
    End point timeframe
    Day 43 (14 days after second injection) up to 2.5 months after second injection
    Notes
    [21] - The end point is not reporting statistics for all the arms in the baseline period. It is expected all the baseline period arms will be reported on when providing values for an end point on the baseline period.
    Justification: As prespecified in the protocol, no statistical analysis was conducted for this endpoint.
    End point values
    Part 1A: mRNA-1273 100 μg Part 1A: Placebo
    Number of subjects analysed
    2142
    1044
    Units: participants
    0
    6
    Statistical analysis title
    Statistical Analysis 1
    Statistical analysis description
    VE (percent), was defined as 1 - ratio of incidence rate (mRNA-1273 vs. placebo).
    Comparison groups
    Part 1A: mRNA-1273 100 μg v Part 1A: Placebo
    Number of subjects included in analysis
    3186
    Analysis specification
    Pre-specified
    Analysis type
    other [22]
    Method
    VE
    Parameter type
    VE
    Point estimate
    100
    Confidence interval
         level
    95%
         sides
    2-sided
         lower limit
    61.2
         upper limit
    9999
    Notes
    [22] - The 95% CI of the ratio was calculated using the exact method conditional upon the total number of cases, adjusting for person-years. 9999= not estimable (NE, not reached).

    Secondary: Part 1A Number of Participants with Secondary Case Definition of COVID-19 (Center for Disease Control and Prevention [CDC] Case Definition)

    Close Top of page
    End point title
    Part 1A Number of Participants with Secondary Case Definition of COVID-19 (Center for Disease Control and Prevention [CDC] Case Definition) [23]
    End point description
    Secondary case definition of COVID-19 was defined by the following criteria: 1 systemic or respiratory symptoms: fever (temperature > 38ºC/≥ 100.4ºF), or chills, cough, shortness of breath or difficulty breathing, fatigue, muscle aches, or body aches, headache, new loss of taste or smell, sore throat, congestion or runny nose, nausea, or vomiting or diarrhea, and at least one positive test for SARS-CoV-2. PP Set for Efficacy: all randomized participants who received planned doses of study drug, had no immunologic or virologic evidence of prior COVID-19, and had no major protocol deviations that impact key or critical efficacy data.
    End point type
    Secondary
    End point timeframe
    Day 43 (14 days after second injection) up to a median follow up of 2.5 months after second injection
    Notes
    [23] - The end point is not reporting statistics for all the arms in the baseline period. It is expected all the baseline period arms will be reported on when providing values for an end point on the baseline period.
    Justification: As prespecified in the protocol, no statistical analysis was conducted for this endpoint.
    End point values
    Part 1A: mRNA-1273 100 μg Part 1A: Placebo
    Number of subjects analysed
    2142
    1044
    Units: participants
    2
    9
    Statistical analysis title
    Statistical Analysis 1
    Statistical analysis description
    VE (percent), was defined as 1 - ratio of incidence rate (mRNA-1273 vs. placebo).
    Comparison groups
    Part 1A: mRNA-1273 100 μg v Part 1A: Placebo
    Number of subjects included in analysis
    3186
    Analysis specification
    Pre-specified
    Analysis type
    other [24]
    Method
    VE
    Parameter type
    VE
    Point estimate
    89.9
    Confidence interval
         level
    95%
         sides
    2-sided
         lower limit
    51
         upper limit
    98.9
    Notes
    [24] - The 95% CI of the ratio was calculated using the exact method conditional upon the total number of cases, adjusting for person-years.

    Secondary: Part 1C-1 SRR of the Post-booster Serum bAb Against Variants of Interest (B.1.1.7, B.1.351, B.1.617.2, and P.1) as Measured by MSD

    Close Top of page
    End point title
    Part 1C-1 SRR of the Post-booster Serum bAb Against Variants of Interest (B.1.1.7, B.1.351, B.1.617.2, and P.1) as Measured by MSD
    End point description
    Seroresponse from baseline (pre-Dose 1) at a participant level was defined as a change from below the LLOQ to equal or above 4 * LLOQ, or at least a 4-fold-rise if baseline (pre-Dose 1 is equal to or above the LLOQ. PPIS: all randomized participants who received planned doses of study drug per schedule, complied with immunogenicity testing schedule, and had no major protocol deviations that impacted key or critical data. 'Overall number of participants analyzed' = participants evaluable for this endpoint.
    End point type
    Secondary
    End point timeframe
    BD Day 29
    End point values
    Part 1C-1: mRNA-1273 50 µg BD
    Number of subjects analysed
    324
    Units: Percentage of participants
    number (confidence interval 95%)
        B.1.1.7
    100.0 (98.9 to 100.0)
        B.1.351
    100.0 (98.9 to 100.0)
        B.1.617.2
    100.0 (98.9 to 100.0)
        P.1
    100.0 (98.9 to 100.0)
    No statistical analyses for this end point

    Secondary: Part 1C-1 GMC of Post-booster Pseudovirus nAb Against Variant Strain (B.1.1.529)

    Close Top of page
    End point title
    Part 1C-1 GMC of Post-booster Pseudovirus nAb Against Variant Strain (B.1.1.529)
    End point description
    Post-booster Pseudovirus nAb against B.1.1.529 (LLOQ: 8 AU/mL, ULOQ: 24503 AU/mL). Antibody values reported as below the LLOQ were replaced by 0.5 * LLOQ. Values greater than the ULOQ were replaced by the ULOQ if actual values were not available. PP IS: all randomized participants who received planned doses of study drug per schedule, complied with immunogenicity testing schedule, and had no major protocol deviations that impacted key or critical data. 'Overall number of participants analyzed' = participants evaluable for this endpoint.
    End point type
    Secondary
    End point timeframe
    BD Day 29
    End point values
    Part 1C-1: mRNA-1273 50 µg BD
    Number of subjects analysed
    331
    Units: AU/mL
        geometric mean (confidence interval 95%)
    943.4 (853.5 to 1042.8)
    No statistical analyses for this end point

    Secondary: Part 3 SRR of Serum Pseudovirus nAb Post Dose 1 of mRNA-1273.222 Against Omicron BA.4/BA.5 Compared with Young Adults (Study P301)

    Close Top of page
    End point title
    Part 3 SRR of Serum Pseudovirus nAb Post Dose 1 of mRNA-1273.222 Against Omicron BA.4/BA.5 Compared with Young Adults (Study P301) [25]
    End point description
    Seroresponse from pre Dose 1 Baseline at a participant level was defined as a change from below the LLOQ to equal or above 4 * LLOQ, or at least a 4-fold rise if Baseline was equal to or above the LLOQ. P301 mRNA-1273 group included young adults (≥18 and ≤25 years) who received 2 doses of mRNA-1273 in P301 Part A and who were baseline SARS-CoV-2 negative in P301 Part A. PPIS-POS: all participants who received Dose 1 of mRNA-1273.222, had both Baseline (pre Dose 1) and Day 29 antibody assessment, had no major protocol deviations that impacted key or critical data, had not received off-study COVID-19 vaccination prior to Day 29 Visit, and who were SARS-CoV-2 positive (serologic and/or virologic evidence of prior SARS-CoV-2 infection) at baseline. ‘Overall number of participants analyzed = participants evaluable for this endpoint.
    End point type
    Secondary
    End point timeframe
    Day 29 Study P203/Day 57 Study P301
    Notes
    [25] - The end point is not reporting statistics for all the arms in the baseline period. It is expected all the baseline period arms will be reported on when providing values for an end point on the baseline period.
    Justification: As prespecified in the protocol, no statistical analysis was conducted for this endpoint.
    End point values
    Part 3: mRNA-1273.222 50 µg Study mRNA-1273-P301 (NCT04470427) mRNA-1273 100 μg
    Number of subjects analysed
    372
    294
    Units: percentage of participants
        number (confidence interval 95%)
    95.4 (92.8 to 97.3)
    0.0 (0.0 to 1.2)
    No statistical analyses for this end point

    Secondary: Part 3 Pseudovirus nAb SRR of post Dose 1 of mRNA-1273.222 Against Ancestral Strain Compared to Study P301

    Close Top of page
    End point title
    Part 3 Pseudovirus nAb SRR of post Dose 1 of mRNA-1273.222 Against Ancestral Strain Compared to Study P301 [26]
    End point description
    Seroresponse from pre Dose 1 Baseline at a participant level was defined as a change from below the LLOQ to equal or above 4 * LLOQ, or at least a 4-fold rise if Baseline was equal to or above the LLOQ. P301 mRNA-1273 group included young adults (≥18 and ≤25 years) who received 2 doses of mRNA-1273 in P301 Part A and who were baseline SARS-CoV-2 negative in P301 Part A. PPIS-POS: all participants who received Dose 1 of mRNA-1273.222, had both Baseline (pre Dose 1) and Day 29 antibody assessment, had no major protocol deviations that impacted key or critical data, had not received off-study COVID-19 vaccination prior to Day 29 Visit, and who were SARS-CoV-2 positive (serologic and/or virologic evidence of prior SARS-CoV-2 infection) at baseline. 'Overall number of participants analyzed' = participants evaluable for this endpoint.
    End point type
    Secondary
    End point timeframe
    Day 29 P203/Day 57 P301
    Notes
    [26] - The end point is not reporting statistics for all the arms in the baseline period. It is expected all the baseline period arms will be reported on when providing values for an end point on the baseline period.
    Justification: As prespecified in the protocol, no statistical analysis was conducted for this endpoint.
    End point values
    Part 3: mRNA-1273.222 50 µg Study mRNA-1273-P301 (NCT04470427) mRNA-1273 100 μg
    Number of subjects analysed
    370
    295
    Units: percentage of participants
        number (confidence interval 95%)
    94.9 (92.1 to 96.9)
    99.3 (97.6 to 99.9)
    No statistical analyses for this end point

    Secondary: Part 3 GM Value of Post Dose 1 (Day 29) of mRNA-1273.222 bAb Against Other Variants of Interest

    Close Top of page
    End point title
    Part 3 GM Value of Post Dose 1 (Day 29) of mRNA-1273.222 bAb Against Other Variants of Interest [27]
    End point description
    mRNA-1273.222 bAb was measured using a S-binding IgG immunoassay. Antibody values reported as below the LLOQ were replaced by 0.5 * LLOQ. Values greater than the ULOQ are replaced by the ULOQ if actual values are not available (LLOQ: 397 AU/ml, ULOQ: 2200000 AU/mL). PPIS: all participants who received Dose 1 of mRNA-1273.222 and had both Baseline (pre Dose 1) and Day 29 antibody assessment, had no major protocol deviations that impacted key or critical data; and had not received off-study COVID-19 vaccination prior to Day 29 visit.
    End point type
    Secondary
    End point timeframe
    Day 29
    Notes
    [27] - The end point is not reporting statistics for all the arms in the baseline period. It is expected all the baseline period arms will be reported on when providing values for an end point on the baseline period.
    Justification: As prespecified in the protocol, no statistical analysis was conducted for this endpoint.
    End point values
    Part 3: mRNA-1273.222 50 µg
    Number of subjects analysed
    372
    Units: AU/mL
    geometric mean (confidence interval 95%)
        BA.5 (n=372)
    282734.2 (266581.0 to 299866.1)
        AY.4 (n=372)
    557963.4 (529270.6 to 588211.6)
        B.1.1.7 (n=372)
    434879.0 (412699.2 to 458250.8)
        B.1.351 (n=372)
    431476.5 (409656.1 to 454459.1)
        B.1.1.529 (n=372)
    189826.0 (178578.0 to 201782.5)
        P.1 (n=372)
    471868.9 (446431.3 to 498756.0)
    No statistical analyses for this end point

    Secondary: Part 1C-2 GM Value of mRNA-1273 booster Against Variants of Interest at Day 29

    Close Top of page
    End point title
    Part 1C-2 GM Value of mRNA-1273 booster Against Variants of Interest at Day 29 [28]
    End point description
    End point type
    Secondary
    End point timeframe
    Day 29
    Notes
    [28] - The end point is not reporting statistics for all the arms in the baseline period. It is expected all the baseline period arms will be reported on when providing values for an end point on the baseline period.
    Justification: As prespecified in the protocol, no statistical analysis was conducted for this endpoint.
    End point values
    Part 1C-2: mRNA-1273 50 μg BD
    Number of subjects analysed
    0 [29]
    Units: AU/mL
        geometric mean (confidence interval 95%)
    ( to )
    Notes
    [29] - Data not collected due to discontinuation of enrollment.
    No statistical analyses for this end point

    Secondary: Part 1 A GM Level of SARS-CoV-2 Spike Protein-specific bAb at Days 1, 57, 209, 394

    Close Top of page
    End point title
    Part 1 A GM Level of SARS-CoV-2 Spike Protein-specific bAb at Days 1, 57, 209, 394 [30]
    End point description
    SARS-CoV-2 Spike Protein-specific binding antibody (bAb) were measured using MesoScale Discovery (MSD) electrochemiluminescence multiplex assay. Antibody values reported as below the LLOQ were replaced by 0.5*LLOQ. Values greater than the ULOQ are replaced by the ULOQ if actual values are not available (LLOQ: 69, ULOQ: 14400000). PPIS for long term analysis included all randomized participants who received planned doses of study drug per schedule, complied with immunogenicity testing schedule, and had no major protocol deviations that impacted key or critical data. 'Overall number of participants analyzed' = participants evaluable for this endpoint.
    End point type
    Secondary
    End point timeframe
    Days 1, 57, 209, 394
    Notes
    [30] - The end point is not reporting statistics for all the arms in the baseline period. It is expected all the baseline period arms will be reported on when providing values for an end point on the baseline period.
    Justification: As prespecified in the protocol, no statistical analysis was conducted for this endpoint.
    End point values
    Part 1A: mRNA-1273 100 μg
    Number of subjects analysed
    369
    Units: AU/mL
    geometric mean (confidence interval 95%)
        Day 1 (n=369)
    65.848 (60.348 to 71.850)
        Day 57 (n=366)
    346830.736 (330758.387 to 363684.079)
        Day 209 (n=366
    79624.290 (73959.321 to 85723.172)
        Day 394 (n=356)
    58647.246 (52309.921 to 65752.336)
    No statistical analyses for this end point

    Secondary: Part 1A GM Value of SARS-CoV-2-Specific nAb at Days 1, 57, 209, 394

    Close Top of page
    End point title
    Part 1A GM Value of SARS-CoV-2-Specific nAb at Days 1, 57, 209, 394 [31]
    End point description
    SARS-CoV-2-Specific nAb were measured using PsVNA assay. Antibody values reported as below the LLOQ were replaced by 0.5*LLOQ. Values greater than the ULOQ are replaced by the ULOQ if actual values are not available (LLOQ: 10, ULOQ: 281600). PPIS for long term analysis included all randomized participants who received planned doses of study drug per schedule, complied with immunogenicity testing schedule, and had no major protocol deviations that impacted key or critical data. 'Overall number of participants analyzed' = participants evaluable for this endpoint.
    End point type
    Secondary
    End point timeframe
    Days 1, 57, 209, 394
    Notes
    [31] - The end point is not reporting statistics for all the arms in the baseline period. It is expected all the baseline period arms will be reported on when providing values for an end point on the baseline period.
    Justification: As prespecified in the protocol, no statistical analysis was conducted for this endpoint.
    End point values
    Part 1A: mRNA-1273 100 μg
    Number of subjects analysed
    369
    Units: AU/mL
    geometric mean (confidence interval 95%)
        Day 1 (n=369)
    11.249 (10.712 to 11.812)
        Day 57 (n=366)
    1868.363 (1758.809 to 1984.742)
        Day 209 (n=366)
    625.363 (583.319 to 670.437)
        Day 394 (n=363)
    550.262 (489.875 to 618.093)
    No statistical analyses for this end point

    Secondary: Part 1C-1 GM Value of Post-booster Dose Serum bAb Against Variants of Interest (B.1.1.7, B.1.351, B.1.617.2, and P.1) as Measured by MSD

    Close Top of page
    End point title
    Part 1C-1 GM Value of Post-booster Dose Serum bAb Against Variants of Interest (B.1.1.7, B.1.351, B.1.617.2, and P.1) as Measured by MSD
    End point description
    Antibody values reported as below the LLOQ were replaced by 0.5*LLOQ. Values greater than the ULOQ were replaced by the ULOQ if actual values were not available. B.1.1.7 (LLOQ: 52, ULOQ: 8800000), B.1.351 (LLOQ: 111, ULOQ: 5000000), B.1.617.2 (LLOQ: 49, ULOQ: 7400000), P.1 (LLOQ: 143, ULOQ: 5800000). PPIS: all randomized participants who received planned doses of study drug per schedule, complied with immunogenicity testing schedule, and had no major protocol deviations that impacted key or critical data. 'Overall number of participants analyzed' = participants evaluable for this endpoint.
    End point type
    Secondary
    End point timeframe
    BD Day 29
    End point values
    Part 1C-1: mRNA-1273 50 µg BD
    Number of subjects analysed
    324
    Units: AU/mL
    geometric mean (confidence interval 95%)
        B.1.1.7
    581097.8 (543987.7 to 620739.5)
        B.1.351
    431569.2 (404983.2 to 459900.6)
        B.1.617.2
    456423.3 (429083.9 to 485504.8)
        P.1
    417277.2 (391682.5 to 444544.5)
    No statistical analyses for this end point

    Adverse events

    Close Top of page
    Adverse events information
    Timeframe for reporting adverse events
    Day 1 up to EOS (Day 751)
    Adverse event reporting additional description
    All-cause mortality: enrolled; AEs: participants received 1 dose of study drug. Non-serious SARs persisting beyond 7 days, leading to discontinuation, or medically attended were defined as AEs in Part 1/2 but not in Part 3. COVID-19/SARS-CoV-2 infections were AEs in Part 1/2 but were considered clinical events for efficacy in Part 3 and not AEs.
    Assessment type
    Systematic
    Dictionary used for adverse event reporting
    Dictionary name
    MedDRA
    Dictionary version
    23.0
    Reporting groups
    Reporting group title
    Part 1A: Placebo
    Reporting group description
    Participants received 2 doses of placebo by IM injection (Day 1 and Day 29).

    Reporting group title
    Part 1A: mRNA-1273 100 μg
    Reporting group description
    Participants received 2 doses of 100 μg mRNA-1273 by IM injection (Day 1 and Day 29).

    Reporting group title
    Part 1 B: mRNA-1273 100 µg
    Reporting group description
    Participants previously received 2 doses of placebo in the blinded phase and then received crossover vaccination with 100 μg of mRNA-1273.

    Reporting group title
    Part 2: mRNA-1273 50 ug BD
    Reporting group description
    Participants received open-label mRNA-1273 50 µg in Part 2 and then a single BD of 50 μg mRNA-1273 IM injection on BD Day 1 in Part 2.

    Reporting group title
    Part 3: mRNA-1273.222 50 ug Second Dose
    Reporting group description
    Participants received 1 dose of mRNA-1273.222 50 µg by IM injection (Day 1). and a second dose approximately 6 months after the first dose (Day 181).

    Reporting group title
    Part 2: mRNA-1273 50 μg
    Reporting group description
    Participants received 2 doses of 50 μg mRNA-1273 by IM injection (Day 1 and Day 29).

    Reporting group title
    Part 1C-2: mRNA-1273 50 μg BD‌
    Reporting group description
    Participants who completed primary COVID-19 vaccination series with a non-Moderna vaccine under EUA, received a single booster of 50 μg mRNA-1273 IM injection on BD Day 1.

    Reporting group title
    Part 1C-1: mRNA-1273 50 µg BD
    Reporting group description
    Participants received mRNA-1273 100 µg in blinded or cross-over phase and then a single booster of 50 μg mRNA-1273 IM injection on Booster Dose Day 1.

    Reporting group title
    Part 3: mRNA1273.222 50 µg 1 Dose
    Reporting group description
    Participants received 1 dose of mRNA-1273.222 50 µg by IM injection (Day 1).

    Serious adverse events
    Part 1A: Placebo Part 1A: mRNA-1273 100 μg Part 1 B: mRNA-1273 100 µg Part 2: mRNA-1273 50 ug BD Part 3: mRNA-1273.222 50 ug Second Dose Part 2: mRNA-1273 50 μg Part 1C-2: mRNA-1273 50 μg BD‌ Part 1C-1: mRNA-1273 50 µg BD Part 3: mRNA1273.222 50 µg 1 Dose
    Total subjects affected by serious adverse events
         subjects affected / exposed
    4 / 1240 (0.32%)
    21 / 2486 (0.84%)
    2 / 96 (2.08%)
    0 / 19 (0.00%)
    4 / 335 (1.19%)
    0 / 52 (0.00%)
    3 / 155 (1.94%)
    9 / 1408 (0.64%)
    12 / 388 (3.09%)
         number of deaths (all causes)
    0
    0
    0
    0
    1
    0
    0
    0
    0
         number of deaths resulting from adverse events
    Vascular disorders
    Hypertension
         subjects affected / exposed
    0 / 1240 (0.00%)
    0 / 2486 (0.00%)
    0 / 96 (0.00%)
    0 / 19 (0.00%)
    1 / 335 (0.30%)
    0 / 52 (0.00%)
    0 / 155 (0.00%)
    0 / 1408 (0.00%)
    1 / 388 (0.26%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 1
    0 / 0
    0 / 0
    0 / 0
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    Pregnancy, puerperium and perinatal conditions
    Abortion
         subjects affected / exposed
    0 / 1240 (0.00%)
    0 / 2486 (0.00%)
    0 / 96 (0.00%)
    0 / 19 (0.00%)
    0 / 335 (0.00%)
    0 / 52 (0.00%)
    0 / 155 (0.00%)
    0 / 1408 (0.00%)
    1 / 388 (0.26%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    Abortion spontaneous
         subjects affected / exposed
    0 / 1240 (0.00%)
    0 / 2486 (0.00%)
    0 / 96 (0.00%)
    0 / 19 (0.00%)
    2 / 335 (0.60%)
    0 / 52 (0.00%)
    0 / 155 (0.00%)
    0 / 1408 (0.00%)
    0 / 388 (0.00%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 2
    0 / 0
    0 / 0
    0 / 0
    0 / 0
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    Immune system disorders
    Anaphylactic reaction
         subjects affected / exposed
    0 / 1240 (0.00%)
    0 / 2486 (0.00%)
    0 / 96 (0.00%)
    0 / 19 (0.00%)
    0 / 335 (0.00%)
    0 / 52 (0.00%)
    1 / 155 (0.65%)
    0 / 1408 (0.00%)
    0 / 388 (0.00%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 1
    0 / 0
    0 / 0
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    Reproductive system and breast disorders
    Vaginal haematoma
         subjects affected / exposed
    0 / 1240 (0.00%)
    0 / 2486 (0.00%)
    0 / 96 (0.00%)
    0 / 19 (0.00%)
    0 / 335 (0.00%)
    0 / 52 (0.00%)
    0 / 155 (0.00%)
    1 / 1408 (0.07%)
    0 / 388 (0.00%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 1
    0 / 0
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    Psychiatric disorders
    Depression
         subjects affected / exposed
    0 / 1240 (0.00%)
    1 / 2486 (0.04%)
    0 / 96 (0.00%)
    0 / 19 (0.00%)
    0 / 335 (0.00%)
    0 / 52 (0.00%)
    0 / 155 (0.00%)
    1 / 1408 (0.07%)
    1 / 388 (0.26%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 1
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 1
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    Depression suicidal
         subjects affected / exposed
    0 / 1240 (0.00%)
    1 / 2486 (0.04%)
    0 / 96 (0.00%)
    0 / 19 (0.00%)
    0 / 335 (0.00%)
    0 / 52 (0.00%)
    0 / 155 (0.00%)
    0 / 1408 (0.00%)
    0 / 388 (0.00%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 1
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    Emotional distress
         subjects affected / exposed
    0 / 1240 (0.00%)
    0 / 2486 (0.00%)
    0 / 96 (0.00%)
    0 / 19 (0.00%)
    0 / 335 (0.00%)
    0 / 52 (0.00%)
    0 / 155 (0.00%)
    1 / 1408 (0.07%)
    0 / 388 (0.00%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 1
    0 / 0
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    Major depression
         subjects affected / exposed
    0 / 1240 (0.00%)
    2 / 2486 (0.08%)
    0 / 96 (0.00%)
    0 / 19 (0.00%)
    0 / 335 (0.00%)
    0 / 52 (0.00%)
    0 / 155 (0.00%)
    0 / 1408 (0.00%)
    0 / 388 (0.00%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 2
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    Suicidal ideation
         subjects affected / exposed
    0 / 1240 (0.00%)
    5 / 2486 (0.20%)
    1 / 96 (1.04%)
    0 / 19 (0.00%)
    0 / 335 (0.00%)
    0 / 52 (0.00%)
    0 / 155 (0.00%)
    2 / 1408 (0.14%)
    0 / 388 (0.00%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 5
    0 / 1
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 2
    0 / 0
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    Suicide attempt
         subjects affected / exposed
    1 / 1240 (0.08%)
    3 / 2486 (0.12%)
    0 / 96 (0.00%)
    0 / 19 (0.00%)
    0 / 335 (0.00%)
    0 / 52 (0.00%)
    0 / 155 (0.00%)
    1 / 1408 (0.07%)
    0 / 388 (0.00%)
         occurrences causally related to treatment / all
    0 / 1
    0 / 3
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 1
    0 / 0
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    Investigations
    Hepatic enzyme increased
         subjects affected / exposed
    0 / 1240 (0.00%)
    0 / 2486 (0.00%)
    0 / 96 (0.00%)
    0 / 19 (0.00%)
    0 / 335 (0.00%)
    0 / 52 (0.00%)
    0 / 155 (0.00%)
    1 / 1408 (0.07%)
    0 / 388 (0.00%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 1
    0 / 0
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    Injury, poisoning and procedural complications
    Clavicle fracture
         subjects affected / exposed
    0 / 1240 (0.00%)
    1 / 2486 (0.04%)
    0 / 96 (0.00%)
    0 / 19 (0.00%)
    0 / 335 (0.00%)
    0 / 52 (0.00%)
    0 / 155 (0.00%)
    0 / 1408 (0.00%)
    0 / 388 (0.00%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 1
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    Concussion
         subjects affected / exposed
    0 / 1240 (0.00%)
    1 / 2486 (0.04%)
    0 / 96 (0.00%)
    0 / 19 (0.00%)
    0 / 335 (0.00%)
    0 / 52 (0.00%)
    0 / 155 (0.00%)
    0 / 1408 (0.00%)
    0 / 388 (0.00%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 1
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    Cervical vertebral fracture
         subjects affected / exposed
    0 / 1240 (0.00%)
    0 / 2486 (0.00%)
    0 / 96 (0.00%)
    0 / 19 (0.00%)
    0 / 335 (0.00%)
    0 / 52 (0.00%)
    0 / 155 (0.00%)
    1 / 1408 (0.07%)
    0 / 388 (0.00%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 1
    0 / 0
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    Gun shot wound
         subjects affected / exposed
    0 / 1240 (0.00%)
    0 / 2486 (0.00%)
    0 / 96 (0.00%)
    0 / 19 (0.00%)
    1 / 335 (0.30%)
    0 / 52 (0.00%)
    0 / 155 (0.00%)
    0 / 1408 (0.00%)
    0 / 388 (0.00%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 1
    0 / 0
    0 / 0
    0 / 0
    0 / 0
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 1
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    Post procedural fever
         subjects affected / exposed
    0 / 1240 (0.00%)
    1 / 2486 (0.04%)
    0 / 96 (0.00%)
    0 / 19 (0.00%)
    0 / 335 (0.00%)
    0 / 52 (0.00%)
    0 / 155 (0.00%)
    0 / 1408 (0.00%)
    0 / 388 (0.00%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 1
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    Road traffic accident
         subjects affected / exposed
    0 / 1240 (0.00%)
    0 / 2486 (0.00%)
    1 / 96 (1.04%)
    0 / 19 (0.00%)
    0 / 335 (0.00%)
    0 / 52 (0.00%)
    0 / 155 (0.00%)
    0 / 1408 (0.00%)
    0 / 388 (0.00%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 0
    0 / 1
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    Facial bones fracture
         subjects affected / exposed
    0 / 1240 (0.00%)
    1 / 2486 (0.04%)
    0 / 96 (0.00%)
    0 / 19 (0.00%)
    0 / 335 (0.00%)
    0 / 52 (0.00%)
    0 / 155 (0.00%)
    0 / 1408 (0.00%)
    0 / 388 (0.00%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 1
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    Femur fracture
         subjects affected / exposed
    0 / 1240 (0.00%)
    1 / 2486 (0.04%)
    0 / 96 (0.00%)
    0 / 19 (0.00%)
    0 / 335 (0.00%)
    0 / 52 (0.00%)
    0 / 155 (0.00%)
    0 / 1408 (0.00%)
    0 / 388 (0.00%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 1
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    Sunburn
         subjects affected / exposed
    0 / 1240 (0.00%)
    1 / 2486 (0.04%)
    0 / 96 (0.00%)
    0 / 19 (0.00%)
    0 / 335 (0.00%)
    0 / 52 (0.00%)
    0 / 155 (0.00%)
    0 / 1408 (0.00%)
    0 / 388 (0.00%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 1
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    Splenic injury
         subjects affected / exposed
    0 / 1240 (0.00%)
    1 / 2486 (0.04%)
    0 / 96 (0.00%)
    0 / 19 (0.00%)
    0 / 335 (0.00%)
    0 / 52 (0.00%)
    0 / 155 (0.00%)
    0 / 1408 (0.00%)
    0 / 388 (0.00%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 1
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    Vulvovaginal injury
         subjects affected / exposed
    0 / 1240 (0.00%)
    0 / 2486 (0.00%)
    0 / 96 (0.00%)
    0 / 19 (0.00%)
    0 / 335 (0.00%)
    0 / 52 (0.00%)
    0 / 155 (0.00%)
    1 / 1408 (0.07%)
    0 / 388 (0.00%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 1
    0 / 0
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    Congenital, familial and genetic disorders
    Pectus excavatum
         subjects affected / exposed
    0 / 1240 (0.00%)
    1 / 2486 (0.04%)
    0 / 96 (0.00%)
    0 / 19 (0.00%)
    0 / 335 (0.00%)
    0 / 52 (0.00%)
    0 / 155 (0.00%)
    0 / 1408 (0.00%)
    0 / 388 (0.00%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 1
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    Syringomyelia
         subjects affected / exposed
    0 / 1240 (0.00%)
    1 / 2486 (0.04%)
    0 / 96 (0.00%)
    0 / 19 (0.00%)
    0 / 335 (0.00%)
    0 / 52 (0.00%)
    0 / 155 (0.00%)
    0 / 1408 (0.00%)
    0 / 388 (0.00%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 1
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    Arnold-Chiari malformation
         subjects affected / exposed
    0 / 1240 (0.00%)
    1 / 2486 (0.04%)
    0 / 96 (0.00%)
    0 / 19 (0.00%)
    0 / 335 (0.00%)
    0 / 52 (0.00%)
    0 / 155 (0.00%)
    0 / 1408 (0.00%)
    0 / 388 (0.00%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 1
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    Cardiac disorders
    Cardiogenic shock
    Additional description: Sponsor assessment was Not related based on medical history, results of the heart biopsy, including findings of long-standing pre-existing heart failure and long time to onset (256 days).
         subjects affected / exposed
    0 / 1240 (0.00%)
    0 / 2486 (0.00%)
    0 / 96 (0.00%)
    0 / 19 (0.00%)
    0 / 335 (0.00%)
    0 / 52 (0.00%)
    0 / 155 (0.00%)
    0 / 1408 (0.00%)
    1 / 388 (0.26%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    1 / 1
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    Nervous system disorders
    Status migrainosus
         subjects affected / exposed
    0 / 1240 (0.00%)
    0 / 2486 (0.00%)
    0 / 96 (0.00%)
    0 / 19 (0.00%)
    0 / 335 (0.00%)
    0 / 52 (0.00%)
    0 / 155 (0.00%)
    1 / 1408 (0.07%)
    0 / 388 (0.00%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 1
    0 / 0
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    Seizure
         subjects affected / exposed
    0 / 1240 (0.00%)
    0 / 2486 (0.00%)
    0 / 96 (0.00%)
    0 / 19 (0.00%)
    0 / 335 (0.00%)
    0 / 52 (0.00%)
    1 / 155 (0.65%)
    0 / 1408 (0.00%)
    0 / 388 (0.00%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 1
    0 / 0
    0 / 0
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    Idiopathic generalised epilepsy
         subjects affected / exposed
    0 / 1240 (0.00%)
    1 / 2486 (0.04%)
    0 / 96 (0.00%)
    0 / 19 (0.00%)
    0 / 335 (0.00%)
    0 / 52 (0.00%)
    0 / 155 (0.00%)
    0 / 1408 (0.00%)
    0 / 388 (0.00%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 1
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    Epilepsy
         subjects affected / exposed
    1 / 1240 (0.08%)
    0 / 2486 (0.00%)
    0 / 96 (0.00%)
    0 / 19 (0.00%)
    0 / 335 (0.00%)
    0 / 52 (0.00%)
    0 / 155 (0.00%)
    0 / 1408 (0.00%)
    0 / 388 (0.00%)
         occurrences causally related to treatment / all
    0 / 1
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    Blood and lymphatic system disorders
    Normochromic normocytic anaemia
         subjects affected / exposed
    0 / 1240 (0.00%)
    0 / 2486 (0.00%)
    0 / 96 (0.00%)
    0 / 19 (0.00%)
    1 / 335 (0.30%)
    0 / 52 (0.00%)
    0 / 155 (0.00%)
    0 / 1408 (0.00%)
    0 / 388 (0.00%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 1
    0 / 0
    0 / 0
    0 / 0
    0 / 0
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    Hypercoagulation
    Additional description: Sponsor assessment was Not related based on medical history, results of the heart biopsy, including findings of long-standing pre-existing heart failure and long time to onset (256 days).
         subjects affected / exposed
    0 / 1240 (0.00%)
    0 / 2486 (0.00%)
    0 / 96 (0.00%)
    0 / 19 (0.00%)
    0 / 335 (0.00%)
    0 / 52 (0.00%)
    0 / 155 (0.00%)
    0 / 1408 (0.00%)
    1 / 388 (0.26%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    1 / 1
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    Gastrointestinal disorders
    Vomiting
         subjects affected / exposed
    0 / 1240 (0.00%)
    1 / 2486 (0.04%)
    0 / 96 (0.00%)
    0 / 19 (0.00%)
    0 / 335 (0.00%)
    0 / 52 (0.00%)
    0 / 155 (0.00%)
    0 / 1408 (0.00%)
    0 / 388 (0.00%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 1
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    Diarrhoea
         subjects affected / exposed
    0 / 1240 (0.00%)
    1 / 2486 (0.04%)
    0 / 96 (0.00%)
    0 / 19 (0.00%)
    0 / 335 (0.00%)
    0 / 52 (0.00%)
    0 / 155 (0.00%)
    0 / 1408 (0.00%)
    0 / 388 (0.00%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 1
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    Hepatobiliary disorders
    Hyperbilirubinaemia neonatal
         subjects affected / exposed
    0 / 1240 (0.00%)
    0 / 2486 (0.00%)
    0 / 96 (0.00%)
    0 / 19 (0.00%)
    0 / 335 (0.00%)
    0 / 52 (0.00%)
    0 / 155 (0.00%)
    0 / 1408 (0.00%)
    1 / 388 (0.26%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    Drug-induced liver injury
         subjects affected / exposed
    0 / 1240 (0.00%)
    1 / 2486 (0.04%)
    0 / 96 (0.00%)
    0 / 19 (0.00%)
    0 / 335 (0.00%)
    0 / 52 (0.00%)
    0 / 155 (0.00%)
    0 / 1408 (0.00%)
    0 / 388 (0.00%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 1
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    Renal and urinary disorders
    Nephrolithiasis
         subjects affected / exposed
    0 / 1240 (0.00%)
    0 / 2486 (0.00%)
    0 / 96 (0.00%)
    0 / 19 (0.00%)
    0 / 335 (0.00%)
    0 / 52 (0.00%)
    1 / 155 (0.65%)
    0 / 1408 (0.00%)
    0 / 388 (0.00%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 1
    0 / 0
    0 / 0
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    Nephrotic syndrome
         subjects affected / exposed
    0 / 1240 (0.00%)
    0 / 2486 (0.00%)
    0 / 96 (0.00%)
    0 / 19 (0.00%)
    1 / 335 (0.30%)
    0 / 52 (0.00%)
    0 / 155 (0.00%)
    0 / 1408 (0.00%)
    0 / 388 (0.00%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 1
    0 / 0
    0 / 0
    0 / 0
    0 / 0
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    Chronic kidney disease
         subjects affected / exposed
    0 / 1240 (0.00%)
    0 / 2486 (0.00%)
    0 / 96 (0.00%)
    0 / 19 (0.00%)
    1 / 335 (0.30%)
    0 / 52 (0.00%)
    0 / 155 (0.00%)
    0 / 1408 (0.00%)
    0 / 388 (0.00%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 1
    0 / 0
    0 / 0
    0 / 0
    0 / 0
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    Obstructive nephropathy
         subjects affected / exposed
    1 / 1240 (0.08%)
    0 / 2486 (0.00%)
    0 / 96 (0.00%)
    0 / 19 (0.00%)
    0 / 335 (0.00%)
    0 / 52 (0.00%)
    0 / 155 (0.00%)
    0 / 1408 (0.00%)
    0 / 388 (0.00%)
         occurrences causally related to treatment / all
    0 / 1
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    Infections and infestations
    Amoebic dysentery
         subjects affected / exposed
    0 / 1240 (0.00%)
    0 / 2486 (0.00%)
    0 / 96 (0.00%)
    0 / 19 (0.00%)
    0 / 335 (0.00%)
    0 / 52 (0.00%)
    0 / 155 (0.00%)
    0 / 1408 (0.00%)
    1 / 388 (0.26%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    Murine typhus
         subjects affected / exposed
    0 / 1240 (0.00%)
    1 / 2486 (0.04%)
    0 / 96 (0.00%)
    0 / 19 (0.00%)
    0 / 335 (0.00%)
    0 / 52 (0.00%)
    0 / 155 (0.00%)
    0 / 1408 (0.00%)
    0 / 388 (0.00%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 1
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    Dengue fever
         subjects affected / exposed
    0 / 1240 (0.00%)
    0 / 2486 (0.00%)
    0 / 96 (0.00%)
    0 / 19 (0.00%)
    0 / 335 (0.00%)
    0 / 52 (0.00%)
    0 / 155 (0.00%)
    0 / 1408 (0.00%)
    5 / 388 (1.29%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 5
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    Cellulitis
         subjects affected / exposed
    0 / 1240 (0.00%)
    0 / 2486 (0.00%)
    0 / 96 (0.00%)
    0 / 19 (0.00%)
    0 / 335 (0.00%)
    0 / 52 (0.00%)
    0 / 155 (0.00%)
    0 / 1408 (0.00%)
    1 / 388 (0.26%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    Pneumonia
         subjects affected / exposed
    0 / 1240 (0.00%)
    0 / 2486 (0.00%)
    0 / 96 (0.00%)
    0 / 19 (0.00%)
    0 / 335 (0.00%)
    0 / 52 (0.00%)
    0 / 155 (0.00%)
    0 / 1408 (0.00%)
    1 / 388 (0.26%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    Appendicitis
         subjects affected / exposed
    1 / 1240 (0.08%)
    2 / 2486 (0.08%)
    0 / 96 (0.00%)
    0 / 19 (0.00%)
    0 / 335 (0.00%)
    0 / 52 (0.00%)
    0 / 155 (0.00%)
    1 / 1408 (0.07%)
    0 / 388 (0.00%)
         occurrences causally related to treatment / all
    0 / 1
    0 / 2
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 1
    0 / 0
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    Peritonitis
         subjects affected / exposed
    0 / 1240 (0.00%)
    0 / 2486 (0.00%)
    0 / 96 (0.00%)
    0 / 19 (0.00%)
    1 / 335 (0.30%)
    0 / 52 (0.00%)
    0 / 155 (0.00%)
    0 / 1408 (0.00%)
    0 / 388 (0.00%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 1
    0 / 0
    0 / 0
    0 / 0
    0 / 0
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    Metabolism and nutrition disorders
    Decreased appetite
         subjects affected / exposed
    0 / 1240 (0.00%)
    0 / 2486 (0.00%)
    0 / 96 (0.00%)
    0 / 19 (0.00%)
    0 / 335 (0.00%)
    0 / 52 (0.00%)
    0 / 155 (0.00%)
    1 / 1408 (0.07%)
    0 / 388 (0.00%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 1
    0 / 0
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    Dehydration
         subjects affected / exposed
    0 / 1240 (0.00%)
    0 / 2486 (0.00%)
    0 / 96 (0.00%)
    0 / 19 (0.00%)
    0 / 335 (0.00%)
    0 / 52 (0.00%)
    0 / 155 (0.00%)
    1 / 1408 (0.07%)
    1 / 388 (0.26%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 1
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    Metabolic acidosis
         subjects affected / exposed
    0 / 1240 (0.00%)
    0 / 2486 (0.00%)
    0 / 96 (0.00%)
    0 / 19 (0.00%)
    1 / 335 (0.30%)
    0 / 52 (0.00%)
    0 / 155 (0.00%)
    0 / 1408 (0.00%)
    0 / 388 (0.00%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 1
    0 / 0
    0 / 0
    0 / 0
    0 / 0
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    Hyperkalaemia
         subjects affected / exposed
    0 / 1240 (0.00%)
    0 / 2486 (0.00%)
    0 / 96 (0.00%)
    0 / 19 (0.00%)
    1 / 335 (0.30%)
    0 / 52 (0.00%)
    0 / 155 (0.00%)
    0 / 1408 (0.00%)
    0 / 388 (0.00%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 1
    0 / 0
    0 / 0
    0 / 0
    0 / 0
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    Hypocalcaemia
         subjects affected / exposed
    0 / 1240 (0.00%)
    0 / 2486 (0.00%)
    0 / 96 (0.00%)
    0 / 19 (0.00%)
    1 / 335 (0.30%)
    0 / 52 (0.00%)
    0 / 155 (0.00%)
    0 / 1408 (0.00%)
    0 / 388 (0.00%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 1
    0 / 0
    0 / 0
    0 / 0
    0 / 0
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    0 / 0
    Frequency threshold for reporting non-serious adverse events: 5%
    Non-serious adverse events
    Part 1A: Placebo Part 1A: mRNA-1273 100 μg Part 1 B: mRNA-1273 100 µg Part 2: mRNA-1273 50 ug BD Part 3: mRNA-1273.222 50 ug Second Dose Part 2: mRNA-1273 50 μg Part 1C-2: mRNA-1273 50 μg BD‌ Part 1C-1: mRNA-1273 50 µg BD Part 3: mRNA1273.222 50 µg 1 Dose
    Total subjects affected by non serious adverse events
         subjects affected / exposed
    155 / 1240 (12.50%)
    943 / 2486 (37.93%)
    22 / 96 (22.92%)
    7 / 19 (36.84%)
    51 / 335 (15.22%)
    12 / 52 (23.08%)
    28 / 155 (18.06%)
    429 / 1408 (30.47%)
    77 / 388 (19.85%)
    Nervous system disorders
    Headache
         subjects affected / exposed
    51 / 1240 (4.11%)
    117 / 2486 (4.71%)
    1 / 96 (1.04%)
    0 / 19 (0.00%)
    5 / 335 (1.49%)
    1 / 52 (1.92%)
    1 / 155 (0.65%)
    28 / 1408 (1.99%)
    20 / 388 (5.15%)
         occurrences all number
    57
    129
    1
    0
    5
    1
    1
    29
    27
    General disorders and administration site conditions
    Injection site lymphadenopathy
         subjects affected / exposed
    6 / 1240 (0.48%)
    137 / 2486 (5.51%)
    0 / 96 (0.00%)
    0 / 19 (0.00%)
    0 / 335 (0.00%)
    1 / 52 (1.92%)
    0 / 155 (0.00%)
    5 / 1408 (0.36%)
    0 / 388 (0.00%)
         occurrences all number
    6
    146
    0
    0
    0
    1
    0
    5
    0
    Gastrointestinal disorders
    Abdominal pain
         subjects affected / exposed
    3 / 1240 (0.24%)
    8 / 2486 (0.32%)
    0 / 96 (0.00%)
    1 / 19 (5.26%)
    1 / 335 (0.30%)
    0 / 52 (0.00%)
    0 / 155 (0.00%)
    6 / 1408 (0.43%)
    1 / 388 (0.26%)
         occurrences all number
    3
    9
    0
    1
    1
    0
    0
    6
    1
    Skin and subcutaneous tissue disorders
    Mechanical urticaria
         subjects affected / exposed
    0 / 1240 (0.00%)
    0 / 2486 (0.00%)
    0 / 96 (0.00%)
    1 / 19 (5.26%)
    0 / 335 (0.00%)
    0 / 52 (0.00%)
    0 / 155 (0.00%)
    0 / 1408 (0.00%)
    0 / 388 (0.00%)
         occurrences all number
    0
    0
    0
    1
    0
    0
    0
    0
    0
    Parapsoriasis
         subjects affected / exposed
    0 / 1240 (0.00%)
    0 / 2486 (0.00%)
    0 / 96 (0.00%)
    1 / 19 (5.26%)
    0 / 335 (0.00%)
    0 / 52 (0.00%)
    0 / 155 (0.00%)
    0 / 1408 (0.00%)
    0 / 388 (0.00%)
         occurrences all number
    0
    0
    0
    1
    0
    0
    0
    0
    0
    Psychiatric disorders
    Anxiety
         subjects affected / exposed
    3 / 1240 (0.24%)
    58 / 2486 (2.33%)
    1 / 96 (1.04%)
    1 / 19 (5.26%)
    1 / 335 (0.30%)
    0 / 52 (0.00%)
    1 / 155 (0.65%)
    26 / 1408 (1.85%)
    0 / 388 (0.00%)
         occurrences all number
    3
    60
    1
    1
    1
    0
    1
    27
    0
    Attention deficit hyperactivity disorder
         subjects affected / exposed
    6 / 1240 (0.48%)
    41 / 2486 (1.65%)
    0 / 96 (0.00%)
    0 / 19 (0.00%)
    0 / 335 (0.00%)
    3 / 52 (5.77%)
    2 / 155 (1.29%)
    14 / 1408 (0.99%)
    0 / 388 (0.00%)
         occurrences all number
    6
    41
    0
    0
    0
    3
    2
    14
    0
    Infections and infestations
    Respiratory tract infection
         subjects affected / exposed
    4 / 1240 (0.32%)
    11 / 2486 (0.44%)
    0 / 96 (0.00%)
    0 / 19 (0.00%)
    22 / 335 (6.57%)
    0 / 52 (0.00%)
    1 / 155 (0.65%)
    2 / 1408 (0.14%)
    26 / 388 (6.70%)
         occurrences all number
    4
    12
    0
    0
    30
    0
    1
    2
    34
    Parainfluenzae virus infection
         subjects affected / exposed
    0 / 1240 (0.00%)
    3 / 2486 (0.12%)
    1 / 96 (1.04%)
    1 / 19 (5.26%)
    0 / 335 (0.00%)
    0 / 52 (0.00%)
    1 / 155 (0.65%)
    2 / 1408 (0.14%)
    1 / 388 (0.26%)
         occurrences all number
    0
    3
    1
    1
    0
    0
    1
    2
    1
    COVID-19
         subjects affected / exposed
    34 / 1240 (2.74%)
    382 / 2486 (15.37%)
    11 / 96 (11.46%)
    3 / 19 (15.79%)
    0 / 335 (0.00%)
    3 / 52 (5.77%)
    10 / 155 (6.45%)
    257 / 1408 (18.25%)
    0 / 388 (0.00%)
         occurrences all number
    35
    383
    11
    3
    0
    3
    10
    267
    0
    Influenza
         subjects affected / exposed
    0 / 1240 (0.00%)
    19 / 2486 (0.76%)
    1 / 96 (1.04%)
    2 / 19 (10.53%)
    0 / 335 (0.00%)
    1 / 52 (1.92%)
    7 / 155 (4.52%)
    30 / 1408 (2.13%)
    5 / 388 (1.29%)
         occurrences all number
    0
    20
    1
    2
    0
    1
    8
    30
    6
    Nasopharyngitis
         subjects affected / exposed
    6 / 1240 (0.48%)
    60 / 2486 (2.41%)
    4 / 96 (4.17%)
    0 / 19 (0.00%)
    23 / 335 (6.87%)
    0 / 52 (0.00%)
    0 / 155 (0.00%)
    16 / 1408 (1.14%)
    30 / 388 (7.73%)
         occurrences all number
    6
    64
    4
    0
    26
    0
    0
    17
    34
    Asymptomatic COVID-19
         subjects affected / exposed
    25 / 1240 (2.02%)
    81 / 2486 (3.26%)
    6 / 96 (6.25%)
    0 / 19 (0.00%)
    0 / 335 (0.00%)
    2 / 52 (3.85%)
    2 / 155 (1.29%)
    39 / 1408 (2.77%)
    0 / 388 (0.00%)
         occurrences all number
    25
    82
    6
    0
    0
    2
    2
    39
    0
    Tooth abscess
         subjects affected / exposed
    0 / 1240 (0.00%)
    2 / 2486 (0.08%)
    0 / 96 (0.00%)
    1 / 19 (5.26%)
    1 / 335 (0.30%)
    0 / 52 (0.00%)
    0 / 155 (0.00%)
    1 / 1408 (0.07%)
    0 / 388 (0.00%)
         occurrences all number
    0
    2
    0
    1
    1
    0
    0
    1
    0
    Upper respiratory tract infection
         subjects affected / exposed
    28 / 1240 (2.26%)
    257 / 2486 (10.34%)
    3 / 96 (3.13%)
    1 / 19 (5.26%)
    0 / 335 (0.00%)
    2 / 52 (3.85%)
    6 / 155 (3.87%)
    81 / 1408 (5.75%)
    4 / 388 (1.03%)
         occurrences all number
    32
    293
    3
    1
    0
    2
    8
    101
    4

    More information

    Close Top of page

    Substantial protocol amendments (globally)

    Were there any global substantial amendments to the protocol? Yes
    Date
    Amendment
    23 Mar 2021
    - Addition of the crossover design - Study design was updated to describe the updated crossover design of the study, including Part A (the Blinded Phase) and Part B (the Open-label Observational Phase).
    27 Jul 2021
    - Added CDC case definitions for myocarditis and pericarditis. - Added assessment of risk of myocarditis and pericarditis.
    04 Nov 2021
    - Added Part C to the study. - Updated long-term analysis and Booster Phase analysis. - Addition of booster interim analyses. - Added nasal swab for samples for SARS-CoV-2. - Clarified that only Part A and Part C will have primary immunogenicity analyses.
    25 Jan 2022
    - Added Part 1C-2 and Part 2.
    11 Oct 2022
    - Modifications to primary objectives and endpoints, secondary endpoints, statistical hypothesis, power and sample size, analysis, and procedures in Part 2 of the study. - Clarified that immunogenicity hypothesis testing will not be performed for Part 2. - Discontinuation of enrollment in Part 1C-2 and Part 2 of the study. - Clarified that Convalescent Visits are applicable to Part 1A and 1B only. - Removed BD from Part 2 and convalescent visits from Part 1C-1, Part 1C-2, and Part 2 of the study. - Added an open-label Part 3 of the study. - Updated exclusion criteria. - Updated study assessments and procedures.
    22 Jun 2023
    -Modifications to primary and (key) secondary immunogenicity objectives and endpoints, statistical hypothesis, power and sample size, and analysis in Part 3 of the study. - Updated inclusion/exclusion criteria - Clarifying the definition of the SARS-CoV-2 status at baseline.
    19 Oct 2023
    - Updated Part 3 study design and objective to single dosing. - Updated to single dosing in Part 3. - Reduced safety follow-up duration for Part 3 participants who receive Dose 2. - Updated timepoints for collection of blood samples and nasopharyngeal or nasal swab samples. -Clarification of the end-of-study definition. - Clarification added on the time period for recording all concomitant medications and nonstudy vaccinations in the electronic case report form. - Updated safety assessments related to single dosing in Part 3. -Updated PP Immunogenicity Subset for Part 3. - Addition of schedule of assessments for Part 3 participants who receive only 1 dose. - Addition of schedule of assessments for Part 2 participants who receive the booster dose.

    Interruptions (globally)

    Were there any global interruptions to the trial? No

    Limitations and caveats

    Limitations of the trial such as small numbers of subjects analysed or technical problems leading to unreliable data.
    Part 1C-2 enrollment discontinued before planned number of participants. Part 2 discontinued early due to availability of updated variant vaccine (mRNA-1273.222); no hypothesis testing done for primary endpoint/other endpoints not assessed.

    Online references

    http://www.ncbi.nlm.nih.gov/pubmed/34379915
    http://www.ncbi.nlm.nih.gov/pubmed/39091673
    http://www.ncbi.nlm.nih.gov/pubmed/39332418
    For support, Contact us.
    The status and protocol content of GB trials is no longer updated since 1 January 2021. For the UK, as of 31 January 2021, EU Law applies only to the territory of Northern Ireland (NI) to the extent foreseen in the Protocol on Ireland/NI. Legal notice
    As of 31 January 2023, all EU/EEA initial clinical trial applications must be submitted through CTIS . Updated EudraCT trials information and information on PIP/Art 46 trials conducted exclusively in third countries continues to be submitted through EudraCT and published on this website.

    European Medicines Agency © 1995-Mon May 05 11:02:53 CEST 2025 | Domenico Scarlattilaan 6, 1083 HS Amsterdam, The Netherlands
    EMA HMA