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Single-Blind, Controlled Safety and Immunogenicity Study of Recombinant MVA Virus to Treat HIV Infection

HIV Infections Clinical Trial

Official title:
Single-Blind, Randomized, Controlled, Phase I/II Vaccination Study on Safety and Immunogenicity of a Recombinant MVA-HIV Polytope Vaccine (MVA-mBN32) in HIV-1 Infected Patients With CD4 Counts > 250/µl

Clinical Trial Summary

At the end of 2004 there were more than 40 million people infected Worldwide with HIV, with an estimated 16,000 new infections every day (UNAIDS, 2004). The HIV epidemic threatens whole societies particularly in Africa and Asia and rates of infections in the Western Countries have also increased over the last few years. However, despite more than 15 years of research, an effective vaccine against HIV and acquired immunodeficiency syndrome (AIDS) has still not been developed.

There is considerable evidence that cellular immune responses can effectively control HIV-1 replication during acute and chronic infections thereby possibly protecting individuals from infection and preventing the spread of HIV. To be truly effective in the general population, a vaccine must induce responses specific to immunologically conserved regions. The epitope-based vaccine MVA-mBN32 represent a very logical approach to this problem because its potential to elicit a polyfunctional immune response and to focus these responses to conserved epitopes.

In this study the safety, tolerability and immunogenicity of a recombinant MVA-BN® expressing CTL and HTL epitopes of HIV-1 (MVA-mBN32) vs. the vector control MVA-BN® in 30 HIV-infected subjects will be examined. This will include a full analysis of CD4+ T helper cells and CD8+ CTL responses to these epitopes, to establish the potential of such a homologous prime-boost vaccine approach to induce a broad cell-mediated response to different HIV antigens.

Clinical Trial Description

n/a

Study Design

Allocation: Randomized, Endpoint Classification: Safety Study, Intervention Model: Parallel Assignment, Masking: Single Blind (Subject), Primary Purpose: Treatment

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT00390078
Study type Interventional
Source Bavarian Nordic
Contact
Status Completed
Phase Phase 1/Phase 2
Start date January 2007
Completion date January 2009
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