Respiratory Tract Infections Clinical Trial
Official title:
Phase 1, First in Human Study to Evaluate the Safety, Tolerability and Immunogenicity of Ad26.RSV.FA2 Followed by Ad35.RSV.FA2 in Healthy Adult Volunteers
The purpose of this study is to assess the safety and tolerability of intramuscular prime-boost regimens of Ad26.RSV.FA2 given either once or twice followed by Ad35.RSV.FA2 (human adenovirus-vectored vaccine candidate) in healthy participants.
This is a single-center, randomized (study vaccine assigned to participants by chance), placebo-controlled study (an inactive substance; a pretend treatment [with no vaccine in it] that is compared in a clinical trial with a vaccine to test if the vaccine has a real effect), double-blind (neither the researchers nor the participants know what treatment the participant is receiving) Phase 1 study in healthy participants. The study comprises a 4-week screening period; vaccination for each participant on Days 1, 85, and, 169; a 28-day follow-up period performed after each vaccination and a final visit at Day 337. Approximately 32 Participants will be randomized in parallel in a 3:3:2 ratio to 3 treatment groups (Group 1/2/3) to receive either Ad26.RSV.FA2 or Ad35.RSV.FA2 or placebo. The study duration will be approximately 52 weeks. Blood samples for immunogenicity will be collected. Participant's safety will be evaluated throughout the study. ;
Allocation: Randomized, Endpoint Classification: Safety Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Caregiver, Investigator), Primary Purpose: Prevention
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