Clinical Trial Results:
A Phase III, randomized, double-blind, placebo controlled multi-country study to demonstrate efficacy of a single dose of unadjuvanted RSV Maternal vaccine, administered IM to pregnant women 18 to 49 years of age, for prevention of RSV associated LRTI in their infants up to 6 months of age
Summary
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EudraCT number |
2020-001355-40 |
Trial protocol |
FI FR BE IT ES |
Global end of trial date |
14 Jun 2023
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Results information
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Results version number |
v2(current) |
This version publication date |
19 Oct 2024
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First version publication date |
05 Jul 2024
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Other versions |
v1 |
Version creation reason |
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 |
212171
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Additional study identifiers
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ISRCTN number |
- | ||
US NCT number |
NCT04605159 | ||
WHO universal trial number (UTN) |
- | ||
Sponsors
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Sponsor organisation name |
GlaxoSmithKline
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Sponsor organisation address |
Rue de l’Institut 89, Rixensart, Belgium, B-1330
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Public contact |
GSK Response Center, GlaxoSmithKline, 44 8664357343, GSKClinicalSupportHD@gsk.com
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Scientific contact |
GSK Response Center, GlaxoSmithKline, 44 8664357343, GSKClinicalSupportHD@gsk.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? |
No
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Results analysis stage
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Analysis stage |
Final
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Date of interim/final analysis |
20 Oct 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 |
14 Jun 2023
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Was the trial ended prematurely? |
Yes
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General information about the trial
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Main objective of the trial |
• To assess the efficacy of a single dose of the RSV Maternal vaccine administered to maternal participants in preventing medically assessed, RSV-associated severe LRTIs in their infant participants up to 6 months of age.
• To assess the efficacy of a single dose of the RSV Maternal vaccine administered to maternal participants in preventing medically assessed, RSV-associated LRTIs of any severity in their infant participants up to 6 months of age.
• To evaluate the safety of the RSV Maternal vaccine in infants born to mothers who were vaccinated with a single intramuscular (IM) dose of study vaccine, up to 12 months after birth.
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Protection of trial subjects |
All maternal participants were observed closely for at least 30 minutes after the administration of the vaccine/product. Appropriate medical treatment was readily available during the observation period in case of anaphylaxis and/or syncope. Vaccines/products were administered by qualified and trained personnel. Vaccines/products were administered only to eligible participants that had no contraindications to any components of the vaccines/products.
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Background therapy |
- | ||
Evidence for comparator |
- | ||
Actual start date of recruitment |
20 Nov 2020
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Long term follow-up planned |
No
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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: 566
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Country: Number of subjects enrolled |
Australia: 83
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Country: Number of subjects enrolled |
Bangladesh: 642
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Country: Number of subjects enrolled |
Belgium: 118
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Country: Number of subjects enrolled |
Brazil: 155
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Country: Number of subjects enrolled |
Canada: 92
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Country: Number of subjects enrolled |
Colombia: 541
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Country: Number of subjects enrolled |
Dominican Republic: 59
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Country: Number of subjects enrolled |
Finland: 389
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Country: Number of subjects enrolled |
France: 68
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Country: Number of subjects enrolled |
Honduras: 60
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Country: Number of subjects enrolled |
India: 119
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Country: Number of subjects enrolled |
Italy: 128
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Country: Number of subjects enrolled |
Korea, Republic of: 28
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Country: Number of subjects enrolled |
Mexico: 88
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Country: Number of subjects enrolled |
New Zealand: 434
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Country: Number of subjects enrolled |
Panama: 1471
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Country: Number of subjects enrolled |
Philippines: 695
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Country: Number of subjects enrolled |
South Africa: 1307
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Country: Number of subjects enrolled |
Spain: 1526
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Country: Number of subjects enrolled |
Taiwan: 229
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Country: Number of subjects enrolled |
Thailand: 114
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Country: Number of subjects enrolled |
United Kingdom: 2
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Country: Number of subjects enrolled |
United States: 2280
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Worldwide total number of subjects |
11194
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EEA total number of subjects |
2229
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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 |
323
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Newborns (0-27 days) |
4912
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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) |
0
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Adults (18-64 years) |
5959
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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 11194 participants (5959 maternal participants and 5235 infants) completed the informed consent process, of which 5328 maternal participants were exposed to the study intervention, and 5235 infants were born to those exposed mothers (RSV MAT Group - Mother and Placebo Group - Mother). Therefore, 10563 participants started the study. | ||||||||||||||||||||||||||||||||||||||||||||||||||
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 |
Not blinded | ||||||||||||||||||||||||||||||||||||||||||||||||||
Blinding implementation details |
The study was conducted in a double-blinded manner, but the study was unblinded following the decision to stop enrollment and vaccination in the study due to a safety signal.
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Arms
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Are arms mutually exclusive |
Yes
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Arm title
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RSV MAT Group - Mother | ||||||||||||||||||||||||||||||||||||||||||||||||||
Arm description |
Maternal participants received a single dose of the RSV MAT vaccine administered at Day 1 in this study. | ||||||||||||||||||||||||||||||||||||||||||||||||||
Arm type |
Experimental | ||||||||||||||||||||||||||||||||||||||||||||||||||
Investigational medicinal product name |
RSV MAT
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Investigational medicinal product code |
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Other name |
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Pharmaceutical forms |
Powder and solution for solution for injection
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Routes of administration |
Intramuscular use
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Dosage and administration details |
Single dose of the RSV MAT vaccine reconstituted with NaCl
solution, administered intramuscularly in the non-dominant arm, at Day 1.
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Arm title
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Placebo Group - Mother | ||||||||||||||||||||||||||||||||||||||||||||||||||
Arm description |
Maternal participants received a single dose of placebo administered at Day 1 in this study. | ||||||||||||||||||||||||||||||||||||||||||||||||||
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 |
Powder and solution for solution for injection
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Routes of administration |
Intramuscular use
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Dosage and administration details |
Single dose of Placebo (lyophilized sucrose reconstituted with NaCl
solution), administered intramuscularly in the non-dominant arm, at Day 1.
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Arm title
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RSV MAT Group - Infant | ||||||||||||||||||||||||||||||||||||||||||||||||||
Arm description |
This group consisted of infants born to mothers (from RSV MAT Group - Mother) who received a single dose of RSV MAT vaccine during pregnancy. | ||||||||||||||||||||||||||||||||||||||||||||||||||
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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Placebo Group - Infant | ||||||||||||||||||||||||||||||||||||||||||||||||||
Arm description |
This group consisted of infants born to mothers (from Placebo Group - Mother) who received a single dose of placebo during pregnancy. | ||||||||||||||||||||||||||||||||||||||||||||||||||
Arm type |
No intervention | ||||||||||||||||||||||||||||||||||||||||||||||||||
Investigational medicinal product name |
No investigational medicinal product assigned in this arm
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Notes [1] - The number of subjects reported to be in the baseline period are not the same as the worldwide number enrolled in the trial. It is expected that these numbers will be the same. Justification: A total of 11194 participants (5959 maternal participants and 5235 infants) completed the informed consent process, of which 5328 maternal participants were exposed to the study intervention, and 5235 infants were born to those exposed mothers (RSV MAT Group - Mother and Placebo Group - Mother). Therefore, 10563 participants started the study. |
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Baseline characteristics reporting groups
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Reporting group title |
RSV MAT Group - Mother
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Reporting group description |
Maternal participants received a single dose of the RSV MAT vaccine administered at Day 1 in this study. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Reporting group title |
Placebo Group - Mother
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Reporting group description |
Maternal participants received a single dose of placebo administered at Day 1 in this study. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Reporting group title |
RSV MAT Group - Infant
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Reporting group description |
This group consisted of infants born to mothers (from RSV MAT Group - Mother) who received a single dose of RSV MAT vaccine during pregnancy. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Reporting group title |
Placebo Group - Infant
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Reporting group description |
This group consisted of infants born to mothers (from Placebo Group - Mother) who received a single dose of placebo during pregnancy. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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End points reporting groups
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Reporting group title |
RSV MAT Group - Mother
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Reporting group description |
Maternal participants received a single dose of the RSV MAT vaccine administered at Day 1 in this study. | ||
Reporting group title |
Placebo Group - Mother
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Reporting group description |
Maternal participants received a single dose of placebo administered at Day 1 in this study. | ||
Reporting group title |
RSV MAT Group - Infant
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Reporting group description |
This group consisted of infants born to mothers (from RSV MAT Group - Mother) who received a single dose of RSV MAT vaccine during pregnancy. | ||
Reporting group title |
Placebo Group - Infant
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Reporting group description |
This group consisted of infants born to mothers (from Placebo Group - Mother) who received a single dose of placebo during pregnancy. | ||
Subject analysis set title |
RSV MAT Group
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Subject analysis set type |
Per protocol | ||
Subject analysis set description |
This group consisted of pairs of maternal participants from RSV MAT Group - Mother and infant participants from RSV MAT Group - Infant.
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Subject analysis set title |
Placebo Group
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Subject analysis set type |
Per protocol | ||
Subject analysis set description |
This group consisted of pairs of maternal participants from Placebo Group - Mother and infant participants from Placebo Group - Infant.
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End point title |
Number of infant participants with medically assessed, RSV-associated lower respiratory tract illnesses (LRTIs) of any severity and RSV-associated severe LRTIs from birth to Day 181 post-birth [1] [2] | |||||||||||||||
End point description |
An RSV-associated LRTI of any severity was characterized by a history of cough OR difficulty in breathing, AND a blood oxygen saturation by pulse oximetry (SpO2) lower than (<) 95%, OR respiratory rate increase AND a confirmed RSV infection. An RSV-associated severe LRTI met the case definition of RSV-LRTI AND was additionally characterized by a SpO2 <93%, OR lower chest wall in-drawing, OR inability to feed, OR failure to respond/unconscious. Medically assessed = the infant was evaluated by a healthcare professional for the LRTI.
The analysis was performed on the Modified Full Analysis - Efficacy set for infants, which included all infant participants in the Exposed set who were born after at least 4 weeks of their maternal participants vaccination.
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End point type |
Primary
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End point timeframe |
From birth to Day 181 post-birth
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Notes [1] - No statistical analyses have been specified for this primary end point. It is expected there is at least one statistical analysis for each primary end point. Justification: The analysis of the primary endpoint was descriptive i.e. no statistical hypothesis test was performed. [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 is only reporting values for the infant participants. |
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No statistical analyses for this end point |
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End point title |
Number of infant participants with at least one adverse event (AE) leading to study withdrawal from birth to Day 181 post-birth [3] [4] | |||||||||
End point description |
A participant was considered a ‘withdrawal’ from the study when no study procedure has occurred, no follow-up has been performed and no further information has been collected for this participant from the date of withdrawal/last contact. Participants who were withdrawn from the study because of AEs were clearly distinguished from participants who were withdrawn for other reasons. Investigators followed participants who were withdrawn from the study as a result of an AE until the event was resolved. At least one AE leading to study withdrawal = occurrence of at least one AE leading to study withdrawal regardless of intensity grade or relation to vaccination.
The analysis was performed on the Exposed Set for infants, which included the infants live-born to exposed maternal participants, whose parents/legally acceptable representative(s) (LARs) completed the informed consent process and signed the informed consent form.
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End point type |
Primary
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End point timeframe |
From birth to Day 181 post-birth
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Notes [3] - No statistical analyses have been specified for this primary end point. It is expected there is at least one statistical analysis for each primary end point. Justification: The analysis of the primary endpoint was descriptive i.e. no statistical hypothesis test was performed. [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 is only reporting values for the infant participants. |
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No statistical analyses for this end point |
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End point title |
Number of infant participants with at least one serious adverse event (SAE) from birth to Day 181 post-birth [5] [6] | |||||||||
End point description |
An SAE is defined as any untoward medical occurrence that resulted in death, was life-threatening, required hospitalization or prolongation of existing hospitalization, resulted in disability/incapacity, was a congenital anomaly/birth defect or resulted in other situations that were considered serious per medical or scientific judgment. At least one SAE = occurrence of at least one SAE regardless of intensity grade or relation to vaccination.
The analysis was performed on the Exposed Set for infants, which included the infants live-born to exposed maternal participants, whose parents/legally acceptable representative(s) (LARs) completed the informed consent process and signed the informed consent form.
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End point type |
Primary
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End point timeframe |
From birth to Day 181 post-birth
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Notes [5] - 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: The analysis of the primary endpoint was descriptive i.e. no statistical hypothesis test was performed. [6] - The end point is not reporting statistics for all the arms in the baseline period. It is expected all the baseline period arms will be reported on when providing values for an end point on the baseline period. Justification: This endpoint is only reporting values for the infant participants. |
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No statistical analyses for this end point |
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End point title |
Number of infant participants with at least one medically attended AE (MAE) from birth to Day 181 post-birth [7] [8] | |||||||||
End point description |
An MAE is defined as an unsolicited AE, such as a symptom or illness, which required hospitalization, or emergency room visit, or visit to/by a health care provider. At least one MAE = occurrence of at least one MAE regardless of intensity grade or relation to vaccination.
The analysis was performed on the Exposed Set for infants, which included the infants live-born to exposed maternal participants, whose parents/legally acceptable representative(s) (LARs) completed the informed consent process and signed the informed consent form.
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End point type |
Primary
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End point timeframe |
From birth to Day 181 post-birth
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Notes [7] - 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: The analysis of the primary endpoint was descriptive i.e. no statistical hypothesis test was performed. [8] - 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 is only reporting values for the infant participants. |
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No statistical analyses for this end point |
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End point title |
Number of infant participants with at least one SAE from birth to Day 366 post-birth [9] [10] | |||||||||
End point description |
An SAE is defined as any untoward medical occurrence that resulted in death, was life-threatening, required hospitalization or prolongation of existing hospitalization, resulted in disability/incapacity, was a congenital anomaly/birth defect or resulted in other situations that were considered serious per medical or scientific judgment. At least one SAE = occurrence of at least one SAE regardless of intensity grade or relation to vaccination.
The analysis was performed on the Exposed Set for infants, which included the infants live-born to exposed maternal participants, whose parents/LARs completed the informed consent process and signed the informed consent form.
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End point type |
Primary
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End point timeframe |
From birth to Day 366 post-birth
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Notes [9] - 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: The analysis of the primary endpoint was descriptive i.e. no statistical hypothesis test was performed. [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 is only reporting values for the infant participants. |
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No statistical analyses for this end point |
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End point title |
Number of infant participants with at least one AE leading to study withdrawal from birth to Day 366 post-birth [11] [12] | |||||||||
End point description |
A participant was considered a ‘withdrawal’ from the study when no study procedure has occurred, no follow-up has been performed and no further information has been collected for this participant from the date of withdrawal/last contact. Participants who were withdrawn from the study because of AEs were clearly distinguished from participants who were withdrawn for other reasons. Investigators followed participants who were withdrawn from the study as a result of an AE until the event was resolved. At least one AE leading to study withdrawal = occurrence of at least one AE leading to study withdrawal regardless of intensity grade or relation to vaccination.
The analysis was performed on the Exposed Set for infants, which included the infants live-born to exposed maternal participants, whose parents/LARs completed the informed consent process and signed the informed consent form.
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End point type |
Primary
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End point timeframe |
From birth to Day 366 post-birth
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Notes [11] - 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: The analysis of the primary endpoint was descriptive i.e. no statistical hypothesis test was performed. [12] - The end point is not reporting statistics for all the arms in the baseline period. It is expected all the baseline period arms will be reported on when providing values for an end point on the baseline period. Justification: This endpoint is only reporting values for the infant participants. |
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No statistical analyses for this end point |
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End point title |
Number of infant participants with at least one MAE from birth to Day 366 post-birth [13] [14] | |||||||||
End point description |
An MAE is defined as an unsolicited AE, such as a symptom or illness, which required hospitalization, or emergency room visit, or visit to/by a health care provider. At least one MAE = occurrence of at least one MAE regardless of intensity grade or relation to vaccination.
The analysis was performed on the Exposed Set for infants, which included the infants live-born to exposed maternal participants, whose parents/LARs completed the informed consent process and signed the informed consent form.
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End point type |
Primary
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End point timeframe |
From birth to Day 366 post-birth
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Notes [13] - No statistical analyses have been specified for this primary end point. It is expected there is at least one statistical analysis for each primary end point. Justification: The analysis of the primary endpoint was descriptive i.e. no statistical hypothesis test was performed. [14] - The end point is not reporting statistics for all the arms in the baseline period. It is expected all the baseline period arms will be reported on when providing values for an end point on the baseline period. Justification: This endpoint is only reporting values for the infant participants. |
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No statistical analyses for this end point |
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End point title |
Number of infant participants with RSV-associated hospitalizations from birth to Day 181 post-birth [15] | |||||||||
End point description |
RSV-associated hospitalization is defined as a confirmed RSV infection and hospitalized for acute medical condition. Hospitalization is defined as admission for observation or treatment based on the judgment of a health care provider.
The analysis was performed on the Modified Full Analysis - Efficacy set for infants, which included all infant participants in the Exposed Set who were born after at least 4 weeks of their maternal participants vaccination.
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End point type |
Secondary
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End point timeframe |
From birth to Day 181 post-birth
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Notes [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 is only reporting values for the infant participants. |
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No statistical analyses for this end point |
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End point title |
Number of infant participants with medically assessed, RSV-associated severe LRTIs for RSV subtype A and RSV subtype B separately from birth to Day 181 post-birth [16] | |||||||||||||||
End point description |
An RSV-associated LRTI of any severity was characterized by a history of cough OR difficulty in breathing, AND an SpO2 <95%, OR respiratory rate increase AND a confirmed RSV infection. An RSV-associated severe LRTI met the case definition of RSV-LRTI AND was additionally characterized by an SpO2 <93%, OR lower chest wall in-drawing, OR inability to feed, OR failure to respond/unconscious. Medically assessed = the infant was evaluated by a healthcare professional for the LRTI. The RSV subtypes assessed for this analysis were RSV subtype A and RSV subtype B.
The analysis was performed on the Modified Full Analysis - Efficacy set for infants which included all the infant participants in the Exposed Set who were born after at least 4 weeks of their maternal participants vaccination.
|
|||||||||||||||
End point type |
Secondary
|
|||||||||||||||
End point timeframe |
From birth to Day 181 post-birth
|
|||||||||||||||
Notes [16] - The end point is not reporting statistics for all the arms in the baseline period. It is expected all the baseline period arms will be reported on when providing values for an end point on the baseline period. Justification: This endpoint is only reporting values for the infant participants. |
||||||||||||||||
|
||||||||||||||||
No statistical analyses for this end point |
|
||||||||||
End point title |
Number of infant participants with medically assessed, RSV-associated LRTIs of any severity from birth to Day 366 post-birth [17] | |||||||||
End point description |
An RSV-associated LRTI of any severity was characterized by a history of cough OR difficulty in breathing, AND an SpO2 <95%, OR respiratory rate increase AND a confirmed RSV infection. Medically assessed = the infant was evaluated by a healthcare professional for the LRTI.
The analysis was performed on the Modified Full Analysis - Efficacy set for infants, which included all infant participants in the Exposed Set who were born after at least 4 weeks of their maternal participants vaccination.
|
|||||||||
End point type |
Secondary
|
|||||||||
End point timeframe |
From birth to Day 366 post-birth
|
|||||||||
Notes [17] - The end point is not reporting statistics for all the arms in the baseline period. It is expected all the baseline period arms will be reported on when providing values for an end point on the baseline period. Justification: This endpoint is only reporting values for the infant participants. |
||||||||||
|
||||||||||
No statistical analyses for this end point |
|
||||||||||
End point title |
Number of infant participants with all-cause LRTIs from birth to Day 181 post-birth [18] | |||||||||
End point description |
All-cause LRTI was characterized by history of cough OR difficulty in breathing, AND SpO2 < 95%, OR respiratory rate increase.
The analysis was performed on the Modified Full Analysis - Efficacy set for infants, which included all the infant participants in the Exposed Set who were born after at least 4 weeks of their maternal participants vaccination.
|
|||||||||
End point type |
Secondary
|
|||||||||
End point timeframe |
From birth to Day 181 post-birth
|
|||||||||
Notes [18] - 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 is only reporting values for the infant participants. |
||||||||||
|
||||||||||
No statistical analyses for this end point |
|
||||||||||
End point title |
Number of infant participants with all-cause LRTIs with hospitalization from birth to Day 181 post-birth [19] | |||||||||
End point description |
All-cause LRTI was characterized by history of cough OR difficulty in breathing, AND SpO2 < 95%, OR respiratory rate increase. Hospitalization is defined as admission for observation or treatment based on the judgment of a health care provider.
The analysis was performed on the Modified Full Analysis - Efficacy set for infants, which included all infant participants in the Exposed Set who were born after at least 4 weeks of their maternal participants vaccination.
|
|||||||||
End point type |
Secondary
|
|||||||||
End point timeframe |
From birth to Day 181 post-birth
|
|||||||||
Notes [19] - The end point is not reporting statistics for all the arms in the baseline period. It is expected all the baseline period arms will be reported on when providing values for an end point on the baseline period. Justification: This endpoint is only reporting values for the infant participants. |
||||||||||
|
||||||||||
No statistical analyses for this end point |
|
||||||||||
End point title |
Number of infant participants with medically assessed, RSV-associated severe LRTIs from birth to Day 366 post-birth [20] | |||||||||
End point description |
An RSV-associated LRTI of any severity was characterized by a history of cough OR difficulty in breathing, AND an SpO2 <95%, OR respiratory rate increase AND a confirmed RSV infection. An RSV-associated severe LRTI met the case definition of RSV-LRTI AND was additionally characterized by an SpO2 <93%, OR lower chest wall in-drawing, OR inability to feed, OR failure to respond/unconscious. Medically assessed = the infant was evaluated by a healthcare professional for the LRTI.
The analysis was performed on the Modified Full Analysis - Efficacy set for infants, which included all infant participants in the Exposed Set who were born after at least 4 weeks of their maternal participants vaccination.
|
|||||||||
End point type |
Secondary
|
|||||||||
End point timeframe |
From birth to Day 366 post-birth
|
|||||||||
Notes [20] - 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 is only reporting values for the infant participants. |
||||||||||
|
||||||||||
No statistical analyses for this end point |
|
||||||||||||||||
End point title |
Number of infant participants with medically assessed, RSV-associated LRTIs of any severity for RSV subtype A and RSV subtype B separately from birth to Day 181 post-birth [21] | |||||||||||||||
End point description |
An RSV-associated LRTI of any severity was characterized by a history of cough OR difficulty in breathing, AND an SpO2 <95%, OR respiratory rate increase AND a confirmed RSV infection. Medically assessed = the infant was evaluated by a healthcare professional for the LRTI. The RSV subtypes assessed for this analysis were RSV subtype A and RSV subtype B.
The analysis was performed on the Modified Full Analysis - Efficacy set for infants, which included all infant participants in the Exposed Set who were born after at least 4 weeks of their maternal participants vaccination.
|
|||||||||||||||
End point type |
Secondary
|
|||||||||||||||
End point timeframe |
From birth to Day 181 post-birth
|
|||||||||||||||
Notes [21] - The end point is not reporting statistics for all the arms in the baseline period. It is expected all the baseline period arms will be reported on when providing values for an end point on the baseline period. Justification: This endpoint is only reporting values for the infant participants. |
||||||||||||||||
|
||||||||||||||||
No statistical analyses for this end point |
|
||||||||||
End point title |
Number of infant participants with medically assessed, RSV-associated severe LRTIs from birth to Day 121 post-birth [22] | |||||||||
End point description |
An RSV-associated LRTI of any severity was characterized by a history of cough OR difficulty in breathing, AND an SpO2 <95%, OR respiratory rate increase AND a confirmed RSV infection. An RSV-associated severe LRTI met the case definition of RSV-LRTI AND was additionally characterized by an SpO2 <93%, OR lower chest wall in-drawing, OR inability to feed, OR failure to respond/unconscious. Medically assessed = the infant was evaluated by a healthcare professional for the LRTI.
The analysis was performed on the Modified Full Analysis - Efficacy set for infants, which included all infant participants in the Exposed Set who were born after at least 4 weeks of their maternal participants vaccination.
|
|||||||||
End point type |
Secondary
|
|||||||||
End point timeframe |
From birth to Day 121 post-birth
|
|||||||||
Notes [22] - 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 is only reporting values for the infant participants. |
||||||||||
|
||||||||||
No statistical analyses for this end point |
|
||||||||||
End point title |
Number of infant participants with medically assessed, RSV-associated LRTIs of any severity from birth to Day 121 post-birth [23] | |||||||||
End point description |
An RSV-associated LRTI of any severity was characterized by a history of cough OR difficulty in breathing, AND an SpO2 <95%, OR respiratory rate increase AND a confirmed RSV infection. Medically assessed = the infant was evaluated by a healthcare professional for the LRTI.
The analysis was performed on the Modified Full Analysis - Efficacy set for infants, which included all infant participants in the Exposed Set who were born after at least 4 weeks of their maternal participants vaccination.
|
|||||||||
End point type |
Secondary
|
|||||||||
End point timeframe |
From birth to Day 121 post-birth
|
|||||||||
Notes [23] - The end point is not reporting statistics for all the arms in the baseline period. It is expected all the baseline period arms will be reported on when providing values for an end point on the baseline period. Justification: This endpoint is only reporting values for the infant participants. |
||||||||||
|
||||||||||
No statistical analyses for this end point |
|
||||||||||
End point title |
Number of infant participants with all-cause pneumonia from birth to Day 181 post-birth [24] | |||||||||
End point description |
The number of infant participants with all-cause pneumonia is presented in this outcome measure.
The analysis was performed on the Modified Full Analysis - Efficacy set for infants, which included all infant participants in the Exposed Set who were born after at least 4 weeks of their maternal participants vaccination.
|
|||||||||
End point type |
Secondary
|
|||||||||
End point timeframe |
From birth to Day 181 post-birth
|
|||||||||
Notes [24] - 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 is only reporting values for the infant participants. |
||||||||||
|
||||||||||
No statistical analyses for this end point |
|
||||||||||
End point title |
Number of infant participants with RSV-associated hospitalizations from birth to Day 366 post-birth [25] | |||||||||
End point description |
RSV-associated hospitalization is defined as a confirmed RSV infection and hospitalized for acute medical condition. Hospitalization is defined as admission for observation or treatment based on the judgment of a health care provider.
The analysis was performed on the Modified Full Analysis - Efficacy set for infants, which included all infant participants in the Exposed Set who were born after at least 4 weeks of their maternal participants vaccination.
|
|||||||||
End point type |
Secondary
|
|||||||||
End point timeframe |
From birth to Day 366 post-birth
|
|||||||||
Notes [25] - The end point is not reporting statistics for all the arms in the baseline period. It is expected all the baseline period arms will be reported on when providing values for an end point on the baseline period. Justification: This endpoint is only reporting values for the infant participants. |
||||||||||
|
||||||||||
No statistical analyses for this end point |
|
||||||||||
End point title |
Number of maternal participants with RSV-associated medically attended RTIs (RSV-MA-RTIs) from study intervention administration (Day 1) to Day 181 post-delivery [26] | |||||||||
End point description |
RSV-associated MA-RTI is defined as a medically attended visit for RTI symptoms and confirmed RSV infection.
The analysis was performed on the Exposed Set for maternal participants, which included all maternal participants who received the study intervention.
|
|||||||||
End point type |
Secondary
|
|||||||||
End point timeframe |
From study intervention administration (Day 1) to Day 181 post-delivery
|
|||||||||
Notes [26] - The end point is not reporting statistics for all the arms in the baseline period. It is expected all the baseline period arms will be reported on when providing values for an end point on the baseline period. Justification: This endpoint is only reporting values for the maternal participants. |
||||||||||
|
||||||||||
No statistical analyses for this end point |
|
||||||||||||||||||||||
End point title |
RSV-A neutralizing antibody titers for maternal participants at Day 1, at Day 31 and at delivery [27] | |||||||||||||||||||||
End point description |
RSV-A neutralizing titers were determined by neutralization assay and expressed as geometric mean titers (GMTs).
The analysis was performed on the Per Protocol - Immunogenicity set for maternal participants, which included all maternal participants who received the study intervention to which they were randomized and had post-vaccination immunogenicity data available for the specified analysis at each of the specified time points (i.e. Day 1, Day 31, delivery) minus those participants with protocol deviations that led to exclusion.
|
|||||||||||||||||||||
End point type |
Secondary
|
|||||||||||||||||||||
End point timeframe |
At Day 1 (before study intervention administration), at Day 31 and at delivery
|
|||||||||||||||||||||
Notes [27] - The end point is not reporting statistics for all the arms in the baseline period. It is expected all the baseline period arms will be reported on when providing values for an end point on the baseline period. Justification: This endpoint is only reporting values for the maternal participants. |
||||||||||||||||||||||
|
||||||||||||||||||||||
No statistical analyses for this end point |
|
|||||||||||||
End point title |
RSV-A neutralizing antibody titers for infant participants at delivery or within 72 hours after birth [28] | ||||||||||||
End point description |
RSV-A neutralizing titers were determined by neutralization assay and expressed as GMTs. The titers were measured on the cord blood sample collected at delivery, or on a blood sample collected from the infant within 72 hours after birth (if no cord blood sample could be obtained).
The analysis was performed on the Per Protocol - Immunogenicity set for infants, which included all infant participants in the Exposed set who had post-delivery/birth immunogenicity data available for the specified analysis at the specified time points (i.e. at delivery or within 72 hours after birth), minus those who (a) were born less than 4 weeks post- maternal participant vaccination and/ or (b) had protocol deviations that led to exclusion.
|
||||||||||||
End point type |
Secondary
|
||||||||||||
End point timeframe |
At delivery or within 72 hours after birth
|
||||||||||||
Notes [28] - The end point is not reporting statistics for all the arms in the baseline period. It is expected all the baseline period arms will be reported on when providing values for an end point on the baseline period. Justification: This endpoint is only reporting values for the infant participants. |
|||||||||||||
|
|||||||||||||
No statistical analyses for this end point |
|
|||||||||||||
End point title |
RSV-A neutralizing antibody titers for infant participants at Day 43 post-birth [29] | ||||||||||||
End point description |
RSV-A neutralizing titers were determined by neutralization assay and expressed as GMTs.
The analysis was performed on a sub-cohort from the Per Protocol - Immunogenicity set for infants, which included the infant participants for whom blood samples were collected for the specified analysis at Day 43 post-birth.
|
||||||||||||
End point type |
Secondary
|
||||||||||||
End point timeframe |
At Day 43 post-birth
|
||||||||||||
Notes [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 is only reporting values for the infant participants. |
|||||||||||||
|
|||||||||||||
No statistical analyses for this end point |
|
|||||||||||||
End point title |
RSV MAT immunoglobulin G (IgG)-specific antibody concentrations for maternal participants at delivery [30] | ||||||||||||
End point description |
RSV MAT IgG-specific antibody concentrations were determined by enzyme-linked immunosorbent assay (ELISA) and expressed as geometric mean concentrations (GMCs) in ELISA units per milliliter (ELU/mL).
The analysis was performed on the Per Protocol - Immunogenicity set for maternal participants, which included all maternal participants who received the study intervention to which they were randomized and had post-vaccination immunogenicity data available for the specified analysis at the specified time point (i.e. delivery) minus those participants with protocol deviations that led to exclusion.
|
||||||||||||
End point type |
Secondary
|
||||||||||||
End point timeframe |
At delivery
|
||||||||||||
Notes [30] - The end point is not reporting statistics for all the arms in the baseline period. It is expected all the baseline period arms will be reported on when providing values for an end point on the baseline period. Justification: This endpoint is only reporting values for the maternal participants. |
|||||||||||||
|
|||||||||||||
No statistical analyses for this end point |
|
|||||||||||||
End point title |
RSV-A neutralizing antibody titers for infant participants at Day 121 post-birth [31] | ||||||||||||
End point description |
RSV-A neutralizing titers were determined by neutralization assay and expressed as GMTs.
The analysis was performed on a sub-cohort from the Per Protocol - Immunogenicity set for infants, which included the infant participants for whom blood samples were collected for the specified analysis at Day 121 post-birth.
|
||||||||||||
End point type |
Secondary
|
||||||||||||
End point timeframe |
At Day 121 post-birth
|
||||||||||||
Notes [31] - The end point is not reporting statistics for all the arms in the baseline period. It is expected all the baseline period arms will be reported on when providing values for an end point on the baseline period. Justification: This endpoint is only reporting values for the infant participants. |
|||||||||||||
|
|||||||||||||
No statistical analyses for this end point |
|
|||||||||||||
End point title |
RSV-A neutralizing antibody titers for infant participants at Day 181 post-birth [32] | ||||||||||||
End point description |
RSV-A neutralizing titers were determined by neutralization assay and expressed as GMTs.
The analysis was performed on a sub-cohort from the Per Protocol - Immunogenicity set for infants, which included the infant participants for whom blood samples were collected for the specified analysis at Day 181 post-birth.
|
||||||||||||
End point type |
Secondary
|
||||||||||||
End point timeframe |
At Day 181 post-birth
|
||||||||||||
Notes [32] - 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 is only reporting values for the infant participants. |
|||||||||||||
|
|||||||||||||
No statistical analyses for this end point |
|
|||||||||||||||||||
End point title |
Number of maternal participants with any solicited administration site events from Day 1 to Day 7 included [33] | ||||||||||||||||||
End point description |
Assessed solicited administration site events included erythema, pain and swelling at the injection site. Any pain = occurrence of the symptom regardless of intensity grade. Any erythema and swelling = symptom reported with a surface diameter greater than or equal to 20 millimeters.
The analysis was performed on the Solicited Safety set for maternal participants, which included all maternal participants who received the study intervention and who had solicited safety data available during the specified period (i.e. from Day 1 to Day 7 included).
|
||||||||||||||||||
End point type |
Secondary
|
||||||||||||||||||
End point timeframe |
From Day 1 to Day 7 included
|
||||||||||||||||||
Notes [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 is only reporting values for the maternal participants. |
|||||||||||||||||||
|
|||||||||||||||||||
No statistical analyses for this end point |
|
|||||||||||||
End point title |
Geometric mean ratio (GMR) between cord blood and maternal RSV MAT immunoglobulin G (IgG)-specific antibody concentrations | ||||||||||||
End point description |
The placental transfer ratio of RSV-MAT IgG-specific antibody concentration was determined from cord blood over that of the blood sample from mother at delivery. If no cord blood could be obtained, an infant blood sample was collected 72 hours after birth.
The analysis was performed on all pairs of maternal participants (from Per Protocol - Immunogenicity set for maternal participants) and their infants (from Per Protocol -Immunogenicity set for infants) with available results for this outcome measure at the specified time points.
|
||||||||||||
End point type |
Secondary
|
||||||||||||
End point timeframe |
At delivery (for maternal participants) or within 72 hours after birth (for infant participants, only if no cord blood could be obtained)
|
||||||||||||
|
|||||||||||||
No statistical analyses for this end point |
|
|||||||||||||
End point title |
RSV MAT IgG-specific antibody concentrations for infant participants at delivery or within 72 hours after birth [34] | ||||||||||||
End point description |
RSV MAT IgG-specific antibody concentrations were determined by ELISA and expressed as GMCs in ELU/mL. The antibody concentrations were measured on the cord blood sample collected at delivery, or on a blood sample collected from the infant within 72 hours after birth (only if no cord blood sample could be obtained at delivery).
The analysis was performed on the Per Protocol -Immunogenicity set for infants, which included all infant participants in the Exposed set who had post-delivery/birth immunogenicity data available for the specified analysis at the specified time points (i.e. at delivery or within 72 hours after birth), minus those who (a) were born less than 4 weeks post-maternal participant vaccination and/ or (b) had protocol deviations that led to exclusion.
|
||||||||||||
End point type |
Secondary
|
||||||||||||
End point timeframe |
At delivery or within 72 hours after birth (only if no cord blood sample could be obtained at delivery)
|
||||||||||||
Notes [34] - 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 is only reporting values for the infant participants. |
|||||||||||||
|
|||||||||||||
No statistical analyses for this end point |
|
|||||||||||||||||||||||||||||||
End point title |
Number of maternal participants with any solicited systemic events from Day 1 to Day 7 included [35] | ||||||||||||||||||||||||||||||
End point description |
Assessed solicited systemic events included abdominal pain, diarrhea, fatigue, headache, nausea, fever [temperature equal to or above (>=) 38 degrees Celsius (°C)/100.4 degrees Fahrenheit (°F), regardless of the location of measurement] and vomiting. Any = occurrence of the adverse event regardless of intensity grade or relation to study vaccination.
The analysis was performed on the Solicited Safety set for maternal participants, which included all maternal participants who received the study intervention and who had solicited safety data available during the specified period (i.e. from Day 1 to Day 7 included).
|
||||||||||||||||||||||||||||||
End point type |
Secondary
|
||||||||||||||||||||||||||||||
End point timeframe |
From Day 1 to Day 7 included
|
||||||||||||||||||||||||||||||
Notes [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 is only reporting values for the maternal participants. |
|||||||||||||||||||||||||||||||
|
|||||||||||||||||||||||||||||||
No statistical analyses for this end point |
|
||||||||||
End point title |
Number of maternal participants with any unsolicited AEs from Day 1 to Day 30 included [36] | |||||||||
End point description |
An unsolicited AE is defined as any AE reported in addition to those solicited during the clinical study. Also, any 'solicited' symptom with onset outside the specified period of follow-up for solicited symptoms was reported as an unsolicited AE. Any = occurrence of any unsolicited AE regardless of intensity grade or relation to vaccination.
The analysis was performed on the Exposed Set for maternal participants, which included all maternal participants who received the study intervention.
|
|||||||||
End point type |
Secondary
|
|||||||||
End point timeframe |
From Day 1 to Day 30 included
|
|||||||||
Notes [36] - 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 is only reporting values for the maternal participants. |
||||||||||
|
||||||||||
No statistical analyses for this end point |
|
||||||||||
End point title |
Number of maternal participants with at least one SAE from Day 1 to Day 181 post-delivery [37] | |||||||||
End point description |
An SAE is defined as any untoward medical occurrence that resulted in death, was life-threatening, required hospitalization or prolongation of existing hospitalization, resulted in disability/incapacity, was a congenital anomaly/birth defect in the offspring of a study participant or resulted in abnormal pregnancy outcomes or in other situations that were considered serious per medical or scientific judgment. At least one SAE = occurrence of at least one SAE regardless of intensity grade or relation to vaccination.
The analysis was performed on the Exposed Set for maternal participants, which included all maternal participants who received the study intervention.
|
|||||||||
End point type |
Secondary
|
|||||||||
End point timeframe |
From Day 1 to Day 181 post-delivery
|
|||||||||
Notes [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 is only reporting values for the maternal participants. |
||||||||||
|
||||||||||
No statistical analyses for this end point |
|
||||||||||
End point title |
Number of maternal participants with at least one AE leading to study withdrawal from Day 1 to Day 181 post-delivery [38] | |||||||||
End point description |
A participant was considered a ‘withdrawal’ from the study when no study procedure has occurred, no follow-up has been performed and no further information has been collected for this participant from the date of withdrawal/last contact. Participants who were withdrawn from the study because of AEs were clearly distinguished from participants who were withdrawn for other reasons. Investigators followed participants who were withdrawn from the study as a result of an AE until the event was resolved. At least one AE leading to study withdrawal = occurrence of at least one AE leading to study withdrawal regardless of intensity grade or relation to vaccination.
The analysis was performed on the Exposed Set for maternal participants, which included all maternal participants who received the study intervention.
|
|||||||||
End point type |
Secondary
|
|||||||||
End point timeframe |
From Day 1 to Day 181 post-delivery
|
|||||||||
Notes [38] - 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 is only reporting values for the maternal participants. |
||||||||||
|
||||||||||
No statistical analyses for this end point |
|
||||||||||
End point title |
Number of maternal participants with at least one all-cause MA-RTI from Day 1 to Day 181 post-delivery [39] | |||||||||
End point description |
All-cause MA-RTI occurred when the maternal participant visited a healthcare professional (e.g., a General Practitioner) for any respiratory symptom, including (but not limited to) cough, sore throat, sputum production and difficulty breathing. At least one all-cause MA-RTI = occurrence of at least one all-cause MA-RTI regardless of intensity grade or relation to vaccination.
The analysis was performed on the Exposed Set for maternal participants, which included all maternal participants who received the study intervention.
|
|||||||||
End point type |
Secondary
|
|||||||||
End point timeframe |
From Day 1 to Day 181 post-delivery
|
|||||||||
Notes [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 is only reporting values for the maternal participants. |
||||||||||
|
||||||||||
No statistical analyses for this end point |
|
||||||||||||||||||||||||||||
End point title |
Number of maternal participants with pregnancy outcomes from Day 1 to Day 42 post-delivery [40] | |||||||||||||||||||||||||||
End point description |
Assessed pregnancy outcomes included live birth (LB) with no congenital anomalies, live birth (LB) with minor congenital anomaly(ies), live birth (LB) with at least 1 major congenital anomaly, fetal death (FD)/still birth (SB) with no congenital anomalies, fetal death (FD)/still birth (SB) with at least 1 major congenital anomaly and unknown outcome (includes participants withdrawn before/at delivery with no available data of pregnancy outcomes).
The analysis was performed on the Exposed Set for maternal participants, which included all maternal participants who received the study intervention.
|
|||||||||||||||||||||||||||
End point type |
Secondary
|
|||||||||||||||||||||||||||
End point timeframe |
From Day 1 to Day 42 post-delivery, an average of 2 months
|
|||||||||||||||||||||||||||
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 is only reporting values for the maternal participants. |
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No statistical analyses for this end point |
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End point title |
Number of maternal participants with at least one MAE from Day 1 to Day 42 post-delivery [41] | |||||||||
End point description |
An MAE is defined as an unsolicited AE, such as a symptom or illness, which required hospitalization, or emergency room visit, or visit to/by a health care provider. At least one MAE = occurrence of at least one MAE regardless of intensity grade or relation to vaccination.
The analysis was performed on the Exposed Set for maternal participants, which included all maternal participants who received the study intervention.
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End point type |
Secondary
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End point timeframe |
From Day 1 to Day 42 post-delivery, an average of 2 months
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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 is only reporting values for the maternal participants. |
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No statistical analyses for this end point |
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End point title |
Number of maternal participants with pregnancy-related adverse events of special interest (AESIs) from Day 1 to Day 42 post-delivery [42] | |||||||||||||||||||||||||||||||||||||||
End point description |
Pregnancy-related AESIs included chorioamnionitis, fetal growth restriction, gestational diabetes mellitus, gestational hypertension, pre-eclampsia, pre-eclampsia with severe features including eclampsia, maternal death, premature preterm rupture of membranes, preterm labor, provider-initiated preterm birth.
The analysis was performed on the Exposed Set for maternal participants, which included all maternal participants who received the study intervention.
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End point type |
Secondary
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End point timeframe |
From Day 1 to Day 42 post-delivery, an average of 2 months
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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 is only reporting values for the maternal participants. |
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No statistical analyses for this end point |
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End point title |
Number of infant participants with neonatal AESIs from birth to Day 42 post-birth [43] | ||||||||||||||||||||||||||||||||||||||||||
End point description |
Neonatal/infant AESIs included congenital anomalies (CAs) with functional defects, congenital anomalies (CAs) with internal structural defects, congenital anomalies (CAs) with major external structural defects, extremely low birth weight (<1000 grams), low birth weight (<2500 grams), very low birth weight (<1500 grams), neonatal death in a preterm live birth (gestational age >=28 and <37 weeks), neonatal death in a term live birth (>=37 weeks of gestational age), neonatal death in an extremely pre-term birth (gestational age >=22 and <28 weeks), preterm birth (<37 weeks of gestational age), small for gestational age.
The analysis was performed on the Exposed Set for infants, which included infants live-born to exposed maternal participants, whose parents/LARs completed the informed consent process and signed the informed consent form.
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End point type |
Secondary
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End point timeframe |
From birth to Day 42 post-birth, an average of 2 months
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Notes [43] - 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 is only reporting values for the infant participants. |
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No statistical analyses for this end point |
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Adverse events information
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Timeframe for reporting adverse events |
Mothers: Solicited AEs: Day (D)1-D7&Unsolicited AEs:D1-D30 post-vaccination. AESIs&MAEs:D1-D42, deaths,(S)AEs leading to withdrawal,SAEs:D1-D181 post-delivery.
Infants: AESIs: birth-D42, deaths,SAEs,(S)AEs leading to withdrawal,MAEs:birth-D366 post-birth.
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Adverse event reporting additional description |
All events presented in the SAEs & Non SAEs modules are reported for the Exposed set for maternal participants & Exposed set for infants during the specified timeframe.
The solicited events presented for the RSV MAT Group – Mother & Placebo Group – Mother in the End Points module are reported for the Solicited safety set for maternal participants.
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Assessment type |
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 |
RSV MAT Group - Mother
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Reporting group description |
Maternal participants randomized to the RSV MAT Group received a single dose of the RSV MAT vaccine administered, between 24 to 34 weeks of gestation at Day 1 in this study. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Reporting group title |
Placebo Group - Infant
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Reporting group description |
This group consisted of infants born to mothers (from Placebo Group - Mother) who received a single dose of placebo during pregnancy. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Reporting group title |
RSV MAT Group - Infant
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Reporting group description |
This group consisted of infants born to mothers (from RSV MAT Group - Mother) who received a single dose of RSV MAT vaccine during pregnancy. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Reporting group title |
Placebo Group - Mother
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Reporting group description |
Maternal participants randomized to the Placebo Group received a single dose of placebo administered, between 24 to 34 weeks of gestation, at Day 1 in this study. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Frequency threshold for reporting non-serious adverse events: 0% | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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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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05 Oct 2020 |
The following points have been amended: Case definitions for lower respiratory tract illness have been modified to include the phrase “medically assessed." In addition, the success criteria for the primary objective on any RSV-associated lower respiratory tract infection has been changed. Previously the lower bound of this primary endpoint was 10%; it has been increased to 20%. The timing of interim analyses have been modified to make overall interim analyses operationally pragmatic. In addition, the corresponding study design operational characteristics have been updated. |
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23 Jun 2021 |
This protocol has been amended to:
• implement the changes discussed and agreed with Center for Biologics Evaluation and Research (CBER).
• extend the infant respiratory tract illness (RTI) surveillance to 12 months to ensure that this period will cover at least 1 full RSV season.
• remove the collection of hematocrit samples due to challenges (mostly due to the COVID-19 pandemic) faced in several countries preventing the samples from reaching the central lab in adequate time for testing.
• define an additional population for analysis: Modified Full Analysis - Efficacy Set. |
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10 Feb 2022 |
This protocol has been amended to:
• change the trigger point for interim analyses which could lead to claim vaccine efficacy (2, 3 and 4) as there is a high chance of claiming vaccine efficacy (VE) earlier than initially anticipated.
• add 2 new secondary descriptive efficacy objectives to assess VE against severe medically assessed LRTIs and any medically assessed LRTIs associated to RSV subtypes A and B separately in the infant participants from birth up to 6 months of age.
• acquire further information on how the VE can be sustained up to 12 months post-birth.
• remove the distribution of antibody titers/concentrations and the scatter plots showing the individual post-vaccination versus pre-vaccination results as well as scatter plots showing relationship between maternal and infants antibody titers. These analyses have already been described as part of previous completed RSV MAT studies and performing them in RSV MAT-009 (i.e. a larger sample size), is not expected to provide any additional critical information with regards to the study vaccine immunogenicity.
• remove the section about predicted VE based on surrogate endpoint due to the limitation of data from internal epidemiological studies. Hence, the surrogate endpoint model cannot be robustly established and validated. |
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15 Mar 2022 |
Following a recommendation from the Independent Data Monitoring Committee of NCT04605159 (RSV MAT 009), GSK made the decision to stop enrolment and vaccination in the study. Ongoing study participants at that time continued to be monitored as part of the study. The Protocol was updated to reflect the change to study’s safety assessment plan. |
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23 Feb 2023 |
The following points have been amended:
• The Benefit/Risk assessment has been updated to clarify the status of the safety signals after GSK’s signal validation process.
• The objectives and outcome measures section was updated.
• RSV IgG antibody concentrations would be assessed only in maternal blood samples collected at delivery and cord blood* [ *or an infant blood sample collected within 72 hours after birth (if no cord blood sample can be obtained)].
• RSV-B neutralizing antibody titers were removed from the secondary immunogenicity analysis.
• Populations for analysis were updated to reflect the changes to the statistical analysis plan of the study, following the of decision to stop further enrolment and vaccination.
• Country-specific requirements have been added for Spain and Argentina. |
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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. | |||
None reported |