Approval Probability 71%
TA Base Rate26%
Adjusted LOA41%
ML RiskLOW_RISK
| NCT ID | Title | Phase | Status | Enrollment | Velocity | Design | Start | Completion | Last Updated | Sites | Countries |
|---|---|---|---|---|---|---|---|---|---|---|---|
| NCT05705440 | A Follow-up Study to Describe the Safety of Study Participants Who Received RSVPreF3 Maternal Vaccination (Any Dose) or Controls From Previous RSV MAT Studies During Any Pregnancy Conceived Post Vaccination/Control | PHASE3 | COMPLETED | 3,855 | — | — | Feb 7, 2023 | Jan 15, 2025 | Mar 17, 2026 | 138 | United States, Argentina +21 |
| NCT05045144 | A Phase III Study to Assess the Lot-to-lot Consistency of GSK's Investigational RSV Maternal Vaccine and the Immune Response and Safety of RSV Maternal Vaccine When Given Alone or Co-administered With GSK's Influenza D-QIV Vaccine in Healthy Non-pregnant Women. | PHASE3 | COMPLETED | 1,586 | — | — | Oct 26, 2021 | Jun 6, 2022 | Oct 5, 2023 | 36 | United States, Canada +3 |
| NCT04138056 | A Study of a Vaccine Against Respiratory Syncytial Virus (RSV) When Given Alone and Together With a Vaccine Against Diphtheria, Pertussis and Tetanus (Tdap) Viruses Followed by a 2nd Dose of the RSV Vaccine to Healthy Non-Pregnant Women | PHASE2 | COMPLETED | 509 | — | — | Nov 5, 2019 | Nov 22, 2021 | Aug 21, 2024 | 8 | United States, Belgium +1 |
Assessed pregnancy outcomes were live infant with no apparent congenital anomaly; spontaneous abortion with no apparent congenital anomaly; ectopic pregnancy; elective termination with no apparent congenital anomaly; live infant with congenital anomaly, and stillbirth with congenital anomaly. Due to the character limit, further description is added here instead of Analysis population description field: 1 participant in the Control group - Mother was excluded from this outcome's analysis as the gestational age was not provided and hence conception date, which is required for this outcome measure, could not be calculated.
Assessed pregnancy-related AESIs were chorioamnionitis, fetal growth restriction, gestational diabetes mellitus, gestational hypertension, pre-eclampsia, pre-eclampsia with severe features including eclampsia, premature preterm ruptures of membranes, preterm labor and provider-initiated preterm birth. Due to the character limit, further description is added here instead of Analysis population description field: 1 participant in the Control group - Mother was excluded from this outcome's analysis as the gestational age was not provided and hence conception date, which is required for this outcome measure, could not be calculated.
Assessed AESIs were congenital anomalies with internal structural defects, congenital anomalies with major external structural defects, low birth weight \[greater than or equal to (\>=) 1500 grams (G) and below (\<) 2500 G\], very low birth weight (\>=1000 G and \<1500 G), neonatal death in a term live birth (\>=37 weeks of gestational age), preterm birth (\<37 weeks of gestational age) and small for gestational age.
Assessed solicited administration site events include pain, erythema and swelling. This objective analyzed the safety and reactogenicity of RSV MAT vaccine when given alone (pooled lots) or co-administered with Flu D-QIV. As pre-specified in protocol, data reported in this outcome measure was presented for the pooled RSV and RSV+Flu groups and Flu+Placebo Group, since minimal differences were expected between participants who received different RSV lots of the vaccine.
Assessed solicited systemic events include fatigue, headache, gastrointestinal (GI) symptoms (nausea, vomiting, diarrhea, abdominal pain) and fever. The preferred location for measuring temperature was the oral cavity. Fever was defined as temperature equal to or above (≥) 38.0 °C/ 100.4°F. This objective analyzed the safety and reactogenicity of RSV MAT vaccine when given alone (pooled lots) or co-administered with Flu D-QIV. As pre-specified in protocol, data reported in this outcome measure was presented for the pooled RSV and RSV+Flu groups and Flu+Placebo Group, since minimal differences were expected between participants who received different RSV lots of the vaccine.
An unsolicited AE is 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 is reported as an unsolicited adverse event. This objective analyzed the safety and reactogenicity of RSV MAT vaccine when given alone (pooled lots) or co-administered with Flu D-QIV. As pre-specified in protocol, data reported in this outcome measure was presented for the pooled RSV and RSV+Flu groups and Flu+Placebo Group, since minimal differences were expected between participants who received different RSV lots of the vaccine.
An SAE is any untoward medical occurrence that results in death, is life-threatening, requires hospitalization or prolongation of existing hospitalization, results in disability/incapacity, is a congenital anomaly/birth defect in the offspring of a study participant or results i+F2n abnormal pregnancy outcomes. This objective analyzed the safety and reactogenicity of RSV MAT vaccine when given alone (pooled lots) or co-administered with Flu D-QIV. As pre-specified in protocol, data reported in this outcome measure was presented for the pooled RSV and RSV+Flu groups and Flu+Placebo Group, since minimal differences were expected between participants who received different RSV lots of the vaccine.
An SAE is any untoward medical occurrence that results in death, is life-threatening, requires hospitalization or prolongation of existing hospitalization, results in disability/incapacity, is a congenital anomaly/birth defect in the offspring of a study participant or results in abnormal pregnancy outcomes.This objective analyzed the safety and reactogenicity of RSV MAT vaccine when given alone (pooled lots) or co-administered with Flu D-QIV. As pre-specified in protocol, data reported in this outcome measure was presented for the pooled RSV and RSV+Flu groups and Flu+Placebo Group, since minimal differences were expected between participants who received different RSV lots of the vaccine.
Serological assays for the determination of IgG antibodies against RSV MAT were performed by ELISA. RSV MAT IgG concentrations were expressed as geometric mean concentrations (GMCs), in ELISA units per milliliter (EU/mL). As pre-specified in protocol, data reported in this outcome measure was presented only for individual RSV lot groups (RSV lot1, RSV lot2, RSV lot3), as the purpose was to analyze RSV MAT IgG ELISA concentrations, in order to demonstrate the lot-to-lot consistency of the vaccine lots.
Flu D-QIV HI antibody titers against 3 influenza strains (A/Tasmania/503/2020 (H3N2) IVR-221; B/Washington/02/2019; B/Phuket/3073/2013) were expressed as geometric mean titers (GMTs), as assessed by HI assay. This objective analyzed the humoral immune response to the Flu D-QIV vaccine when given alone and co-administered with RSV MAT vaccine in terms of antibody titers against 3 influenza strains. As pre-specified in protocol, data reported in this outcome measure was presented for the pooled RSV+Flu Group and Flu+Placebo Group, since minimal differences were expected between participants who received different RSV lots of the vaccine.
Assessed solicited local AEs are: erythema, pain and swelling. Any = occurrence of the adverse event regardless of intensity grade. Any erythema and swelling = adverse event reported with a surface diameter greater than 0 millimeters. The analysis of this outcome measure was reported for the Pooled groups \[RSV120\_dTpa\_RSV120(Pooled), RSV120\_Placebo\_RSV120(Pooled), RSV60\_dTpa\_RSV120(Pooled), RSV120\_Placebo\_RSV120(Pooled) and dTpa\_Placebo\_RSV120(Pooled)\] as the two formulations of the dTpa vaccine (containing 300 μg or 500 μg of aluminum) showed similar immunogenicity and safety profiles in previous studies. The objective of this endpoint was to analyze the impact of the co-administration of RSVPreF3 with dTpa (Boostrix) (both formulations together) on the safety response to RSVPreF3.
Assessed solicited general AEs are: fatigue, gastrointestinal symptoms, headache and fever (body temperature ≥ 38 degree celcius/100.4 degree Farenhit). Any = occurrence of the adverse event regardless of intensity grade or relation to study vaccination. The analysis of this outcome measure was reported for the Pooled groups \[RSV120\_dTpa\_RSV120(Pooled), RSV120\_Placebo\_RSV120(Pooled), RSV60\_dTpa\_RSV120(Pooled), RSV120\_Placebo\_RSV120(Pooled) and dTpa\_Placebo\_RSV120(Pooled)\] as the two formulations of the dTpa vaccine (containing 300 μg or 500 μg of aluminum) showed similar immunogenicity and safety profiles in previous studies. The objective of this endpoint was to analyze the impact of the co-administration of RSVPreF3 with dTpa (Boostrix) (both formulations together) on the safety response to RSVPreF3.
An unsolicited AE is 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 is to be reported as an unsolicited AE. The analysis of this outcome measure was reported for the Pooled groups \[RSV120\_dTpa\_RSV120(Pooled), RSV120\_Placebo\_RSV120(Pooled), RSV60\_dTpa\_RSV120(Pooled), RSV120\_Placebo\_RSV120(Pooled) and dTpa\_Placebo\_RSV120(Pooled)\] as the two formulations of the dTpa vaccine (containing 300 μg or 500 μg of aluminum) showed similar immunogenicity and safety profiles in previous studies. The objective of this endpoint was to analyze the impact of the co-administration of RSVPreF3 with dTpa (Boostrix) (both formulations together) on the safety response to RSVPreF3.
A SAE is any untoward medical occurrence that results in death, is life-threatening, requires hospitalization or prolongation of existing hospitalization or results in disability/incapacity or is a congenital anomaly/birth defect in the offspring of a study subject. Any is defined as any occurrence of SAE regardless of intensity grade or relation to study vaccination. The analysis of this outcome measure was reported for the Pooled groups \[RSV120\_dTpa\_RSV120(Pooled), RSV120\_Placebo\_RSV120(Pooled), RSV60\_dTpa\_RSV120(Pooled), RSV120\_Placebo\_RSV120(Pooled) and dTpa\_Placebo\_RSV120(Pooled)\] as the two formulations of the dTpa vaccine (containing 300 μg or 500 μg of aluminum) showed similar immunogenicity and safety profiles in previous studies. The objective of this endpoint was to analyze the impact of the co-administration of RSVPreF3 with dTpa (Boostrix) (both formulations together) on the safety response to RSVPreF3.
Assessed solicited local AEs are: erythema, pain and swelling. Any = occurrence of the adverse event regardless of intensity grade. Any erythema and swelling = adverse event reported with a surface diameter greater than 0 millimeters. The analysis of this outcome measure was reported for the Pooled groups \[RSV120\_dTpa\_RSV120(Pooled), RSV120\_Placebo\_RSV120(Pooled), RSV60\_dTpa\_RSV120(Pooled), RSV120\_Placebo\_RSV120(Pooled) and dTpa\_Placebo\_RSV120(Pooled)\] as the two formulations of the dTpa vaccine (containing 300 μg or 500 μg of aluminum) showed similar immunogenicity and safety profiles in previous studies.The objective of this endpoint was to analyze the impact of the co-administration of RSVPreF3 with dTpa (Boostrix) (both formulations together) on the safety response to RSVPreF3.
Assessed solicited general AEs are: fatigue, gastrointestinal symptoms, headache and fever(body temperature ≥ 38 degree celcius/100.4 degree Farenhit). Any = occurrence of the adverse event regardless of intensity grade or relation to study vaccination. The analysis of this outcome measure was reported for the Pooled groups \[RSV120\_dTpa\_RSV120(Pooled), RSV120\_Placebo\_RSV120(Pooled), RSV60\_dTpa\_RSV120(Pooled), RSV120\_Placebo\_RSV120(Pooled) and dTpa\_Placebo\_RSV120(Pooled)\] as the two formulations of the dTpa vaccine (containing 300 μg or 500 μg of aluminum) showed similar immunogenicity and safety profiles in previous studies. The objective of this endpoint was to analyze the impact of the co-administration of RSVPreF3 with dTpa (Boostrix) (both formulations together) on the safety response to RSVPreF3.
An unsolicited AE is 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 is to be reported as an unsolicited AE. The analysis of this outcome measure was reported for the Pooled groups \[RSV120\_dTpa\_RSV120(Pooled), RSV120\_Placebo\_RSV120(Pooled), RSV60\_dTpa\_RSV120(Pooled), RSV120\_Placebo\_RSV120(Pooled) and dTpa\_Placebo\_RSV120(Pooled)\] as the two formulations of the dTpa vaccine (containing 300 μg or 500 μg of aluminum) showed similar immunogenicity and safety profiles in previous studies. The objective of this endpoint was to analyze the impact of the co-administration of RSVPreF3 with dTpa (Boostrix) (both formulations together) on the safety response to RSVPreF3.
A SAE is any untoward medical occurrence that results in death, is life-threatening, requires hospitalization or prolongation of existing hospitalization or results in disability/incapacity or is a congenital anomaly/birth defect in the offspring of a study subject. Any is defined as any occurrence of SAE regardless of intensity grade or relation to study vaccination. The analysis of this outcome measure was reported for the Pooled groups \[RSV120\_dTpa\_RSV120(Pooled), RSV120\_Placebo\_RSV120(Pooled), RSV60\_dTpa\_RSV120(Pooled), RSV120\_Placebo\_RSV120(Pooled) and dTpa\_Placebo\_RSV120(Pooled)\] as the two formulations of the dTpa vaccine (containing 300 μg or 500 μg of aluminum) showed similar immunogenicity and safety profiles in previous studies. The objective of this endpoint was to analyze the impact of the co-administration of RSVPreF3 with dTpa (Boostrix) (both formulations together) on the safety response to RSVPreF3.
Serological assays for the determination of antibodies against RSV-A were performed by neutralization assay and titers are expressed in ED60 (Estimated Dilution 60). The analysis of this outcome measure was reported for the Pooled groups \[RSV120\_dTpa\_RSV120(Pooled), RSV120\_Placebo\_RSV120(Pooled), RSV60\_dTpa\_RSV120(Pooled), RSV120\_Placebo\_RSV120(Pooled) and dTpa\_Placebo\_RSV120(Pooled)\] as the two formulations of the dTpa vaccine (containing 300 μg or 500 μg of aluminum) showed similar immunogenicity and safety profiles in previous studies. The objective of this endpoint was to analyze the impact of the co-administration of RSVPreF3 with dTpa (Boostrix) (both formulations together) on the immunogenicity response to RSVPreF3.
Serological assays for the determination of antibodies against RSV-A were performed by neutralization assay and titers are expressed in ED60. The analysis of this outcome measure was reported for the Pooled groups \[RSV120\_dTpa\_RSV120(Pooled), RSV120\_Placebo\_RSV120(Pooled), RSV60\_dTpa\_RSV120(Pooled), RSV120\_Placebo\_RSV120(Pooled) and dTpa\_Placebo\_RSV120(Pooled)\] as the two formulations of the dTpa vaccine (containing 300 μg or 500 μg of aluminum) showed similar immunogenicity and safety profiles in previous studies. The objective of this endpoint was to analyze the impact of the co-administration of RSVPreF3 with dTpa (Boostrix) (both formulations together) on the immunogenicity response to RSVPreF3.
Serological assays for the determination of antibodies against RSV-A were performed by neutralization assay and titers are expressed in ED60. The analysis of this outcome measure was reported for the Pooled groups \[RSV120\_dTpa\_RSV120(Pooled), RSV120\_Placebo\_RSV120(Pooled), RSV60\_dTpa\_RSV120(Pooled), RSV120\_Placebo\_RSV120(Pooled) and dTpa\_Placebo\_RSV120(Pooled)\] as the two formulations of the dTpa vaccine (containing 300 μg or 500 μg of aluminum) showed similar immunogenicity and safety profiles in previous studies. The objective of this endpoint was to analyze the impact of the co-administration of RSVPreF3 with dTpa (Boostrix) (both formulations together) on the immunogenicity response to RSVPreF3.
Serological assays for the determination of IgG antibodies against RSV PreF3 were performed by Enzyme-linked immunosorbent assay (ELISA ). The analysis of this outcome measure was reported for the Pooled groups \[RSV120\_dTpa\_RSV120(Pooled), RSV120\_Placebo\_RSV120(Pooled), RSV60\_dTpa\_RSV120(Pooled), RSV120\_Placebo\_RSV120(Pooled) and dTpa\_Placebo\_RSV120(Pooled)\] as the two formulations of the dTpa vaccine (containing 300 μg or 500 μg of aluminum) showed similar immunogenicity and safety profiles in previous studies. The objective of this endpoint was to analyze the impact of the co-administration of RSVPreF3 with dTpa (Boostrix) (both formulations together) on the immunogenicity response to RSVPreF3.
Serological assays for the determination of IgG antibodies against RSV PreF3 were performed by Enzyme-linked immunosorbent assay (ELISA). The analysis of this outcome measure was reported for the Pooled groups \[RSV120\_dTpa\_RSV120(Pooled), RSV120\_Placebo\_RSV120(Pooled), RSV60\_dTpa\_RSV120(Pooled), RSV120\_Placebo\_RSV120(Pooled) and dTpa\_Placebo\_RSV120(Pooled)\] as the two formulations of the dTpa vaccine (containing 300 μg or 500 μg of aluminum) showed similar immunogenicity and safety profiles in previous studies. The objective of this endpoint was to analyze the impact of the co-administration of RSVPreF3 with dTpa (Boostrix) (both formulations together) on the immunogenicity response to RSVPreF3.
Serological assays for the determination of IgG antibodies against RSV PreF3 were performed by Enzyme-linked immunosorbent assay (ELISA). Analysis of this outcome measure was reported for the Pooled groups \[RSV120\_dTpa\_RSV120(Pooled), RSV120\_Placebo\_RSV120(Pooled), RSV60\_dTpa\_RSV120(Pooled), RSV120\_Placebo\_RSV120(Pooled) and dTpa\_Placebo\_RSV120(Pooled)\] as the two formulations of the dTpa vaccine (containing 300 μg or 500 μg of aluminum) showed similar immunogenicity and safety profiles in previous studies. The objective of this endpoint was to analyze the impact of the co-administration of RSVPreF3 with dTpa (Boostrix) (both formulations together) on the immunogenicity response to RSVPreF3.
| Arm | Type | Description |
|---|---|---|
| RSV MAT Group - Mother | OTHER | Maternal participants who received the RSVPreF3 vaccine during the prior RSV MAT studies (RSV MAT-001, RSV MAT-004, RSV MAT-009, RSV MAT-010, RSV MAT-011, RSV MAT-012 and RSV MAT-039) according to the vaccination schedule specific to each study. |
| Control Group - Mother | OTHER | Maternal participants who received any control (placebo, Tdap or influenza vaccine) during the prior RSV MAT studies (RSV MAT-001, RSV MAT-004, RSV MAT-009, RSV MAT-010, RSV MAT-011, RSV MAT-012 and RSV MAT-039) according to the vaccination schedule specific to each study. |
| RSV MAT Group - Infant | NO_INTERVENTION | This group consisted of infants live-born to maternal participants in the RSV MAT Group - Mother. |
| Control Group - Infant | NO_INTERVENTION | This group consisted of infants live-born to maternal participants in the Control Group - Mother. |
| RSV lot1 Group | EXPERIMENTAL | Participants randomized to the RSV lot1 Group received one dose of RSV MAT Lot 1 vaccine intramuscularly at Day 1. Participants were also provided with an option of receiving Flu D-QIV vaccine at Day 31 to allow the participants receive the standard of care. |
| RSV lot2 Group | EXPERIMENTAL | Participants randomized to the RSV lot2 Group received one dose of RSV MAT Lot 2 vaccine intramuscularly at Day 1. Participants were also provided with an option of receiving Flu D-QIV vaccine at Day 31 to allow the participants receive the standard of care. |
| RSV lot3 Group | EXPERIMENTAL | Participants randomized to the RSV lot3 Group received one dose of RSV MAT Lot 3 vaccine intramuscularly at Day 1. Participants were also provided with an option of receiving Flu D-QIV vaccine at Day 31 to allow the participants receive the standard of care. |
| RSV+Flu pooled Group | EXPERIMENTAL | Participants randomized in this group received one dose of RSVPreF3 vaccine (RSV MAT vaccine) from one of the three lots used (Lot 1, Lot 2 or Lot 3 of same formulation of RSVPreF3 vaccine) and one dose of the Flu D-QIV vaccine on Day 1, and were followed up until the end of the study (Day 181). The participants in this group were considered for the immunogenicity and safety analyses of the RSV MAT and Flu D-QIV vaccines. |
| Flu+Placebo Group | ACTIVE_COMPARATOR | Participants randomized in this group received one dose of Flu D-QIV vaccine co-administered with one dose of placebo at Day 1, and were followed up until the end of the study (Day 181). This group was considered comparator for immunogenicity and safety analyses for RSV+ Flu Pooled group. |
| RSV120_dTpa_RSV120(Pooled) | EXPERIMENTAL | Subjects received one dose of 120 μg RSVPreF3 formulation 3 vaccine and either one dose of 300 μg or 500 μg dTpa (Boostrix) vaccine on Day 1 of the Primary Study and were followed up until Day 181. The subjects that agreed to participate in the Extension Study received a second dose of 120 μg RSVPreF3 formulation 3 vaccine 12 to 18 months post 1st vaccination and were followed up until the study end. |
| RSV120_Placebo_RSV120(Pooled) | PLACEBO_COMPARATOR | Subjects received one dose of 120 μg RSVPreF3 formulation 3 vaccine and one dose of Placebo on Day 1 of the Primary Study and were followed up until Day 181. The subjects that agreed to participate in the Extension Study received a second dose of 120 μg RSVPreF3 formulation 3 vaccine 12 to 18 months post 1st vaccination and were followed up until the study end. |
| RSV60_dTpa_RSV120(Pooled) | EXPERIMENTAL | Subjects received one dose of 60 μg RSVPreF3 formulation 2 vaccine and either one dose of 300 μg or 500 μg dTpa vaccine on Day 1 of the Primary Study and were followed up until Day 181. The subjects that agreed to participate in the Extension Study received one dose of 120 μg RSVPreF3 formulation 3 vaccine 12 to 18 months post 1st vaccination and were followed up until the study end. |
| RSV60_Placebo_RSV120(Pooled) | PLACEBO_COMPARATOR | Subjects received one dose of 60 μg RSVPreF3 formulation 2 vaccine and one dose of Placebo on Day 1 of the Primary Study and were followed up until Day 181. The subjects that agreed to participate in the Extension Study received one dose of 120 μg RSVPreF3 formulation 3 vaccine 12 to 18 months post 1st vaccination and were followed up until the study end. |
| dTpa_Placebo_RSV120(Pooled) | PLACEBO_COMPARATOR | Subjects received one dose of Placebo and either one dose of 300 μg or 500 μg dTpa vaccine on Day 1 of the Primary Study and were followed up until Day 181. The subjects that agreed to participate in the Extension Study received one dose of 120 μg RSVPreF3 formulation 3 vaccine 12 to 18 months post 1st vaccination and were followed up until the study end. |
| Name | Type | Description |
|---|---|---|
| RSVPreF3 vaccine | BIOLOGICAL | No intervention was administered in this extension study. Participants received the RSVPreF3 vaccine during the prior RSV MAT studies (RSV MAT-001, RSV MAT-004, RSV MAT-010, RSV MAT-011, RSV MAT-009, RSV MAT-012 and RSV MAT-039) according to the vaccination schedule specific to each study. In all prior RSV MAT studies, participants received one dose of RSVPreF3 vaccine except in RSV MAT-011 study, where some participants received a second dose as well. |
| Control | OTHER | No intervention was administered in this extension study. Participants received any control (placebo, Tdap or influenza vaccine) during the prior RSV MAT studies (RSV MAT-001, RSV MAT-004, RSV MAT-010, RSV MAT-011, RSV MAT-009, RSV MAT-012 and RSV MAT-039) according to the vaccination schedule specific to each study. In all prior RSV MAT studies, participants received one dose of any control (placebo, Tdap or influenza vaccine). |
| RSVPreF3(120 μg) | COMBINATION_PRODUCT | A single dose of RSVPreF3(120 μg) combined with Sodium Chloride (NaCl) was administrated intramuscular (IM). There were used 3 different lots of RSVPreF3(120 μg), one for each individual group (RSV lot1 Group, RSV lot2 Group and RSV lot3 Group) considered under RSV pooled Group. |
| Flu Quadrivalent influenza vaccine (15 μg HA) | COMBINATION_PRODUCT | A single dose of Flu Quadrivalent influenza (15 μg HA) vaccine was administrated intramuscular (IM). |
| Placebo | COMBINATION_PRODUCT | One dose of placebo, administered intramuscularly in the deltoid region of the right arm, at Day 1. |
| RSVPreF3 formulation 3 | BIOLOGICAL | One dose of RSVPreF3 formulation 3 vaccine administered intramuscularly in the left or in the non-dominant arm. |
| RSVPreF3 formulation 2 | BIOLOGICAL | One dose of RSVPreF3 formulation 2 vaccine administered intramuscularly in the left arm. |
| Boostrix-ex-US | BIOLOGICAL | One dose of the dTpa (Ex-US formulation) vaccine administered intramuscularly in the right arm. |
| Boostrix-US | BIOLOGICAL | One dose of the dTpa vaccine (US formulation) administered intramuscularly in the right arm. |
Inclusion Criteria: Retrospective cohort Adult/Adolescent Participant: * Adult/Adolescent study participant from any of the prior RSV MAT studies who have either received RSV MAT vaccine or control (placebo, Tdap or influenza vaccine). * Study participant: * who has reached 2 years+2 months po...