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Ebola DiseasePhase 2NCT02575456

A Clinical Trial to Evaluate the Recombinant Human Type5 Adenovirus Vector Based Ebola Virus Disease Vaccine

A Phase 2 study testing Ebola Vaccine in people with Ebola Disease, run by Jiangsu Province Centers for Disease Control and Prevention at 1 site in Sierra Leone.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

A Single-Center, Randomized, Blind, Phase II Clinical Trial to Evaluate the Safety and Immunogenicity of the Adenovirus Type 5 Vector Based Ebola Virus Disease Vaccine (Ad5-EBOV) in Healthy Adults Aged Between 18 and 50 years in Sierra Leone. Read more about this study

Who is it for?
Ages 8 to 50 yearsHealthy volunteers can take part
Conditions the study is for
Ebola Disease
What is being tested?
Ebola Vaccine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
500 participants
Where
1 siteSierra Leone
Study dates
Oct 2015to Jul 2016
Phase
Phase 2
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 8 to 50 years
  • All sexes
  • Healthy volunteers accepted
  • Child, Adult

Who may be able to join

  • Aged between 18 and 50 years
  • Able to understand the content of informed consent and signed the informed consent
  • Able and willing to complete all the secluded study process during the whole study follow-up period (about 6 months).
  • Negative in HIV diagnostic blood test on day of enrollment
  • Axillary temperature ≤37.0°C on the day of enrollment
  • Non-pregnant females with a negative result in the urine pregnancy test on day of enrollment
  • General good health as established by medical history and physical examination.

Who cannot join

  • Infected by Ebola virus (inquiry)
  • Vaccination with other Ebola vaccine (inquiry)
  • HIV infection or other serious immunodeficiency disease (inquiry)
  • Allergic history of any vaccination or drugs, or allergic to any ingredient of the Ad5-EBOV, such as mannitol
  • Family history of brain or mental disease
  • Woman who is pregnant or breast-feeding
Show all 16Show fewer
  • Any acute fever disease or infections in last 7 days
  • Major congenital defects or not well-controlled chronic illness
  • Asplenia or functional asplenia
  • Platelet disorder or other bleeding disorder
  • Faint at the sight of blood or needles.
  • Prior administration of immunodepressant or corticosteroids, antianaphylaxis treatment, cytotoxic treatment in last 6 months
  • Prior administration of other research medicines in last 1 month
  • Prior administration of attenuated vaccine(s) in the last one month
  • Prior administration of inactivated vaccine(s) in the last 14 days
  • Any condition that in the opinion of the investigators may interfere with the participants' compliance or evaluation of study objectives

Trial locations and contacts

1 site in 1 country.

Sierra Leone1 site
  • Dr. Alie H Wurie

    Freetown

Other trials in Sierra Leone

About this study

Official title: A Single-Center, Randomized, Blind, Phase II Clinical Trial to Evaluate the Safety and Immunogenicity of the Adenovirus Type 5 Vector Based Ebola Virus Disease Vaccine (Ad5-EBOV) in Healthy Adults in Sierra Leone

A Single-Center, Randomized, Blind, Phase II Clinical Trial to Evaluate the Safety and Immunogenicity of the Adenovirus Type 5 Vector Based Ebola Virus Disease Vaccine (Ad5-EBOV) in Healthy Adults Aged Between 18 and 50 years in Sierra Leone.

Conditions
Ebola Disease
Being tested
Ebola Vaccine, Placebo
Medical subject headings
Hemorrhagic Fever, Ebola

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Ebola VaccineBiological

  • PlaceboBiological

    control

Study groups in NCT02575456
Study groupRoleWhat they receive
Group AExperimental(4×10^10vp/vial, 4 vials): 1 ml sterilization injection water per dose to dilute 2 vials (4×10^10 vp/vial), one shot in each arm, total dose of 1.6×10^11vp. The inoculation site was the central lateral deltoid in the upper arm, and inoculation route was intramuscular injection
Receives: Biological: Ebola Vaccine
Group BExperimental(4×10^10vp/vial, 2 vials): 1 ml sterilization injection water per dose to dilute 1 vial (4×10^10vp/vial), total dose of 8×10^10vp, one shot in each arm. The inoculation site was the central lateral deltoid in the upper arm, and inoculation route was intramuscular injection
Receives: Biological: Ebola Vaccine
Group CPlacebo comparator(0 vp/ vial, 2 vials):1 ml sterilization injection water per dose to dilute 1 vial, total dose of 0 vp. The inoculation site was the central lateral deltoid in the upper arm, and inoculation route was intramuscular injection
Receives: Biological: Placebo

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Occurrence of solicited adverse reactions after vaccination

    Measured: 7 days after vaccination

  2. ELISA antigen-specific assays for antibody to GP responses

    Measured: 14 days after vaccination

  3. ELISA antigen-specific assays for antibody to GP responses

    Measured: 28 days after vaccination

  4. ELISA antigen-specific assays for antibody to GP responses

    Measured: 168 days after vaccination

Secondary outcomes (6)
  1. Occurrence of unsolicited adverse reactions after vaccination

    Measured: 28 days after vaccination

  2. Occurrence of serious adverse reaction during the whole follow-up period

    Measured: 6 months

  3. Post-vaccination Rate of infected with HIV

    Measured: 6 months

  4. Neutralizing antibody titers response to human Ad5

    Measured: 14 days after vaccination

  5. Neutralizing antibody titers response to human Ad5

    Measured: 28 days after vaccination

  6. Neutralizing antibody titers response to human Ad5

    Measured: 168 days after vaccination

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted14 Oct 2015 (estimated)
  2. Study startOct 2015
  3. Primary completionJun 2016
  4. Study completionJul 2016

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 2
Primary purpose
Prevention
Allocation
Randomised
Intervention model
Parallel groups
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
500 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02575456
Sponsor's protocol ID
JSVCT024
Status last verified
Dec 2015
First submitted
11 Oct 2015
Last updated
1 Sep 2016
Results posted
No
Data monitoring committee
Yes

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing Ebola Vaccine in people with Ebola Disease, run by Jiangsu Province Centers for Disease Control and Prevention at 1 site in Sierra Leone.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 7 inclusion and 16 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 1 Sep 2016. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Sierra Leone. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Occurrence of solicited adverse reactions after vaccination (time frame: 7 days after vaccination). The study lists 4 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 1 Sep 2016.

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