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NCT04723602 · ClinicalTrials.gov registry record · Phase 1

Evaluation of Safety, Tolerability and Immune Responses of Ebola-S and Marburg Vaccines in Healthy Adults

A Phase 1 study, sponsored by Albert B. Sabin Vaccine Institute.

Completed
Registry status
Phase 1
Development phase
32
Enrollment target

NCT04723602: Completed Phase 1 study, sponsored by Albert B. Sabin Vaccine Institute.

NCT04723602 is a Phase 1 study that has completed, run by Albert B. Sabin Vaccine Institute. The registered enrollment target is 32 participants, below the 60-participant average among 29,502 other Phase 1 trials with a reported enrollment target (47% lower). According to ClinicalTrials.gov, the official US trial registry.

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The verdict

NCT04723602, a Phase 1 study, has completed, sponsored by Albert B. Sabin Vaccine Institute.

COMPLETED
Registry status
Phase 1
Development phase
32 participants
Enrollment target

Study Summary

Primary Objective: • To evaluate the safety and tolerability of cAd3-EBO-S and cAd3 Marburg vaccines when administered Intramuscular (IM) at a dose of 1 x 10\^11 particle units (PU) to healthy adults. Secondary Objectives: * To evaluate the antibody response to Monovalent Chimpanzee Adenoviral Vectored Filovirus Ebola-S (cAd3-EBO-S) and Monovalent Chimpanzee Adenoviral Vectored Filovirus (Marburg) (cAd3 Marburg) vaccines as assessed by antigen glycoprotein (GP) specific (enzyme-linked immunosorbent assay) ELISA * To collect sufficient post-vaccination plasma to support further development of filovirus assays

Primary Outcome

Safety of Ebola and Marburg vaccines, as seen in local reactogenicity signs and symptoms with diary questionnaire card.

Interventions

  • BIOLOGICAL cAd3-Marburg
  • BIOLOGICAL cAd3-EBO-S

Trial Details

FieldValue
Enrollment Target 32 participants
Start Date 2021-01-06
Est. Completion 2021-12-14
Phase Phase 1

What the finished NCT04723602 record still lists

NCT04723602 is an interventional study that assigns participants to a tested intervention. The registry caps enrollment at 32 participants, a relatively small participant target, below the 60-participant average among 29,502 other Phase 1 trials with a reported enrollment target (47% lower).

The record links to 0 conditions, and to 2 interventions - of which cAd3-Marburg is the first listed.

NCT04723602 does not publish any study locations in the registry export this page uses.

Frequently Asked Questions

What is clinical trial NCT04723602 about?

NCT04723602 is a clinical study titled "Evaluation of Safety, Tolerability and Immune Responses of Ebola-S and Marburg Vaccines in Healthy Adults". Primary Objective: • To evaluate the safety and tolerability of cAd3-EBO-S and cAd3 Marburg vaccines when administered Intramuscular (IM) at a dose of 1 x 10\^11 particle units (PU) to healthy adults. Secondary Objectives: * To evaluate the antibody response to Monovalent Chimpanzee Adenoviral Ve...

What is the current status of trial NCT04723602?

This trial is currently completed. It is a Phase 1 study. The enrollment target is 32 participants. The study started on 2021-01-06. Estimated completion is 2021-12-14.

What interventions are being tested in trial NCT04723602?

The interventions under investigation include: cAd3-Marburg (BIOLOGICAL), cAd3-EBO-S (BIOLOGICAL).

Who is sponsoring clinical trial NCT04723602?

This trial is sponsored by Albert B. Sabin Vaccine Institute, which has 4 total clinical trials registered on ClinicalTrials.gov.

How this trial's enrollment target compares

Where NCT04723602's enrollment target sits among peer trials

32 1296th of 2000 higher than 679 of 2,000 other Phase 1 trials

participants (enrollment target), bucketed by value

Each bar is a band; taller bars hold more other Phase 1 trials. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.

Source ClinicalTrials.gov registry export · 2026-08-08

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Source: ClinicalTrials.gov NCT04723602, the US trial registry maintained by the National Library of Medicine. NCT04723602 (small enrollment · none site footprint · completed) retrieved and formatted by PlainTrial, see methodology.