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TuberculosisPhase 1NCT00731471

A Phase I Study of a New Tuberculosis (TB) Vaccine, MVA85A, in Healthy Volunteers With HIV

A Phase 1 study testing MVA85A in people with Tuberculosis, run by University of Oxford at 1 site in Senegal.

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

This is an open Phase I study of a candidate TB vaccine, MVA85A, in healthy subjects who are infected with HIV. It is designed to study the safety and immunogenicity of the vaccine. Read more about this study

Who is it for?
Ages 18 to 50 years
Conditions the study is for
Tuberculosis
What is being tested?
MVA85A
Type of treatment
Vaccines
Could I receive a placebo?
No, everyone receives an active treatment
How many people
24 participants
Where
1 siteSenegal
Study dates
Aug 2008to Jan 2011
Phase
Phase 1
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 18 to 50 years
  • All sexes
  • No healthy volunteers
  • Adult

Who may be able to join

  • Healthy adults aged 18 to 50 years
  • Resident in or near Dakar for the duration of the study
  • Willingness to allow the investigators to discuss the volunteer's medical history with the volunteer's HIV lead physician
  • Willing to use effective contraception throughout duration of study (if female)
  • HIV antibody positive; diagnosed at least 6 months previously
  • CD4 count >300
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  • Arm 1: HIV viral load not >100,000 copies per millilitre
  • Arm 2: Undetectable HIV viral load
  • Written informed consent

Who cannot join

  • Any clinically significant abnormal finding on screening biochemistry or haematology blood tests or on urinalysis
  • Group 1 only: Any ARV therapy within the past 6 months
  • Previous history of TB disease and/or treatment
  • Any AIDS defining illness
  • Group 1: CD4 count nadir <300
  • Group 2: CD4 count nadir <100
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  • CXR showing TB or evidence of other active infection
  • Prior receipt of a recombinant MVA or Fowlpox vaccine
  • Use of any investigational or non-registered drug, live vaccine or medical device other than the study vaccine within 30 days preceding dosing of study vaccine, or planned use during the study period
  • Administration of chronic (defined as more than 14 days) immunosuppressive drugs or other immune modifying drugs within six months of vaccination. (For corticosteroids, this will mean prednisolone, or equivalent, ≥ 0.5 mg/kg/day. Inhaled and topical steroids are allowed.)
  • History of allergic disease or reactions likely to be exacerbated by any component of the vaccine, e.g. egg products
  • Presence of any underlying disease that compromises the diagnosis and evaluation of response to the vaccine (including evidence of cardiovascular disease, history of cancer (except basal cell carcinoma of the skin and cervical carcinoma in situ), history of insulin requiring diabetes mellitus, any ongoing chronic illness requiring ongoing specialist supervision (e.g., gastrointestinal), and chronic or active neurological disease)
  • History of > 2 hospitalisations for invasive bacterial infections (pneumonia, meningitis)
  • Suspected or known current drug and/or alcohol abuse
  • Seropositive for hepatitis B surface antigen (HBsAg) and/ or hepatitis C (antibodies to HCV)
  • Evidence of serious psychiatric condition
  • Any other on-going chronic illness requiring hospital specialist supervision
  • Any confirmed or suspected immunosuppressive or immunodeficient condition, other than HIV infection, such as asplenia
  • Evidence of hepatomegaly
  • Administration of immunoglobulins and/or any blood products within the three months preceding the planned administration of the vaccine candidate
  • Pregnant/lactating female and any female who is willing or intends to become pregnant during the study
  • Any history of anaphylaxis in reaction to vaccination
  • PI assessment of lack of willingness to participate and comply with all requirements of the protocol, or identification of any factor felt to significantly increase the participant's risk of suffering an adverse outcome

Trial locations and contacts

1 site in 1 country.

Senegal1 site
  • Centre Hospitalier Le Dantec

    Dakar, BP 7325

Other trials in Senegal

About this study

Official title: A Phase I Study Evaluating the Safety and Immunogenicity of a New TB Vaccine, MVA85A, in Healthy Volunteers Who Are Infected With HIV

This is an open Phase I study of a candidate TB vaccine, MVA85A, in healthy subjects who are infected with HIV. It is designed to study the safety and immunogenicity of the vaccine.

Read the detailed description

This study is designed to evaluate the safety of MVA85A in healthy volunteers in Senegal who are infected with HIV. In phase I studies, a single vaccination with MVA85A, when administered at a dose of 5 x 107pfu intradermally, has been shown to be safe in both mycobacterially naïve individuals, those previously vaccinated with BCG and latently infected individuals. We will use 1 x 10^8 pfu MVA85A intradermally in this study. A trial in BCG vaccinated subjects showed that the higher dose (1 x 10^8 pfu MVA85A) induced a significantly higher immune response but did not have a higher AE profile. In addition, because of a variable immune response, the trial in HIV positive subjects in the UK is split into two groups, the first getting 5 x 10^7 pfu and the second getting 1 x 10^8 pfu MVA85A. It has, therefore, been decided to use the higher dose in order to maximise the immune response whilst maintaining a good safety profile.

Conditions
Tuberculosis
Being tested
MVA85A
Medical subject headings
Tuberculosis

What participants receive

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

  • MVA85ABiological

    Modified vaccinia virus Ankara expressing antigen 85A from Mycobacterium tuberculosis. Both arms will receive two vaccinations six months apart.

Study groups in NCT00731471
Study groupRoleWhat they receive
1Experimental12 Healthy adults infected with HIV
Receives: Biological: MVA85A
2Experimental12 HIV+ adults on antiretroviral therapy
Receives: Biological: MVA85A

What is being measured

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

  1. Safety of MVA85A

    Measured: Six months

Secondary outcomes (1)
  1. Immunogenicity of MVA85A

    Measured: Six months

Timeline

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

  1. First posted11 Aug 2008 (estimated)
  2. Study startAug 2008
  3. Primary completionJan 2011
  4. Study completionJan 2011

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 1
Primary purpose
Prevention
Allocation
Non-randomised
Intervention model
Single group
Masking
None (open label)
Enrolment
24 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00731471
Sponsor's protocol ID
TB019
Status last verified
Mar 2011
First submitted
6 Aug 2008
Last updated
28 Mar 2011
Results posted
No
Data monitoring committee
Yes

Publications

  • Dieye TN, Ndiaye BP, Dieng AB, Fall M, Brittain N, Vermaak S, Camara M, Diop-Ndiaye H, Ngom-Gueye NF, Diaw PA, Toure-Kane C, Sow PS, Mboup S, McShane H. Two doses of candidate TB vaccine MVA85A in antiretroviral therapy (ART) naive subjects gives comparable immunogenicity to one dose in ART+ subjects. PLoS One. 2013 Jun 28;8(6):e67177. doi: 10.1371/journal.pone.0067177. Print 2013.

    PubMed 23840618

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing MVA85A in people with Tuberculosis, run by University of Oxford at 1 site in Senegal.

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 9 inclusion and 23 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 28 Mar 2011. 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 Senegal. 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. 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 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

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?

Safety of MVA85A (time frame: Six months). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00731471, which also lists 1 linked publication.

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 28 Mar 2011.

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