Active clinical trials for "HIV Infections"

Approximately 18 women will be enrolled in this single-center, double-blind, randomized Phase I study to assess vaginal tissue and fluid levels, plasma levels and pharmacokinetics of dapivirine (TMC120) gel, which will be applied for 10 consecutive days in 18 healthy HIV-negative women ages 18 to 50. Volunteers will be randomized in a 1:1:1 ratio to receive 2.5mL dapivirine vaginal microbicide gel at one of three concentrations.

Approximately 112 HIV-negative women, aged 18 to 50, will be enrolled in this multicenter study at four sites. Volunteers will be randomized to dapivirine (TMC120) vaginal gel or matching placebo gel. The volunteers will receive investigational product for a total of 42 days. Volunteers will be monitored on days 7, 28 and 42 for safety, tolerability and compliance.

The purpose of the study was to test the equivalence of a short zidovudine (ZDV) regimen as compared to a longer, ACTG-076-like, ZDV regimen in reducing the risk of mother-to-child transmission of HIV: and to assess and compare the safety and tolerance of the long and shortened ZDV regimens.

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 (Joint United Nations Programme on HIV/AIDS [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 represents a very logical approach to this problem because of 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® vaccine expressing cytotoxic T lymphocyte (CTL) and helper T lymphocyte (HTL) epitopes of HIV-1 (MVA-mBN32) in 36 healthy volunteers 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.

The study compares the adherence of 240 HIV-negative subjects randomly assigned to 2 different antiretroviral therapies for 28 days after accidental exposure to HIV.

This is a randomized placebo controlled trial. Malaria chemoprophylaxis with mefloquine in asymptomatic HIV-infected adults living in a malaria endemic region of Luanshya, Zambia will be compared to a placebo control group and followed up for 18 months.

People infected with HIV are now living longer lives because of the use of highly active antiretroviral therapy (HAART). However, HAART medications have been shown to increase the risk of cardiovascular disease and metabolic dysfunction in adults. More research is needed on the effect of HAART in children. The purpose of this study is to assess cardiovascular risk factors in children infected with HIV who receive HAART medications and to determine the effectiveness of an exercise program on cardiovascular outcomes in these children.

The purpose of this study is to determine whether dapivirine gel 4789 is safe for daily use by healthy women in South Africa.

Our proposal "Centralized Off-Site Adherence Enhancement Program" or "CARE" will develop and test an effective behavioral adherence intervention program for HIV patients with alcohol and/or substance abuse problems. This project will develop and pilot test a novel program to help patients with alcohol and/or substance abuse problems take their medications as prescribed. The intervention will be delivered by phone, and utilize electronic monitoring of medication-taking, so patients can be treated by therapists from any geographic distance. To safely monitor data collected for this study, we have laid out a detailed Data Safety Monitoring Plan, which will cover all the issues required by NIDA.

This is a research study to evaluate the safety of a vaccine to protect people from HIV infection. Human Immunodeficiency Virus (HIV) is the cause of AIDS (Acquired Immune Deficiency Syndrome). AIDS is one of the most serious viral infections of our time. It is believed that all persons who contract HIV will eventually develop AIDS. Because of this, we are trying to develop new ways to prevent infection with HIV. The vaccine that will be tested in this study has been prepared from a small part of the HIV. The part of the HIV used in this vaccine is the "envelope" or coating part of the virus. In this study, researchers will evaluate how well the vaccine is tolerated, how much vaccine should be given, and determine if any side effects occur in response to the vaccination.