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A Phase I Study to Assess Ebola Vaccines cAd3-EBO Z and MVA-EBO Z

NCT02451891 · Status: TERMINATED · Phase: PHASE1 · Type: INTERVENTIONAL · Enrollment: 38

Last updated 2025-12-18

No results posted yet for this study

Summary

This is a clinical trial in which healthy volunteers will be administered experimental Ebola vaccines. The investigators will vaccinate four groups of volunteers.

Group one will receive the MVA-EBO Z vaccine once at the dose of 1 x 10\^8 pfu.

Three groups will receive the prime vaccine cAd3-EBO Z followed by the boost vaccine, MVA EBO Z. The second group of volunteers will receive the boost vaccine after 14 +/-7 days at a dose of 1 x 10\^8 pfu and the third and fourth group, after 28 +/- 7 days but at different concentrations of MVA-EBO Z (1 x 10\^8 pfu for group 3 and 1.5 x 10\^8 pfu for group 4).

The study will assess the safety of the vaccinations, and the immune responses to vaccination. Immune responses are measured by tests on blood samples.

The cAd3-EBO Z and MVA-EBO Z vaccines are called viral vectored vaccines. They are made from viruses which are modified so that they cannot multiply. The viruses have extra DNA in them so that after injection, the body makes Ebola proteins (but Ebola does not develop), so that the immune system builds a response to Ebola without having been infected by it.

Healthy volunteers will be recruited in Oxford and London England. The study will be funded by the Wellcome Trust.

Conditions

  • Ebola Virus Disease

Interventions

BIOLOGICAL

MVA-EBO Z

BIOLOGICAL

ChAd3-EBO Z

Sponsors & Collaborators

  • University of Oxford

    lead OTHER

Study Design

Allocation
NON_RANDOMIZED
Purpose
PREVENTION
Masking
NONE
Model
PARALLEL

Eligibility

Min Age
18 Years
Max Age
50 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2015-05-06
Primary Completion
2017-08-22
Completion
2017-08-22

Countries

  • United Kingdom

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT02451891 on ClinicalTrials.gov