CI

At a glance

ClinicalIndex Comparison Record
Phase 3Completed· 974 enrolled
Drug / intervention
Ad26.ZEBOV +2 morebiological
Likely dose
Ad26.ZEBOV 0.5 mLfrom record
Structured eligibility isn't available for this trial yet — see the full criteria in the Eligibility tab below.

Standardized by ClinicalIndex from the ClinicalTrials.gov record · verify against the source.

Search/NCT04228783
NCT04228783Phase 3Completed

A Phase 3, Randomized, Double-blind, Placebo-controlled Study to Evaluate the Immunogenicity, Safety, Reactogenicity, and Consistency of a Heterologous 2-dose Vaccine Regimen Using 3 Consecutive Lots of Ad26.ZEBOV and MVA-BN®-Filo in Adult Participants

Janssen Vaccines & Prevention B.V.·interventional·Posted Jan 14, 2020·Updated May 25, 2025

In Brief

A Phase 3 clinical trial evaluating Ad26.ZEBOV, MVA-BN-Filo, and 1 other intervention for Ebola. Completed, enrolled 974 participants across 7 sites.

Detailed Summary

The purpose of this study is to demonstrate that the paired 2-dose vaccine regimens from 3 consecutively manufactured lots of Adenovirus serotype 26 encoding the Ebola virus Mayinga glycoprotein (Ad26.ZEBOV) as Dose 1 and 3 consecutively manufactured lots of Modified Vaccinia Ankara Bavarian Nordic vector encoding multiple filovirus proteins (MVA-BN-Filo) including the ebola virus mayinga glycoprotein as Dose 2, administered at a 56-day interval, induce an equivalent humoral immune response.

Study Details

Study Typeinterventional
Allocation--
Masking--
Primary Purpose--
ConditionsEbola
CountriesUnited States
Collaborators--

Timeline

Phase 3CompletedFinished
2020202120222023202420252026
First PostedJan 14, 2020
Enrollment StartFeb 18, 2020
Primary CompletionApr 25, 2022
TodayJul 2, 2026
Enrollment to primary: 2.2 yearsPosted 6.5 years ago

Interventions

Ad26.ZEBOVbiological

Participants will receive IM injection (0.5 mL) of Ad26.ZEBOV as Dose 1 (5\*10\^10 vp, Lot A, B, and C) on Day 1 (Groups 1, 2, 3 and 5) and an Ad26.ZEBOV booster dose on Day 177 (Group 5).

MVA-BN-Filobiological

Participants will receive IM injection (0.5 mL) of MVA-BN-Filo as Dose 2 (1\*10\^8 Inf U, Lot 1, 2, 3 and 5) on Day 57.

Placebobiological

Participants will receive IM injection (0.5 mL) of placebo (0.9 % saline) as Dose 1 on Day 1, followed by placebo as Dose 2 on Day 57 (Groups 4 and 6) and a booster of matching placebo on Day 177 (Group 6).