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RSV MAT vaccine

Phase 3

Respiratory Syncytial Virus Infections | Vaccine | Infectious Disease |GSK plc|Last Updated: Apr 7, 2023

Success Probability

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Market & Valuation

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Trial Design

RandomizedCONTROLLEDDMC
Total Trials1
Total Enrollment9

FDA Designations

No designations recorded

Clinical trial landscape

RSV MAT vaccine · 1 trial · 1 indication

Phase 3 1
NCT05169905A Study to Evaluate the Safety and Immune Response to an Unadjuvanted RSV Maternal Vaccine in Healthy Non-pregnant Females From 9 to 49 Years of AgeRespiratory Syncytial Virus Infections
COMPLETED9 Analytics
PHASE3COMPLETED
A Study to Evaluate the Safety and Immune Response to an Unadjuvanted RSV Maternal Vaccine in Healthy Non-pregnant Females From 9 to 49 Years of Age
Respiratory Syncytial Virus InfectionsUnlock trial analytics

Study Endpoints

Primary Endpoints

Number of Participants Reporting Any Serious Adverse Events (SAEs)
During the entire study period (from Day 1 up to Day 181)

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. Any is defined as the occurrence of the symptom regardless of intensity grade or relationship to vaccination.

Number of Participants Reporting Adverse Events (AEs)/SAEs Leading to Study Withdrawal
During the entire study period (from Day 1 up to Day 181)

An AE is any untoward medical occurrence, symptom, or disease in a clinical study participant that is temporally associated with the study intervention. The AE may or may not be considered related to the study intervention. 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. A participant is considered to have withdrawn from the study if no new study procedure has been performed or no new information has been collected for him/her since the date of withdrawal/last contact.

Number of Participants Reporting Any Solicited Administration Site Events
During the 7 days follow-up period post-Dose 1

Assessed solicited administration site events include pain, erythema and swelling. Any pain = occurrence of the symptom regardless of intensity grade. Any erythema and swelling = symptom reported with a surface diameter lower than or equal to 20 millimeters.

Number of Participants Reporting Any Solicited Systemic Events
During the 7 days follow-up period post-Dose 1

Assessed solicited systemic events include fatigue, headache, gastrointestinal (GI) symptoms (nausea, vomiting, diarrhea, abdominal pain) and fever. The preferred location for measuring temperature is the oral cavity. Fever is defined as temperature equal to or above (≥) 38.0 °C/100.4°F. Any is defined as the occurrence of the symptom regardless of intensity grade.

Number of Participants Reporting Any Unsolicited AEs
During the 30 days follow-up period post-Dose 1

An unsolicited AE is an event 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. Any is defined as the occurrence of the unsolicited AE regardless of intensity grade or relationship to vaccination.

Number of Participants Reporting SAEs and Medically Attended Adverse Events (MAEs)
During the 30 days follow-up period post-Dose 1

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. An MAE is an unsolicited AE for which the participants receive medical attention, defined as symptoms or illnesses requiring a hospitalization, or an emergency room visit, or visit to/by a health care provider.

Number of Participants Reporting AEs/SAEs/MAEs Leading to Study Withdrawal
During the 30 days follow-up period post-Dose 1

An AE is any untoward medical occurrence, symptom, or disease in a clinical study participant that is temporally associated with the study intervention. The AE may or may not be considered related to the study intervention. 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. An MAE is an unsolicited AE for which the participants received medical attention defined as symptoms or illnesses requiring a hospitalization, or an emergency room visit, or visit to/by a health care provider. A participant is considered to have withdrawn from the study if no new study procedure has been performed or no new information has been collected for him/her since the date of withdrawal/last contact.

Secondary Endpoints

RSV-A Neutralizing Antibody Titers for Participants in RSV_dTpa-P Group and RSV_dTpa-A Group at Day 1
At pre-dosing (Day 1)
RSV-A Neutralizing Antibody Titers for Participants in RSV_dTpa-P Group and RSV_dTpa-A Group at Day 31
At 30 days post-RSV MAT vaccine administration (Day 31)
RSV-B Neutralizing Antibody Titers for Participants in RSV_dTpa-P Group and RSV_dTpa-A Group at Day 1
At pre-dosing (Day 1)
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Study Design & Arms

AllocationRANDOMIZED
MaskingNONE
ModelCROSSOVER
PurposePREVENTION

Treatment Arms

ArmTypeDescription
RSV_dTpa-P GroupEXPERIMENTALHealthy non-pregnant girls 9-17 years of age received a single dose of RSV MAT vaccine at Day 1 and were scheduled to receive a single dose of dTpa vaccine at Day 31 and to be followed-up until end of study (180 days post-vaccine administration). Participants who were enrolled and were due to receive the dTpa vaccine at Day 31, did no longer receive the dTpa as part of this study, but they were provided with an option to decide to receive dTpa vaccination as part of standard of care/local recommendation on immunization.
dTpa_RSV-P GroupEXPERIMENTALHealthy non-pregnant girls 9-17 years of age were scheduled to receive a single dose of dTpa vaccine at Day 1 and a single dose of RSV MAT vaccine at Day 31 and to be followed-up until end of study (180 days post-vaccine administration), but there were no participants assigned to this study group, and hence, there was no vaccine administered in this study group.
RSV_dTpa-A GroupEXPERIMENTALHealthy non-pregnant adult women 18-49 years of age received a single dose of RSV MAT vaccine at Day 1 and were scheduled to receive a single dose of dTpa vaccine at Day 31 and to be followed-up until end of study (180 days post-vaccine administration). Participants who were enrolled and were due to receive the dTpa vaccine at Day 31, did no longer receive the dTpa as part of this study, but they were provided with an option to decide to receive dTpa vaccination as part of standard of care/local recommendation on immunization.
dTpa_RSV-A GroupEXPERIMENTALHealthy non-pregnant adult women 18-49 years of age received a single dose of dTpa vaccine at Day 1 and were scheduled to receive a single dose of RSV MAT vaccine at Day 31 and to be followed-up until end of study (180 days post-vaccine administration). RSV MAT vaccine was no longer administered to participants at Day 31.

Interventions

NameTypeDescription
RSV MAT vaccineCOMBINATION_PRODUCTSingle dose of the RSV MAT vaccine reconstituted with NaCl solution was planned to be administered intramuscularly, in the non-dominant arm, at Day 1 or at Day 31, depending on the vaccination schedule. RSV MAT vaccine was no longer administered to participants at Day 31. No vaccine was administered in the dTpa\_RSV-P Group, since there were no participants assigned to it.
dTpa vaccineCOMBINATION_PRODUCTSingle dose of the dTpa vaccine was planned to be administered intramuscularly, in the non-dominant arm, at Day 1 or at Day 31, depending on the vaccination schedule. Two formulations of dTpa vaccine are licensed in the US and outside of the US (ex-US), respectively. dTpa-US formulation was administered to participants in centers located in the US, while dTpa-ex-US formulation was planned to be administered to participants in centers ex-US. The dTpa-ex-US formulation was not applicable in this study anymore as no non-US sites were initiated before the decision to stop the study. The participants in RSV\_dTpa-P and RSV\_dTpa-A study groups were provided with an option to decide to receive dTpa vaccination as part of standard of care/local recommendation on immunization. No vaccine was administered in the dTpa\_RSV-P Group, since there were no participants assigned to it.
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Eligibility Criteria

Age Range9 Years to 49 Years
SexFEMALE
Healthy VolunteersYes
Study Sites2

Inclusion Criteria: Healthy Non-pregnant Adult Women from 18-49 YOA * Participants who, in the opinion of the investigator, can and will comply with the requirements of the protocol. * Written or witnessed/thumb printed informed consent obtained from the participant prior to performance of any stu...

Countries:United States
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Frequently asked questions about RSV MAT vaccine

What is RSV MAT vaccine used for?

RSV MAT vaccine is an investigational vaccine being developed for the prevention of Respiratory Syncytial Virus (RSV) infections. It is designed for use in maternal immunization, targeting healthy non-pregnant females aged 9 to 49 years, with the goal of providing protection against RSV.

Who makes RSV MAT vaccine?

RSV MAT vaccine is being developed by GSK plc, a global biopharma company listed on the stock exchange under the ticker GSK. The vaccine is currently in clinical development for the prevention of Respiratory Syncytial Virus infections.

What phase is RSV MAT vaccine in?

RSV MAT vaccine is currently in Phase 3 clinical development. It is an investigational vaccine, meaning it has not yet been approved by regulatory authorities and is still undergoing clinical trials to evaluate its safety and immune response.

What clinical trials is RSV MAT vaccine in?

RSV MAT vaccine has one completed Phase 3 clinical trial, identified as NCT05169905. This study evaluated the safety and immune response to the unadjuvanted RSV maternal vaccine in healthy non-pregnant females aged 9 to 49 years in the United States.

Is RSV MAT vaccine the same as any other vaccine?

RSV MAT vaccine is a specific investigational vaccine developed by GSK plc. It is not known to be the same as any other vaccine, as no alternative names have been associated with this drug in the available information.