A Study to Evaluate the Safety of the HIV-1 Vaccine MVA-B in Chronic HIV-1 Infected Patients Successfully Treated With HAART (2009-016578-34)

March 31, 2015 updated by: Felipe Garcia, Hospital Clinic of Barcelona

A Double-blind Phase I Study to Evaluate the Safety of the HIV-1 Vaccine MVA-B in Chronic HIV-1 Infected Patients Successfully Treated With HAART

30 treated chronic HIV-1 infected patients with CD4+ cell counts above 450 cells/ mm3 will be randomized 1:2 to receive placebo (n=10) or vaccine (n=20) at week 0, 4 and 16 and will be observed at the Investigation Unit of the study site for one hour following vaccination. At week 24 they will stop their HAART until the end of the study.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Actual)

30

Phase

  • Phase 1

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Spain
      • Barcelona, Spain, 08036
        • Hospital Clinic i Provincial de Barcelona
      • Madrid, Spain, 28007
        • Hospital Universitario Gregorio Maranon
    • Barcelona
      • Badalona, Barcelona, Spain, 08915
        • Hospital Universitari Germans Trias i Pujol

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Patient is ≥ 18 years of age;
  • Voluntarily signed informed consent;
  • Patient is male, or female with negative pregnancy test prior to enrolment;
  • Patient has a proven HIV-1 infection (with positive antibodies against HIV-1 and a detectable plasma HIV-1 RNA);
  • Patient must be on stable treatment with HAART for at least 6 months (HAART is defined as an antiretroviral regimen consisting of at least three registered antiretroviral agents*);
  • Mean of all measured CD4+ cell counts during the 6 months prior to the start of HAART must be above or equal to 200 cells/ mm3
  • Current CD4+ cell count must be at least 450 cells/ mm3;
  • HIV-RNA must be below 50 copies/ mL for the last 6 months prior to inclusion, during at least two measurements (occasional so called 'blips' up to 50 copies/mL are permitted);
  • Patient is one of the following: not sexually active, or a heterosexually active female, agreeing to use condoms with her partner from 14 days prior to the first vaccination until 4 months after the last, even though using another method of contraception, and willing to undergo pregnancy tests during screening and prior to each vaccination, or a male, agreeing to use condoms with his partner from the day of the first vaccination until 4 months after the last vaccination.

Exclusion Criteria:

  • Treatment with a non-HAART regimen of antiretroviral agents prior to the start of HAART;
  • History of a CDC class C event (see Appendix);
  • Interruption of HAART during the course of the study which is expected at the time of inclusion;
  • History of exposure <20 years ago to any poxvirus based vaccine;
  • Patient is female and has a positive pregnancy test or the wish of pregnancy:
  • Active opportunistic infection, or any active infection or malignancy within 30 days prior to screening visit;
  • Therapy with immunomodulatory agents, including cytokines (e.g. IL2) and gamma globulin, or cytostatic chemotherapy within 90 days prior to screening visit;
  • History of allergy to any vaccine component;
  • Use of anti-coagulant medication;
  • Use of any investigational drug during the 90 days prior to study entry;
  • Previous failure to antiretroviral and/or mutations conferring genotypic resistance to antiretroviral therapy
  • Any other condition which, in the opinion

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Prevention
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Quadruple

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Placebo Comparator: Placebo
Drug: Placebo
3 immunisations at week 0, 4 and 16
Experimental: Vaccine group
Modified Pox virus, strain MVA clade -B (expressing HIV-1 Bx08gp120 and IIIB gagpolnef) (MVA HIV-B)
Drug: Vaccination

  • Modified Pox virus, strain MVA clade -B (expressing HIV-1 Bx08gp120 and IIIB gagpolnef)

    -~ 1 x 10e8 pfu/ml

  • 3 immunisations at week 0, 4 and 16

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
primary safety parameters
Time Frame: week 8
Grade 3 or above local adverse event (pain, cutaneous reactions including induration) Grade 3 or above systemic adverse event (temperature, chills, headache, nausea, vomiting, malaise, and myalgia) Grade 3 or above other clinical or laboratory adverse event confirmed at examination or on repeat testing respectively Any event attributable to vaccine leading to discontinuation of the immunisation regimen
week 8
Primary immunogenicity parameters
Time Frame: After each inmunisation and at weeks 6-8 and 18-20
Cellular responses - CD8/CD4+ T cell responses (ELISPOT)
After each inmunisation and at weeks 6-8 and 18-20

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
All grade 1 and 2 adverse events
Time Frame: week 8
week 8
Viral load rebound
Time Frame: week 48
After HAART interruption compared between both arms and with baseline viral load before any medication in each arm
week 48
Antibody responses
Time Frame: 48 weeks
  • binding titration to the construct MVAB
  • binding titration to and neutralisation of vaccinia
48 weeks
Cellular responses
Time Frame: Week 6 and 18
Intracellular cytokine analysis
Week 6 and 18

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Hospital Clinic of Barcelona

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

September 1, 2011

Primary Completion (Actual)

May 1, 2013

Study Completion (Actual)

May 1, 2013

Study Registration Dates

First Submitted

November 9, 2011

First Submitted That Met QC Criteria

April 3, 2012

First Posted (Estimate)

April 5, 2012

Study Record Updates

Last Update Posted (Estimate)

April 1, 2015

Last Update Submitted That Met QC Criteria

March 31, 2015

Last Verified

March 1, 2015

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • RisVac 03

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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