Clinical Trial Results:
A Phase 3, Randomized, Double-blinded, Placebo-controlled Trial to Evaluate the Efficacy and Safety of a Respiratory Syncytial Virus (RSV) Prefusion F Subunit Vaccine in Infants Born to Women Vaccinated During Pregnancy
Summary
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EudraCT number |
2019-002943-85 |
Trial protocol |
DK FI NL |
Global end of trial date |
27 Oct 2023
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Results information
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Results version number |
v1(current) |
This version publication date |
10 May 2024
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First version publication date |
10 May 2024
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Other versions |
Trial Information
Subject Disposition
Baseline Characteristics
End Points
Adverse Events
More Information
Subject Disposition
Baseline Characteristics
End Points
Adverse Events
More Information
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Trial identification
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Sponsor protocol code |
C3671008
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Additional study identifiers
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ISRCTN number |
- | ||
US NCT number |
NCT04424316 | ||
WHO universal trial number (UTN) |
- | ||
Sponsors
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Sponsor organisation name |
Pfizer Inc.
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Sponsor organisation address |
235E42nd Street, New York, United States, NY 10017
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Public contact |
PfizerClinicalTrials.gov Call Center, Pfizer Inc., 001 8007181021, ClinicalTrials.gov_Inquiries@pfizer.com
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Scientific contact |
PfizerClinicalTrials.gov Call Center, Pfizer Inc., 001 8007181021, ClinicalTrials.gov_Inquiries@pfizer.com
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Paediatric regulatory details
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Is trial part of an agreed paediatric investigation plan (PIP) |
No
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Does article 45 of REGULATION (EC) No 1901/2006 apply to this trial? |
No
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Does article 46 of REGULATION (EC) No 1901/2006 apply to this trial? |
Yes
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Results analysis stage
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Analysis stage |
Final
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Date of interim/final analysis |
10 Nov 2023
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Is this the analysis of the primary completion data? |
No
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Global end of trial reached? |
Yes
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Global end of trial date |
27 Oct 2023
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Was the trial ended prematurely? |
No
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General information about the trial
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Main objective of the trial |
For infant participants: the primary efficacy objective of this study was to evaluate the efficacy of respiratory syncytial virus stabilized prefusion F subunit vaccine (RSVpreF) in reducing the incidence of medically attended lower respiratory tract illness (MA-LRTI) and severe MA-LRTI due to RSV. The primary safety objective was to describe the safety of RSVpreF. For maternal participants: the primary objective was to describe the safety and tolerability of RSVpreF.
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Protection of trial subjects |
The study was in compliance with the ethical principles derived from the Declaration of Helsinki and in compliance with all International Council for Harmonization (ICH) Good Clinical Practice (GCP) Guidelines. All the local regulatory requirements pertinent to safety of trials participants were followed.
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Background therapy |
- | ||
Evidence for comparator |
- | ||
Actual start date of recruitment |
17 Jun 2020
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Long term follow-up planned |
Yes
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Long term follow-up rationale |
Safety | ||
Long term follow-up duration |
2 Years | ||
Independent data monitoring committee (IDMC) involvement? |
Yes
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Population of trial subjects
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Number of subjects enrolled per country |
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Country: Number of subjects enrolled |
Argentina: 1860
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Country: Number of subjects enrolled |
Australia: 48
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Country: Number of subjects enrolled |
Brazil: 145
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Country: Number of subjects enrolled |
Canada: 110
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Country: Number of subjects enrolled |
Chile: 342
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Country: Number of subjects enrolled |
Denmark: 123
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Country: Number of subjects enrolled |
Finland: 296
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Country: Number of subjects enrolled |
Gambia: 389
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Country: Number of subjects enrolled |
Japan: 926
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Country: Number of subjects enrolled |
Korea, Republic of: 24
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Country: Number of subjects enrolled |
Mexico: 149
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Country: Number of subjects enrolled |
Netherlands: 384
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Country: Number of subjects enrolled |
New Zealand: 197
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Country: Number of subjects enrolled |
Philippines: 156
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Country: Number of subjects enrolled |
South Africa: 1900
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Country: Number of subjects enrolled |
Spain: 484
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Country: Number of subjects enrolled |
Taiwan: 520
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Country: Number of subjects enrolled |
United States: 6637
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Worldwide total number of subjects |
14690
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EEA total number of subjects |
1287
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Number of subjects enrolled per age group |
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In utero |
0
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Preterm newborn - gestational age < 37 wk |
379
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Newborns (0-27 days) |
6926
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Infants and toddlers (28 days-23 months) |
0
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Children (2-11 years) |
0
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Adolescents (12-17 years) |
18
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Adults (18-64 years) |
7367
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From 65 to 84 years |
0
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85 years and over |
0
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Recruitment
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Recruitment details |
- | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Pre-assignment
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Screening details |
A total of 14690 participants were enrolled at multiple sites (maternal - 7385 and infant - 7305 participants). | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Period 1
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Period 1 title |
Overall Study (overall period)
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Is this the baseline period? |
Yes | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Allocation method |
Randomised - controlled
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Blinding used |
Double blind | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Roles blinded |
Investigator, Monitor, Subject | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Arms
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Are arms mutually exclusive |
Yes
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Arm title
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Maternal Participants: RSVpreF | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Arm description |
Study-eligible pregnant women (maternal participants) were randomized to receive a single dose of 120 micrograms (mcg) RSVpreF, intramuscularly (IM) on Day 1 (day of vaccination). Participants were followed up to 6 months after delivery. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Arm type |
Experimental | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Investigational medicinal product name |
RSVpreF
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Investigational medicinal product code |
PF-06928316
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Other name |
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Pharmaceutical forms |
Injection
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Routes of administration |
Intramuscular use
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Dosage and administration details |
Study-eligible pregnant women (maternal participants) upon randomization received a single dose of 120 mcg RSVpreF, intramuscularly in the deltoid muscle of the non-dominant arm on Day 1 (day of vaccination).
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Arm title
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Maternal Participants: Placebo | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Arm description |
Maternal participants were randomized to receive placebo matching to RSVpreF as a single dose on Day 1 (day of vaccination). Participants were followed up to 6 months after delivery. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Arm type |
Placebo | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Investigational medicinal product name |
Placebo
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Investigational medicinal product code |
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Other name |
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Pharmaceutical forms |
Injection
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Routes of administration |
Intramuscular use
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Dosage and administration details |
Study-eligible pregnant women (maternal participants) upon randomization received a single dose of placebo (matched to RSVpreF but no active vaccine), intramuscularly in the deltoid muscle of the non-dominant arm on Day 1 (day of vaccination).
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Arm title
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Infant Participants: RSVpreF | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Arm description |
Infant participants born to maternal participants vaccinated with a single dose of 120 mcg RSVpreF were included. Infant participants were all followed up for 12 months after birth, and for infants born to maternal participants during the first year of the study, they were followed up for 24 months after birth. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Arm type |
No intervention | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Investigational medicinal product name |
No investigational medicinal product assigned in this arm
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Arm title
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Infant Participants: Placebo | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Arm description |
Infant participants born to maternal participants who received placebo (matching RSVpreF without active vaccine) were included. Infant participants were all followed up for 12 months after birth, and for infants born to maternal participants during the first year of the study, they were followed up for 24 months after birth. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Arm type |
No intervention | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Investigational medicinal product name |
No investigational medicinal product assigned in this arm
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Baseline characteristics reporting groups
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Reporting group title |
Maternal Participants: RSVpreF
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Reporting group description |
Study-eligible pregnant women (maternal participants) were randomized to receive a single dose of 120 micrograms (mcg) RSVpreF, intramuscularly (IM) on Day 1 (day of vaccination). Participants were followed up to 6 months after delivery. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Reporting group title |
Maternal Participants: Placebo
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Reporting group description |
Maternal participants were randomized to receive placebo matching to RSVpreF as a single dose on Day 1 (day of vaccination). Participants were followed up to 6 months after delivery. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Reporting group title |
Infant Participants: RSVpreF
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Reporting group description |
Infant participants born to maternal participants vaccinated with a single dose of 120 mcg RSVpreF were included. Infant participants were all followed up for 12 months after birth, and for infants born to maternal participants during the first year of the study, they were followed up for 24 months after birth. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Reporting group title |
Infant Participants: Placebo
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Reporting group description |
Infant participants born to maternal participants who received placebo (matching RSVpreF without active vaccine) were included. Infant participants were all followed up for 12 months after birth, and for infants born to maternal participants during the first year of the study, they were followed up for 24 months after birth. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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End points reporting groups
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Reporting group title |
Maternal Participants: RSVpreF
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Reporting group description |
Study-eligible pregnant women (maternal participants) were randomized to receive a single dose of 120 micrograms (mcg) RSVpreF, intramuscularly (IM) on Day 1 (day of vaccination). Participants were followed up to 6 months after delivery. | ||
Reporting group title |
Maternal Participants: Placebo
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Reporting group description |
Maternal participants were randomized to receive placebo matching to RSVpreF as a single dose on Day 1 (day of vaccination). Participants were followed up to 6 months after delivery. | ||
Reporting group title |
Infant Participants: RSVpreF
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Reporting group description |
Infant participants born to maternal participants vaccinated with a single dose of 120 mcg RSVpreF were included. Infant participants were all followed up for 12 months after birth, and for infants born to maternal participants during the first year of the study, they were followed up for 24 months after birth. | ||
Reporting group title |
Infant Participants: Placebo
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Reporting group description |
Infant participants born to maternal participants who received placebo (matching RSVpreF without active vaccine) were included. Infant participants were all followed up for 12 months after birth, and for infants born to maternal participants during the first year of the study, they were followed up for 24 months after birth. |
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End point title |
Percentage of MA-LRTI Cases due to RSV in Infant Participants Occurring Within 90 Days After Birth (Efficacy) [1] | ||||||||||||
End point description |
Results are presented as confirmed by endpoint adjudication committee. MA-LRTI case: Infant with an MA-RTI visit with age related fast breathing (respiratory rate [RR] more than or equal to [=>]60 beats per minute [bpm] for less than [<]2 months of age [<60 days of age], =>50 bpm for =>2 months to <12 months of age, or =>40 bpm for =>12 months to 24 months of age) or oxygen saturation (SpO2) <95% or chest wall indrawing. The causative pathogen was to be determined but may meet endpoint definition if RSV-positivity was confirmed per study requirements. Evaluable efficacy - infant population= all infant participants who were born to maternal participants who did not have major protocol deviations prior to the delivery and who received the investigational product to which they were randomized at least 14 days prior to delivery, were eligible, had no major protocol deviations. “Number of Participants Analyzed”= number of participants included in evaluable efficacy - infant population.
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End point type |
Primary
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End point timeframe |
Within 90 Days after birth
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Notes [1] - 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: This endpoint was analysed only for infant participants. |
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Statistical analysis title |
RSVpreF versus placebo | ||||||||||||
Statistical analysis description |
Vaccine efficacy was calculated as 1-(P/[1-P]), where P is the number of cases in the RSVpreF group divided by the total number of cases. Vaccine efficacy was presented in percentage.
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Comparison groups |
Infant Participants: RSVpreF v Infant Participants: Placebo
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Number of subjects included in analysis |
7148
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Analysis specification |
Pre-specified
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Analysis type |
superiority | ||||||||||||
Method |
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Parameter type |
Vaccine Efficacy | ||||||||||||
Point estimate |
57.6
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Confidence interval |
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level |
95% | ||||||||||||
sides |
2-sided
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lower limit |
31.3 | ||||||||||||
upper limit |
74.6 |
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End point title |
Percentage of MA-LRTI Cases due to RSV in Infant Participants Occurring Within 120 Days After Birth (Efficacy) [2] | ||||||||||||
End point description |
Results are presented as confirmed by endpoint adjudication committee. MA-LRTI case: Infant with an MA-RTI visit with age related fast breathing (RR =>60 bpm for <2 months of age [<60 days of age], =>50 bpm for =>2 months to <12 months of age, or =>40 bpm for =>12 months to 24 months of age) or SpO2 <95% or chest wall indrawing. The causative pathogen was to be determined but may meet endpoint definition if RSV-positivity was confirmed per study requirements. Evaluable efficacy - infant population= all infant participants who were born to maternal participants who did not have major protocol deviations prior to the delivery and who received the investigational product to which they were randomized at least 14 days prior to delivery, were eligible, had no major protocol deviations. “Number of Participants Analyzed”= number of participants included in evaluable efficacy - infant population.
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End point type |
Primary
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End point timeframe |
Within 120 Days after birth
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Notes [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: This endpoint was analysed only for infant participants. |
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Statistical analysis title |
RSVpreF vs placebo | ||||||||||||
Statistical analysis description |
Vaccine efficacy was calculated as 1-(P/[1-P]), where P is the number of cases in the RSVpreF group divided by the total number of cases. Vaccine efficacy was presented in percentage.
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Comparison groups |
Infant Participants: RSVpreF v Infant Participants: Placebo
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Number of subjects included in analysis |
7148
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Analysis specification |
Pre-specified
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Analysis type |
superiority | ||||||||||||
Method |
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Parameter type |
Vaccine Efficacy | ||||||||||||
Point estimate |
54.5
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Confidence interval |
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level |
95% | ||||||||||||
sides |
2-sided
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lower limit |
33.2 | ||||||||||||
upper limit |
69.5 |
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End point title |
Percentage of MA-LRTI Cases due to RSV in Infant Participants Occurring Within 150 Days After Birth (Efficacy) [3] | ||||||||||||
End point description |
Results are presented as confirmed by endpoint adjudication committee. MA-LRTI case: Infant with an MA-RTI visit with age related fast breathing (RR =>60 bpm for <2 months of age [<60 days of age], =>50 bpm for =>2 months to <12 months of age, or =>40 bpm for =>12 months to 24 months of age) or SpO2 <95% or chest wall indrawing. The causative pathogen was to be determined but may meet endpoint definition if RSV-positivity was confirmed per study requirements. Evaluable efficacy - infant population= all infant participants who were born to maternal participants who did not have major protocol deviations prior to the delivery and who received the investigational product to which they were randomized at least 14 days prior to delivery, were eligible, had no major protocol deviations. “Number of Participants Analyzed”= number of participants included in evaluable efficacy - infant population.
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End point type |
Primary
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End point timeframe |
Within 150 Days after birth
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Notes [3] - 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: This endpoint was analysed only for infant participants. |
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Statistical analysis title |
RSVpreF vs placebo | ||||||||||||
Statistical analysis description |
Vaccine efficacy was calculated as 1-(P/[1-P]), where P is the number of cases in the RSVpreF group divided by the total number of cases. Vaccine efficacy was presented in percentage.
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Comparison groups |
Infant Participants: RSVpreF v Infant Participants: Placebo
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Number of subjects included in analysis |
7148
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Analysis specification |
Pre-specified
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Analysis type |
superiority | ||||||||||||
Method |
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Parameter type |
Vaccine Efficacy | ||||||||||||
Point estimate |
50
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Confidence interval |
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level |
95% | ||||||||||||
sides |
2-sided
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lower limit |
30.3 | ||||||||||||
upper limit |
64.5 |
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End point title |
Percentage of Severe MA-LRTI Cases due to RSV in Infant Participants Occurring Within 120 Days After Birth (Efficacy) [4] | ||||||||||||
End point description |
Results are presented as confirmed by endpoint adjudication committee. Severe MA-LRTI cases were a subset of MA-LRTI cases, and all severe MA-LRTI cases were considered MA-LRTI cases. Severe MA-LRTI case was a RSV positively adjudicated event which met the following defined criteria: An infant with an MA-RTI visit and aged associated fast breathing (RR =>70 bpm for <2 months of age [<60 days of age], =>60 bpm for =>2 months to <12 months of age, or =>50 bpm for =>12 months to 24 months of age) or SpO2 <93% or high-flow nasal cannula or mechanical ventilation (i.e., invasive or noninvasive) or ICU admission for more than (>)4 hours or failure to respond/unconscious. Evaluable efficacy - infant population was used. Here, “Number of Participants Analyzed” signifies number of participants included in evaluable efficacy - infant population.
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End point type |
Primary
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End point timeframe |
Within 120 Days after birth
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Notes [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: This endpoint was analysed only for infant participants. |
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Statistical analysis title |
RSVpreF vs placebo | ||||||||||||
Statistical analysis description |
Vaccine efficacy was calculated as 1-(P/[1-P]), where P is the number of cases in the RSVpreF group divided by the total number of cases. Vaccine efficacy was presented in percentage.
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||||||||||||
Comparison groups |
Infant Participants: RSVpreF v Infant Participants: Placebo
|
||||||||||||
Number of subjects included in analysis |
7148
|
||||||||||||
Analysis specification |
Pre-specified
|
||||||||||||
Analysis type |
superiority | ||||||||||||
Method |
|||||||||||||
Parameter type |
Vaccine Efficacy | ||||||||||||
Point estimate |
73.5
|
||||||||||||
Confidence interval |
|||||||||||||
level |
95% | ||||||||||||
sides |
2-sided
|
||||||||||||
lower limit |
50.3 | ||||||||||||
upper limit |
86.8 |
|
|||||||||||||
End point title |
Percentage of Severe MA-LRTI Cases due to RSV in Infant Participants Occurring Within 90 Days After Birth (Efficacy) [5] | ||||||||||||
End point description |
Results are presented as confirmed by endpoint adjudication committee. Severe MA-LRTI cases were a subset of MA-LRTI cases, and all severe MA-LRTI cases were considered MA-LRTI cases. Severe MA-LRTI case was a RSV positively adjudicated event which met the following defined criteria: An infant with an MA-RTI visit and aged associated fast breathing (RR =>70 bpm for <2 months of age [<60 days of age], =>60 bpm for =>2 months to <12 months of age, or =>50 bpm for =>12 months to 24 months of age) or SpO2 <93% or high-flow nasal cannula or mechanical ventilation (i.e., invasive or noninvasive) or ICU admission for more than (>)4 hours or failure to respond/unconscious. Evaluable efficacy - infant population was used. Here, “Number of Participants Analyzed” signifies number of participants included in evaluable efficacy - infant population.
|
||||||||||||
End point type |
Primary
|
||||||||||||
End point timeframe |
Within 90 Days after birth
|
||||||||||||
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: This endpoint was analysed only for infant participants. |
|||||||||||||
|
|||||||||||||
Statistical analysis title |
RSVpreF vs placebo | ||||||||||||
Comparison groups |
Infant Participants: RSVpreF v Infant Participants: Placebo
|
||||||||||||
Number of subjects included in analysis |
7148
|
||||||||||||
Analysis specification |
Pre-specified
|
||||||||||||
Analysis type |
superiority [6] | ||||||||||||
Method |
|||||||||||||
Parameter type |
Vaccine Efficacy | ||||||||||||
Point estimate |
82.4
|
||||||||||||
Confidence interval |
|||||||||||||
level |
95% | ||||||||||||
sides |
2-sided
|
||||||||||||
lower limit |
57.5 | ||||||||||||
upper limit |
93.9 | ||||||||||||
Notes [6] - Vaccine efficacy was calculated as 1-(P/[1-P]), where P is the number of cases in the RSVpreF group divided by the total number of cases. Vaccine efficacy was presented in percentage. |
|
|||||||||||||
End point title |
Percentage of MA-LRTI Cases due to RSV in Infant Participants Occurring Within 180 Days After Birth (Efficacy) [7] | ||||||||||||
End point description |
Results are presented as confirmed by endpoint adjudication committee. MA-LRTI case: Infant with an MA-RTI visit with age related fast breathing (RR =>60 bpm for <2 months of age [<60 days of age], =>50 bpm for =>2 months to <12 months of age, or =>40 bpm for =>12 months to 24 months of age) or SpO2 <95% or chest wall indrawing. The causative pathogen was to be determined but may meet endpoint definition if RSV-positivity was confirmed per study requirements. Evaluable efficacy - infant population= all infant participants who were born to maternal participants who did not have major protocol deviations prior to the delivery and who received the investigational product to which they were randomized at least 14 days prior to delivery, were eligible, had no major protocol deviations. “Number of Participants Analyzed”= number of participants included in evaluable efficacy - infant population.
|
||||||||||||
End point type |
Primary
|
||||||||||||
End point timeframe |
Within 180 Days after birth
|
||||||||||||
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: This endpoint was analysed only for infant participants. |
|||||||||||||
|
|||||||||||||
Statistical analysis title |
RSVpreF vs placebo | ||||||||||||
Statistical analysis description |
Vaccine efficacy was calculated as 1-(P/[1-P]), where P is the number of cases in the RSVpreF group divided by the total number of cases. Vaccine efficacy was presented in percentage.
|
||||||||||||
Comparison groups |
Infant Participants: RSVpreF v Infant Participants: Placebo
|
||||||||||||
Number of subjects included in analysis |
7148
|
||||||||||||
Analysis specification |
Pre-specified
|
||||||||||||
Analysis type |
superiority | ||||||||||||
Method |
|||||||||||||
Parameter type |
Vaccine Efficacy | ||||||||||||
Point estimate |
49.2
|
||||||||||||
Confidence interval |
|||||||||||||
level |
95% | ||||||||||||
sides |
2-sided
|
||||||||||||
lower limit |
31.4 | ||||||||||||
upper limit |
62.8 |
|
|||||||||||||
End point title |
Percentage of Infant Participants With Adverse Events of Special Interest (AESI) (Safety) [8] [9] | ||||||||||||
End point description |
AESI: Subset of targeted medical events based on review of known pharmacology, toxicology findings, possible class effects, published literature, and signals arising from safety data assessments, and on population under study. AESI's were based on targeted medical events associated with pregnant maternal participants and their infants prior to/during delivery and at birth. For infant participants AESI: Preterm birth (born at <37weeks gestation); birth weight 1001-2500 grams; developmental delay; positive viral (polymerase chain reaction [PCR] or antigen-based) testing for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), when not reported during MA-RTI visit, were reported as SARS-CoV-2 test positive. Extremely preterm birth (<28weeks), extremely low birth weight (=<1000 g) were reported AESI as SAE. Infant safety population: infant participants born to vaccinated maternal participants. “Number of Participants Analyzed”= participants included in infant safety population.
|
||||||||||||
End point type |
Primary
|
||||||||||||
End point timeframe |
Birth to 24 Months of age
|
||||||||||||
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: This endpoint was analysed only for infant participants. [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: This endpoint was analysed only for infant participants. |
|||||||||||||
|
|||||||||||||
No statistical analyses for this end point |
|
|||||||||||||
End point title |
Percentage of Severe MA-LRTI Cases due to RSV in Infant Participants Occurring Within 150 Days After Birth (Efficacy) [10] | ||||||||||||
End point description |
Results are presented as confirmed by endpoint adjudication committee. Severe MA-LRTI cases were a subset of MA-LRTI cases, and all severe MA-LRTI cases were considered MA-LRTI cases. Severe MA-LRTI case was a RSV positively adjudicated event which met the following defined criteria: An infant with an MA-RTI visit and aged associated fast breathing (RR =>70 bpm for <2 months of age [<60 days of age], =>60 bpm for =>2 months to <12 months of age, or =>50 bpm for =>12 months to 24 months of age) or SpO2 <93% or high-flow nasal cannula or mechanical ventilation (i.e., invasive or noninvasive) or ICU admission for more than (>)4 hours or failure to respond/unconscious. Evaluable efficacy - infant population was used. Here, “Number of Participants Analyzed” signifies number of participants included in evaluable efficacy - infant population.
|
||||||||||||
End point type |
Primary
|
||||||||||||
End point timeframe |
Within 150 Days after birth
|
||||||||||||
Notes [10] - 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: This endpoint was analysed only for infant participants. |
|||||||||||||
|
|||||||||||||
Statistical analysis title |
RSVpreF vs placebo | ||||||||||||
Statistical analysis description |
Vaccine efficacy was calculated as 1-(P/[1-P]), where P is the number of cases in the RSVpreF group divided by the total number of cases. Vaccine efficacy was presented in percentage.
|
||||||||||||
Comparison groups |
Infant Participants: RSVpreF v Infant Participants: Placebo
|
||||||||||||
Number of subjects included in analysis |
7148
|
||||||||||||
Analysis specification |
Pre-specified
|
||||||||||||
Analysis type |
superiority | ||||||||||||
Method |
|||||||||||||
Parameter type |
Vaccine Efficacy | ||||||||||||
Point estimate |
70.5
|
||||||||||||
Confidence interval |
|||||||||||||
level |
95% | ||||||||||||
sides |
2-sided
|
||||||||||||
lower limit |
49.4 | ||||||||||||
upper limit |
83.6 |
|
|||||||||||||
End point title |
Percentage of Severe MA-LRTI Cases due to RSV in Infant Participants Occurring Within 180 Days After Birth (Efficacy) [11] | ||||||||||||
End point description |
Results are presented as confirmed by endpoint adjudication committee. Severe MA-LRTI cases were a subset of MA-LRTI cases, and all severe MA-LRTI cases were considered MA-LRTI cases. Severe MA-LRTI case was a RSV positively adjudicated event which met the following defined criteria: An infant with an MA-RTI visit and aged associated fast breathing (RR =>70 bpm for <2 months of age [<60 days of age], =>60 bpm for =>2 months to <12 months of age, or =>50 bpm for =>12 months to 24 months of age) or SpO2 <93% or high-flow nasal cannula or mechanical ventilation (i.e., invasive or noninvasive) or ICU admission for more than (>)4 hours or failure to respond/unconscious. Evaluable efficacy - infant population was used. Here, “Number of Participants Analyzed” signifies number of participants included in evaluable efficacy - infant population.
|
||||||||||||
End point type |
Primary
|
||||||||||||
End point timeframe |
Within 180 Days after birth
|
||||||||||||
Notes [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: This endpoint was analysed only for infant participants. |
|||||||||||||
|
|||||||||||||
Statistical analysis title |
RSVpreF vs placebo | ||||||||||||
Statistical analysis description |
Vaccine efficacy was calculated as 1-(P/[1-P]), where P is the number of cases in the RSVpreF group divided by the total number of cases. Vaccine efficacy was presented in percentage.
|
||||||||||||
Comparison groups |
Infant Participants: RSVpreF v Infant Participants: Placebo
|
||||||||||||
Number of subjects included in analysis |
7148
|
||||||||||||
Analysis specification |
Pre-specified
|
||||||||||||
Analysis type |
superiority | ||||||||||||
Method |
|||||||||||||
Parameter type |
Vaccine Efficacy | ||||||||||||
Point estimate |
70
|
||||||||||||
Confidence interval |
|||||||||||||
level |
95% | ||||||||||||
sides |
2-sided
|
||||||||||||
lower limit |
50.6 | ||||||||||||
upper limit |
82.5 |
|
||||||||||||||||||||||
End point title |
Percentage of Infant Participants According to Appearance, Pulse, Grimace, Activity, and Respiration (APGAR) Score at 1 Minute After Birth (Safety) [12] [13] | |||||||||||||||||||||
End point description |
APGAR was a fast evaluation technique used to evaluate a newborn baby's overall health immediately after birth, and at 5 or 10 minutes later. APGAR stands for (A) Appearance (skin coloration), (P) Pulse (heart rate), (G) Grimace (reflex response), (A) Activity (muscle tone) and (R) Respiration (breathing). Each component was given a score of 0, 1, or 2 for a total possible score of 0-10, where higher scores indicate better health. A score of 7 to 10 was good, 4 to <7 was moderate, and <4 is poor. Infant safety population included all infant participants who were born to vaccinated maternal participants. Here, “Number of Participants Analyzed” signifies number of participants included in infant safety population.
|
|||||||||||||||||||||
End point type |
Primary
|
|||||||||||||||||||||
End point timeframe |
1 Minute after birth
|
|||||||||||||||||||||
Notes [12] - 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: This endpoint was analysed only for infant participants. [13] - 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: This endpoint was analysed only for infant participants. |
||||||||||||||||||||||
|
||||||||||||||||||||||
No statistical analyses for this end point |
|
|||||||||||||
End point title |
Percentage of Infant Participants With Neonatal Deaths (Safety) [14] [15] | ||||||||||||
End point description |
Neonatal death was defined as the death of a live-born infant that occurred within a month after birth. Infant safety population included all infant participants who were born to vaccinated maternal participants. Here, “Number of Participants Analyzed” signifies number of participants included in infant safety population.
|
||||||||||||
End point type |
Primary
|
||||||||||||
End point timeframe |
Within 1 Month after birth
|
||||||||||||
Notes [14] - 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: This endpoint was analysed only for infant participants. [15] - 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: This endpoint was analysed only for infant participants. |
|||||||||||||
|
|||||||||||||
No statistical analyses for this end point |
|
|||||||||||||
End point title |
Percentage of Infant Participants With Congenital Malformations/Anomalies (Safety) [16] [17] | ||||||||||||
End point description |
Congenital malformations/ anomalies were defined as structural or functional anomalies that occurred during intrauterine life and could be identified prenatally, at birth or later in life. Infant safety population included all infant participants who were born to vaccinated maternal participants. Here, “Number of Participants Analyzed” signifies number of participants included in infant safety population.
|
||||||||||||
End point type |
Primary
|
||||||||||||
End point timeframe |
At birth
|
||||||||||||
Notes [16] - 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: This endpoint was analysed only for infant participants. [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: This endpoint was analysed only for infant participants. |
|||||||||||||
|
|||||||||||||
No statistical analyses for this end point |
|
|||||||||||||
End point title |
Percentage of Infant Participants With Other Neonatal Events (Safety) [18] [19] | ||||||||||||
End point description |
Infant safety population included all infant participants who were born to vaccinated maternal participants. Here, “Number of Participants Analyzed” signifies number of participants included in infant safety population.
|
||||||||||||
End point type |
Primary
|
||||||||||||
End point timeframe |
Within 1 Month after birth
|
||||||||||||
Notes [18] - 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: This endpoint was analysed only for infant participants. [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: This endpoint was analysed only for infant participants. |
|||||||||||||
|
|||||||||||||
No statistical analyses for this end point |
|
||||||||||||||||||||||
End point title |
Percentage of Infant Participants According to APGAR Score at 5 Minutes After Birth (Safety) [20] [21] | |||||||||||||||||||||
End point description |
APGAR was a fast evaluation technique used to evaluate a newborn baby's overall health immediately after birth, and at 5 or 10 minutes later. APGAR stands for (A) Appearance (skin coloration), (P) Pulse (heart rate), (G) Grimace (reflex response), (A) Activity (muscle tone) and (R) Respiration (breathing). Each component was given a score of 0, 1, or 2 for a total possible score of 0-10, where higher scores indicate better health. A score of 7 to 10 was good, 4 to <7 was moderate, and <4 is poor. Infant safety population included all infant participants who were born to vaccinated maternal participants. Here, “Number of Participants Analyzed” signifies number of participants included in infant safety population.
|
|||||||||||||||||||||
End point type |
Primary
|
|||||||||||||||||||||
End point timeframe |
5 Minutes after birth
|
|||||||||||||||||||||
Notes [20] - 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: This endpoint was analysed only for infant participants. [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: This endpoint was analysed only for infant participants. |
||||||||||||||||||||||
|
||||||||||||||||||||||
No statistical analyses for this end point |
|
||||||||||||||||||||||
End point title |
Percentage of Infant Participants According to APGAR Score at 10 Minutes After Birth (Safety) [22] [23] | |||||||||||||||||||||
End point description |
APGAR was a fast evaluation technique used to evaluate a newborn baby's overall health immediately after birth, and at 5 or 10 minutes later. APGAR stands for (A) Appearance (skin coloration), (P) Pulse (heart rate), (G) Grimace (reflex response), (A) Activity (muscle tone) and (R) Respiration (breathing). Each component was given a score of 0, 1, or 2 for a total possible score of 0-10, where higher scores indicate better health. A score of 7 to 10 was good, 4 to <7 was moderate, and <4 is poor. Infant safety population included all infant participants who were born to vaccinated maternal participants. Here, “Number of Participants Analyzed” signifies number of participants included in infant safety population.
|
|||||||||||||||||||||
End point type |
Primary
|
|||||||||||||||||||||
End point timeframe |
10 Minutes after birth
|
|||||||||||||||||||||
Notes [22] - 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: This endpoint was analysed only for infant participants. [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: This endpoint was analysed only for infant participants. |
||||||||||||||||||||||
|
||||||||||||||||||||||
No statistical analyses for this end point |
|
|||||||||||||||||||
End point title |
Percentage of Infant Participants With SAEs and NDCMCs From Birth Through 12 Months of Age (Safety) [24] [25] | ||||||||||||||||||
End point description |
An AE was any untoward medical occurrence in a participant or clinical study participant, temporally associated with the use of study intervention, whether or not considered related to the study intervention. SAE was any untoward medical occurrence at any dose that: resulted in death, was life threatening required hospitalization or prolongation of existing hospitalization, resulted in persistent or significant disability/incapacity, resulted in congenital anomaly/birth defect or that was considered an important medical event. A NDCMC was defined as a disease or medical condition, not previously identified, that is expected to be persistent or otherwise long-lasting in its effects. Infant safety population included all infant participants who were born to vaccinated maternal participants. Here, “Number of Participants Analyzed” signifies participants included in infant safety population and evaluable for this endpoint.
|
||||||||||||||||||
End point type |
Primary
|
||||||||||||||||||
End point timeframe |
From birth to 12 Months of age
|
||||||||||||||||||
Notes [24] - 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: This endpoint was analysed only for infant participants. [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: This endpoint was analysed only for infant participants. |
|||||||||||||||||||
|
|||||||||||||||||||
No statistical analyses for this end point |
|
|||||||||||||
End point title |
Percentage of Infant Participants With Adverse Events (AEs) From Birth to 1 Month of Age (Safety) [26] [27] | ||||||||||||
End point description |
An AE was any untoward medical occurrence in a participant or clinical study participant, temporally associated with the use of study intervention, whether or not considered related to the study intervention. Infant safety population included all infant participants who were born to vaccinated maternal participants. Here, “Number of Participants Analyzed” signifies number of participants included in infant safety population.
|
||||||||||||
End point type |
Primary
|
||||||||||||
End point timeframe |
From birth to 1 Month of age
|
||||||||||||
Notes [26] - 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: This endpoint was analysed only for infant participants. [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: This endpoint was analysed only for infant participants. |
|||||||||||||
|
|||||||||||||
No statistical analyses for this end point |
|
|||||||||||||||||||
End point title |
Percentage of Infant Participants With Serious Adverse Events (SAEs) and Newly Diagnosed Chronic Medical Conditions (NDCMCs) From Birth Through 6 Months of Age (Safety) [28] [29] | ||||||||||||||||||
End point description |
An AE was any untoward medical occurrence in a participant or clinical study participant, temporally associated with the use of study intervention, whether or not considered related to the study intervention. SAE was any untoward medical occurrence at any dose that: resulted in death, was life threatening required hospitalization or prolongation of existing hospitalization, resulted in persistent or significant disability/incapacity, resulted in congenital anomaly/birth defect or that was considered an important medical event. A NDCMC was defined as a disease or medical condition, not previously identified, that is expected to be persistent or otherwise long-lasting in its effects. Infant safety population included all infant participants who were born to vaccinated maternal participants. Here, “Number of Participants Analyzed” signifies participants included in infant safety population and evaluable for this endpoint.
|
||||||||||||||||||
End point type |
Primary
|
||||||||||||||||||
End point timeframe |
From birth to 6 Months of age
|
||||||||||||||||||
Notes [28] - 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: This endpoint was analysed only for infant participants. [29] - 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: This endpoint was analysed only for infant participants. |
|||||||||||||||||||
|
|||||||||||||||||||
No statistical analyses for this end point |
|
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
End point title |
Percentage of Maternal Participants With Prespecified Local Reactions (LR) Within 7 Days After Vaccination (Safety) [30] [31] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||
End point description |
Local reactions included redness, swelling, and pain at injection site and were recorded in electronic diary (e-diary). Redness and swelling were measured and recorded in measuring device units. 1 measuring device unit= 0.5 centimetre (cm). Redness and swelling were graded as mild (greater than [>]2.0 to 5.0 cm), moderate (>5.0 to 10.0 cm), severe (>10.0 cm) and grade 4 (necrosis or exfoliative dermatitis). Pain at injection site was graded as mild (did not interfere with activity), moderate (interfered with activity), severe (prevented daily activity) and grade 4 (emergency room visit or hospitalization for the severe pain at the injection site). Maternal safety population included all randomised maternal participants who received investigational product. Here, “Number of Participants Analyzed” = number of participants included in maternal safety population and evaluable for this endpoint.
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||
End point type |
Primary
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||
End point timeframe |
Within 7 Day follow-up period after vaccination
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Notes [30] - 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: This endpoint was analysed only for maternal participants. [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: This endpoint was analysed only for maternal participants. |
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
No statistical analyses for this end point |
|
|||||||||||||||||||
End point title |
Percentage of Infant Participants With SAEs and NDCMCs From Birth Through 24 Months of Age (Safety) [32] [33] | ||||||||||||||||||
End point description |
An AE was any untoward medical occurrence in a participant or clinical study participant, temporally associated with the use of study intervention, whether or not considered related to the study intervention. SAE was any untoward medical occurrence at any dose that: resulted in death, was life threatening required hospitalization or prolongation of existing hospitalization, resulted in persistent or significant disability/incapacity, resulted in congenital anomaly/birth defect or that was considered an important medical event. A NDCMC was defined as a disease or medical condition, not previously identified, that is expected to be persistent or otherwise long-lasting in its effects. Infant safety population included all infant participants who were born to vaccinated maternal participants. Here, “Number of Participants Analyzed” signifies participants included in infant safety population and evaluable for this endpoint.
|
||||||||||||||||||
End point type |
Primary
|
||||||||||||||||||
End point timeframe |
From birth to 24 Months of age
|
||||||||||||||||||
Notes [32] - 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: This endpoint was analysed only for infant participants. [33] - 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: This endpoint was analysed only for infant participants. |
|||||||||||||||||||
|
|||||||||||||||||||
No statistical analyses for this end point |
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
End point title |
Percentage of Maternal Participants With Prespecified Systemic Events (SE) Within 7 Days after Vaccination (Safety) [34] [35] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
End point description |
Systemic events included: fever, fatigue, headache, nausea, muscle pain, joint pain, vomiting, and diarrhoea. Fever was classified as: =>38.0 degree Celsius [C]), 38.0-38.4, 38.5-38.9, 39.0 40.0 and >40.0 degree C. Headache, nausea, fatigue, muscle pain and joint pain were graded as mild (didn’t interfere with activity), moderate (some interference with activity), severe (prevented daily activity) and grade 4 (emergency room visit or hospitalization). Vomiting: mild (1-2 times in 24 hours [H]), moderate (>2 times in 24 H), severe (required intravenous [IV] hydration) and grade 4 (emergency room visit or hospitalization). Diarrhoea: mild (2-3 loose stools in 24 H), moderate (4-5 loose stools in 24 H), severe (>=6 in 24 H) and grade 4 (emergency room visit or hospitalization). Maternal safety population evaluated. Here, “Number of Participants Analyzed”= participants included in maternal safety population and evaluable for this endpoint.
|
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
End point type |
Primary
|
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
End point timeframe |
Within 7 Day follow-up period after vaccination
|
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Notes [34] - 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: This endpoint was analysed only for maternal participants. [35] - 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: This endpoint was analysed only for maternal participants. |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
No statistical analyses for this end point |
|
|||||||||||||
End point title |
Percentage of Maternal Participants With SAEs Throughout the Study Period (Safety) [36] [37] | ||||||||||||
End point description |
SAE was any untoward medical occurrence at any dose that: resulted in death, was life threatening required hospitalization or prolongation of existing hospitalization, resulted in persistent or significant disability/incapacity, resulted in congenital anomaly/birth defect or that was considered an important medical event. Maternal safety population included all randomised maternal participants who received investigational product. Here, “Number of Participants Analyzed” signifies participants included in maternal safety population.
|
||||||||||||
End point type |
Primary
|
||||||||||||
End point timeframe |
Up to 6 Months
|
||||||||||||
Notes [36] - 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: This endpoint was analysed only for maternal participants. [37] - 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: This endpoint was analysed only for maternal participants. |
|||||||||||||
|
|||||||||||||
No statistical analyses for this end point |
|
|||||||||||||
End point title |
Percentage of Maternal Participants With AEs From the Time of Vaccination Through 1 Month After Vaccination (Safety) [38] [39] | ||||||||||||
End point description |
An AE was any untoward medical occurrence in a participant or clinical study participant, temporally associated with the use of study intervention, whether or not considered related to the study intervention. Maternal safety population included all randomised maternal participants who received investigational product. Here, “Number of Participants Analyzed” signifies participants included in maternal safety population.
|
||||||||||||
End point type |
Primary
|
||||||||||||
End point timeframe |
1 Month after vaccination
|
||||||||||||
Notes [38] - 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: This endpoint was analysed only for maternal participants. [39] - 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: This endpoint was analysed only for maternal participants. |
|||||||||||||
|
|||||||||||||
No statistical analyses for this end point |
|
||||||||||||||||||||||||||||
End point title |
Percentage of Hospitalizations due to RSV in Infant Participants Occurring Within 90, 120, 150, 180 and 360 Days After Birth (Efficacy) [40] | |||||||||||||||||||||||||||
End point description |
Results are reported as confirmed by endpoint adjudication committee. The evaluable efficacy – infant population included all infant participants who are born to maternal participants who did not have major protocol deviations prior to the delivery and who received the investigational product to which they were randomized at least 14 days prior to delivery, were eligible, and had no major protocol deviations. Here, “Number of Participants Analyzed” signifies participants included in evaluable efficacy – infant population and evaluable for this endpoint.
|
|||||||||||||||||||||||||||
End point type |
Secondary
|
|||||||||||||||||||||||||||
End point timeframe |
Within 90, 120, 150, 180 and 360 Days after birth
|
|||||||||||||||||||||||||||
Notes [40] - 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: This endpoint was analysed only for infant participants. |
||||||||||||||||||||||||||||
|
||||||||||||||||||||||||||||
Statistical analysis title |
RSVpreF vs placebo | |||||||||||||||||||||||||||
Statistical analysis description |
Vaccine efficacy within 90 days after birth. Vaccine efficacy was calculated as 1-(P/[1-P]), where P is the number of cases in the RSVpreF group divided by the total number of cases. Vaccine efficacy was presented in percentage.
|
|||||||||||||||||||||||||||
Comparison groups |
Infant Participants: RSVpreF v Infant Participants: Placebo
|
|||||||||||||||||||||||||||
Number of subjects included in analysis |
7148
|
|||||||||||||||||||||||||||
Analysis specification |
Pre-specified
|
|||||||||||||||||||||||||||
Analysis type |
superiority | |||||||||||||||||||||||||||
Method |
||||||||||||||||||||||||||||
Parameter type |
Vaccine efficacy | |||||||||||||||||||||||||||
Point estimate |
69.7
|
|||||||||||||||||||||||||||
Confidence interval |
||||||||||||||||||||||||||||
level |
95% | |||||||||||||||||||||||||||
sides |
2-sided
|
|||||||||||||||||||||||||||
lower limit |
37.1 | |||||||||||||||||||||||||||
upper limit |
86.7 | |||||||||||||||||||||||||||
Statistical analysis title |
RSVpreF vs placebo | |||||||||||||||||||||||||||
Statistical analysis description |
Vaccine efficacy within 120 days after birth. Vaccine efficacy was calculated as 1-(P/[1-P]), where P is the number of cases in the RSVpreF group divided by the total number of cases. Vaccine efficacy was presented in percentage.
|
|||||||||||||||||||||||||||
Comparison groups |
Infant Participants: RSVpreF v Infant Participants: Placebo
|
|||||||||||||||||||||||||||
Number of subjects included in analysis |
7148
|
|||||||||||||||||||||||||||
Analysis specification |
Pre-specified
|
|||||||||||||||||||||||||||
Analysis type |
superiority | |||||||||||||||||||||||||||
Method |
||||||||||||||||||||||||||||
Parameter type |
Vaccine efficacy | |||||||||||||||||||||||||||
Point estimate |
61.5
|
|||||||||||||||||||||||||||
Confidence interval |
||||||||||||||||||||||||||||
level |
95% | |||||||||||||||||||||||||||
sides |
2-sided
|
|||||||||||||||||||||||||||
lower limit |
28.6 | |||||||||||||||||||||||||||
upper limit |
80.3 | |||||||||||||||||||||||||||
Statistical analysis title |
RSVpreF vs placebo | |||||||||||||||||||||||||||
Statistical analysis description |
Vaccine efficacy within 150 days after birth. Vaccine efficacy was calculated as 1-(P/[1-P]), where P is the number of cases in the RSVpreF group divided by the total number of cases. Vaccine efficacy was presented in percentage.
|
|||||||||||||||||||||||||||
Comparison groups |
Infant Participants: RSVpreF v Infant Participants: Placebo
|
|||||||||||||||||||||||||||
Number of subjects included in analysis |
7148
|
|||||||||||||||||||||||||||
Analysis specification |
Pre-specified
|
|||||||||||||||||||||||||||
Analysis type |
superiority | |||||||||||||||||||||||||||
Method |
||||||||||||||||||||||||||||
Parameter type |
Vaccine efficacy | |||||||||||||||||||||||||||
Point estimate |
57.1
|
|||||||||||||||||||||||||||
Confidence interval |
||||||||||||||||||||||||||||
level |
95% | |||||||||||||||||||||||||||
sides |
2-sided
|
|||||||||||||||||||||||||||
lower limit |
23.9 | |||||||||||||||||||||||||||
upper limit |
76.8 | |||||||||||||||||||||||||||
Statistical analysis title |
RSVpreF vs placebo | |||||||||||||||||||||||||||
Statistical analysis description |
Vaccine efficacy within 180 days after birth. Vaccine efficacy was calculated as 1-(P/[1-P]), where P is the number of cases in the RSVpreF group divided by the total number of cases. Vaccine efficacy was presented in percentage.
|
|||||||||||||||||||||||||||
Comparison groups |
Infant Participants: RSVpreF v Infant Participants: Placebo
|
|||||||||||||||||||||||||||
Number of subjects included in analysis |
7148
|
|||||||||||||||||||||||||||
Analysis specification |
Pre-specified
|
|||||||||||||||||||||||||||
Analysis type |
superiority | |||||||||||||||||||||||||||
Method |
||||||||||||||||||||||||||||
Parameter type |
Vaccine efficacy | |||||||||||||||||||||||||||
Point estimate |
55.3
|
|||||||||||||||||||||||||||
Confidence interval |
||||||||||||||||||||||||||||
level |
95% | |||||||||||||||||||||||||||
sides |
2-sided
|
|||||||||||||||||||||||||||
lower limit |
23.8 | |||||||||||||||||||||||||||
upper limit |
74.6 | |||||||||||||||||||||||||||
Statistical analysis title |
RSVpreF vs placebo | |||||||||||||||||||||||||||
Statistical analysis description |
Vaccine efficacy within 360 days after birth. Vaccine efficacy was calculated as 1-(P/[1-P]), where P is the number of cases in the RSVpreF group divided by the total number of cases. Vaccine efficacy was presented in percentage.
|
|||||||||||||||||||||||||||
Comparison groups |
Infant Participants: RSVpreF v Infant Participants: Placebo
|
|||||||||||||||||||||||||||
Number of subjects included in analysis |
7148
|
|||||||||||||||||||||||||||
Analysis specification |
Post-hoc
|
|||||||||||||||||||||||||||
Analysis type |
superiority | |||||||||||||||||||||||||||
Method |
||||||||||||||||||||||||||||
Parameter type |
Vaccine efficacy | |||||||||||||||||||||||||||
Point estimate |
24.2
|
|||||||||||||||||||||||||||
Confidence interval |
||||||||||||||||||||||||||||
level |
95% | |||||||||||||||||||||||||||
sides |
2-sided
|
|||||||||||||||||||||||||||
lower limit |
-11.1 | |||||||||||||||||||||||||||
upper limit |
48.6 |
|
||||||||||||||||||||||||||||
End point title |
Percentage of MA-LRTI Cases due to any Cause With Protocol Defined Criteria in Infant Participants Occurring Within 90, 120, 150, 180 and 360 Days After Birth (Efficacy) [41] | |||||||||||||||||||||||||||
End point description |
MA-LRTI cases due to any cause occurring within 90 days, 120 days, 150 days, 180 days, and 360 days after birth was defined as an infant with an MA-RTI visit with age related fast breathing (RR =>60 bpm for <2 months of age [<60 days of age], =>50 bpm for =>2 months to <12 months of age, or =>40 bpm for =>12 months to 24 months of age) or SpO2 <95% or chest wall indrawing. The evaluable efficacy - infant population included all infant participants who were born to maternal participants who did not have major protocol deviations prior to the delivery and who received the investigational product to which they were randomized at least 14 days prior to delivery, were eligible, and had no major protocol deviations. Here, “Number of Participants Analyzed” signifies number of participants included in evaluable efficacy - infant population and evaluable for this endpoint.
|
|||||||||||||||||||||||||||
End point type |
Secondary
|
|||||||||||||||||||||||||||
End point timeframe |
Within 90, 120, 150, 180 and 360 Days after birth
|
|||||||||||||||||||||||||||
Notes [41] - 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: This endpoint was analysed only for infant participants. |
||||||||||||||||||||||||||||
|
||||||||||||||||||||||||||||
Statistical analysis title |
RSVpreF vs placebo | |||||||||||||||||||||||||||
Statistical analysis description |
Vaccine efficacy within 90 days after birth. Vaccine efficacy was calculated as 1-(P/[1-P]), where P is the number of cases in the RSVpreF group divided by the total number of cases. The confidence interval was adjusted using Bonferroni procedure and accounting for the primary endpoints results. Vaccine efficacy was presented in percentage.
|
|||||||||||||||||||||||||||
Comparison groups |
Infant Participants: RSVpreF v Infant Participants: Placebo
|
|||||||||||||||||||||||||||
Number of subjects included in analysis |
6975
|
|||||||||||||||||||||||||||
Analysis specification |
Pre-specified
|
|||||||||||||||||||||||||||
Analysis type |
superiority | |||||||||||||||||||||||||||
Method |
||||||||||||||||||||||||||||
Parameter type |
Vaccine efficacy | |||||||||||||||||||||||||||
Point estimate |
7
|
|||||||||||||||||||||||||||
Confidence interval |
||||||||||||||||||||||||||||
level |
99.17% | |||||||||||||||||||||||||||
sides |
2-sided
|
|||||||||||||||||||||||||||
lower limit |
-22.3 | |||||||||||||||||||||||||||
upper limit |
29.3 | |||||||||||||||||||||||||||
Statistical analysis title |
RSVpreF vs placebo | |||||||||||||||||||||||||||
Statistical analysis description |
Vaccine efficacy within 120 days after birth. Vaccine efficacy was calculated as 1-(P/[1-P]), where P is the number of cases in the RSVpreF group divided by the total number of cases. The confidence interval was adjusted using Bonferroni procedure and accounting for the primary endpoints results. Vaccine efficacy was presented in percentage.
|
|||||||||||||||||||||||||||
Comparison groups |
Infant Participants: RSVpreF v Infant Participants: Placebo
|
|||||||||||||||||||||||||||
Number of subjects included in analysis |
6975
|
|||||||||||||||||||||||||||
Analysis specification |
Pre-specified
|
|||||||||||||||||||||||||||
Analysis type |
superiority | |||||||||||||||||||||||||||
Method |
||||||||||||||||||||||||||||
Parameter type |
Vaccine efficacy | |||||||||||||||||||||||||||
Point estimate |
6.1
|
|||||||||||||||||||||||||||
Confidence interval |
||||||||||||||||||||||||||||
level |
99.17% | |||||||||||||||||||||||||||
sides |
2-sided
|
|||||||||||||||||||||||||||
lower limit |
-18.3 | |||||||||||||||||||||||||||
upper limit |
25.5 | |||||||||||||||||||||||||||
Statistical analysis title |
RSVpreF vs placebo | |||||||||||||||||||||||||||
Statistical analysis description |
Vaccine efficacy within 360 days after birth. Vaccine efficacy was calculated as 1-(P/[1-P]), where P is the number of cases in the RSVpreF group divided by the total number of cases. The confidence interval was adjusted using Bonferroni procedure and accounting for the primary endpoints results. Vaccine efficacy was presented in percentage.
|
|||||||||||||||||||||||||||
Comparison groups |
Infant Participants: RSVpreF v Infant Participants: Placebo
|
|||||||||||||||||||||||||||
Number of subjects included in analysis |
6975
|
|||||||||||||||||||||||||||
Analysis specification |
Pre-specified
|
|||||||||||||||||||||||||||
Analysis type |
superiority | |||||||||||||||||||||||||||
Method |
||||||||||||||||||||||||||||
Parameter type |
Vaccine efficacy | |||||||||||||||||||||||||||
Point estimate |
5.1
|
|||||||||||||||||||||||||||
Confidence interval |
||||||||||||||||||||||||||||
level |
99.17% | |||||||||||||||||||||||||||
sides |
2-sided
|
|||||||||||||||||||||||||||
lower limit |
-12.1 | |||||||||||||||||||||||||||
upper limit |
19.6 | |||||||||||||||||||||||||||
Statistical analysis title |
RSVpreF vs placebo | |||||||||||||||||||||||||||
Statistical analysis description |
Vaccine efficacy within 180 days after birth. Vaccine efficacy was calculated as 1-(P/[1-P]), where P is the number of cases in the RSVpreF group divided by the total number of cases. The confidence interval was adjusted using Bonferroni procedure and accounting for the primary endpoints results. Vaccine efficacy was presented in percentage.
|
|||||||||||||||||||||||||||
Comparison groups |
Infant Participants: RSVpreF v Infant Participants: Placebo
|
|||||||||||||||||||||||||||
Number of subjects included in analysis |
6975
|
|||||||||||||||||||||||||||
Analysis specification |
Pre-specified
|
|||||||||||||||||||||||||||
Analysis type |
superiority | |||||||||||||||||||||||||||
Method |
||||||||||||||||||||||||||||
Parameter type |
Vaccine efficacy | |||||||||||||||||||||||||||
Point estimate |
2.5
|
|||||||||||||||||||||||||||
Confidence interval |
||||||||||||||||||||||||||||
level |
99.17% | |||||||||||||||||||||||||||
sides |
2-sided
|
|||||||||||||||||||||||||||
lower limit |
-17.9 | |||||||||||||||||||||||||||
upper limit |
19.4 | |||||||||||||||||||||||||||
Statistical analysis title |
RSVpreF vs placebo | |||||||||||||||||||||||||||
Statistical analysis description |
Vaccine efficacy within 150 days after birth. Vaccine efficacy was calculated as 1-(P/[1-P]), where P is the number of cases in the RSVpreF group divided by the total number of cases. The confidence interval was adjusted using Bonferroni procedure and accounting for the primary endpoints results. Vaccine efficacy was presented in percentage.
|
|||||||||||||||||||||||||||
Comparison groups |
Infant Participants: RSVpreF v Infant Participants: Placebo
|
|||||||||||||||||||||||||||
Number of subjects included in analysis |
6975
|
|||||||||||||||||||||||||||
Analysis specification |
Pre-specified
|
|||||||||||||||||||||||||||
Analysis type |
superiority | |||||||||||||||||||||||||||
Method |
||||||||||||||||||||||||||||
Parameter type |
Vaccine efficacy | |||||||||||||||||||||||||||
Point estimate |
5.2
|
|||||||||||||||||||||||||||
Confidence interval |
||||||||||||||||||||||||||||
level |
99.17% | |||||||||||||||||||||||||||
sides |
2-sided
|
|||||||||||||||||||||||||||
lower limit |
-16.5 | |||||||||||||||||||||||||||
upper limit |
22.8 |
|
|||||||||||||||||||||||||
End point title |
Percentage of MA-LRTI Cases due to RSV in Infant Participants Occurring Within 210, 240, 270 and 360 Days After Birth (Efficacy) [42] | ||||||||||||||||||||||||
End point description |
Results are presented as confirmed by endpoint adjudication committee. MA-LRTI case: Infant with an MA-RTI visit with age related fast breathing (RR =>60 bpm for <2 months of age [<60 days of age], =>50 bpm for =>2 months to <12 months of age, or =>40 bpm for =>12 months to 24 months of age) or SpO2 <95% or chest wall indrawing. The causative pathogen was to be determined but may meet endpoint definition if RSV-positivity was confirmed per study requirements. Evaluable efficacy - infant population= all infant participants who were born to maternal participants who did not have major protocol deviations prior to the delivery and who received the investigational product to which they were randomized at least 14 days prior to delivery, were eligible, had no major protocol deviations. “Number of Participants Analyzed”= number of participants included in evaluable efficacy - infant population and evaluable for this endpoint.
|
||||||||||||||||||||||||
End point type |
Secondary
|
||||||||||||||||||||||||
End point timeframe |
Within 210, 240, 270 and 360 Days after birth
|
||||||||||||||||||||||||
Notes [42] - 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: This endpoint was analysed only for infant participants. |
|||||||||||||||||||||||||
|
|||||||||||||||||||||||||
Statistical analysis title |
RSVpreF vs placebo | ||||||||||||||||||||||||
Statistical analysis description |
Vaccine efficacy at 210 days after birth. Vaccine efficacy was calculated as 1-(P/[1-P]), where P is the number of cases in the RSVpreF group divided by the total number of cases. The confidence interval was adjusted using Bonferroni procedure and accounting for the primary endpoints results. Vaccine efficacy was presented in percentage.
|
||||||||||||||||||||||||
Comparison groups |
Infant Participants: RSVpreF v Infant Participants: Placebo
|
||||||||||||||||||||||||
Number of subjects included in analysis |
6975
|
||||||||||||||||||||||||
Analysis specification |
Pre-specified
|
||||||||||||||||||||||||
Analysis type |
superiority | ||||||||||||||||||||||||
Method |
|||||||||||||||||||||||||
Parameter type |
Vaccine efficacy | ||||||||||||||||||||||||
Point estimate |
44.9
|
||||||||||||||||||||||||
Confidence interval |
|||||||||||||||||||||||||
level |
99.17% | ||||||||||||||||||||||||
sides |
2-sided
|
||||||||||||||||||||||||
lower limit |
17.9 | ||||||||||||||||||||||||
upper limit |
63.5 | ||||||||||||||||||||||||
Statistical analysis title |
RSVpreF vs placebo | ||||||||||||||||||||||||
Statistical analysis description |
Vaccine efficacy at 360 days after birth. Vaccine efficacy was calculated as 1-(P/[1-P]), where P is the number of cases in the RSVpreF group divided by the total number of cases. The confidence interval was adjusted using Bonferroni procedure and accounting for the primary endpoints results. Vaccine efficacy was presented in percentage.
|
||||||||||||||||||||||||
Comparison groups |
Infant Participants: RSVpreF v Infant Participants: Placebo
|
||||||||||||||||||||||||
Number of subjects included in analysis |
6975
|
||||||||||||||||||||||||
Analysis specification |
Pre-specified
|
||||||||||||||||||||||||
Analysis type |
superiority | ||||||||||||||||||||||||
Method |
|||||||||||||||||||||||||
Parameter type |
Vaccine efficacy | ||||||||||||||||||||||||
Point estimate |
41
|
||||||||||||||||||||||||
Confidence interval |
|||||||||||||||||||||||||
level |
99.17% | ||||||||||||||||||||||||
sides |
2-sided
|
||||||||||||||||||||||||
lower limit |
16.2 | ||||||||||||||||||||||||
upper limit |
58.9 | ||||||||||||||||||||||||
Statistical analysis title |
RSVpreF vs placebo | ||||||||||||||||||||||||
Statistical analysis description |
Vaccine efficacy at 270 days after birth. Vaccine efficacy was calculated as 1-(P/[1-P]), where P is the number of cases in the RSVpreF group divided by the total number of cases. The confidence interval was adjusted using Bonferroni procedure and accounting for the primary endpoints results. Vaccine efficacy was presented in percentage.
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Comparison groups |
Infant Participants: RSVpreF v Infant Participants: Placebo
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Number of subjects included in analysis |
6975
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Analysis specification |
Pre-specified
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Analysis type |
superiority | ||||||||||||||||||||||||
Method |
|||||||||||||||||||||||||
Parameter type |
Vaccine efficacy | ||||||||||||||||||||||||
Point estimate |
40.1
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Confidence interval |
|||||||||||||||||||||||||
level |
99.17% | ||||||||||||||||||||||||
sides |
2-sided
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lower limit |
13 | ||||||||||||||||||||||||
upper limit |
59.2 | ||||||||||||||||||||||||
Statistical analysis title |
RSVpreF vs placebo | ||||||||||||||||||||||||
Statistical analysis description |
Vaccine efficacy at 240 days after birth. Vaccine efficacy was calculated as 1-(P/[1-P]), where P is the number of cases in the RSVpreF group divided by the total number of cases. The confidence interval was adjusted using Bonferroni procedure and accounting for the primary endpoints results. Vaccine efficacy was presented in percentage.
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Comparison groups |
Infant Participants: RSVpreF v Infant Participants: Placebo
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Number of subjects included in analysis |
6975
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Analysis specification |
Pre-specified
|
||||||||||||||||||||||||
Analysis type |
superiority | ||||||||||||||||||||||||
Method |
|||||||||||||||||||||||||
Parameter type |
Vaccine efficacy | ||||||||||||||||||||||||
Point estimate |
42.9
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Confidence interval |
|||||||||||||||||||||||||
level |
99.17% | ||||||||||||||||||||||||
sides |
2-sided
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lower limit |
16.1 | ||||||||||||||||||||||||
upper limit |
61.6 |
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Adverse events information
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Timeframe for reporting adverse events |
Maternal participants: AEs: Consent until 28 days after vaccination. SAEs & other AEs: Consent until end of study visit. Infant participants: AEs: Birth until 28 days after birth. SAEs, NDCMCs & other AEs: Consent until end of study visit
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Adverse event reporting additional description |
LR & SE were assessed by systematic assessment (SA) & AEs by non-SA. Same event may appear as both an AE & SAE. But, what is presented are distinct events. An event may be categorized as serious in one participant & as non-serious in another, or a participant may have experienced both SAE & non-SAE Maternal & infant safety population was evaluated.
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Assessment type |
Non-systematic | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Dictionary used for adverse event reporting
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Dictionary name |
MedDRA | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Dictionary version |
26.1
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Reporting groups
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Reporting group title |
Maternal Participants: RSVpreF
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Reporting group description |
Study-eligible pregnant women (maternal participants) were randomized to receive a single dose of 120 mcg RSVpreF, IM on Day 1 (day of vaccination). Participants were followed up to 6 months after delivery. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Reporting group title |
Infant Participants: RSVpreF
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Reporting group description |
Infant participants born to maternal participants vaccinated with a single dose of 120 mcg RSVpreF were included. Infant participants were all followed up for 12 months after birth, and for infants born to maternal participants during the first year of the study, they were followed up for 24 months after birth. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Reporting group title |
Infant Participants: Placebo
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Reporting group description |
Infant participants born to maternal participants who received placebo (matching RSVpreF without active vaccine) were included. Infant participants were all followed up for 12 months after birth, and for infants born to maternal participants during the first year of the study, they were followed up for 24 months after birth. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Reporting group title |
Maternal Participants: Placebo
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Reporting group description |
Maternal participants were randomized to receive placebo matching to RSVpreF as a single dose on Day 1 (day of vaccination). Participants were followed up to 6 months after delivery. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Frequency threshold for reporting non-serious adverse events: 1% | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Notes [1] - The number of subjects exposed to this adverse event is less than the total number of subjects exposed for the reporting group. These numbers are expected to be equal. Justification: Number of participants exposed is the number of participants at risk for this reactogenicity event and is different from the total safety population for this reporting group. [2] - The number of subjects exposed to this adverse event is less than the total number of subjects exposed for the reporting group. These numbers are expected to be equal. Justification: Number of participants exposed is the number of participants at risk for this reactogenicity event and is different from the total safety population for this reporting group. [3] - The number of subjects exposed to this adverse event is less than the total number of subjects exposed for the reporting group. These numbers are expected to be equal. Justification: Number of participants exposed is the number of participants at risk for this reactogenicity event and is different from the total safety population for this reporting group. [4] - The number of subjects exposed to this adverse event is less than the total number of subjects exposed for the reporting group. These numbers are expected to be equal. Justification: Number of participants exposed is the number of participants at risk for this reactogenicity event and is different from the total safety population for this reporting group. [5] - The number of subjects exposed to this adverse event is less than the total number of subjects exposed for the reporting group. These numbers are expected to be equal. Justification: Number of participants exposed is the number of participants at risk for this reactogenicity event and is different from the total safety population for this reporting group. [6] - The number of subjects exposed to this adverse event is less than the total number of subjects exposed for the reporting group. These numbers are expected to be equal. Justification: Number of participants exposed is the number of participants at risk for this reactogenicity event and is different from the total safety population for this reporting group. [7] - The number of subjects exposed to this adverse event is less than the total number of subjects exposed for the reporting group. These numbers are expected to be equal. Justification: Number of participants exposed is the number of participants at risk for this reactogenicity event and is different from the total safety population for this reporting group. [8] - The number of subjects exposed to this adverse event is less than the total number of subjects exposed for the reporting group. These numbers are expected to be equal. Justification: Number of participants exposed is the number of participants at risk for this reactogenicity event and is different from the total safety population for this reporting group. [9] - The number of subjects exposed to this adverse event is less than the total number of subjects exposed for the reporting group. These numbers are expected to be equal. Justification: Number of participants exposed is the number of participants at risk for this reactogenicity event and is different from the total safety population for this reporting group. [10] - The number of subjects exposed to this adverse event is less than the total number of subjects exposed for the reporting group. These numbers are expected to be equal. Justification: Number of participants exposed is the number of participants at risk for this reactogenicity event and is different from the total safety population for this reporting group. [11] - The number of subjects exposed to this adverse event is less than the total number of subjects exposed for the reporting group. These numbers are expected to be equal. Justification: Number of participants exposed is the number of participants at risk for this reactogenicity event and is different from the total safety population for this reporting group. |
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Substantial protocol amendments (globally) |
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Were there any global substantial amendments to the protocol? Yes | |||
Date |
Amendment |
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24 Mar 2020 |
Protocol Amendment 1: The study title updated to reflect the revised study design and the final dose and formulation of RSVpreF selected for maternal participants in this study (120mcg) based on recent results from the C3671003 maternal phase 2b trial; alignment of study procedures for maternal participants prior to vaccination; the sentence regarding intrapartum antibiotic prophylaxis (IAP) details for maternal participants with a group B streptococcal (GBS) status refined. Further clarification provided regarding the collection and safety reporting requirements for medically attended respiratory tract illness (MA-RTI) associated with maternal and infant participants. Schedule of Activities for Infant Subjects: Visit flexibility was increased to prioritize subject safety and adherence to local guidance in the event of a COVID-19 outbreak or other outbreaks. The protocol safety reporting criteria and period for AEs, SAEs, and NDCMCs were streamlined. The protocol’s safety, device deficiencies and endpoint reporting requirements were revised to ensure consistency with Pfizer’s updated safety reporting requirements for Pfizer studies. Clarification text was added to support the safety and pregnancy reporting requirements for subjects who may experience exposure during pregnancy while in the study. |
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26 Aug 2020 |
Protocol Amendment 3: Exploratory endpoint objective refined - the planned statistical analysis period of “after 6 months of age” to “all-cause MA-RTIs and hospitalizations due to RSV. Incorporated revisions to align endpoints with study duration, and incorporated analysis plans for the healthcare utilization endpoints. Clarified RSV seasonality, enrolment across gestational ages with regards to eligibility and RSV surveillance periods during the study. Clarifications to the eligibility criteria, and refined the Tdap vaccine administration requirements text to describe the timing of vaccinations based on recent data from the C3671004 study. Due to COVID and other potential pandemic situations, some revisions were made to the conduct of the study including safety-related updates for study participants and investigational sites; Additional procedures were outlined for the investigational sites to increase efficiency and completeness in capturing study endpoints during the RSV surveillance periods. The benefit-risk text was updated to include Phase 2 safety data.
Several Pfizer text revisions were incorporated regarding the safety reporting requirements for this study; the “SAE Reporting to Pfizer Safety via an Electronic Data Collection Tool” section was removed. |
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22 Mar 2021 |
Protocol Amendment 4: Increased study participant enrolment and included adolescent participants in the study. Statistical methods were updated and refined for both secondary and exploratory endpoints. Clarifications to the eligibility criteria including the gestational age determination, consent process for minors and foetal anomaly ultrasounds. Due to the COVID pandemic situations, additional revisions were made to the conduct of the study including, safety-related updates for maternal and infant participants pertaining to a positive test result for SARS-CoV-2 during the study, the use of licensed COVID-19 vaccines recommended during pregnancy, and acceptable standard of care assessments during study visits. Additional procedures were outlined for the investigational sites to increase efficiency and completeness in capturing study endpoints during COVID restrictive measures including nasal swab collection requirements from infant subjects during a confirmed MA-RTI episode. This was to provide flexibility and prioritize subject and site safety during the study. |
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12 Jan 2022 |
Protocol Amendment 5: Statistical update to the third secondary efficacy endpoint due to a typographical error. The administration requirements for maternal participants refined for licensed pertussis containing vaccines, licensed COVID-19 vaccines and COVID-19 vaccines authorized for temporary or emergency use. |
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01 Jun 2022 |
Protocol Amendment 6: Eligibility requirements pertaining to COVID concomitant vaccination requirements for study participants updated, revised the procedural assessment windows during the ongoing pandemic, and several Pfizer protocol template text revisions were incorporated pertaining to the dissemination of clinical study data. Statistical plans updated and refined in line with revised enrolment strategy and endpoint case -accrual plan based on RSV seasonality monitoring activities. |
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08 Aug 2022 |
Protocol Amendment 7: Based on regulatory feedback associated with protocol amendment 5, the statistical analysis was refined. |
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Interruptions (globally) |
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Were there any global interruptions to the trial? No | |||
Limitations and caveats |
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Limitations of the trial such as small numbers of subjects analysed or technical problems leading to unreliable data. | |||
Infant participants were not vaccinated and therefore not exposed, no reactogenicity events. Database does not accept “0”. Due to this limitation, exposed numbers are reported as total safety population for each infant group, which is not factual. | |||
Online references |
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http://www.ncbi.nlm.nih.gov/pubmed/37018474 |