Aids, Cdc Group I Clinical Trial
Official title:
Phase I Study: HIV-1 Peptide Immunisation of Individuals in West Africa to Prevent Disease
Treatment: Immunization with peptide-mix and adjuvant. The vaccine should induce cellular
immunity against HIV-1.
Target group: Untreated healthy individuals with chronic HIV-1 infection.
Purpose: The primary purpose is to evaluate tolerability and safety of the vaccine.
The secondary purpose is to evaluate the clinical effect of the vaccination treatment as
measured by induction of immunity, lowering of viral load, induction of escape mutations in
the virus and improvement in the patient CD4 lymphocyte blood counts.
The third purpose is to evaluate the feasibility of conducting a therapeutic HIV
immunization study in a poorly-resourced African setting.
Design: The experiment is designed as a blinded, placebo-controlled phase 1 clinical trial
in HIV-1 infected individuals in West Africa.
Numbers of individuals: Phase I: 20 fully evaluable HIV-1-infected patients should enter the
study (15 vaccine treated and 5 placebo(saline) treated controls).
The HIV infection does not leave lifelong immunity, but leads to break down of the immune system, opportunistic infections and death. The immunity obtained by the infection itself can only partially contain the HIV infection. The purpose with a targeted therapeutic vaccination is therefore in addition to the existing immunity to induce a broader, more powerful and more rationally or better directed immunity than the one induced by the "natural" HIV-1 infection. This would potentially lower the viral load in the blood making it more difficult to spread the virus to others and prolong the time to AIDS disease and medical treatment. There is a need for new rational vaccination possibilities, able to prevent (HIV) disease, postpone the need for antiretroviral medical treatment, prolong the life, and limit spread of HIV-1 in the population. The present protocol seak to introduce such a new immune treatment principle for HIV-1 infected individuals. In this study, individuals with chronic HIV-1 infection will be vaccinated with selected synthetic HIV immune-peptides representing new discovered conserved target´s on the virus. The vaccine should induce new immunity against several epitope targets on their HIV, whereby the HIV infection may be controlled for a longer time by the immune system. The purpose of the study is primarily to evaluate the safety and tolerability of the vaccine and secondary to evaluate the immunological and antiviral response in the vaccinated individuals. ;
Allocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Single Blind (Subject), Primary Purpose: Treatment