HIV Infections Clinical Trial
Official title:
Safety and Immunogenicity of the HIV-1 DNA Vaccine VRC-HIVDNA009-00-VP (GAG-POL-NEF-MULTICLADE ENV) in HIV-1 Infected Subjects Treated During Acute HIV Infection
The purpose of this study is to evaluate whether the HIV vaccine VRC-HIVDNA009-00-VP will be safe in individuals who started antiretroviral therapy during acute HIV-1 infection. The study will also test whether the vaccine can increase the immune system function in these participants.
Highly active antiretroviral therapy (HAART) has greatly improved mortality and morbidity rates associated with HIV and AIDS. However, many HIV-1 infected individuals are unable to access HAART. It is therefore important to develop a safe and effective therapeutic vaccine to improve immune control of viral replication and reduce the need for antiretroviral medication. This study will evaluate the safety and immunogenicity of the HIV-1 DNA vaccine VRC-HIVDNA009-00-VP in treating HIV-1 infected individuals who initiated antiretroviral therapy during acute infection. This study will involve a supervised treatment interruption (STI) in order to determine whether therapeutic vaccination results in improved immune control of viral replication. Participants in this study will be randomly assigned to receive either the therapeutic vaccine or placebo in addition to their regular HAART regimens. During the first part of the study, participants will receive 4 vaccinations at Weeks 0, 4, 8 and 24. All individuals completing the therapeutic vaccination phase (defined as completing at least 3 immunizations, including the Week 24 immunization) will be given the opportunity to participate in the second part of the study and undergo a supervised discontinuation of HAART. At Week 30, these participants will discontinue all antiretroviral treatment and will be closely monitored. Participants will restart HAART if they experience a significant decline in their CD4 count, an increase in their viral loads, or if their physicians recommend they resume HAART. At Week 52, all other participants can restart HAART at the discretion of their primary physician. 21 study visits will occur over a period of 52 weeks. After Week 52, monthly study visits will occur through Week 72. Study visits will last approximately two hours and will include physical exams and blood and urine collection. ;
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