Objectives: Risk factors for HIV acquisition were examined in a recent cohort of men who
have sex with men (MSM). Design: A longitudinal analysis of 4295 HIV-negative MSM …

Background Antiretroviral medications that are used as prophylaxis can prevent acquisition
of human immunodeficiency virus type 1 (HIV-1) infection. However, in clinical trials among …

Objectives. We describe the prevalence of risk behaviors at baseline among men who have
sex with men (MSM) who were enrolled in a randomized behavioral intervention trial …

Prior reports associating substance use with sexual risk behavior have generally used
summary measures and have not adjusted for participants' background levels of substance …

Most prior studies examining drug use among men who have sex with men (MSM) have
been cross-sectional or retrospective and have not determined whether periods of increased …

The EXPLORE study evaluated a behavioral intervention to prevent HIV infection among
MSM. We examined depressive symptoms, utilization of mental health care, substance use …

Objective: Human papillomavirus (HPV) is a common sexually transmitted agent that causes
anogenital cancer and precancer lesions that have an inflammatory infiltrate, may be friable …

Background: Variable adherence limits effectiveness of daily oral and intravaginal tenofovir-
containing pre-exposure prophylaxis. Monthly vaginal antiretroviral rings are one approach …

Objectives: The study was designed to assess the safety, adherence, acceptability, and
effect on vaginal microflora of 3% SPL7013 Gel (VivaGel), a novel dendrimer topical …

Objectives. We describe the intervention tested in EXPLORE, an HIV prevention trial aimed
at men who have sex with men (MSM), and test the empirical basis of the individually …