Active clinical trials for "Acquired Immunodeficiency Syndrome"

To prevent individuals who have had a massive accidental exposure to HIV from becoming infected with HIV and possibly developing AIDS, by treating them with zidovudine (AZT). Although the number of persons who have been (or will be) exposed to a high concentration of HIV is quite small, these persons have a high risk of becoming infected and treatments are needed to prevent infection after such an exposure. In animal studies, AZT has prevented the development of infections after exposure of the animals to a retrovirus (the HIV is a retrovirus). In patients with AIDS, AZT has been effective in delaying the progression of the disease. For these reasons a trial of AZT is indicated.

To determine the safety and immunogenicity of 200 mcg MN rgp160 vaccine (Immuno-AG) versus placebo, administered on two immunization schedules to healthy volunteers. Per 06/15/94 amendment, to determine the safety and immunogenicity of 800 versus 200 mcg given as a fourth immunization at 9 or 11 months after the third injection (i.e., at month 17). A gp160 vaccine developed from the IIIB strain of HIV-1 has been found to be safe and immunogenic in healthy adults. Since the MN strain of HIV-1 is representative of a larger proportion of HIV-1 isolates in the United States than is the IIIB strain, evaluation of a gp160 vaccine derived from the MN strain is important.

AMENDED 8/94: To expand the safety and immunogenicity profile of MN rgp160 vaccine (Immuno-AG) by administering a higher dose (800 mcg) at 0, 1, 6, and 12 months and 0, 2, 8 and 14 months (these two schedules were compared in VEU 013A using a dose of 200 mcg). To obtain plasma following the fourth immunization. To evaluate skin test reactivity. ORIGINAL (replaced): To determine in healthy volunteers the safety and immunogenicity of two immunizations of MN rgp160 vaccine (Immuno-AG) in combination with a live recombinant vaccinia virus LAV HIV-1 gp160 vaccine (HIVAC-1e) versus DryVax (the standard smallpox vaccine that was used for many years) control in combination with placebo. ORIGINAL (replaced): A gp160 vaccine derived from the MN strain, the most prevalent strain of HIV-1 in the United States, has been developed. A previous study showed that a combination vaccine strategy, consisting of priming with HIVAC-1e followed by boosting with a gp160 subunit vaccine, resulted in humoral and cellular immune responses of greater and longer duration than either vaccine alone. Thus, a live vector/subunit boost approach using the MN rgp160 vaccine merits investigation.

The purpose of this study is determine whether different antiretroviral therapy (ART) changes the effects on body fat and predict the weight change in Black and Hispanic females.

African American men have by far the highest rates of HIV in the US, but there are few randomized controlled trials (RCTs) of interventions to dissuade heterosexually active African American men from engaging sexual risk behavior. This research seeks to address this gap in the behavioral intervention literature. That self-initiated behavior change, as well as intervention-induced behavior change, is often short-lived, eroding over time, is widely known; accordingly, this research also seeks to test a strategy to sustain intervention efficacy. In a RCT, African American men 18 to 45 years reporting recent unprotected intercourse with a woman will be randomized to the Steering Together in a New Direction (STAND) HIV Risk Reduction Intervention or a No-Intervention Control Condition. To test a strategy to sustain intervention effects, the men also will be randomized to receive or not receive individually tailored text messages. The theoretical basis of the interventions is social cognitive theory and the reasoned action approach, which is an extension of the theory of planned behavior and the theory of reasoned action. Men will complete self-report measures via audio computer-assisted self-interviewing at baseline and immediately post and 6 and 12 months post-intervention. The trial will test whether the STAND HIV Risk Reduction Intervention as compared with the No-Intervention Control Condition, increases consistent condom use, the primary outcome. Secondary outcomes include unprotected intercourse, multiple sexual partners, insertive anal intercourse, and proportion condom-protected intercourse. The trial will also test whether STAND's efficacy is greater among men in the Text Messaging Intervention compared with men not receiving text messages. This will provide information on the utility of a low-cost strategy to extend an intervention's efficacy. Finally, the study will test for mediation of intervention effects: the hypothesis that STAND affects outcome expectancies and self-efficacy, which, in turn, affect consistent condom use.

Prevention strategies that aim to test and treat people for HIV infection are undermined by HIV treatment non-adherence and sexually transmitted co-infections (STI). The proposed study will test a theory-based behavioral intervention to reduce HIV infectiousness by simultaneously improving HIV treatment adherence and reducing sexually transmitted co-infections in people living with HIV-AIDS who use alcohol and other drugs. The intervention is delivered in a single office-based counseling session followed by 4 cell phone delivered counseling sessions in a model that will be ready for immediate dissemination to case management and clinical services for people living with HIV/AIDS in resource constrained settings.

This study is an open-label extension of RFSP-AMDX-2010 study for those subjects who received treatment with amdoxovir (300 mg or 500 mg twice daily) for 12 weeks and benefited from it. This study will examine the safety and efficacy of the investigational HIV drug, amdoxovir (300 mg and 500 mg bid doses; N = up to 30) in combination with zidovudine and lopinavir/ritonavir for 36 weeks. Subjects will continue to receive either amdoxovir 300 mg twice daily or amdoxovir 500 mg twice daily, each in combination with zidovudine 300 mg twice daily and lopinavir/ritonavir (400 mg/100 mg twice daily) for additional 36 weeks.

This is a randomized controlled trial to contrast an intervention that relies on well-developed cognitive control systems (Motivational Interviewing; MI) to an intervention that relies on a more basic response to scheduled reward (Behavioral Skills Training; BST).

PRO 140 2103 is a multicenter, randomized parallel group study, conducted in male and female adult subjects infected with CCR5-tropic HIV-1.

Recent breakthroughs in antiretroviral (ARV)-based prevention provide new opportunities to rethink HIV prevention and treatment strategies, especially for key populations such as Female Sex Workers (FSWs). Antiretroviral (ARV)-based prevention of HIV transmission has the potential to have a profound population-level impact on the course of the HIV/AIDS pandemic. Several recently completed randomized controlled trials of HIV Pre-exposure Prophylaxis (PrEP) have shown efficacy at reducing HIV acquisition in high-risk populations. How to translate these trial results into population-level effects is the next critical step. PrEP "demonstration" projects, in collaboration with local stakeholders and at sites of routine care for high-risk populations provide an opportunity to move promising research results into actual public health benefits. With these key features in mind, the investigators propose an HIV PrEP demonstration project in FSW in Dakar, Senegal, West Africa. The objective of the proposed demonstration project with Tenofovir DF/Emtricitabine (TDF/FTC) among Female Sex Workers (FSW) in Dakar Senegal is to build a sustainable HIV PrEP program for FSW in Dakar, Senegal while demonstrating the feasibility of providing daily oral PrEP with Truvada (TDF/FTC) for 12 months to the enrolled FSW at Ministry of Heath run clinics (Pikine, Mbao, Rufisque and Diamniadio Health Centers). Critical milestones for this demonstration project with be feasibility, uptake, acceptability, use of TDF/FTC PrEP and programmatic retention of FSWs in Dakar MoH clinics. The investigators have assembled an expert team from RARS,The University of Washington, and Westat that have had greater than 2 decades of collaboration on HIV related projects in FSWs in Senegal. The investigators expect the results of this project will show that Senegal provides a unique opportunity to assess acceptability, feasibility, uptake and effectiveness of oral HIV PrEP at reducing HIV transmission in a high-risk FSW population.