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NCT ID: NCT00303576 Completed - HIV Infections Clinical Trials

A Safety and Tolerability Study of Dapivirine (TMC120) Vaginal Microbicide Gel

Start date: October 2005
Phase: Phase 1/Phase 2
Study type: Interventional

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.

NCT ID: NCT00194519 Completed - HIV Infection Clinical Trials

Herpes Simplex Virus Type 2 (HSV-2) Suppression to Prevent HIV Transmission

Start date: November 2004
Phase: Phase 3
Study type: Interventional

The University of Washington has received funding to conduct a proof-of-concept trial to assess the impact of suppression of genital herpes on HIV infectiousness. This study (the Partners in Prevention Study) will enroll HIV discordant heterosexual couples in which the HIV-infected partner is co-infected with herpes simplex virus type 2 (HSV-2) to test the efficacy of twice daily (bid) acyclovir (400 mg) given to the HIV-infected partner to prevent transmission to his/her HIV negative partner(s). This randomized, double-blind, placebo-controlled proof-of-concept trial will provide evidence for the efficacy of HSV-2 suppression with daily acyclovir on HIV transmission among HIV-discordant couples among whom the HIV-positive partner is also HSV-2 seropositive with CD4 >250. The researchers hypothesis is that, by decreasing the frequency and amount of genital HIV shedding, standard doses of daily acyclovir 400 mg bid will reduce the rate of HIV transmission by 50% in HIV-discordant couples among whom the HIV-infected partner is HSV-2 positive. Under the study protocol version 4.1.1, 3000 HIV-discordant heterosexual couples in which the HIV-positive partner is HSV-2 positive and has a CD4 count >250 will be recruited; participants will be followed for up to 2 years. A 4% per year HIV incidence in the placebo arm is assumed. The first study site began enrolling participants on 17 November 2005. As of September 2006, 14 sites in Eastern and Southern Africa had participated in recruiting the 2300 HIV-discordant couples enrolled to date.

NCT ID: NCT00124007 Completed - HIV Infections Clinical Trials

Safety of and Immune Response to an Adenoviral HIV Vaccine (VRC-HIVADV014-00-VP) With or Without a Plasmid HIV Vaccine (VRC-HIVDNA016-00-VP) in HIV Uninfected Adults

Start date: November 2005
Phase: Phase 1
Study type: Interventional

The purpose of this study is to determine the safety of and immune response to an investigational HIV vaccine, VRC-HIVADV014-00-VP, with or without a second investigational HIV vaccine, VRC-HIVDNA016-00-VP, in HIV uninfected adults.