Search

In a community-based clinic serving men who have sex with men in San Francisco, California, this study characterized key steps of the pre-exposure prophylaxis (PrEP) cascade and identified correlates of retention in care. In total, 344 patients were evaluated for PrEP. Three-fourths (78%) of those who sought PrEP services initiated PrEP. The overall cumulative incidence of discontinuing PrEP at 13 months was 38%. Men with a sexually transmitted infection (STI) were 44% less likely to be retained (adjusted hazard ratio [aHR] 0.56, 95% confidence interval [0.33-0.95]). Comprehensive retention efforts for men with STIs are crucial to optimize the benefits of PrEP.

The CDC recommends PrEP for MSM at substantial risk of HIV acquisition, leaving clinicians unsure whether to prescribe PrEP to MSM who do not disclose HIV risk factors. A longitudinal cohort of MSM requesting PrEP despite reporting during a clinical visit either 100% condom use or participation in oral sex only and no other risk factors was followed over 13 months at a community clinic in San Francisco to assess the accuracy of their HIV risk perception. Participants completed a sexual and substance use behavior questionnaire at baseline, outside of the clinical visit and were followed by quarterly HIV/STI testing and condom use change questionnaires. Condomless sex increased from 0% at baseline to 12% at month 1, peaked at 34% at month 7, and then decreased again to 8% at month 13. Rates of pharyngeal GC/CT varied from 7% at baseline to 12% at month 13, while rectal GC/CT decreased from 6% at baseline to 0% at month 13. The rate of syphilis was 1% both at baseline and at month 13, however, 11% and 15% of clients tested positive for syphilis at months 1 and 7 respectively.

Introduction: Despite widespread success in reducing vertical HIV transmission, most antenatal care (ANC) programmes in eastern and southern Africa have not emphasized primary prevention of maternal HIV acquisition during pregnancy and lactation/breastfeeding. We hypothesized that combination HIV prevention interventions initiated alongside ANC could substantially reduce maternal HIV incidence. Methods: We constructed a multi‐state model describing male‐to‐female HIV transmission in steady heterosexual partnerships during pregnancy and lactation/breastfeeding, with initial conditions based on population distribution estimates for Malawi and Zambia in 2020. We modelled individual and joint increases in three HIV prevention strategies at or soon after ANC initiation: (1) HIV testing of male partners, resulting in HIV diagnosis and less condomless sex among those with previously undiagnosed HIV; (2) initiation (or re‐initiation) of suppressive antiretroviral therapy (ART) for male partners with diagnosed but unsuppressed HIV; and (3) adherent pre‐exposure prophylaxis (PrEP) for HIV‐negative female ANC patients with HIV‐diagnosed or unknown‐status male partners. We estimated the percentage of within‐couple, male‐to‐female HIV transmissions that could be averted during pregnancy and lactation/breastfeeding with these strategies, relative to base‐case conditions in which 45% of undiagnosed male partners become newly HIV diagnosed via testing, 75% of male partners with diagnosed but unsuppressed HIV initiate/re‐initiate ART and 0% of female ANC patients start PrEP. Results: Increasing uptake of any single strategy by 20 percentage points above base‐case levels averted 10%−11% of maternal HIV acquisitions during pregnancy and lactation/breastfeeding in the model. Joint uptake increases of 20 percentage points in two interventions averted an estimated 19%−23% of transmissions, and with a 20‐percentage‐point increase in uptake of all three interventions, 29% were averted. Strategies achieving 95% male testing, 90% male ART initiation/re‐initiation and 40% female PrEP use reduced incident infections by 45%. Conclusions: Combination HIV prevention strategies provided alongside ANC and sustained through the post‐partum period could substantially reduce maternal HIV incidence during pregnancy and lactation/breastfeeding in eastern and southern Africa. [ABSTRACT FROM AUTHOR]

Aims and Objectives: To review the literature regarding PrEP and sexual behaviour change in MSM. Background: Pre‐exposure prophylaxis for HIV has been available since 2012. Even so, pre‐exposure prophylaxis has not been widely accepted among healthcare providers and men who have sex with men some of whom are convinced that pre‐exposure prophylaxis decreases condom use and increases sexually transmitted infections. Design: A systematic review of the state of the evidence regarding the association of pre‐exposure prophylaxis with condom use, sexually transmitted infection incidence and change in sexual risk behaviours in men who have sex with men. A structured search of databases resulted in 142 potential citations, but only 10 publications met inclusion criteria and underwent data abstraction and critical appraisal. Methods: An adapted Cochrane Collaboration domain‐based assessment tool was used to critically appraise the methodological components of each quantitative study, and the Mixed Methods Appraisal Tool was used to critically appraise qualitative and mixed‐methods studies. Results: Condom use in men who have sex with men using pre‐exposure prophylaxis is influenced by multiple factors. Studies indicate rates of sexually transmitted infections in treatment and placebo groups were high. Pre‐exposure prophylaxis did not significantly change sexually transmitted infection rates between baseline and follow‐up. Reporting of sexual risk improved when questionnaires were completed in private by clients. Our review found that pre‐exposure prophylaxis may provide an opportunity for men who have sex with men to access sexual health care, testing, treatment and counselling services. We did not find any conclusive evidence that pre‐exposure prophylaxis users increase sexual risk behaviours. Conclusion: The perception among healthcare providers that pre‐exposure prophylaxis leads to increased sexual risk behaviours has yet to be confirmed. In order to provide effective sexual health services, clinicians need to be knowledgeable about pre‐exposure prophylaxis as an HIV prevention tool. Relevance to clinical practice: In an era where HIV prevention methods are rapidly improving, strategies for sexually transmitted infection testing, treatment, counselling and prevention remain vital to improve health. All healthcare providers are uniquely positioned to promote sexual health through the dissemination of accurate information. [ABSTRACT FROM AUTHOR]