Possible risk compensation, attitudes, and beliefs among Brazilian individuals potentially eligible for pre-exposure prophylaxis.

Pre-exposure prophylaxis (PrEP) prevents HIV infection among men who have sex with men (MSM) and transgender women (TGW) who are the groups that presents the high incidence risk in Brazil. This cross-sectional secondary analysis describes possible risk compensation, attitudes, and beliefs regarding the use of PrEP among 723 MSM and TGW evaluated in the PrEP Brazil study pre-screening phase. Possible risk compensation was reported by 31.6% individuals. In the multivariate model, factors that increased the likelihood of possible risk compensation were: self-referring as white vs. Black (AOR 2.05; CI 1.09, 3.85), perceiving high likelihood of getting HIV in next 12 months (AOR 1.78; CI 1.23, 2.56), being less afraid of HIV infection if using PrEP (AOR 1.93; CI 1.19, 3.14), feeling liberated to have more partners if using PrEP (AOR 2.93; CI 1.92, 4.49), and believing closest friends would use PrEP (AOR 2.51; CI 1.1, 5.71). We found that possible risk compensation was more common among individuals who presented high-risk perception for HIV infection, probably reflecting they feel at risk and could benefit from PrEP use.

Do men who have sex with men who report alcohol and illicit drug use before/during sex (chemsex) present moderate/high risk for substance use disorders?

BACKGROUND: We evaluated the prevalence of sexualized drug use (Chemsex) and its association with moderate/high risk for substance use disorders and HIV sexual risk behavior among men who have sex with men (MSM). METHODS: We conducted a cross-sectional web-based survey among MSM from Rio de Janeiro (Brazil). The Alcohol, Smoking and Substance Involvement Screening Test (ASSIST) was used to screen people at moderate/high-risk for substance use disorders. Individuals found to be using substances in the prior three months were asked if they used before/during sex. Sexualized drug use was classified into: no sexualized drug use, sex using only alcohol (alcohol-sex), sex using only illicit drugs (drug-sex) and sex using alcohol and illicit drugs (alcohol-drug-sex). The questionnaire included questions about sociodemographic, HIV status/prevention and risk behavior. A multinomial regression model was performed to assess the factors associated with sexualized drug use. RESULTS: Overall, 1048 MSM completed the questionnaire; median age was 29 years. Prevalence of alcohol and illicit drug use in previous 3 months was 89 % and 49 %, respectively. Most MSM (64 %) reported sexualized drug use: 28 % alcohol-sex, 9 % drug-sex and 27 % alcohol-drug-sex. Median ASSIST scores were higher among those reporting sexualized drug use compared to no use. All HIV sexual risk behavior variables presented increasing prevalence across the outcome categories. In the adjusted multivariate model, having moderate/high-risk for substance use disorders were associated with sexualized drug use. CONCLUSIONS: MSM reporting sexualized drug use should receive brief intervention for substance use disorders and be evaluated for combination HIV prevention strategies including PrEP.

Awareness, Willingness, and PrEP Eligibility Among Transgender Women in Rio de Janeiro, Brazil.

BACKGROUND: HIV epidemics disproportionately affect transwomen worldwide. Trans-specific guidance, outreach, and interventions to increase pre-exposure prophylaxis (PrEP) use among transwomen are scarce. SETTING: Rio de Janeiro, Brazil. METHODS: We measured awareness and willingness to use PrEP and examined factors associated with those outcomes among transwomen in Rio de Janeiro and estimated how many transwomen would be eligible for PrEP. Data originate from Transcender study, a respondent-driven sampling survey conducted from August 2015 to January 2016. We performed regression models for PrEP awareness and willingness. RESULTS: One hundred thirty-one (38.0%) of 345 participants had heard of PrEP. Among transwomen who self-reported as HIV-negative, 162 (76.4%, N = 212 with available data) reported willingness to use it and 163 (66.8%, N = 244) met PrEP behavioral eligibility criteria. Transwomen with health access in the previous 6 months who reported HIV-infected sexual partner and with 8+ years of schooling had increased odds of PrEP awareness. Lower PrEP awareness was associated with condomless anal intercourse and newly diagnosed HIV infection. Younger age and perceiving themselves at risk of HIV infection increased the odds of PrEP willingness. Lower odds of PrEP willingness were associated with concerns about long-term effects of PrEP and with difficulties in getting access to health care due to transphobia. CONCLUSION: Combination of low awareness, high willingness, and substantial PrEP eligibility corroborates transwomen as a key population for HIV prevention. PrEP is a promising and empowering strategy for HIV prevention among transwomen, but trans-specific recommendations are needed to effectively implement PrEP in this population.

Syndemics among individuals enrolled in the PrEP Brasil Study.

BACKGROUND: Concurrent psychosocial problems may synergistically increase the risk of HIV infection (syndemics), representing a challenge for prevention. We aimed to evaluate the prevalence and associated factors of syndemics among men who have sex with men (MSM) and transgender women (TGW) enrolled in the Brazilian pre-exposure prophylaxis demonstration study (PrEP Brasil Study). METHODS: Secondary cross-sectional analysis of the PrEP Brasil Study was performed. Of 450 HIV-seronegative MSM/TGW enrolled in the PrEP Brasil Study- conducted at Rio de Janeiro and São Paulo, Brazil- 421 participants with complete data were included in the present analysis. Syndemics was defined as occurrence of ≥2 of the following conditions: polysubstance (≥2) use, binge drinking, positive depression screen, compulsive sexual behavior, and intimate partner violence (IPV). RESULTS: The prevalence of recent polysubstance use was 22.8%, binge drinking 51.1%, positive depression screening 5.2%, compulsive sexual behavior 7.1%, and IPV 7.3%. Syndemics prevalence was 24.2%, and associated factors were younger age (adjusted Odds Ratio (aOR) 0.95, 95% Confidence Interval (95% CI) 0.92-0.98 per year increase), TGW vs. MSM (aOR 3.09, 95% CI: 1.2-8.0), some college education or more vs. less than college (aOR 2.49, 95% CI: 1.31-4.75), and multiple male sexual partners in prior 3 months (aOR 1.69, 95% CI: 0.92-3.14). CONCLUSION: Given the high prevalence of syndemics, particularly of polysubstance use and binge drinking, PrEP delivery offers an opportunity to diagnose and intervene in mental and social well-being.

Acceptability and feasibility of HIV self-testing among men who have sex with men in Peru and Brazil.

HIV self-testing has the potential to increase testing frequency and uptake. This pilot study assessed the feasibility and acceptability of HIV self-testing in a sample of sexually active men who have sex with men (MSM) in Peru and Brazil. Participants were trained to use a whole blood rapid HIV self-test and instructed to use the self-test monthly during this three-month study. Test acceptability was measured with self-reported use of the test at the one-month and three-month study visits, and test feasibility was assessed by direct observation of self-test administration at the final three-month visit. A total of 103 participants (52 in Peru and 51 in Brazil) were enrolled, and 86% completed the three-month study. Nearly all participants reported use of the self-test (97% at one-month and 98% at three-month visit), and all participants correctly interpreted the self-administered test results when observed using the test at the final study visit. HIV self-testing with a blood-based assay was highly acceptable and feasible. HIV self-testing may have the potential to increase testing frequency and to reach high-risk MSM not currently accessing HIV-testing services.