Marburg Virus Disease Clinical Trial
Official title:
A Phase 2, Randomized, Double-blind, Placebo-Controlled Trial to Evaluate Safety, Tolerability, and Immune Responses of an Investigational Monovalent Chimpanzee Adenoviral-Vectored Marburg Virus Vaccine in Healthy Adults
A Phase 2, Randomized, Double-blind, Placebo-Controlled Trial to Evaluate Safety, Tolerability, and Immune Responses of an Investigational Monovalent Chimpanzee Adenoviral-Vectored Marburg Virus Vaccine in Healthy Adults
This is a multi-center, double-blinded, placebo-controlled, Phase II study to evaluate safety, tolerability, and immunogenicity of a single dose of cAd3-Marburg vaccine in healthy adults up to 70 years of age, in Uganda and Kenya. The study will enroll 125 eligible participants randomized 4:1 to receive the cAd3-Marburg vaccine at 1.0 × 10^11 PU dose or placebo (0.9% sodium chloride (NaCl) solution) at Day 1, intramuscularly in deltoid muscle. Participants will be screened for eligibility up to 28 days before enrollment. Enrollment will be staggered, starting with healthy adults 18 to 50 years of age (inclusive). Upon enrollment of minimum 25 younger adult participants (sentinel), the safety data up to 7 days post vaccination of these 25 sentinel participants will be reviewed by the independent DSMB. Progression to enrollment of the older adults (>50 to 70 years of age) will be dependent on the unblinded review of the Data Safety Monitoring Board (DSMB). Safety and immunogenicity will be assessed at Days 1, 8, 15, 29, 85, 169, and will conclude at the end of study visit on Day 366. ;
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