A Study to Evaluate the Safety, Reactogenicity, and Immunogenicity of Adenovirus Serotype 26 Based Respiratory Syncytial Virus Pre-fusion (Ad26.RSV.Pre-F) Vaccine in RSV-Seronegative Toddlers 12 to 24 Months of Age

January 31, 2025 updated by: Janssen Vaccines & Prevention B.V.

A Randomized, Controlled, Observer-blind, Phase 1/2a Study to Evaluate the Safety, Reactogenicity, and Immunogenicity of Ad26.RSV.preF in RSV-seronegative Toddlers 12 to 24 Months of Age

The purpose of this study is to assess the safety and reactogenicity of an intramuscular regimen of 3 doses of 2.5*10^10 viral particles (vp) of adenovirus serotype 26 based respiratory syncytial virus pre-fusion protein (Ad26.RSV.preF) vaccine in RSV-seronegative toddlers aged 12 to 24 months.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

RSV is considered the most important cause of serious acute respiratory illness in children under 5 years of age. Ad26.RSV.preF (JNJ-64400141) investigational vaccine is a replication-incompetent serotype 26 adenoviral vector (Ad26) containing a deoxyribonucleic acid (DNA) transgene that encodes for the F protein derived from the respiratory syncytial virus (RSV) A2 strain stabilized in the pre-fusion conformation (Ad26.RSV.preF). The study will evaluate whether Ad26.RSV.preF is safe, well-tolerated, and immunogenic in RSV-seronegative toddlers. The study will have 3 phases: a screening phase (up to 6 weeks before the first dose), a vaccination phase (34 weeks), and a safety follow-up phase through 2 RSV seasons after the first dose. RSV infection will be monitored by active and passive surveillance. The total duration of the study will be approximately 26 months.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
38

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 2
  • Phase 1

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Australia
      • Geelong, Australia, 3220
        • Barwon Health
      • Nedlands, Australia, 6009
        • Telethon Kids Institute
      • Parkville, Australia, 3052
        • Murdoch Children's Research Institute
  • Brazil
      • Curitiba, Brazil, 80030-110
        • Complexo Hospital de Clinicas - UFPR
      • Curitiba, Brazil, 80250-060
        • Hospital Pequeno Principe
      • Porto Alegre, Brazil, 90035-074
        • Irmandade Santa Casa de Misericordia de Porto Alegre
      • Porto Alegre, Brazil, 90610-000
        • Uniao Brasileira de Educacao e Assistencia Hospital Sao Lucas da PUCRS
  • Canada
      • Quebec, Canada, G1V 4G2
        • CHU de Québec Université Laval
    • Nova Scotia
      • Halifax, Nova Scotia, Canada, B3K 6R8
        • Dalhousie University
    • Ontario
      • Ottawa, Ontario, Canada, K1H 8L1
        • Children's Hospital of Eastern Ontario
    • Quebec
      • Pierrefonds, Quebec, Canada, H9H 4Y6
        • McGill University Health Centre - Vaccine Study Centre
  • Finland
      • Järvenpää, Finland, 04400
        • Järvenpään Rokotetutkimusklinikka
      • Tampere, Finland, 33100
        • Tampereen Rokotetutkimusklinikka
      • Turku, Finland, 20520
        • Turun Rokotetutkimusklinikka
  • Poland
      • Debica, Poland, 39-200
        • Jerzy Brzostek Prywatny Gabinet Lekarski
      • Trzebnica, Poland, 55 100
        • Szpital im Swietej Jadwigi Slaskiej Oddzial Pediatryczny z Pododdzialem Niemowlecym
  • Spain
      • Madrid, Spain, 28041
        • Hosp. Univ. 12 de Octubre
      • Madrid, Spain, 28046
        • Hosp. Univ. La Paz
      • Madrid, Spain, 28007
        • Hosp. Gral. Univ. Gregorio Maranon
      • Santiago de Compostela, Spain, 15706
        • Hosp. Clinico Univ. de Santiago
  • Sweden
      • Stockholm, Sweden, 11861
        • Sachsska barn-och ungdomssjukhuset
      • Umeå, Sweden, 90185
        • Norrlands Universitetssjukhus
  • United Kingdom
      • London, United Kingdom, W21PG
        • Imperial College London
      • Manchester, United Kingdom, M13 9WL
        • Royal Manchester Children's Hospital
      • Southampton, United Kingdom, SO166YD
        • University Hospital Southampton NHS Foundation Trust

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

1 year to 2 years (Child)

Accepts Healthy Volunteers

Yes

Description

Inclusion Criteria:

  • Participant who is seronegative for respiratory syncytial virus (RSV) within 42 days prior to dosing
  • Participant is the product of a normal term pregnancy greater than or equal to (>=)37 weeks, with a minimum birth weight of 2.5 kilogram (kg)
  • Participant must be in good health without any significant medical illness on the basis of physical examination, medical history, and vital signs performed at screening
  • Participant has received all routine immunizations appropriate for his or her age according to local guidelines
  • Each participant's parent(s)/legal guardian(s) must have access to a consistent means of contact either by telephone contact or email/computer

Exclusion Criteria:

  • Participant's weight is below tenth percentile according to World Health Organization (WHO) pediatric growth and weight charts
  • Participant has any clinically significant acute or chronic medical condition (for example, history of seizure disorders, bleeding/clotting disorder, autoimmune disease, active malignancy, systemic infections, congenital heart disease, history of any pulmonary condition requiring medication, atopy, reactive airway disease, medically-confirmed wheezing, bronchoconstriction or treatment with a beta 2 agonist, cystic fibrosis, bronchopulmonary dysplasia, chronic pulmonary disease, medically-confirmed apnea, hospitalization for respiratory illness, or mechanical ventilation for respiratory illness) that, in the opinion of the investigator, would preclude participation
  • Participant is in receipt of, or planning to receive, live attenuated vaccine (for example, measles, mumps and rubella [MMR] or varicella, but excluding rotavirus vaccine) within 28 days of each study vaccination (that is, before and after); other vaccines (for example, influenza, pertussis, polio or rotavirus) should be given at least 14 days before or 14 days after each study vaccination
  • Participant has known or suspected immunodeficiency, such as known human immunodeficiency virus (HIV) infection
  • Participant has a known allergy to vaccines or vaccine components (including any of the constituents of the study vaccine), or history of anaphylaxis or other serious adverse reactions to vaccines or vaccine components (including any of the constituents of the study vaccine). Participants with egg allergies can be enrolled

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Prevention
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Double

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Group 1: RSV Seronegative Toddlers (Ad26.RSV.preF)
Respiratory syncytial virus (RSV) seronegative toddlers will receive intramuscular (IM) injection of 2.5*10^10 viral particles (vp) of an adenovirus serotype 26- based vaccine encoding for the respiratory syncytial virus pre-fusion F-protein on Days 1, 29, and 57.
Biological: Ad26.RSV.preF
Ad26.RSV.preF will be administered as IM injection at a dose of 2.5*10^10 vp.
Other Names:
  • JNJ-64400141
Placebo Comparator: Group 2: RSV Seronegative Toddlers (Placebo/Nimenrix)
RSV seronegative toddlers will receive IM injection of placebo on Days 1, 29 and 57. Placebo can be replaced with Nimenrix on Day 57 in countries where applicable.
Biological: Placebo
Placebo will be administered as IM injection of sterile 0.9 percent (%) saline for injection.
Biological: Nimenrix
Nimenrix will be administered as 0.5 milliliter (mL) solution for IM injection.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Number of Participants With Solicited Local and Systemic Adverse Events (AEs) for 7 Days After First Vaccination
Time Frame: Up to Day 8 (7 days after first vaccination on Day 1)
An AE is any untoward medical event that occurs in a participants administered an investigational product, and it does not necessarily indicate only events with a clear causal relationship with the relevant investigational product. Solicited local and systemic AEs were precisely defined events that participants were specifically asked about and which were noted by participants in the diary. Solicited local AEs included injection-site pain/tenderness, injection-site erythema and injection-site swelling/induration. Solicited systemic AEs included fatigue, headache, nausea, myalgia and fever.
Up to Day 8 (7 days after first vaccination on Day 1)
Number of Participants With Solicited Local and Systemic AEs for 7 Days After Second Vaccination
Time Frame: Up to Day 36 (7 days after second vaccination on Day 29)
An AE is any untoward medical event that occurs in a participants administered an investigational product, and it does not necessarily indicate only events with a clear causal relationship with the relevant investigational product. Solicited local and systemic AEs were precisely defined events that participants were specifically asked about and which were noted by participants in the diary. Solicited local AEs included injection-site pain/tenderness, injection-site erythema and injection-site swelling/induration. Solicited systemic AEs included fatigue, headache, nausea, myalgia and fever.
Up to Day 36 (7 days after second vaccination on Day 29)
Number of Participants With Solicited Local and Systemic AEs for 7 Days After Third Vaccination
Time Frame: Up to Day 64 (7 days after third vaccination on Day 57)
An AE is any untoward medical event that occurs in a participants administered an investigational product, and it does not necessarily indicate only events with a clear causal relationship with the relevant investigational product. Solicited local and systemic AEs were precisely defined events that participants were specifically asked about and which were noted by participants in the diary. Solicited local AEs included injection-site pain/tenderness, injection-site erythema and injection-site swelling/induration. Solicited systemic AEs included fatigue, headache, nausea, myalgia and fever.
Up to Day 64 (7 days after third vaccination on Day 57)
Number of Participants With Unsolicited AEs for 28 Days After First Vaccination
Time Frame: Up to Day 29 (28 days after first vaccination on Day 1)
An AE is any untoward medical event that occurs in a participant administered an investigational product, and it does not necessarily indicate only events with a clear causal relationship with the relevant investigational product. Unsolicited AEs were precisely defined events that participants were not asked about and which were not noted by participants in the diary.
Up to Day 29 (28 days after first vaccination on Day 1)
Number of Participants With Unsolicited AEs for 28 Days After Second Vaccination
Time Frame: Up to Day 57 (28 days after second vaccination on Day 29)
An AE is any untoward medical event that occurs in a participants administered an investigational product, and it does not necessarily indicate only events with a clear causal relationship with the relevant investigational product. Unsolicited AEs were precisely defined events that participants were not asked about and which were not noted by participants in the diary.
Up to Day 57 (28 days after second vaccination on Day 29)
Number of Participants With Unsolicited AEs for 28 Days After Third Vaccination
Time Frame: Up to Day 85 (28 days after third vaccination on Day 57)
An AE is any untoward medical event that occurs in a participants administered an investigational product, and it does not necessarily indicate only events with a clear causal relationship with the relevant investigational product. Unsolicited AEs were precisely defined events that participants were not asked about and which were not noted by participants in the diary.
Up to Day 85 (28 days after third vaccination on Day 57)
Number of Participants With Serious Adverse Events (SAEs)
Time Frame: Up to 2 year 10 months
Number of participants with SAEs were reported. An AE is any untoward medical event that occurs in a participants administered an investigational product, and it does not necessarily indicate only events with a clear causal relationship with the relevant investigational product. SAE is any AE that results in: death, persistent or significant disability/incapacity, requires inpatient hospitalization or prolongation of existing hospitalization, is life-threatening experience, is a suspected transmission of any infectious agent via a medicinal product, is a congenital anomaly/birth defect and may jeopardize participant and/or may require medical or surgical intervention to prevent one of the outcomes listed above.
Up to 2 year 10 months

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Titers of Neutralizing Antibodies to Respiratory Syncytial Virus (RSV) A2 Strain
Time Frame: Days 1, 8, 85, and 267 (End of first RSV season)
Neutralizing antibody titers assessed by virus neutralizing antibodies (VNA) against the RSV A2 strain were expressed as 50% inhibitory concentration (IC50) units.
Days 1, 8, 85, and 267 (End of first RSV season)
Pre-Fusion A Immunoglobulin G (IgG) Serum Antibody Response as Assessed by Enzyme-linked Immunosorbent Assay (ELISA)
Time Frame: Days 1, 8, 85, and 267 (End of first RSV season)
Pre-fusion A IgG serum antibody response was assessed by ELISA.
Days 1, 8, 85, and 267 (End of first RSV season)
Post-Fusion A IgG Serum Antibody Response as Assessed by ELISA
Time Frame: Days 1, 8, 85, and 267 (End of first RSV season)
Post-fusion A IgG serum antibody response as assessed by ELISA was reported.
Days 1, 8, 85, and 267 (End of first RSV season)
T-cell Response (Percent [%]) to RSV F Peptides for T-helper (Th) 1 and Th2 Subtyping as Measured by Flow Cytometry
Time Frame: Baseline (Day 1) and Day 85
T-cell response (%) to RSV F peptides for T-helper Th1 and Th2 subtyping as measured by flow cytometry was planned to be assessed. Th1(% of Clusters of differentiation 4 [CD4]+ interferon gamma [IFN-g]+T cells; lower limit(s) of quantification [LLOQ]=0.05%) and Th2 (% of CD4+ interleukin [IL]-4+/IL-13+ and CD40L+T cells; LLOQ=0.07%) responses were determined by intracellular cytokines after RSV F peptide stimulation.
Baseline (Day 1) and Day 85
Number of Participants With Severe RSV-lower Respiratory Tract Infection (LRTI)
Time Frame: Up to 2 year 10 months
Number of participants with severe RSV-LRTI were reported.
Up to 2 year 10 months

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Janssen Vaccines & Prevention B.V.

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Study Director: Janssen Vaccines & Prevention B.V. Clinical Trial, Janssen Vaccines & Prevention B.V.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
January 21, 2019

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
November 2, 2021

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
November 2, 2021

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
June 20, 2018

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
July 20, 2018

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
July 31, 2018

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
March 25, 2025

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
January 31, 2025

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
January 1, 2025

More Information

Terms related to this study

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • CR108465
  • 2017-003859-36 (EudraCT Number)
  • VAC18194RSV2002 (Other Identifier: Janssen Vaccines & Prevention B.V.)

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

Yes

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

Yes

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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