View clinical trials related to HIV Prevention.
Filter by:This is an open-label, steady-state study of Tenofovir (TFV) and Emtricitabine (FTC) pharmacokinetics (PK) in transgender women taking feminizing hormones. Half of the participants will be transgender women on feminizing hormones, the other half will be male volunteers not taking any hormone therapy.
Background: Human immunodeficiency virus (HIV) is a global health threat. The body uses antibodies to fight infection. VRC07-523LS is an antibody directed against HIV. It may be used to prevent mother-to-child transmission of HIV. It may also prevent sexual transmission of HIV and treat HIV-1 infected people. Objective: To test the safety, tolerability, dose, and pharmacokinetics of VRC07-523LS in healthy adults. Eligibility: Healthy people ages 18-50 Design: Participants will be screened with: Medical history Physical exam Blood and urine tests Participants will be assigned to 1 of 7 groups: Groups 1-5 will get the drug at 1 visit and then be observed for 24 weeks. Groups 6 and 7 will get the drug at 1 visit every 12 weeks, for a total of 3 doses over 48 weeks. Participants will get the drug in 1 of 2 ways: Infusion into a vein over at least 30 minutes. Participants will have blood tests 1, 3, and 6 hours after the infusion. They will have 1-3 visits during that week. Those in Group 7 will have 4-5 visits in the week after their second and third doses. Injection into the fatty tissue under the skin. Participants will have blood tests before the injection. They will have 1-3 visits during that week. Those in Group 6 will have 4-5 visits after the second and third doses. Visits include: Physical exam Blood and urine tests Optional oral swabs to collect saliva Participants will keep a diary of their temperature and symptoms for 3 days after each dose.
This study has three specific aims: 1. To conduct a 2-arm randomized controlled trial comparing IMARA to a family-based health program (FUELTM). The investigators will: a. Randomly assign 300 14-18 year-old AA or black girls and their primary female caregivers to IMARA (N=150) or FUELTM (N=150). Women and girls will be recruited four ways: 1) from mental health clinics using clinic liaisons, 2) flyers will be posted in clinic recruitment sites and other agencies instructing interested families to call our recruiter, 3) IMARA participants will hand flyers to interested women and girls they know, and 4) COIP field station staff will pass out flyers and recruit interested women and girls at the field stations and in the community. Investigators will examine the effects of IMARA on women and girls' sexual behavior at 6- and 12-months. 2. To evaluate the impact of IMARA on theoretical mediators posited by the Theory of Gender and Power and the Social-Personal framework associated with AA women and girls' risky sex. Investigators will: 1. Assess changes in women and girls' Individual Attributes (HIV/AIDS knowledge, attitudes, and beliefs, mental health/emotion regulation, ethnic identity); Peer and Partner Processes (partner characteristics, relationship power dynamics, peer influences, partner communication); and Family Context (mother-daughter relationship and communication, parental monitoring) at baseline and follow-ups. 2. Evaluate mediation and moderation of theoretical mechanisms on women and girls' sexual behavior. 3. To assess the impact of IMARA compared to FUELTM on sexually transmitted infections (STIs). Investigators will: 1. Test women and girls' urine for three common STIs at baseline and 12-month follow up. 2. Explore linkages between biological outcomes and targeted mediators and moderators of change.
A follow-on, open label trial to assess continued safety of and adherence to the Dapivirine(25mg) vaginal ring-004 in healthy, HIV-negative women
PK and Safety Study of Vaginal Ring Containing Dapivirine and Levonorgestrel
A Study to assess the drug-drug interaction potential, between Dapivirine Vaginal Ring-004, containing 25 MG of Dapivirine.
DREAM-01 is an early phase 1, open label, dose-escalation and variable osmolarity study to compare the safety, pharmacokinetics (PK), pharmacodynamics (PD), and acceptability of 3 formulations of a tenofovir (TFV) enema. The goal of the study is to identify the dose and osmolarity of a TFV enema for human immunodeficiency virus (HIV) pre-exposure prophylaxis (PrEP) which achieves the desired colonic mucosal mononuclear cells (MMC) tenofovir diphosphate (TFV-DP) target concentrations that have previously been shown to confer protection from HIV acquisition in men who have sex with men (MSM).
MTN-032 is an exploratory sub-study of the ASPIRE and HOPE trials that will utilize qualitative In-Depth Interviews (IDIs) and Focus-Group Discussions (FGDs) to explore socio-contextual and trial specific issues which affected participants' adherence to the dapivirine vaginal ring (VR), as well as male partner attitudes towards and experiences with the dapivirine VR and their perspective of their female partner's attitudes and experiences.
As part of Yale's Play2Prevent (www.Play2Prevent.org) program to develop videogame-based interventions targeting risk reduction and prevention in youth and young adults, this study is designed to develop a paper prototype and intervention design manual of an online social-network game, One Night Stan, with the goal of risk reduction and HIV/STI prevention in young black women. The ultimate plan is to incorporate focus group participants input and feedback into the development of a conceptual model, intervention manual, and videogame intervention prototype. This prototype will then be tested using 20 participants and will utilize a pre-post design to evaluate the effectiveness of the program.
The purpose of this study is to test a program that uses drug level monitoring, text messaging ("iTAB") and personalized counseling with HIV prevention services, including PrEP (medicine that can help prevent HIV infection when taken daily).