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
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
3 other identifiers
interventional
38
8 countries
25
Brief Summary
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.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for phase_1
Started Jan 2019
Typical duration for phase_1
25 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
June 20, 2018
CompletedFirst Posted
Study publicly available on registry
July 31, 2018
CompletedStudy Start
First participant enrolled
January 21, 2019
CompletedPrimary Completion
Last participant's last visit for primary outcome
November 2, 2021
CompletedStudy Completion
Last participant's last visit for all outcomes
November 2, 2021
CompletedResults Posted
Study results publicly available
November 30, 2022
CompletedFebruary 4, 2025
January 1, 2025
2.8 years
June 20, 2018
November 2, 2022
January 31, 2025
Conditions
Outcome Measures
Primary Outcomes (7)
Number of Participants With Solicited Local and Systemic Adverse Events (AEs) for 7 Days After First Vaccination
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
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
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
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
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
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)
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 Outcomes (5)
Titers of Neutralizing Antibodies to Respiratory Syncytial Virus (RSV) A2 Strain
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)
Days 1, 8, 85, and 267 (End of first RSV season)
Post-Fusion A IgG Serum Antibody Response as Assessed by ELISA
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
Baseline (Day 1) and Day 85
Number of Participants With Severe RSV-lower Respiratory Tract Infection (LRTI)
Up to 2 year 10 months
Study Arms (2)
Group 1: RSV Seronegative Toddlers (Ad26.RSV.preF)
EXPERIMENTALRespiratory 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.
Group 2: RSV Seronegative Toddlers (Placebo/Nimenrix)
PLACEBO COMPARATORRSV 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.
Interventions
Ad26.RSV.preF will be administered as IM injection at a dose of 2.5\*10\^10 vp.
Placebo will be administered as IM injection of sterile 0.9 percent (%) saline for injection.
Nimenrix will be administered as 0.5 milliliter (mL) solution for IM injection.
Eligibility Criteria
You may qualify if:
- 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
You may not qualify if:
- 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
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (25)
Barwon Health
Geelong, 3220, Australia
Telethon Kids Institute
Nedlands, 6009, Australia
Murdoch Children's Research Institute
Parkville, 3052, Australia
Complexo Hospital de Clinicas - UFPR
Curitiba, 80030-110, Brazil
Hospital Pequeno Principe
Curitiba, 80250-060, Brazil
Irmandade Santa Casa de Misericordia de Porto Alegre
Porto Alegre, 90035-074, Brazil
Uniao Brasileira de Educacao e Assistencia Hospital Sao Lucas da PUCRS
Porto Alegre, 90610-000, Brazil
Dalhousie University
Halifax, Nova Scotia, B3K 6R8, Canada
Children's Hospital of Eastern Ontario
Ottawa, Ontario, K1H 8L1, Canada
McGill University Health Centre - Vaccine Study Centre
Pierrefonds, Quebec, H9H 4Y6, Canada
CHU de Quebec Universite Laval
Québec, Quebec, G1V 4G2, Canada
Järvenpään rokotetutkimusklinikka
Jarvenpaa, 04400, Finland
Tampereen rokotetutkimusklinikka
Tampere, 33100, Finland
Turun rokotetutkimusklinikka
Turku, 20520, Finland
Jerzy Brzostek Prywatny Gabinet Lekarski
Dębica, 39-200, Poland
Szpital im Swietej Jadwigi Slaskiej Oddzial Pediatryczny z Pododdzialem Niemowlecym
Trzebnica, 55 100, Poland
Hosp. Gral. Univ. Gregorio Maranon
Madrid, 28007, Spain
Hosp. Univ. 12 de Octubre
Madrid, 28041, Spain
Hosp. Univ. La Paz
Madrid, 28046, Spain
Hosp. Clinico Univ. de Santiago
Santiago de Compostela, 15706, Spain
Sachsska barn-och ungdomssjukhuset
Stockholm, 11861, Sweden
Norrlands Universitetssjukhus
Umeå, 90185, Sweden
Imperial College London
London, W21PG, United Kingdom
Royal Manchester Children's Hospital
Manchester, M13 9WL, United Kingdom
University Hospital Southampton NHS Foundation Trust
Southampton, SO166YD, United Kingdom
Related Publications (1)
Langley JM, Nolan TM, Ramet M, Richmond PC, Rosario Filho N, Haazen W, van den Berg SPH, Williams K, Bastian AR, Omoruyi E, Williams Durkin J, Salisch N, Van Geet G, van Duijnhoven W, Heijnen E, Callendret B. A Phase 1/2a Study Evaluating Safety and Immunogenicity of Ad26.RSV.preF in RSV-seronegative Toddlers Aged 12-24 Months. Open Forum Infect Dis. 2024 Aug 8;11(9):ofae453. doi: 10.1093/ofid/ofae453. eCollection 2024 Sep.
PMID: 39220658DERIVED
Results Point of Contact
- Title
- Clinical Franchise Leader
- Organization
- Janssen Vaccines & Prevention B.V
Study Officials
- STUDY DIRECTOR
Janssen Vaccines & Prevention B.V. Clinical Trial
Janssen Vaccines & Prevention B.V.
Publication Agreements
- PI is Sponsor Employee
- No
- Restriction Type
- OTHER
- Restrictive Agreement
- Yes
Study Design
- Study Type
- interventional
- Phase
- phase 1
- Allocation
- RANDOMIZED
- Masking
- DOUBLE
- Who Masked
- PARTICIPANT, INVESTIGATOR
- Purpose
- PREVENTION
- Intervention Model
- PARALLEL
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
June 20, 2018
First Posted
July 31, 2018
Study Start
January 21, 2019
Primary Completion
November 2, 2021
Study Completion
November 2, 2021
Last Updated
February 4, 2025
Results First Posted
November 30, 2022
Record last verified: 2025-01