Respiratory Syncytial Virus (RSV) Investigational Vaccine in Infants Aged 6 and 7 Months Likely to be Unexposed to RSV

NCT ID: NCT03636906

Last Updated: 2022-07-27

Study Results

Results available

Outcome measurements, participant flow, baseline characteristics, and adverse events have been published for this study.

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Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE1/PHASE2

Total Enrollment

201 participants

Study Classification

INTERVENTIONAL

Study Start Date

2019-04-08

Study Completion Date

2021-07-22

Brief Summary

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The purpose of this study is to provide critical information on the safety, reactogenicity and immunogenicity profile of the investigational recombinant chimpanzee adenovirus Type 155-vectored RSV (ChAd155-RSV) vaccine in infants likely to be unexposed to RSV and will assess a single lower dose and a higher two dose regimen, before moving to future studies. This study will also assess if there is a risk of 'vaccine-induced enhanced RSV disease' after vaccination of these infants with the ChAd155-RSV 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
Observer blind

Study Groups

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RSV1D Pooled Group

Subjects received the interventions as follows:

* Either 1 dose of experimental RSV (GSK3389245A) lower dose formulation at Day 1, followed by 1 dose of Placebo at Day 31 and any one the following active comparators: 2 doses of GSK's meningococcal group A, C, W-135 and Y conjugate vaccine (administered at Day 61 and at the end of RSV season 1) or 3 doses of GSK's multicomponent meningococcal B vaccine or Pfizer's meningococcal group A, C, W-135 and Y conjugate vaccine or GSK's pneumococcal polysaccharide conjugate vaccine (administered at Days 61, 121 and at the end of RSV season 1).
* Or 1 dose of experimental RSV (GSK3389245A) lower dose formulation at Day 1, followed by 1 dose of Placebo at Day 31.

Group Type EXPERIMENTAL

RSV (GSK3389245A) lower dose formulation vaccine

Intervention Type BIOLOGICAL

1 dose of RSV (GSK3389245A) lower dose formulation vaccine administered intramuscularly at Day 1.

GSK's multicomponent meningococcal B vaccine

Intervention Type BIOLOGICAL

3 doses of GSK's multicomponent meningococcal B vaccine administered intramuscularly, at Day 61, Day 121 and at the end of RSV season 1, or at Day 1, Day 61 and end of RSV season 1, depending on the vaccination schedule.

Pfizer's meningococcal group A, C, W-135 and Y conjugate vaccine

Intervention Type BIOLOGICAL

3 doses of Pfizer's meningococcal group A, C, W-135 and Y conjugate vaccine administered intramuscularly, at Day 61, Day 121 and at the end of RSV season 1, or at Day 1, Day 61 and end of RSV season 1, depending on the vaccination schedule.

GSK's pneumococcal polysaccharide conjugate vaccine

Intervention Type BIOLOGICAL

3 doses of GSK's pneumococcal polysaccharide conjugate vaccine administered intramuscularly, at Day 61, Day 121 and at the end of RSV season 1, or at Day 31, Day 61 and end of RSV season 1, depending on the vaccination schedule.

GSK's meningococcal group A, C, W-135 and Y conjugate vaccine

Intervention Type BIOLOGICAL

2 doses of GSK's meningococcal group A, C, W-135 and Y conjugate vaccine administered intramuscularly, at Day 61 and at the end of RSV season 1, or at Day 31 and end of RSV season 1, depending on the vaccination schedule.

Placebo

Intervention Type DRUG

1 dose or 2 doses of Placebo administered intramuscularly at Day 31, or at Day 1 and Day 31, or at Day 1 and Day 61, or at Day 31 and Day 121, depending on the vaccination schedule.

RSV2D Pooled Group

Subjects received the interventions as follows:

* Either 2 doses of experimental RSV (GSK3389245A) higher dose formulation (administered at Day 1 and Day 31) and followed by any one the following active comparators: 2 doses of GSK's meningococcal group A, C, W-135 and Y conjugate vaccine (administered at Day 61 and at the end of RSV season 1) or 3 doses of GSK's multicomponent meningococcal B vaccine or Pfizer's meningococcal group A, C, W-135 and Y conjugate vaccine or GSK's pneumococcal polysaccharide conjugate vaccine (administered at Days 61, 121 and at the end of RSV season 1).
* Or 2 doses of experimental RSV (GSK3389245A) higher dose formulation administered at Day 1 and Day 31.

Group Type EXPERIMENTAL

RSV (GSK3389245A) higher dose formulation vaccine

Intervention Type BIOLOGICAL

2 doses of RSV (GSK3389245A) higher dose formulation vaccine administered intramuscularly, at Day 1 and Day 31.

GSK's multicomponent meningococcal B vaccine

Intervention Type BIOLOGICAL

3 doses of GSK's multicomponent meningococcal B vaccine administered intramuscularly, at Day 61, Day 121 and at the end of RSV season 1, or at Day 1, Day 61 and end of RSV season 1, depending on the vaccination schedule.

Pfizer's meningococcal group A, C, W-135 and Y conjugate vaccine

Intervention Type BIOLOGICAL

3 doses of Pfizer's meningococcal group A, C, W-135 and Y conjugate vaccine administered intramuscularly, at Day 61, Day 121 and at the end of RSV season 1, or at Day 1, Day 61 and end of RSV season 1, depending on the vaccination schedule.

GSK's pneumococcal polysaccharide conjugate vaccine

Intervention Type BIOLOGICAL

3 doses of GSK's pneumococcal polysaccharide conjugate vaccine administered intramuscularly, at Day 61, Day 121 and at the end of RSV season 1, or at Day 31, Day 61 and end of RSV season 1, depending on the vaccination schedule.

GSK's meningococcal group A, C, W-135 and Y conjugate vaccine

Intervention Type BIOLOGICAL

2 doses of GSK's meningococcal group A, C, W-135 and Y conjugate vaccine administered intramuscularly, at Day 61 and at the end of RSV season 1, or at Day 31 and end of RSV season 1, depending on the vaccination schedule.

Comparator_Placebo Pooled Group

Subjects received either one of interventions schedules as follows:

* 3 doses of GSK's multicomponent meningococcal B vaccine (administered at Days 1, 61 and at the end of RSV season 1) and 2 doses of Placebo (administered at Days 31 and 121).
* 3 doses of Pfizer's meningococcal group A, C, W-135 and Y conjugate vaccine (administered at Days 1, 61 and at the end of RSV season 1) and 2 doses of Placebo (administered at Days 31 and 121).
* 3 doses of GSK's pneumococcal polysaccharide conjugate vaccine (administered at Days 31, 61 and at the end of RSV season 1) and 2 doses of Placebo (administered at Day 1 and Day 121).
* 2 doses of GSK's meningococcal group A, C, W-135 and Y conjugate vaccine (administered at Day 31 and at the end of RSV season 1) and 2 doses of Placebo (administered at Days 1 and 61) .
* 2 doses of Placebo alone (administered at Days 1 and 31).

Group Type ACTIVE_COMPARATOR

GSK's multicomponent meningococcal B vaccine

Intervention Type BIOLOGICAL

3 doses of GSK's multicomponent meningococcal B vaccine administered intramuscularly, at Day 61, Day 121 and at the end of RSV season 1, or at Day 1, Day 61 and end of RSV season 1, depending on the vaccination schedule.

Pfizer's meningococcal group A, C, W-135 and Y conjugate vaccine

Intervention Type BIOLOGICAL

3 doses of Pfizer's meningococcal group A, C, W-135 and Y conjugate vaccine administered intramuscularly, at Day 61, Day 121 and at the end of RSV season 1, or at Day 1, Day 61 and end of RSV season 1, depending on the vaccination schedule.

GSK's pneumococcal polysaccharide conjugate vaccine

Intervention Type BIOLOGICAL

3 doses of GSK's pneumococcal polysaccharide conjugate vaccine administered intramuscularly, at Day 61, Day 121 and at the end of RSV season 1, or at Day 31, Day 61 and end of RSV season 1, depending on the vaccination schedule.

GSK's meningococcal group A, C, W-135 and Y conjugate vaccine

Intervention Type BIOLOGICAL

2 doses of GSK's meningococcal group A, C, W-135 and Y conjugate vaccine administered intramuscularly, at Day 61 and at the end of RSV season 1, or at Day 31 and end of RSV season 1, depending on the vaccination schedule.

Placebo

Intervention Type DRUG

1 dose or 2 doses of Placebo administered intramuscularly at Day 31, or at Day 1 and Day 31, or at Day 1 and Day 61, or at Day 31 and Day 121, depending on the vaccination schedule.

Interventions

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RSV (GSK3389245A) lower dose formulation vaccine

1 dose of RSV (GSK3389245A) lower dose formulation vaccine administered intramuscularly at Day 1.

Intervention Type BIOLOGICAL

RSV (GSK3389245A) higher dose formulation vaccine

2 doses of RSV (GSK3389245A) higher dose formulation vaccine administered intramuscularly, at Day 1 and Day 31.

Intervention Type BIOLOGICAL

GSK's multicomponent meningococcal B vaccine

3 doses of GSK's multicomponent meningococcal B vaccine administered intramuscularly, at Day 61, Day 121 and at the end of RSV season 1, or at Day 1, Day 61 and end of RSV season 1, depending on the vaccination schedule.

Intervention Type BIOLOGICAL

Pfizer's meningococcal group A, C, W-135 and Y conjugate vaccine

3 doses of Pfizer's meningococcal group A, C, W-135 and Y conjugate vaccine administered intramuscularly, at Day 61, Day 121 and at the end of RSV season 1, or at Day 1, Day 61 and end of RSV season 1, depending on the vaccination schedule.

Intervention Type BIOLOGICAL

GSK's pneumococcal polysaccharide conjugate vaccine

3 doses of GSK's pneumococcal polysaccharide conjugate vaccine administered intramuscularly, at Day 61, Day 121 and at the end of RSV season 1, or at Day 31, Day 61 and end of RSV season 1, depending on the vaccination schedule.

Intervention Type BIOLOGICAL

GSK's meningococcal group A, C, W-135 and Y conjugate vaccine

2 doses of GSK's meningococcal group A, C, W-135 and Y conjugate vaccine administered intramuscularly, at Day 61 and at the end of RSV season 1, or at Day 31 and end of RSV season 1, depending on the vaccination schedule.

Intervention Type BIOLOGICAL

Placebo

1 dose or 2 doses of Placebo administered intramuscularly at Day 31, or at Day 1 and Day 31, or at Day 1 and Day 61, or at Day 31 and Day 121, depending on the vaccination schedule.

Intervention Type DRUG

Other Intervention Names

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Bexsero Nimenrix Synflorix Menveo

Eligibility Criteria

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Inclusion Criteria

* Subjects' parent(s)/Legally Acceptable Representative \[LAR(s)\] who, in the opinion of the investigator, can and will comply with the requirements of the protocol
* Written informed consent obtained from the parent(s)/LAR(s) of the subject prior to performing any study specific procedure.
* A male or female between and including 6 and 7 months of age (from the day the infant becomes 6 months of age until the day before the infant achieves 8 months of age) at the time of the first vaccination.
* Healthy subjects as established by medical history and clinical examination before entering into the study.
* Born full-term with a minimum birth weight of 2.5 kilograms (kg).
* Subjects' parent(s)/LAR(s) need to have access to a consistent mean of telephone contact or computer.

Exclusion Criteria

* Child in care
* Use of any investigational or non-registered product other than the study vaccine during the period starting 30 days before the first dose of study vaccine (Day -29 to Day 1), or planned use during the study period.
* Chronic administration of immunosuppressants or other immune-modifying drugs during the period starting six months prior to the first vaccine. For corticosteroids, this will mean prednisone ≥ 0.5 milligrams (mg)/kg/day (for pediatric subjects), or equivalent. Topical steroids are allowed.
* Administration of long-acting immune-modifying drugs or planned administration at any time during the study period.
* Administration of immunoglobulins and/or any blood products during the period starting three months before the first dose of study vaccine or planned administration during the study period.
* Planned administration/administration of a vaccine not foreseen by the study protocol in the period starting 30 days before the first dose and ending 30 days after the last dose of vaccine administration, with the exception of scheduled routine pediatric vaccines. Scheduled routine pediatric vaccines may be administered ≥ 7 days before a dose of study vaccine or ≥ 7 days following a dose of study vaccine, with the exception of live viral vaccines which may be administered ≥ 14 days before a dose or ≥ 7 days after a dose.
* Acute or chronic, clinically significant pulmonary, cardiovascular, hepatic or renal functional abnormality, as determined by physical examination or laboratory screening tests.
* A history of, or on-going confirmed RSV disease or highly compatible clinical picture.
* Serious chronic illness.
* Major congenital defects.
* History of any neurological disorders or seizures.
* History of or current autoimmune disease.
* History of recurrent wheezing in the subject's lifetime.
* History of chronic cough.
* Previous hospitalization for lower respiratory illnesses.
* Previous, current or planned administration of Synagis (palivizumab).
* Neurological complications following any prior vaccination.
* Born to a mother known or suspected to be Human Immunodeficiency Virus (HIV)-positive .
* Any confirmed or suspected immunosuppressive or immunodeficient condition, based on medical history and physical examination .
* Family history of congenital or hereditary immunodeficiency.
* Previous vaccination with a recombinant simian or human adenoviral vaccine.
* History of any reaction or hypersensitivity to any component of the vaccines (investigational or control) or placebo used in this study or any contraindication to them.
* Hypersensitivity to latex.
* Current severe eczema.
* Acute disease and/or fever at the time of enrolment (Visit 1).
* Any clinically significant Grade 1 or any ≥ Grade 2 hematological or biochemical laboratory abnormality detected at the last screening blood sampling.
* Any medical condition that in the judgment of the investigator would make intramuscular (IM) injection unsafe.
* Any other conditions that the investigator judges may interfere with study procedures, findings.
* Any conditions that could constitute a risk for the subjects while participating to this study.
* Weight below the fifth percentile of the local weight-for-age curve according to the World Health Organization (WHO) weight- for- age tables. Participating in another clinical study, at any time during the study period, in which the subject or mother (if breastfeeding) has been or will be exposed to an investigational or a non-investigational vaccine/product.
* Planned move to a location that will prohibit participating in the trial until study end.
* For Thailand only, subjects who have received Synflorix prior to enrolment.
Minimum Eligible Age

6 Months

Maximum Eligible Age

7 Months

Eligible Sex

ALL

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

Atlanta, Georgia, United States

Site Status

GSK Investigational Site

Nampa, Idaho, United States

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GSK Investigational Site

Louisville, Kentucky, United States

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GSK Investigational Site

Baltimore, Maryland, United States

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GSK Investigational Site

Belo Horizonte, Minas Gerais, Brazil

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GSK Investigational Site

Ribeirão Preto, São Paulo, Brazil

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GSK Investigational Site

Halifax, Nova Scotia, Canada

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GSK Investigational Site

Montreal, Quebec, Canada

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GSK Investigational Site

Québec, , Canada

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GSK Investigational Site

Cali, , Colombia

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GSK Investigational Site

Järvenpää, , Finland

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GSK Investigational Site

Tampere, , Finland

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GSK Investigational Site

Turku, , Finland

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GSK Investigational Site

Rome, Lazio, Italy

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GSK Investigational Site

México, , Mexico

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GSK Investigational Site

Chiriquí, , Panama

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GSK Investigational Site

Panama City, , Panama

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GSK Investigational Site

Panama City, , Panama

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GSK Investigational Site

Dębica, , Poland

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Gdansk, , Poland

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Trzebnica, , Poland

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Warsaw, , Poland

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Wroclaw, , Poland

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Burgos, , Spain

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Madrid, , Spain

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GSK Investigational Site

Madrid, , Spain

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GSK Investigational Site

Madrid, , Spain

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GSK Investigational Site

Majadahonda (Madrid), , Spain

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GSK Investigational Site

Santiago de Compostela, , Spain

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GSK Investigational Site

Seville, , Spain

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GSK Investigational Site

Valencia, , Spain

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GSK Investigational Site

Bangkok, , Thailand

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GSK Investigational Site

Eskişehir, , Turkey (Türkiye)

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GSK Investigational Site

Izmir, , Turkey (Türkiye)

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GSK Investigational Site

Kayseri, , Turkey (Türkiye)

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GSK Investigational Site

Manchester, , United Kingdom

Site Status

GSK Investigational Site

Southampton, , United Kingdom

Site Status

Countries

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United States Brazil Canada Colombia Finland Italy Mexico Panama Poland Spain Thailand Turkey (Türkiye) United Kingdom

References

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Saez-Llorens X, Norero X, Mussi-Pinhata MM, Luciani K, de la Cueva IS, Diez-Domingo J, Lopez-Medina E, Epalza C, Brzostek J, Szymanski H, Boucher FD, Cetin BS, De Leon T, Dinleyici EC, Gabriel MAM, Ince T, Macias-Parra M, Langley JM, Martinon-Torres F, Ramet M, Kuchar E, Pinto J, Puthanakit T, Baquero-Artigao F, Gattinara GC, Arribas JMM, Ramos Amador JT, Szenborn L, Tapiero B, Anderson EJ, Campbell JD, Faust SN, Nikic V, Zhou Y, Pu W, Friel D, Dieussaert I, Lopez AG, McPhee R, Stoszek SK, Vanhoutte N. Safety and Immunogenicity of a ChAd155-Vectored Respiratory Syncytial Virus Vaccine in Infants 6-7 Months of age: A Phase 1/2 Randomized Trial. J Infect Dis. 2024 Jan 12;229(1):95-107. doi: 10.1093/infdis/jiad271.

Reference Type DERIVED
PMID: 37477875 (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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2018-000431-27

Identifier Type: EUDRACT_NUMBER

Identifier Source: secondary_id

204894

Identifier Type: -

Identifier Source: org_study_id

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