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

NCT ID: NCT04138056

Last Updated: 2024-08-21

Study Results

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Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE2

Total Enrollment

509 participants

Study Classification

INTERVENTIONAL

Study Start Date

2019-11-05

Study Completion Date

2021-11-22

Brief Summary

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The purpose of this study is to evaluate the safety, ability of GSK Biologicals' investigational RSV maternal vaccine (RSVPreF3) to generate an immune response and the degree to which the vaccine can cause side effects, when administered alone and in combination with Boostrix vaccine in healthy non-pregnant women 18-45 years of age. Two dose levels of RSVPreF3 and 2 Boostrix \[Diphtheria, Tetanus and acellular Pertussis (dTpa) vaccine\] formulations (US and ex-US) will be evaluated. A 2nd dose of RSVPreF3 will be administered in an extension of the study to assess the durability of the immune response after the first dose vaccination, and to assess the safety and immunogenicity following a second dose vaccination of the RSVPreF3 maternal vaccine.

Detailed Description

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Conditions

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Respiratory Syncytial Virus Infections

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

PREVENTION

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors
Data will be collected in an observer-blind manner. In an observer-blind study, the subject and the site and sponsor personnel involved in the clinical evaluation of the subjects are blinded while other study personnel may be aware of the treatment assignment. By observer-blind, it is meant that during the course of the study, the vaccine(s) recipient and those responsible for the evaluation of any study endpoint (e.g. safety, reactogenicity) will all be unaware of which vaccines were administered.

Study Groups

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RSV120_dTpa_RSV120(Pooled)

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.

Group Type EXPERIMENTAL

RSVPreF3 formulation 3

Intervention Type BIOLOGICAL

One dose of RSVPreF3 formulation 3 vaccine administered intramuscularly in the left or in the non-dominant arm.

Boostrix-ex-US

Intervention Type BIOLOGICAL

One dose of the dTpa (Ex-US formulation) vaccine administered intramuscularly in the right arm.

Boostrix-US

Intervention Type BIOLOGICAL

One dose of the dTpa vaccine (US formulation) administered intramuscularly in the right arm.

RSV120_Placebo_RSV120(Pooled)

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.

Group Type PLACEBO_COMPARATOR

RSVPreF3 formulation 3

Intervention Type BIOLOGICAL

One dose of RSVPreF3 formulation 3 vaccine administered intramuscularly in the left or in the non-dominant arm.

Placebo

Intervention Type DRUG

One dose of placebo (NaCl solution) administered intramuscularly in either the left or the right arm.

RSV60_dTpa_RSV120(Pooled)

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.

Group Type EXPERIMENTAL

RSVPreF3 formulation 3

Intervention Type BIOLOGICAL

One dose of RSVPreF3 formulation 3 vaccine administered intramuscularly in the left or in the non-dominant arm.

RSVPreF3 formulation 2

Intervention Type BIOLOGICAL

One dose of RSVPreF3 formulation 2 vaccine administered intramuscularly in the left arm.

Boostrix-ex-US

Intervention Type BIOLOGICAL

One dose of the dTpa (Ex-US formulation) vaccine administered intramuscularly in the right arm.

Boostrix-US

Intervention Type BIOLOGICAL

One dose of the dTpa vaccine (US formulation) administered intramuscularly in the right arm.

RSV60_Placebo_RSV120(Pooled)

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.

Group Type PLACEBO_COMPARATOR

RSVPreF3 formulation 3

Intervention Type BIOLOGICAL

One dose of RSVPreF3 formulation 3 vaccine administered intramuscularly in the left or in the non-dominant arm.

RSVPreF3 formulation 2

Intervention Type BIOLOGICAL

One dose of RSVPreF3 formulation 2 vaccine administered intramuscularly in the left arm.

Placebo

Intervention Type DRUG

One dose of placebo (NaCl solution) administered intramuscularly in either the left or the right arm.

dTpa_Placebo_RSV120(Pooled)

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.

Group Type PLACEBO_COMPARATOR

RSVPreF3 formulation 3

Intervention Type BIOLOGICAL

One dose of RSVPreF3 formulation 3 vaccine administered intramuscularly in the left or in the non-dominant arm.

Boostrix-ex-US

Intervention Type BIOLOGICAL

One dose of the dTpa (Ex-US formulation) vaccine administered intramuscularly in the right arm.

Boostrix-US

Intervention Type BIOLOGICAL

One dose of the dTpa vaccine (US formulation) administered intramuscularly in the right arm.

Placebo

Intervention Type DRUG

One dose of placebo (NaCl solution) administered intramuscularly in either the left or the right arm.

Interventions

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RSVPreF3 formulation 3

One dose of RSVPreF3 formulation 3 vaccine administered intramuscularly in the left or in the non-dominant arm.

Intervention Type BIOLOGICAL

RSVPreF3 formulation 2

One dose of RSVPreF3 formulation 2 vaccine administered intramuscularly in the left arm.

Intervention Type BIOLOGICAL

Boostrix-ex-US

One dose of the dTpa (Ex-US formulation) vaccine administered intramuscularly in the right arm.

Intervention Type BIOLOGICAL

Boostrix-US

One dose of the dTpa vaccine (US formulation) administered intramuscularly in the right arm.

Intervention Type BIOLOGICAL

Placebo

One dose of placebo (NaCl solution) administered intramuscularly in either the left or the right arm.

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

Primary study

* Subjects 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 subject prior to performance of any study specific procedure.
* Healthy female subjects; as established by medical history and clinical examination, aged 18 to 45 years at the time of the 1st vaccination;
* Female subjects of childbearing potential may be enrolled in the study, if the subject:

* has practiced adequate contraception for 30 days prior to primary vaccination, and
* has a negative pregnancy test on the day of primary vaccination, and
* has agreed to continue adequate contraception for 90 days after completion of the vaccination.
* No local condition precluding injection in both left and right deltoid muscles.

Extension study

* Completed primary study and received 1st dose of a study vaccine.
* Written or witnessed/thumb printed informed consent obtained from the subject prior to performance of any study specific procedure to the study extension.

All subjects must satisfy ALL the following criteria:

* Subjects who can and will comply with the requirements of the protocol.
* Female subjects remain healthy; as established by medical history and clinical examination, aged 18 to 45 years at the time of the 1st vaccination;
* Female subjects of childbearing potential are eligible for the extension, if the subject:

* has practiced adequate contraception for 30 days prior to 2nd vaccination
* has a negative pregnancy test with results available on the day of 2nd vaccination
* has agreed to continue adequate contraception for 90 days after completion of the 2nd vaccination.

Exclusion Criteria

Primary study

Medical conditions

* History of any reaction/hypersensitivity likely to be exacerbated by any vaccines' component;
* Any confirmed/suspected immunosuppressive/immunodeficient condition, based on medical history and physical examination;
* Hypersensitivity to latex;
* Major congenital defects;
* Acute/chronic clinically significant pulmonary, cardiovascular, hepatic/renal functional abnormality;
* Significant/uncontrolled psychiatric illness;
* Recurrent history/uncontrolled neurological disorders/seizures;
* Documented HIV-positive subject;
* History of/current autoimmune disease;
* Body mass index (BMI)\>40 kg/m\^2;
* Any clinically significant hematological parameter and/or biochemical laboratory abnormality.
* Any other clinical condition that might pose additional risk to the subject due to participation in the study.

Prior/Concomitant therapy

* Use of any investigational/non-registered product other than the study vaccines during the period starting 30 days before 1st vaccination, or planned use during the study;
* Administration of long-acting immune-modifying drugs at any time during the study;
* Administration of immunoglobulins and/or any blood products/plasma derivatives during the period starting 3 months before the 1st vaccination or planned administration during the study;
* Chronic administration of immunosuppressants/other immune-modifying drugs during the period starting 3 months prior to 1st vaccine dose(s). For corticosteroids, this will mean prednisone ≥5 mg/day, or equivalent. Inhaled and topical steroids are allowed;
* Planned administration/administration of a vaccine not foreseen by the study protocol within the period starting 30 days before and ending 30 days after study 1st vaccination, with the exception of any licensed influenza vaccine which may be administered ≥ 15 days before/after study vaccination;
* Administration of a vaccine containing diphtheria, tetanus/pertussis antigens/diphtheria and tetanus toxoids within the previous 5 years;
* Previous experimental vaccination against RSV;

Prior/Concurrent clinical study experience • Concurrently participating in another clinical study, at any time during the study, in which the subject has been/will be exposed to an investigational/a non-investigational vaccine/product;

Other exclusions

* Pregnant/lactating female;
* Female planning to become pregnant/planning to discontinue contraceptive precautions;
* History of alcoholism, drug abuse and/or use disorder within the past 2 years;
* Any study personnel/their immediate dependents, family/household members.

Extension study

Medical conditions

* History of any reaction/hypersensitivity likely to be exacerbated by any component of the vaccines;
* Any confirmed/suspected immunosuppressive/immunodeficient condition, based on medical history and physical examination;
* Hypersensitivity to latex;
* Acute/chronic clinically significant pulmonary, cardiovascular, hepatic/renal functional abnormality;
* Significant/uncontrolled psychiatric illness;
* Recurrent history/uncontrolled neurological disorders/seizures;
* Documented HIV-positive subject;
* History of/current autoimmune disease;
* BMI\>40 kg/m\^2;
* Participants who experienced any SAE judged to be possibly or probably related to 1st dose of RSVPreF3, including hypersensitivity reactions.
* Any other clinical condition that might pose additional risk to the subject due to participation in the study.

Prior/Concomitant therapy

* Use of any investigational/non-registered product other than the study vaccines during the period starting 30 days before the 2nd vaccination, or planned use during the 6-month study extension;
* Administration of long-acting immune-modifying drugs at any time during the study;
* Administration of immunoglobulins and/or any blood products/plasma derivatives during the period starting 3 months before the 1st dose of study vaccines/planned administration during the study;
* Chronic administration of immunosuppressants or other immune-modifying drugs during the starting 3 months prior to the 1st vaccine dose(s). For corticosteroids, this will mean prednisone ≥5 mg/day, or equivalent. Inhaled and topical steroids are allowed;
* Planned administration/administration of a vaccine not foreseen by the study protocol within the period starting 30 days before and ending 30 days after study 2nd vaccination, with the exception of any licensed influenza vaccine which may be administered ≥ 15 days before/after study vaccination.

Prior/Concurrent clinical study experience

• Concurrently participating in another clinical study, at any time during the study, in which the subject has been/will be exposed to an investigational/a non-investigational vaccine/product;

Other exclusions

* Pregnant/lactating female at the time of Visit 4;
* Female planning to become pregnant/planning to discontinue contraceptive precautions;
* History of alcoholism, drug abuse and/or use disorder within the past 2 years;
* Any study personnel/their immediate dependents, family/household members.
Minimum Eligible Age

18 Years

Maximum Eligible Age

45 Years

Eligible Sex

FEMALE

Accepts Healthy Volunteers

Yes

Sponsors

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GlaxoSmithKline

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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GSK Clinical Trials

Role: STUDY_DIRECTOR

GlaxoSmithKline

Locations

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GSK Investigational Site

Miami, Florida, United States

Site Status

GSK Investigational Site

Lenexa, Kansas, United States

Site Status

GSK Investigational Site

Rochester, New York, United States

Site Status

GSK Investigational Site

Seattle, Washington, United States

Site Status

GSK Investigational Site

Ghent, , Belgium

Site Status

GSK Investigational Site

Leuven, , Belgium

Site Status

GSK Investigational Site

Truro, Nova Scotia, Canada

Site Status

GSK Investigational Site

London, Ontario, Canada

Site Status

Countries

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United States Belgium Canada

References

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Hermida N, Ferguson M, Leroux-Roels I, Pagnussat S, Yaplee D, Hua N, van den Steen P, Anspach B, Dieussaert I, Kim JH. Safety and Immunogenicity of Respiratory Syncytial Virus Prefusion Maternal Vaccine Coadministered With Diphtheria-Tetanus-Pertussis Vaccine: A Phase 2 Study. J Infect Dis. 2024 Aug 16;230(2):e353-e362. doi: 10.1093/infdis/jiad560.

Reference Type BACKGROUND
PMID: 38133639 (View on PubMed)

Provided Documents

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Document Type: Study Protocol

View Document

Document Type: Statistical Analysis Plan

View Document

Other Identifiers

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2019-002258-22

Identifier Type: EUDRACT_NUMBER

Identifier Source: secondary_id

209141

Identifier Type: -

Identifier Source: org_study_id

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