Relationships among Substance Use, Sociodemographics, Pre-Exposure Prophylaxis (PrEP) Awareness and Related Attitudes among Young Adult Men Who Have Sex with Men

Factors associated with PrEP awareness and use among men who have sex with men who use drugs in the Southern United States

ABSTRACTPre-exposure prophylaxis (PrEP) dramatically reduces HIV transmission risk. PrEP is underutilized among men who have sex with men who use substances (SU-MSM) in the Southern U.S., for whom there is limited research and high PrEP need. Using cross-sectional data from the National Institute on Drug Abuse (NIDA) Clinical Trials Network (CTN) 0082 study, we explored factors associated with PrEP awareness and use among 225 SU-MSM in the Southern U.S. Participants were recruited from community-based sexually transmitted infection clinics, syringe services programs and outpatient substance use treatment programs in eight cities across five Southern states with high HIV incidence. Multinomial logistic regressions examined PrEP awareness and use relative to sociodemographic factors, sexual behaviors and substance use. Results demonstrated overall high awareness, yet limited uptake of PrEP. Younger age, higher education, condomless anal sex and more frequent popper use were associated with greater odds of PrEP awareness. Higher education, condomless anal sex and more frequent popper use were associated with greater odds of PrEP use. Results highlight the need for innovative PrEP outreach to Southern SU-MSM that accounts for age, education and substances used.

Barriers and Facilitators Along the PrEP Continuum of Care Among Latinx Sexual Minoritized Men and Transgender Women: A Systematic Review

Latinx cisgender sexually minoritized men (SMM) and transgender women (TW) in the U.S. are disproportionately affected by HIV. Although pre-exposure prophylaxis (PrEP) is a highly effective strategy for HIV prevention, rates of PrEP use among Latinx SMM and TW remain suboptimal. The main purpose of this systematic review was to (1) describe engagement in the various stages of the PrEP care continuum among Latinx SMM and TW, and (2) identify multilevel determinants that function as barriers or facilitators to engagement in the PrEP continuum of care for Latinx SMM and TW. This review was conducted according to the Preferred Reporting Items for Systematic Reviews and Meta-Analysis Statement (PRISMA). Five databases (MEDLINE, CINAHL, PsycINFO, Embase, Scopus) were searched to examine the available qualitative, quantitative, and mixed method studies relevant to the research question. A total of 56 studies were included, with the majority focusing on SMM and being cross-sectional in design. Barriers included PrEP knowledge, risk perception, intersecting stigma, and structural conditions. Community resources, social support, and PrEP navigation services facilitated engagement in the PrEP continuum of care. This review highlights the complex factors that influence PrEP care engagement among Latinx SMM and TW. These findings call for comprehensive, multilevel approaches to address inequities disparities in PrEP care engagement among these groups.

Interest in and Willingness to Use PrEP: A Cross-Sectional Study of Individuals with Problematic Substance Use Residing in a High HIV Prevalence Jurisdiction

Although it is an effective HIV prevention method, pre-exposure prophylaxis (PrEP) is underutilized in the Southern US. Many people who use drugs (PWUD) have increased susceptibility to HIV which could be lessened by using PrEP. Potential barriers to PrEP use include lack of awareness of PrEP, low knowledge about HIV prevention, low self-efficacy for HIV prevention, inaccurate risk perceptions, and anticipated stigma. The current study examined predisposing, enabling, and reinforcing factors that may predict interest in PrEP. The purpose of the current study was to explore factors associated with interest in and willingness to use daily oral and long acting injectable PrEP among sexually active adult PWUD. The data were collected from adult participants (n = 270) residing in Harris County, TX, who self-reported problematic substance use and who reported oral, anal, or vaginal sex in the six months prior to completing the survey. The survey was distributed and completed online via Qualtrics Panels in March of 2022 and included measures of PrEP and HIV knowledge, PrEP stigma, sexual health self-efficacy, experiences of discrimination, health literacy, and medical mistrust. The majority of participants reported circumstances or behaviors that increased their susceptibility to HIV. Findings indicated that PrEP user stereotypes and PrEP anticipated disapproval by others were associated with interest in using daily oral PrEP and willingness to use long acting injectable PrEP. These results provide insight into reasons for low PrEP uptake among PWUD who live in a high HIV prevalence jurisdiction. Implications for HIV prevention intervention are discussed.

A Behavioral Economic Examination of Sexual Behaviors in the Era of Pre-exposure Prophylaxis via Explanatory Sequential Mixed Methods

Pre-exposure prophylaxis (PrEP) use may be associated with condom use decisions. The current investigation examined sexual decision-making in the context of PrEP among young adult men who have sex with men (MSM) between 18 and 30 years old, using an explanatory sequential mixed methods design. For the quantitative aim, 99 MSM currently taking PrEP (i.e., PrEP-experienced) and 140 MSM not currently taking PrEP (i.e., PrEP-naive) completed an online survey, including the Sexual Delay Discounting Task (SDDT), which captures likelihood of condom use. For the qualitative aim, 15 people from each group were interviewed about their (1) conceptualizations of risky sex and (2) ways they manage their sexual risk. Participants were, on average, 25.69 years old (SD = 3.07) and 64% White. Results from the quantitative aim revealed, controlling for covariates, PrEP-experienced participants exhibited significantly lower likelihood of (1) using an immediately available condom and (2) waiting for a delayed condom (i.e., sexual delay discounting) compared to PrEP-naive participants. Qualitative themes explaining what young adult MSM consider to be risky sex included: (1) any sex as risky sex, (2) risky sex as "sex without a conversation," and (3) risky sex as sex with risk for physical harm. Themes on ways young adult MSM manage sexual risk were classified as proactive, reactive, and passive. Results suggest that PrEP use is related to condom use decisions. Taken together, quantitative differences in sexual delay discounting, but qualitatively similar conceptualizations and management of risky sex, suggest that the SDDT may be a useful tool in sex research to capture processes (i.e., delay discounting) underlying sexual decision-making that may be missed by traditional self-reports. Implications of results, including potentially providing (good quality) condoms with every PrEP prescription, and future research topics are discussed.

Use of preexposure prophylaxis and condom purchasing decisions

Preexposure prophylaxis (PrEP) prevents human immunodeficiency virus (HIV) but not other sexually transmitted infections (STIs). Men who have sex with men (MSM) who take PrEP tend to report reduced condom use, but little is known about the underlying mechanisms. For this study, MSM who take PrEP (i.e., PrEP experienced; n = 88) and MSM who do not (i.e., PrEP naïve; n = 113) completed an online study, including the condom purchase task (CoPT). The CoPT assesses decisions to purchase condoms across escalating prices (range: free-$55) for sex with different types of hypothetical partners: those least likely to have an STD (least STD) and those that participants most want to have sex with (most want sex with). When condoms were free, PrEP-experienced MSM had a lower rate of condom purchasing than did PrEP-naïve MSM. For both partner types, PrEP-experienced MSM reached a price break point (i.e., would not buy condoms) at a lower price than did PrEP-naïve pariticipants. For the most-want-sex-with partner at the price at which participants elected not to buy condoms, only 23% of PrEP-experienced MSM chose to abstain from sex when not purchasing condoms versus 53% among PrEP-naïve MSM. Similar patterns were observed for the least-STD partner. The results support the potential utility of the CoPT in identifying behavioral mechanisms related to condom use and PrEP.

Retrospective audit of a convenience cohort of individuals on HIV pre-exposure prophylaxis in Alberta, Canada

BACKGROUND

We undertook an audit of a province-wide HIV pre-exposure prophylaxis (PrEP) program in Alberta (Canada).

METHODS

A retrospective record review of individuals accessing PrEP in Alberta included demographics, PrEP indication(s), and reported non-prescription drug and alcohol use from March 2016 to June 2019. Hepatitis A, B, C, HIV and syphilis serology, serum creatinine, and nucleic acid amplification tests testing for chlamydia and gonorrhea were collected. Descriptive statistics, incidence, and prevalence were calculated.

RESULTS

A total of 511 participants were seen at STI, sexual, and reproductive health clinics and private family practitioner (FP) offices; 98.4% (503) were men, median age was 34 years (IQR 28-43 years), and 89.8% (459) were gay or bisexual men who have sex with men. Non-prescription drug use was reported by 39.3% (201) and alcohol use by 55.4% (283). 94.3% (482) reported condomless anal sex in the past 6 months. Testing rates were high (>95%) for all tests except for chlamydia and gonorrhea at the first follow-up visit 89.6%; (3-4 months). There was one HIV seroconversion. The incidence of new bacterial STIs was high: chlamydia 17 cases per 100 person-years (95% CI 13.5% to 21.4%), gonorrhea 11.14 cases per 100 person-years (95% CI 8.3% to 15.0%), and syphilis 1.94 cases per 100 person-years (95% CI 0.73% to 5.12%).

CONCLUSIONS

Following implementation of a provincial program for PrEP in Alberta, PrEP initiation and continuation was feasible in a range of settings and by both specialists and FPs.

Smoking Intervention Practices in Texas Healthcare Centers with Sexual and Gender Minority Patients

Objectives

This study evaluated the use of evidence-based practices (EBPs) for smoking cessation in centers providing behavioral healthcare for patient populations that included some proportion of sexual and gender minorities (SGMs).

Methods

Healthcare providers from 75 healthcare centers across Texas serving SGMs with behavioral health needs participated in a survey assessing their center's tobacco control policies and practices.

Results

Nearly half (N = 36) of participating centers had a comprehensive tobacco-free workplace policy, 30.67% employed ≥1 tobacco treatment specialist, 73.91% employed ≥1 prescriber, 80.82% mandated screening for patient tobacco use at intake, and 57.53% provided a template for tobacco use assessments. Overall, 70.67% of providers asked patients about smoking status, 69.33% advised patients to quit, 64.00% assessed patients' interest in quitting, 58.67% assisted patients with quit attempts, and 36.00% arranged follow-up. Providers' ability to tailor interventions for special populations like SGMs ranged from very low/0 to very high/10 (M = 4.63 ± 2.59).

Conclusions

There are opportunities to improve policy implementation, standardization and usage of evidence-based interventions, and intervention tailoring within settings providing care to SGM patients in Texas to better address their tobacco use inequities.

Assessing the Prevalence and Determinants of Exposure-Influenced HIV Testing among a Sample of Pre- and Post-Exposure Prophylaxis-Naïve Young Men Who Have Sex with Men in the United States

Self-initiated Human Immunodeficiency Virus (HIV) testing after potential sexual exposure to HIV (i.e., exposure-influenced HIV testing) has high utility in detecting individuals with the highest probabilities of HIV seroconversion. We conducted a cross-sectional study among a sample of sexually active, pre/post-exposure prophylaxis (PrEP/PEP)-naïve young men who have sex with men (YMSM) in two US cities to assess the determinants (e.g., demographic, psychosocial, sexual, substance use, and HIV prevention characteristics) of exposure-influenced HIV testing (never/rarely vs. mostly/always) in their lifetime. Of 261 YMSM, only 26.5% reported mostly/always seeking exposure-influenced prior to the study. Multivariable analyses showed that younger age, sexual orientation non-disclosure, perceived HIV stigma, internalized homophobia, lower general resilience, and lower social support were associated with a lower likelihood of mostly/always seeking exposure-influenced HIV testing. YMSM who never/rarely sought exposure-influenced HIV testing were more likely to use recreational drugs before sex, binge alcohol, and have group sex; while less likely to be aware of PrEP, test for sexually transmitted infections, or use condoms compared to those mostly/always seeking exposure-influenced HIV testing. Exposure-influenced HIV testing is suboptimal among YMSM with elevated risk for HIV. Our findings provide important implications for designing targeted interventions to promote exposure-influenced HIV testing among high-risk YMSM.