National trends in HIV pre-exposure prophylaxis awareness, willingness and use among United States men who have sex with men recruited online, 2013 through 2017

Assessing Preferences for Long-Acting Injectable Pre-Exposure Prophylaxis Among Young Adult Sexual Minority Men and Transgender Women

OBJECTIVE

Oral pre-exposure prophylaxis (PrEP) is effective in preventing HIV transmission. However, oral PrEP uptake is low, particularly among sexual and gender minority youth who are vulnerable to HIV infection. Alternative methods of PrEP delivery, such as long-acting injectable (LAI) PrEP may overcome barriers and be preferred. However, attitudes and preferences of younger sexual and gender minorities towards LAI PrEP have not been well studied. The purpose of this study is to describe preferences for initiating LAI PrEP among sexual and gender minority youth.

METHODS

We analyzed data collected as part of an HIV prevention randomized trial from January 2022 to February 2023, using multiple regression to identify factors associated with a preference for LAI PrEP.

RESULTS

The study sample (N = 265) was 50% youth of color, mean age 25 years (SD=3.4, range=18-31), and primarily identified as gay (71%) and male (91%). Forty two percent had heard of LAI PrEP and 31% preferred LAI PrEP over other prevention methods. In multiple regression analysis, LAI PrEP preference was associated with identifying as White, previous PrEP experience, and perceived LAI PrEP efficacy.

CONCLUSIONS

We conclude that gaps in awareness exist for LAI PrEP, however it may be preferred over other prevention methods especially in White youth, those with PrEP experience and higher perceptions of its efficacy. More education and outreach are needed to prevent extension of existing race and ethnicity disparities in use of oral daily PrEP to LAI PrEP.

Using the andersen healthcare utilization model to assess willingness to screen for prep in pharmacy-based settings among cisgender sexually minoritized men: results from the 2020 american men's internet survey

BACKGROUND

Pre-exposure prophylaxis (PrEP) to prevent HIV is severely underutilized among sexually minoritized men (SMM). Inequitable access to PrEP-prescribing facilities and providers is a critical barrier to PrEP uptake among SMM. Integrating HIV prevention services, such as PrEP screening, into pharmacy-based settings is a viable solution to addressing HIV inequities in the US. We aimed to examine willingness to obtain PrEP screening in a pharmacy and its associated correlates, leveraging Andersen's Healthcare Utilization Model (AHUM), among a national sample of SMM in the U.S.

METHODS

Data from the 2020 American Men's Internet Survey, an annual online survey among SMM, were analyzed. Drawing on AHUM-related constructs, we used a modified stepwise Poisson regression with robust variance estimates to examine differences in willingness to screen for PrEP in a pharmacy. Estimated prevalence ratios (PR) were calculated with 95% confidence intervals (CI95%).

RESULTS

Out of 10,816 men, most (76%) were willing to screen for PrEP in a pharmacy. Participants were more willing to screen for PrEP in a pharmacy if they (1) had a general willingness to use PrEP (PR = 1.52; CI95% =1.45, 1.59); (2) felt comfortable speaking with pharmacy staff about PrEP (PR = 2.71; CI95% =2.47, 2.98); and (3) had HIV-related concerns (PR = 1.04; CI95% =1.02, 1.06). There were no observed differences in men's willingness to screen for PrEP in a pharmacy by race/ethnicity, education level, annual household income, nor insurance status.

CONCLUSIONS

Strategically offering PrEP screening in pharmacies could mitigate access-related barriers to HIV prevention services among SMM, particularly across various sociodemographic domains. Importantly, this approach has vitally important implications for addressing broader inequities in HIV prevention. Future studies should examine strategies to successfully integrate PrEP screenings in pharmacies among diverse populations, especially among those at elevated risk for HIV.

Validation of a claims-based algorithm to identify pre-exposure prophylaxis indications for tenofovir disoproxil fumarate/emtricitabine prescriptions, United States, 2012-2014: algorithm validation by medical records review

BACKGROUND

To monitor the use of tenofovir disoproxil fumarate/emtricitabine (TDF/FTC) and related medicines for pre-exposure prophylaxis (PrEP) as HIV prevention using commercial pharmacy data, it is necessary to determine whether TDF/FTC prescriptions are used for PrEP, or for some other clinical indication.

OBJECTIVE

To validate an algorithm to distinguish the use of TDF/FTC for HIV prevention or infectious disease treatment.

METHODS

An algorithm was developed to identify whether TDF/FTC prescriptions were for PrEP or for other indications from large-scale administrative databases. The algorithm identifies TDF/FTC prescriptions, and then excludes patients with International Classification of Diseases (ICD)-9 diagnostic codes, medications or procedures that suggest indications other than for PrEP (e.g., documentation of HIV infection, chronic hepatitis B (CHB), or use of TDF/FTC for post-exposure prophylaxis (PEP)). For evaluation, we collected data by clinician assessment of medical records for patients with TDF/FTC, and compared the assessed indication identified by the clinician review with the assessed indication identified by the algorithm. The algorithm was then applied and evaluated in a large urban community-based sexual health clinic.

RESULTS

The PrEP algorithm demonstrated high sensitivity and moderate specificity (99.6%, 49.6%) in the electronic medical record database, and high sensitivity and specificity (99%, 87%) in data from the urban community health clinic.

CONCLUSIONS

The PrEP algorithm classified the indication for PrEP in most subjects treated with TDF/FTC with sufficient accuracy to be useful for surveillance purposes. The methods described can serve as a basis for developing a robust and evolving case definition for antiretroviral prescriptions for HIV prevention purposes.

CLINICALTRIAL

None required.

The Association between Social Support and Pre-Exposure Prophylaxis use among Sexual Minority Men in the United States: A Scoping Literature Review

Sexual minority men (SMM) are disproportionately affected by HIV. Although pre-exposure prophylaxis (PrEP) is an effective way of reducing HIV incidence, PrEP use has remained relatively low. Social support may be one effective factor in increasing PrEP use among SMM, but the association between social support and PrEP use/adherence is not well understood. The objective of this paper was to summarize the current literature on the association of social support and PrEP use among SMM in the United States. A systematic search was conducted using six different databases MEDLINE / PubMed, PsycINFO, Cochrane CENTRAL, Google Scholar, Embase, and Web of Science using terms established from keywords and medical subject headings (MeSH) terms before being adapted to each database. Data were extracted for key study factors (e.g., study population, geographic location, study design) and main findings. This search produced eleven articles: ten manuscripts and one conference abstract. Of these, two were randomized control trials, two were interventions, three were qualitative, and four were cross-sectional. The studies were widespread across the country, but most were in major metropolitan areas. From the articles included in this review, findings were inconsistent in the association between social support; some studies showed null findings, others that only certain sources of social support were significant, and others that there was a significant association between social support and PrEP use. This review highlights the complexity of the relationship between social support and PrEP use among SMM, indicating the need for further research to identify specific types and sources of support that effectively enhance PrEP uptake and adherence. Targeted interventions based on these insights could significantly reduce HIV incidence in the population.

Understanding Preferences for Visualized New and Future HIV Prevention Products Among Gay, Bisexual and Other Men Who Have Sex with Men in the Southern United States: A Mixed-Methods Study

Men who have sex with men (MSM) are vulnerable to HIV infection. Although daily oral pre-exposure prophylaxis (PrEP) prevents HIV among MSM, its usage remains low. We conducted virtual in-depth interviews (IDIs) and focus groups (FGs) with Black, Hispanic/Latino, and White MSM consisting of current PrEP users and those aware of but not currently using PrEP. We delved into their preferences regarding six emerging PrEP products: a weekly oral pill, event-driven oral pills, anal douche/enema, anal suppository, long-acting injection, and a skin implant. Our mixed methods analysis involved inductive content analysis of transcripts for thematic identification and calculations of preferences. Among the sample (n = 98), the weekly oral pill emerged as the favored option among both PrEP Users and PrEP Aware IDI participants. Ranking exercises during FGs also corroborated this preference, with the weekly oral pill being most preferred. However, PrEP Users in FGs leaned toward the long-acting injectable. Conversely, the anal suppository and douche/enema were the least preferred products. Overall, participants were open to emerging PrEP products and valued flexibility but expressed concerns about limited protection for products designed solely for receptive sex. Public health practitioners should tailor recommendations based on individuals' current sexual behaviors and long-term vulnerability to infection.

Characterizing the Communication Networks of Spanish- and English-Speaking Latinx Sexual Minority Men and Their Roles in Pre-Exposure Prophylaxis Uptake

While pre-exposure prophylaxis (PrEP) has demonstrated efficacy in preventing HIV transmission, disparities in access persist in the United States, especially among Hispanic/Latinx sexual minority men (SMM). Language barriers and differences in how Latinx SMM obtain information may impact access to PrEP and HIV prevention. This study used data from the 2021 American Men's Internet Survey (AMIS) to examine differences in communication networks and PrEP use among Latinx SMM by primary language (Spanish vs. English). We examined the associations between Latinx SMM's individual- and meso-level communication networks and PrEP-related outcomes using modified Poisson regression with robust variances. Spanish-speaking Latinx SMM in the study were less likely to test for HIV, be aware of PrEP, and use daily PrEP, compared to English-speaking participants. Sexuality disclosure to a healthcare provider was positively associated with PrEP uptake among all participants and predicted STI testing over the past 12 months among English-speaking Latinx SMM. Findings highlight disparities in PrEP awareness and uptake among Latinx SMM, especially among those whose primary language is Spanish. Addressing these disparities through targeted interventions, including improved communication with healthcare providers, may help facilitate PrEP access and use in this population.

Oral Preexposure Prophylaxis Uptake and Discontinuation in the HIV Vaccine Trials Network 704/HIV Prevention Trials Network 085 Study: Implications for Biomedical Human Immunodeficiency Virus Prevention Trials

Background

HIV Vaccine Trials Network (HVTN) 704/085, a placebo-controlled clinical trial assessing the efficacy of VRC01 broadly neutralizing antibody infusion for HIV prevention, offered oral preexposure prophylaxis (PrEP) as the standard of prevention at no cost to participants.

Methods

We characterized features of- identified factors associated with- PrEP initiation and discontinuation, and the effects of PrEP initiation on HIV incidence.

Results

Of 2221 participants, 31.8% initiated oral PrEP during study follow-up, with the highest proportion of PrEP initiations in Brazil (83.2%) and the United States (US) (54.2%). Prior PrEP use was associated with PrEP initiation (hazard ratio [HR], 2.22 [95% confidence interval {CI}, 1.25-3.95]). Participants from Switzerland (HR, 0.5 [95% CI, .3-1.0]) and Peru (HR, 0.08 [95% CI, .06-.1]) had lower likelihood of PrEP initiation compared to the US, while participants from Brazil had higher likelihood (HR, 2.6 [95% CI, 2.0-3.3]). In the US, PrEP initiation was lower in areas with higher unmet need for PrEP (HR, 0.9 per 5 units [95% CI, 0.8-1.0]). PrEP initiators had 58% less risk of acquiring HIV than PrEP noninitiators. Among PrEP initiators, 34.4% discontinued PrEP during study follow-up. Brazil had 63% less likelihood of PrEP discontinuation than the US (HR, 0.37 [95% CI, .22-.60]).

Conclusions

When included as standard of prevention in HVTN 704/085, oral PrEP utilization patterns mirrored those observed in real-life settings. Variable effects of oral PrEP on HIV outcomes in clinical trials may be expected based on regional differences in oral PrEP use.

Ending the HIV Epidemic in Metropolitan Atlanta: a mixed-methods study to support the local HIV/AIDS response

INTRODUCTION

Four counties within the Atlanta, Georgia 20-county eligible metropolitan area (EMA) are currently prioritized by the US "Ending the HIV Epidemic" (EHE) initiative which aims for a 90% reduction in HIV incidence by 2030. Disparities driving Atlanta's HIV epidemic warrant an examination of local service availability, unmet needs and organizational capacity to reach EHE targets. We conducted a mixed-methods evaluation of the Atlanta EMA to examine geographic HIV epidemiology and distribution of services, service needs and organization infrastructure for each pillar of the EHE initiative.

METHODS

We collected 2021 county-level data (during June 2022), from multiple sources including: AIDSVu (HIV prevalence and new diagnoses), the Centers for Disease Control and Prevention web-based tools (HIV testing and pre-exposure prophylaxis [PrEP] locations) and the Georgia Department of Public Health (HIV testing, PrEP screenings, viral suppression and partner service interviews). We additionally distributed an online survey to key local stakeholders working at major HIV care agencies across the EMA to assess the availability of services, unmet needs and organization infrastructure (June-December 2022). The Organizational Readiness for Implementing Change questionnaire assessed the organization climate for services in need of scale-up or implementation.

RESULTS

We found racial/ethnic and geographic disparities in HIV disease burden and service availability across the EMA-particularly for HIV testing and PrEP in the EMA's southern counties. Five counties not currently prioritized by EHE (Clayton, Douglas, Henry, Newton and Rockdale) accounted for 16% of the EMA's new diagnoses, but <9% of its 177 testing sites and <7% of its 130 PrEP sites. Survey respondents (N = 48; 42% health agency managers/directors) reported high unmet need for HIV self-testing kits, mobile clinic testing, HIV case management, peer outreach and navigation, integrated care, housing support and transportation services. Respondents highlighted insufficient existing staffing and infrastructure to facilitate the necessary expansion of services, and the need to reduce inequities and address intersectional stigma.

CONCLUSIONS

Service delivery across all EHE pillars must substantially expand to reach national goals and address HIV disparities in metro Atlanta. High-resolution geographic data on HIV epidemiology and service delivery with community input can provide targeted guidance to support local EHE efforts.

Do we Still Need Eligibility Criteria to Recommend PrEP? Impact of National Prescribing Requirements on Retention in Care and Sexually Transmitted Infections Acquisition

Italian guidelines recommend HIV pre-exposure prophylaxis (PrEP) only upon satisfying strict eligibility criteria. The objective of this study is to evaluate if PrEP candidates attending a community-based service comply with these criteria and whether these prescribing conditions affect retention in care and sexually transmitted infections (STIs) acquisition. A retrospective analysis was performed on PrEP candidates evaluated from January 2019 to June 2022. Data were collected from self-administered questionnaires and clinical files. The population was divided in subjects with 0/1 (0/1 C) and ≥ 2 (≥ 2 C) criteria. Descriptive statistics and non-parametric tests were employed to describe study population. Incidence of PrEP discontinuation and of STIs was estimated per 100 persons-year of follow up (PYFU), and incidence rate ratio (IRR) was calculated. Univariate and multivariable Cox regression analyses were used to evaluate the association strength between PrEP drop out and other variables. The analyses enrolled 659 individuals: 422 individuals were included in 0/1 C, 237 in ≥ 2 C group, respectively. Inconsistent condom use was the most reported prescribing criteria (399 individuals, 60.6%), followed by a previous STI (186 individuals, 28.2%). 0/1 C exhibited lower STIs incidence. PrEP discontinuation was 29% in 0/1 C and 38% in ≥ 2 C (p = 0.031). Cox model revealed that inconsistent condom use was the only prescribing criteria associated to PrEP persistence. The majority of PrEP candidate did not comply with prescribing conditions. Eligibility criteria failed to identify individuals with better retention in care. Our results suggest that Italian guidelines should be updated removing barriers to prescription.

Willingness to use PrEP among PrEP naïve men who have sex with men: a meta-analysis

This study aimed to measure the pooled estimate of willingness to use HIV pre-exposure prophylaxis (PrEP) (WTUP) among PrEP-naïve United States (U.S.)-based men who have sex with men (MSM). PubMed, Embase, Web of Science, CINAHL, and PsycINFO were searched. The search strategy contained the keyword willingness and interest and the MeSH terms for HIV and PrEP. Articles were included if they were published between January 2005 and May 2022, reported quantitative data on WTUP among PrEP-naïve US-based MSM, and were available as full text in English. Meta-analysis was conducted to assess the pooled effect size of WTUP prevalence using a random-effects model, heterogeneity in the pooled estimate was assessed, and subgroup analyzes were conducted. Fifteen studies were included based on the inclusion and exclusion criteria. Meta-analysis revealed a pooled prevalence proportion for WTUP of 0.58 (95% CI 0.54-0.61) (or 58 out of 100) among PrEP-naïve MSM. High inter-study heterogeneity (Q = 548.10, df = 19, p < 0.01, I2 = 96.53, τ2 = 0.09) was observed. Age of the study sample and region where the data were collected significantly moderated the pooled WTUP estimate. Age-appropriate PrEP related messaging and a focus on HIV priority areas of the U.S. would be important strategies to improve WTUP among MSM in the U.S. moving forward.

HIV PrEP Coverage Among Black Adults: A Concept Analysis of the Inequities, Disparities, and Implications

Background

Significant racial disparities exist in HIV pre-exposure prophylaxis (PrEP) coverage in the United States (U.S), with Black individuals experiencing seven times higher new HIV infection rates compared to their White counterparts. Despite being the highest priority population at risk for HIV, Black adults have the lowest PrEP coverage, impacting the overall progress toward meeting the ending the HIV epidemic (EHE) goals in the U.S.

Methods

Utilizing the Walker and Avant method, this concept analysis examined existing literature and U.S. Centers for Disease Control and Prevention resources to explore HIV PrEP coverage.

Results

Findings highlighted a lack of clarity in the concept, resulting in four operational definitions. To address this ambiguity, a conceptual definition of HIV PrEP coverage was proposed, focusing on equitable access to PrEP medication among sexually active individuals aged 18-64 years, particularly those traditionally underserved and would benefit from PrEP. This inclusive definition aims to align with the dynamics of sexual behavior in racial minority groups. Key attributes of this conceptual definition include estimates of PrEP use, access, need, cost, side effects, frequency of HIV testing, and self-efficacy. Antecedents entail HIV status, testing behaviors, transmission risks, and communication with health care providers. Consequences involve perceptions of risk, screening routines, provider biases, stigma, and potential HIV transmission reduction.

Conclusion

Analyzing HIV PrEP coverage offers useful insights into social and structural factors exacerbating health inequities in the field of HIV prevention and control. This concept analysis underscores the importance of unified sexual health communication, diverse approaches to PrEP access for racial minorities, and improved sexual health policies for Black adults. Moreover, understanding and advocating for equity in HIV PrEP coverage is crucial for addressing the existing racial disparities and achieving the EHE objectives in the U.S.

Variations in HIV Prevention Coverage in Subpopulations of Australian Gay and Bisexual Men, 2017-2021: Implications for Reducing Inequities in the Combination Prevention Era

Using repeated behavioural surveillance data collected from gay and bisexual men (GBM) across Australia, we assessed trends in HIV prevention coverage (the level of 'safe sex' achieved in the population by the use of effective prevention methods, including condoms, pre-exposure prophylaxis [PrEP] and having an undetectable viral load). We stratified these trends by age, country of birth/recency of arrival, sexual identity, and the proportion of gay residents in the participant's suburb. Among 25,865 participants with casual male partners, HIV prevention coverage increased from 69.8% in 2017 to 75.2% in 2021, lower than the UNAIDS target of 95%. Higher levels of coverage were achieved among older GBM (≥ 45 years), non-recently-arrived migrants, and in suburbs with ≥ 10% gay residents. The lowest levels of prevention coverage (and highest levels of HIV risk) were recorded among younger GBM (< 25 years) and bisexual and other-identified participants. Younger, recently-arrived, and bisexual GBM were the most likely to use condoms, while PrEP use was concentrated among gay men, 25-44-year-olds, and in suburbs with more gay residents. The use of undetectable viral load was most common among participants aged ≥ 45 years. Our analysis shows that high HIV prevention coverage can be achieved through a mixture of condom use, PrEP use, and undetectable viral load, or by emphasising PrEP use. In the Australian context, younger, bisexual and other-identified GBM should be prioritised for enhanced access to effective HIV prevention methods. We encourage other jurisdictions to assess the level of coverage achieved by combination prevention, and variations in uptake.

Behavior Change Among HIV-Negative Men Who Have Sex with Men Not Using PrEP in the United States

This study measures changes in condomless anal sex (CAS) among HIV-negative men who have sex with men (MSM) who are not taking pre-exposure prophylaxis (PrEP). It considers the 2014-2019 cycles of the American Men's Internet Survey, a serial, cross-sectional web-based survey of US cisgender MSM aged ≥ 15 years, in which ~ 10% of each year's sample is drawn from the previous year. Among those surveyed for 2 years who remained HIV-negative and off PrEP, reports of having any CAS and of CAS partner number were compared across years. We disaggregated by partner HIV status, and considered demographic predictors. The overall population saw a significant 2.2 percentage-point (pp) increase in reports of any CAS year-over-year. Sub-populations with the largest year-on-year increases were 15-24-year-olds (5.0-pp) and Hispanic respondents (5.1-pp), with interaction (young Hispanic respondents = 12.8-pp). On the relative scale, these numbers correspond to 3.2%, 7.2%, 7.3% and 18.7%, respectively. Absolute increases were concentrated among partners reported as HIV-negative. Multivariable analyses for CAS initiation found effects concentrated among Hispanic and White youth and residents of fringe counties of large metropolitan areas. CAS partner number increases were similarly predicted by Hispanic identity and young age. Although condom use remains more common than PrEP use, increasing CAS among MSM not on PrEP suggests potential new HIV transmission pathways. Concentration of increases among 18-24-year-old MSM portends future increases in the proportion of newly diagnosed HIV that occur among youth. Concentration among young Hispanic MSM will likely expand existing disparities. Although reducing barriers to PrEP remains vital, condom promotion for MSM remains a key public health practice and appears to be missing key audiences. LGBTQ+-inclusive sex education is one avenue for enhancing these efforts.

Awareness and willingness to use pre-exposure prophylaxis for HIV prevention among men who have sex with men in Rwanda: findings from a web-based survey

Introduction

Pre-exposure Prophylaxis (PrEP) is a daily pill aimed at reducing HIV transmission risk when taken as prescribed. It's highly recommended for high-risk Men who have sex with Men (MSM). This study aimed to assess PrEP awareness and willingness to use it among Rwandan MSM, a critical aspect given PrEP's proven effectiveness. The findings are expected to inform policy decisions and further advance the implementation of PrEP strategies.

Methods

This is a cross-sectional study design that utilized a web-based survey conducted between April and June 2019 to assess awareness and willingness to use PrEP among sexually active MSM in Rwanda. A snowball sampling technique was used to recruit participants via social media such as WhatsApp and e-mail. Eligibility criteria included being sexually active, aged ≥18 years, self-identifying as MSM, residing in Rwanda, self-reported engagement in receptive or insertive anal sex in the last 12 months, and self-reported HIV-negative serostatus. We assessed two primary outcomes: PrEP awareness (having ever heard of PrEP) and willingness to use PrEP within one month of completing the survey. Multivariable logistic regression was performed to identify participant characteristics associated with PrEP awareness and willingness to use it.

Results

Out of 521 participants, the majority (73%) demonstrated awareness of PrEP. Factors linked to PrEP awareness included residing outside the capital, Kigali, being in the 18-29 age group, having higher education levels, perceiving a benefit from PrEP, and engaging in vaginal sex with a woman while using a condom in the last year. Additionally, 96% of participants expressed a strong willingness to use PrEP.

Conclusion

Rwandan MSM exhibits a high level of PrEP awareness, notably associated with factors like location, age, education, perceived benefits, and condom use. The study also revealed a strong willingness to use PrEP, indicating promising prospects for its adoption among this group. These findings highlight the need for targeted awareness campaigns, personalized interventions, and comprehensive sexual health education to promote PrEP adoption and strengthen HIV prevention efforts among Rwandan MSM.

[Daily use of HIV pre-exposure prophylaxis among gay, bisexual and other men who have sex with men in Spain: Prevalence and associated factors]

OBJECTIVE

We aim to estimate the prevalence of daily HIV pre-exposure prophylaxis (PrEP) use 6 months after public funding approval in Spain and identify associated factors in a national sample of gay, bisexual and other men who have sex with men (GBMSM).

MATERIAL AND METHODS

We analysed 4692 HIV-undiagnosed GBMSM men recruited via an online questionnaire distributed nationally via gay contact apps and websites between May and July 2020. We estimated the proportion of participants using daily PrEP and identified associated factors using Poisson regression with robust variance.

RESULTS

Daily PrEP use was reported by 2.8% (95% CI 2.3-3.3) of all participants. Daily PrEP use was independently associated with being recruited into community programmes, being older than 30 years, living in a large city, living with men, having condomless anal intercourse with more than 10 sexual partners, using drugs for sex, especially chemsex drugs, and being diagnosed with a sexually transmitted infection.

CONCLUSION

Six months after PrEP was approved in Spain, the prevalence of daily use is low in a national sample of GBMSM men. There is a need to promote access, demand and interest in PrEP, especially among young GBMSM men, those living in small and medium-sized cities, and those who hide their relationships with other men.

Message Framing Strategies to Promote the Uptake of PrEP: Results from Formative Research with Diverse Adult Populations in the United States

There are no evidence-based recommendations for communicating about pre-exposure prophylaxis (PrEP) as part of a broader HIV-prevention messaging approach. To inform future message development related to PrEP uptake, we interviewed 235 individuals across ten locations in the U.S. to explore their understanding and perceptions of draft HIV prevention messages and assess their overall preferences for a broad or PrEP-focused messaging approach. Participants responded favorably to and related to both draft messages. Participants who were not aware of PrEP were more likely to say the broad HIV-prevention message was personally relevant than those aware of PrEP. There were no significant differences in perceived personal relevance for the PrEP-focused message. Qualitative findings suggest that HIV prevention messages should use specific well-defined terms, include links to additional information, and use choice-enhancing language that emphasizes personal agency and frames the call to action as an informed decision among an array of effective prevention options.

Proyecto Facil: Using the Integrated Promoting Action on Research Implementation in Health Services (i-PARIHS) as a Diagnostic Tool to Improve Access to Human Immunodeficiency Virus Pre-Exposure Prophylaxis (PrEP) via Telemedicine

Following the underutilization of pre-exposure prophylaxis (PrEP) among Latinx men who have sex with men (MSM) and transgender women in Southern California and the growing use of the delivery of PrEP through telemedicine, the California Department of Public Health implemented a telemedicine component to their already existing assistance program. We used the integrated Promoting Action on Research Implementation in Health Services (i-PARIHS) framework to identify and characterize factors inhibiting the successful implementation of the telemedicine program through in-depth, online stakeholder interviews and online community focus groups with Latinx MSM and trans women in southern California. Obstacles reported by stakeholders were complicated enrollment process, preference for in-person care, more appealing private sector models of PrEP, while community members reported low awareness of the program, fear of complications due to immigration status, challenges to fulfill enrollment requirements. Findings can used for the future improvement of the ongoing program, as well as other similar PrEP telemedicine programs.

Analyzing the Costs and Impact of the TakeMeHome Program, a Public-Private Partnership to Deliver HIV Self-Test Kits in the United States

BACKGROUND

HIV testing is an entry point to access HIV care and prevention services. Building Healthy Online Communities developed a website ( TakeMeHome.org ) where participants can order HIV home test kits. The purpose of this study was to analyze the costs and impact of the TakeMeHome program.

METHODS

We estimated the costs of TakeMeHome across all participating jurisdictions for the first year of the program. We estimated program costs using purchase orders and invoices, contracts, and allocation of staff time, and the costs included website design, participant recruitment, administration and overhead, HIV self-test kits, and shipping and handling. Primary outcomes of the analysis were total program cost, cost per HIV test, and cost per new HIV diagnosis.

RESULTS

The TakeMeHome program distributed 5323 HIV self-tests to 4859 participants over a 12-month period. The total program cost over this period was $314,870. The cost per HIV test delivered was estimated at $59, and the cost per person tested was $65. The program identified 18 confirmed new HIV diagnoses (0.6% positivity) verified with surveillance data in 7 health jurisdictions at $169,890. The cost per confirmed new HIV diagnosis was estimated at $9440.

CONCLUSIONS

The TakeMeHome program delivered HIV self-testing at a reasonable cost, and the program may be a cost-effective use of HIV prevention resources. The public-private partnership can be an effective mechanism to validate HIV diagnoses identified with self-testing and provide HIV prevention and linkage to care services.

A conceptual analysis of SBIRT implementation alongside the continuum of PrEP awareness: domains of fit and feasibility

Screening, Brief Intervention, and Referral to Treatment (SBIRT) is a supplementary intervention that can be incorporated into the Pre-Exposure Prophylaxis (PrEP) Care Continuum, complementing initiatives and endeavors focused on Human Immunodeficiency Virus (HIV) prevention in clinical care and community-based work. Referencing the Transtheoretical Model of Change and the PrEP Awareness Continuum, this conceptual analysis highlights how SBIRT amplifies ongoing HIV prevention initiatives and presents a distinct chance to address identified gaps. SBIRT's mechanisms show promise of fit and feasibility through (a) implementing universal Screening (S), (b) administering a Brief Intervention (BI) grounded in motivational interviewing aimed at assisting individuals in recognizing the significance of PrEP in their lives, (c) providing an affirming and supportive Referral to Treatment (RT) to access clinical PrEP care, and (d) employing client-centered and destigmatized approaches. SBIRT is uniquely positioned to help address the complex challenges facing PrEP awareness and initiation efforts. Adapting the SBIRT model to integrate and amplify HIV prevention efforts merits further examination.

Lower PrEP Retention among Young and Black Clients Accessing PrEP at a Cluster of Safety Net Clinics for Gay and Bisexual Men

Young men of color who have sex with men are vulnerable to HIV and experience poor PrEP uptake and retention. We conducted a secondary data analysis and calculated adjusted Prevalence Odds Ratios (aPORs) for PrEP retention along with 95% CIs at 90, 180, and 360 days at an organization running safety net clinics in Texas for gay and bisexual men. We found statistically significant association with age, race, in-clinic versus telehealth appointments, and having healthcare insurance. White clients had an aPOR of 1.29 [1.00, 1.67] as compared to Black clients at 90 days. Age group of 18-24 had a lower aPOR than all other age groups except 55 or older at all three time periods. Clients who met providers in person had an aPOR of 2.6 [2.14, 3.19] at 90, 2.6 [2.2, 3.30] at 180 days and 2.84 [2.27, 3.54] at 360 days. Our findings highlight the need for population-specific targeted interventions.

Client Perspectives on the Development of a Rapid PrEP Initiative at a Sexual Health Center in New Orleans, Louisiana

Uptake of PrEP remains suboptimal, especially in the Southern United States. Same-day or "Rapid PrEP Initiatives" (RPIs) in sexual health centers (SHCs) could facilitate access and overcome barriers to PrEP. We studied the adaptation of an RPI from Denver, Colorado to an SHC in New Orleans, Louisiana. Through focus group discussions (FGDs) with local SHC staff and PrEP providers, we developed a preliminary RPI model. In 5 FGDs with SHC clients referred for or taking PrEP, we gathered adaptation recommendations and feedback on model acceptability, feasibility, and utility. Providers and clients voiced unanimous support for the RPI. Clients favored the ease of same-day PrEP initiation and emphasized a desire for navigational support, financial counseling, and integration of PrEP care with their other clinical needs. Clients recommended that SHC providers discuss PrEP and HIV with all patients, regardless of providers' perception of risk. Next steps include small-scale implementation and evaluation.

Adherence and persistence of HIV pre-exposure prophylaxis use in the United States

PURPOSE

To describe medication adherence and persistence of HIV PrEP overall and compare between sex and age groups of commercially insured individuals in the United States.

METHODS

We conducted a national retrospective cohort study of the Merative MarketScan Claims Database from 2011 to 2019 to describe adherence and persistence of PrEP overall and compared between sex and age groups. High adherence was defined as ≥80% of proportion of days covered and persistence was measured in days from initiation to the first day of a 60-day treatment gap.

RESULTS

A total of 29 689 new PrEP users identified. Overall adherence was high (81.9%; 95% confidence interval [CI]: 81.5%-82.3%). Females were more adherent than males (adjusted odds ratio [aOR] 1.87; 95% CI: 1.50-2.34), while those ≥45-years were less adherent than individuals <45-years (aOR 0.87: 95% CI: 0.81-0.93). More than half of individuals discontinued therapy within the first year (median 238.0 days; interquartile range 99.0-507.0 days). Females were less persistent than males (hazard ratio [HR] 1.49; 95% CI: 1.34-1.65), and people ≥45-years old were more persistent (i.e., lower risk of discontinuation) than those <45-years (HR 0.43; 95% CI: 0.33-0.55).

CONCLUSIONS

These findings show adherence to daily PrEP is high among commercially insured individuals but the majority still discontinue in the first year. Future research should investigate what factors influence PrEP discontinuation among this population and ways to reduce barriers to therapy maintenance to ensure the population-level benefits of PrEP treatment.

Attitudes Toward and Beliefs in the Effectiveness of Biomedical HIV Prevention Strategies Among Emerging and Young Adult Sexual Minority Men

BACKGROUND

Pre-exposure prophylaxis (PrEP) and HIV treatment as prevention, which underlies the Undetectable = Untransmittable (U = U) campaign, are two effective biomedical approaches for HIV prevention among sexual minority men (SMM). Attitudes toward PrEP and U = U may differ between SMM emerging adults (EA: 18-24 years old) and young adults (YA: 25-29 years old) to drive differences in sexual behavior. However, to date, few studies assessed the degree to which YAs and EAs differ in their beliefs in the effectiveness of PrEP and U = U.

METHOD

A national sample of 80 SMM in the USA (Mage = 25.1 years; 53.7% racial/ethnic minority; 38.8% EA; 61.3% YA) participated in a 6-month mHealth intervention for PrEP adherence. Non-parametric tests assessed differences in sexual behaviors and attitudes toward the effectiveness of PrEP and U = U between EAs and YAs using baseline data.

RESULTS

Compared to EAs, higher proportions of YAs trusted PrEP's effectiveness and considered condom use unnecessary after taking PrEP. More YAs than EAs were willing to engage in sexual behaviors that they felt too risky before learning about U = U and were more comfortable having condomless sex with HIV-positive partners. Conversely, a greater proportion of EAs than YAs preferred to use condoms even when their partners are on anti-HIV medications.

CONCLUSION

Overall, YAs trusted the effectiveness of U = U and PrEP more than EAs, underscoring developmental differences in SMM's perspectives on biomedical HIV prevention tools. Our findings underscore the importance of tailoring messages on biomedical HIV prevention options differently for EAs and YAs to optimize uptake.

"I Assumed that He Knows Because He's Seen My Profile": HIV Status Disclosure and Condom Use Decisions Among Men who have Sex with Men (MSM) Using Hookup Apps and Websites

In the present study, we sought to better understand how MSM make decisions about HIV disclosure when using hook-up apps/websites and how these decisions relate to condom use during app/website-facilitated sexual encounters. Semi-structured interviews were conducted with 60 MSM (30% living with HIV) who had used hook-up apps and websites to meet sexual partners within the past three months. Results demonstrated a variety of approaches to HIV status disclosure. Some men reported usually discussing HIV status, but others discussed HIV status selectively (e.g., only when asked, when a relationship became more serious). Some men reported that listing one's status in a profile precluded the need to discuss it further. Others noted that leaving an HIV status blank "hinted" at their own or others' HIV positive or negative status. These approaches were closely linked to decisions about condom use. Many men reported serosorting based on inferences or assumptions about partners' HIV status. Together, results highlighted potential gaps in communication that can lead to faulty assumptions about HIV status and subsequent serodiscordant condomless sex and suggest that interventions that promote HIV status disclosure address these potential faulty assumptions.

Trends of nonoccupational postexposure prophylaxis in the United States

OBJECTIVE

To describe national annual rates of nonoccupational postexposure prophylaxis (nPEP) in the United States.

DESIGN

Retrospective cohort study of commercially insured individuals in the Merative MarketScan Database from January 1, 2010 to December 31, 2019.

METHODS

Patients at least 13 years old prescribed nPEP per recommended Centers for Disease Control and Prevention guidelines were identified using pharmacy claims. Rates of use were described overall and stratified by sex, age group, and region. These rates were qualitatively compared to the diagnosis rates of human immunodeficiency virus (HIV) observed in the data. Joinpoint analysis identified inflection points of nPEP use.

RESULTS

Eleven thousand, three hundred and ninety-seven nPEP users were identified, with a mean age of 33.7 years. Most were males (64.6%) and lived in the south (33.2%) and northeast (32.4%). The rate of nPEP use increased 515%, from 1.42 nPEP users per 100 000 enrollees in 2010 to 8.71 nPEP users per 10 000 enrollees in 2019. The comparative nPEP use rates among subgroups largely mirrored their HIV diagnosis rates, that is, subgroups with a higher HIV rate had higher nPEP use. In the Joinpoint analysis significant growth was observed from 2012 to 2015 [estimated annual percentage change (EAPC): 45.8%; 95% confidence interval (CI): 29.4 - 64.3] followed by a more moderate increase from 2015 to 2019 (EAPC 16.0%; 95% CI: 12.6-19.6).

CONCLUSIONS

nPEP use increased from 2010 to 2019, but not equally across all risk groups. Further policy interventions should be developed to reduce barriers and ensure adequate access to this important HIV prevention tool.

Awareness and Willingness to Use HIV Infection Pre-Exposure Prophylaxis among Rwandan Men Who Have Sex with Men: Findings from a Web-based Survey

Introduction

Pre-exposure Prophylaxis (PrEP) is a daily pill intended to reduce the risk of acquiring Human Immunodeficiency Virus (HIV) when taken as prescribed. It is strongly recommended for Men who have sex with Men (MSM) at high risk of HIV transmission to minimize infection risk. Despite its proven effectiveness, there is a lack of information about awareness and willingness to use PrEP among Rwandan MSM. In the context of HIV acquisition, the purpose of this study was to ascertain the awareness and willingness to use PrEP among high-risk Rwandan MSM. The findings of this research will provide valuable perspectives to mold policy and direct the effective execution of PrEP within the country.

Method

This is a cross-sectional study design that utilized a web-based survey conducted between April and June 2019 to assess awareness and willingness to use PrEP among sexually active MSM in Rwanda. A snowball sampling technique was used to recruit participants who were contacted via social medial such as WhatsApp and e-mail. To be eligible, participants were supposed to be sexually active, aged ≥18 years, self-identify as MSM, residence in Rwanda, self-reported engagement in receptive or insertive anal sex in the last 12 months, and self-reported HIV-negative sero-status. We assessed two primary outcomes: PrEP awareness (having ever heard of PrEP) and willingness to use PrEP within one month of completing the survey. Multivariable logistic regression was performed to identify participant characteristics associated with PrEP awareness and willingness to use it.

Results

Among the 521 participants included in the analysis, 63% were aged below 24 years. The majority (73%) demonstrated awareness of PrEP. Factors associated with PrEP awareness included residing outside of the capital, Kigali, as opposed to living in Kigali (adjusted odds ratio [aOR] 2.35, 95% confidence interval [CI] 1.40-3.97), being in the age groups 18-24 years (aOR 2.28, 95% CI: 1.03-5.01) or 25-29 years (aOR 3.06, 95% CI 1.35-6.93) compared to those aged 30 or older, having higher education levels, such as completing secondary education (aOR 1.76, 95% CI 1.01-3.06) or university education (aOR 2.65, 95% CI 1.18-5.96) in contrast to having no education. Lastly, perceiving a benefit from PrEP (aOR 9.52, 95% CI 4.27-21.22), and engaging in vaginal sex with a woman using a condom in the last 12 months (aOR 1.82, 95% CI 1.14-2.91) versus not. Impressively, 96% of participants expressed a strong willingness to use PrEP.

Conclusion

Among Rwandan MSM, there is a high level of awareness of PrEP, notably associated with factors such as residing outside Kigali, younger age, higher education, perceived benefits of PrEP and condom use during vaginal sex in the past year. Furthermore, a significant portion of participants demonstrated an intense desire to use PrEP, suggesting promising possibilities for its extensive implementation among this group of people. The findings from this study emphasize the importance of implementing highly focused awareness campaigns, personalized intervention, and comprehensive sexual health education programs in order to enhance the adoption of PrEP and bolster HIV prevention initiatives among the Rwandan population of MSM.

Behaviors associated with HIV transmission risk among rural sexual and gender minority and majority residents

Multiple rural states and communities experience elevated rates of human immunodeficiency virus (HIV), often associated with diminished healthcare access and increased drug use. Though a substantial proportion of rural populations are sexual and gender minorities (SGM), little is known of this group regarding substance use, healthcare utilization, and HIV transmission behaviors. During May-July 2021, we surveyed 398 individuals across 22 rural Illinois counties. Participants included cisgender heterosexual males (CHm) and females (CHf) (n = 110); cisgender non-heterosexual males and females (C-MSM and C-WSW; n = 264); and transgender individuals (TG; n = 24). C-MSM participants were more likely to report daily-to-weekly alcohol and illicit drug use prescription medication misuse (versus CHf; aOR = 5.64 [2.37-13.41], 4.42 [1.56-12.53], and 29.13 [3.80-223.20], respectively), and C-MSM participants more frequently reported traveling to meet with romantic/sex partners. Further, more C-MSM and TG than C-WSW reported healthcare avoidance and denial due to their orientation/identity (p < 0.001 and p = 0.011, respectively); 47.6% of C-MSM and 58.3% of TG had not informed their provider about their orientation/identity; and only 8.6% of C-MSM reported ever receiving a pre-exposure prophylaxis (PrEP) recommendation. More work is needed to explore the substance use and sexual behaviors of rural SGM, as well as their healthcare interactions, to better target health and PrEP engagement campaigns.

A qualitative assessment of barriers to healthcare and HIV prevention services among men who have sex with men in non-metropolitan areas of the south

HIV cases are increasing in the rural Southern United States, especially among men who have sex with men (MSM). To facilitate healthcare access and encourage HIV prevention for non-metropolitan MSM, it is essential to examine their barriers to care. This qualitative study conducted semi-structured interviews with 20 MSM living in non-metropolitan areas of the South. Analysis revealed that MSM experience multiple barriers accessing healthcare in non-metropolitan areas such as finding knowledgeable and affirming providers with desired characteristics and beliefs and communicating with providers about sexual health and HIV prevention. To aid in identification, many respondents expressed a desire for providers to publicly signal that they provide care for sexual and gender minority patients and are an inclusive clinical space. Overall, results suggest that MSM face unique healthcare-related challenges, beyond those typically experienced by the broader population in non-metropolitan areas, because of tailored identity-based needs. To better support MSM in non-metropolitan areas, especially in the South where increased experiences of stigma are found, providers should seek further training regarding sexual health communication and HIV prevention, indicate on websites and in offices that they support sexual and gender minority patients, and provide telehealth services to MSM living in more geographically isolated areas.

Costs of Providing Preexposure Prophylaxis for HIV Prevention at Community Health Centers in the United States

OBJECTIVE

Preexposure prophylaxis (PrEP) is recommended for people at risk of acquiring HIV. We assessed billable costs associated with PrEP delivery at community health centers.

METHODS

The Sustainable Health Center Implementation PrEP Pilot (SHIPP) study is an observational cohort of people receiving daily oral PrEP at participating federally qualified health centers and other community health centers. We assessed health care utilization and billable costs of providing PrEP at 2 health centers, 1 in Chicago, Illinois, and 1 in Washington, DC, from 2014 to 2018. The health centers followed the clinical practice guidelines for PrEP provision, including regular visits with health care providers and ongoing laboratory monitoring. Using clinic billing records and Current Procedural Terminology (CPT) coding, we retrospectively extracted data on the frequency and costs (in 2017 US dollars) of PrEP clinic visits and laboratory screening, for each patient, for 12 months since first PrEP prescription.

RESULTS

The average annual number of PrEP clinic visits and associated laboratory screens per patient was 5.1 visits and 25.2 screens in Chicago (n = 482 patients) and 5.4 visits and 24.8 screens in Washington, DC (n = 56 patients). The average annual PrEP billable cost per patient was $583 for clinic visits and $1070 for laboratory screens in Chicago and $923 for clinic visits and $1018 for laboratory screens in Washington, DC. The average annual total cost per patient was $1653 (95% CI, $1639-$1668) in Chicago and $1941 (95% CI, $1811-$2071) in Washington, DC.

CONCLUSIONS

Our analysis, which provides PrEP billable cost estimates based on empirical data, may help inform health care providers who are considering implementing this HIV prevention strategy.

Effects of mode of transportation on PrEP persistence among urban men who have sex with men

Little is known about the effect of travel-related factors, such as mode of transportation, on retention in PrEP care, or PrEP persistence. We used data from the 2020 American Men's Internet Survey and conducted multilevel logistic regression to estimate the association between mode of transportation used for healthcare access and PrEP persistence among urban gay, bisexual, and other men who have sex with men (MSM) in the U.S. MSM using public transportation were less likely to report PrEP persistence (aOR: 0.51; 95% CI: 0.28-0.95) than MSM using private transportation. There were no significant associations between PrEP persistence and using active transportation (aOR: 0.67; 95% CI: 0.35-1.29) or multimodal transportation (aOR: 0.85; 95% CI: 0.51-1.43) compared to using private transportation. Transportation-related interventions and policies are needed to address structural barriers to accessing PrEP services and to improve PrEP persistence in urban areas.

The Pre-exposure Prophylaxis (PrEP) Care Continuum Among English-Speaking Latino Sexual Minority Men in the United States (2014-2020)

BACKGROUND

There is limited understanding of the pre-exposure prophylaxis (PrEP) care continuum specific to Latino/x gay, bisexual, and other sexual minority men (SMM) that encompasses the population residing outside of large metropolitan or urban areas.

SETTING

We examined trends and characteristics associated with the PrEP care continuum with data from the 2014-2020 cycles of the American Men's Internet Survey, an annual online cross-sectional behavioral survey of cisgender SMM in the United States.

METHODS

We calculated PrEP continuum outcomes overall and by year among Hispanic/Latino SMM (n = 9010). We used generalized estimating equations with Poisson links to examine (1) temporal trends (2014-2020) in each step of the PrEP continuum and PrEP use in the past year stratified by PrEP eligibility and (2) correlates of each step of the PrEP continuum in 2020 using multivariable models.

RESULTS

Among 2283 Latino SMM in 2020, 84% reported PrEP awareness, 30% discussed PrEP with a provider, 15% used PrEP in the past year, and 12% were currently using PrEP. PrEP awareness increased from 52% in 2014 to 84% in 2020; and PrEP use in the past year increased from 4% in 2014 to 15% in 2020. In the multivariable models, age and PrEP eligibility were associated with PrEP use in the past year, and urban-rural classification was associated with current PrEP use.

CONCLUSIONS

While most of the Latino SMM are aware of PrEP, significant gaps remain in this population in discussing PrEP with a provider and using PrEP that require tailored strategies to enhance access to HIV prevention services.

Dynamics of Pre-Exposure (PrEP) Eligibility Because of Waxing and Waning of HIV Risk in Rakai, Uganda

BACKGROUND

We conducted a retrospective population-based study to describe longitudinal patterns of prevalence, incidence, discontinuation, resumption, and durability of substantial HIV risk behaviors (SHR) for pre-exposure prophylaxis (PrEP) eligibility.

METHODS

The study was conducted among HIV-negative study participants aged 15-49 years who participated in survey rounds of the Rakai Community Cohort Study between August 2011 and June 2018. Substantial HIV risk was defined based on the Uganda national PrEP eligibility as reporting sexual intercourse with >1 partner of unknown HIV status, nonmarital sex without a condom, having genital ulcers, or having transactional sex. Resumption of SHR meant resuming of SHR after stopping SHR, whereas persistence of SHR meant SHR on >1 consecutive visit. We used generalized estimation equations with log-binomial regression models and robust variance to estimate survey-specific prevalence ratios; Generalized estimation equations with modified Poisson regression models and robust variance to estimate incidence ratios for incidence, discontinuation, and resumption of PrEP eligibility.

FINDINGS

Incidence of PrEP eligibility increased from 11.4/100 person-years (pys) in the first intersurvey period to 13.9/100 pys (adjusted incidence rate ratios = 1.28; 95%CI = 1.10-1.30) and declined to 12.6/100 pys (adjusted incidence rate ratios = 1.06; 95%CI = 0.98-1.15) in the second and third intersurvey periods, respectively. Discontinuation rates of SHR for PrEP eligibility were stable (ranging 34.9/100 pys-37.3/100 pys; P = 0.207), whereas resumption reduced from 25.0/100 pys to 14.5/100 pys ( P < 0.001). PrEP eligibility episodes lasted a median time of 20 months (IQR = 10-51).

INTERPRETATION

Pre-exposure prophylaxis use should be tailored to the dynamic nature of PrEP eligibility. Preventive-effective adherence should be adopted for assessment of attrition in PrEP programs.

Targeted social marketing of PrEP and the stigmatization of black sexual minority men

Disparities in HIV incidence and PrEP uptake suggest a need to prioritize Black sexual minority men (SMM) in PrEP social marketing initiatives. However, images linking Black SMM to HIV and PrEP may inadvertently reinforce stigma. We examined HIV-negative/status-unknown Black SMM's responses to targeted PrEP advertisements using mixed methods, including an experiment embedded in a longitudinal online survey (Time 1: n = 96; Time 2 [eight weeks]: n = 73) and four focus groups (n = 18). The full factorial experiment included between-groups and within-subjects comparisons. For between-groups comparisons, each participant was randomly assigned to view one of 12 advertisements, which varied by couple composition (Black SMM couple/Black heterosexual couple/multiple diverse couples/no couples) and campaign (PrEPare for the Possibilities/PlaySure/PrEP4Love). We examined couple composition, campaign, and interaction effects on: advertisement judgments (Time 1), PrEP stigma (Time 1), PrEP motivation (Times 1 and 2), and PrEP behavior (Time 2). For within-subjects comparisons, each participant viewed all 12 advertisements, and we examined couple composition, campaign, and interaction effects on advertisement judgments (Time 2). Focus group participants discussed advertising preferences and responded to the same set of advertisements. For between-groups and within-subjects comparisons, we found significant couple composition effects but no or limited campaign and interaction effects on advertisement judgments. Advertisements featuring Black SMM exclusively were judged as more stigmatizing than advertisements without couples. Advertisements with diverse (vs. no) couples were considered more eye-catching and motivating. There were minimal effects of couple composition and campaign on PrEP stigma, motivation, and behavior. Focus group participants corroborated concerns about the potential for PrEP advertisements to be stigmatizing, suggesting advertisements featuring Black SMM exclusively could be alienating and fuel conspiracy theories. Focus group participants generally favored diverse and less sexualized advertisements, particularly for public spaces. Findings collectively highlight the potential for targeted PrEP advertisements to stigmatize Black SMM and support diverse representation.

Sources of Information about Pre-Exposure Prophylaxis (PrEP) and Associations with PrEP Stigma, Intentions, Provider Discussions, and Use in the United States

The amount and type of information individuals receive about HIV pre-exposure prophylaxis (PrEP) may influence PrEP uptake. We surveyed 331 HIV-negative sexual and gender minorities who have sex with men at a Midwestern Pride festival in 2018 (Mage = 32, 68% White, 87% cisgender men) to assess sources and perceived tone of PrEP information and associated outcomes. Most participants (88%) had heard about PrEP. The most common sources were the internet (70%), social media (59%), and friends (54%). Messages from health campaigns were perceived as most positive and those from religious institutions as least positive. Sources differed based on demographics. Controlling for indications for PrEP use, those who heard about PrEP from health campaigns and those who heard more positive messages reported lower levels of PrEP stigma, βs = -0.27--0.23, ps < .05. Non-users who heard about PrEP from the internet had stronger intentions to use PrEP, β = 0.28, p < .05. Those who heard about PrEP from sexual partners and health campaigns were more likely to discuss PrEP with providers, PRs = 1.60-1.80, ps < .01. Finally, those who heard about PrEP from friends and partners were more likely to use PrEP, PRs = 2.01-2.24, ps < .05. Leveraging sexual partners, social network members, and health campaigns are promising avenues to advance PrEP implementation.

Estimating HIV Incident Diagnoses Among Men Who Have Sex With Men Eligible for Pre-exposure Prophylaxis but Not Taking It: Protocol and Feasibility Assessment of Data Sources and Methods

BACKGROUND

HIV incidence estimates are published each year for all Ending the HIV Epidemic (EHE) counties, but they are not stratified by the demographic variables highly associated with risk of infection. Regularly updated estimates of HIV incident diagnoses available at local levels are required to monitor the epidemic in the United States over time and could contribute to background incidence rate estimates for alternative clinical trial designs for new HIV prevention products.

OBJECTIVE

We describe methods using existing, robust data sources within areas in the United States to reliably estimate longitudinal HIV incident diagnoses stratified by race and age categories among men who have sex with other men (MSM) eligible for pre-exposure prophylaxis (PrEP) but not taking it.

METHODS

This is a secondary analysis of existing data sources to develop new estimates of incident HIV diagnoses in MSM. We reviewed past methods used to estimate incident diagnoses and explored opportunities to improve these estimates. We will use existing surveillance data sources and population sizes of HIV PrEP-eligible MSM estimated from population-based data sources (eg, US Census data and pharmaceutical prescription databases) to develop metropolitan statistical area-level estimates of new HIV diagnoses among PrEP-eligible MSM. Required parameters are number of new diagnoses among MSM, estimates of MSM with an indication for PrEP, and prevalent PrEP use including median duration of use; these parameters will be stratified by jurisdiction and age group or race or ethnicity. Preliminary outputs will be available in 2023, and updated estimates will be produced annually thereafter.

RESULTS

Data to parameterize new HIV diagnoses among PrEP-eligible MSM are available with varying levels of public availability and timeliness. In early 2023, the most recent available data on new HIV diagnoses were from the 2020 HIV surveillance report, which reports 30,689 new HIV infections in 2020, and 24,724 of them occurred in an MSA with a population of ≥500,000. Updated estimates for PrEP coverage based on commercial pharmacy claims data through February 2023 will be generated. The rate of new HIV diagnoses among MSM can be estimated from new diagnoses within each demographic group (numerator) and the total person-time at risk of diagnosis for each group (denominator) by metropolitan statistical area and year. To estimate time at risk, the person-time of individuals on PrEP or person-time after incident HIV infection but before diagnosis should be removed from stratified population size estimates of the total number of person-years with indications for PrEP.

CONCLUSIONS

Reliable, serial, cross-sectional estimates for rates of new HIV diagnoses for MSM with PrEP indications can serve as benchmark community estimates of failures of HIV prevention and opportunities to improve services and will support public health epidemic monitoring and alternative clinical trial designs.

INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID)

DERR1-10.2196/42267.

Examining pharmacies' ability to increase pre-exposure prophylaxis access for black men who have sex with men in the United States

BACKGROUND

Pre-exposure prophylaxis (PrEP) has not effectively reached black men who have sex with men (BMSM). Using innovative, nontraditional health care settings-such as community pharmacies-may improve PrEP uptake among BMSM.

OBJECTIVE

To examine correlates of patient willingness to be screened for PrEP (via human immunodeficiency virus [HIV] testing and risk assessment) in pharmacies among BMSM in the United States.

METHODS

Data from the 2020 American Men's Internet Survey were analyzed. Using a modified Poisson regression method with robust variance estimates, we examined differences in willingness to screen for PrEP in pharmacies among BMSM. A 95% confidence interval (95% CI) was calculated for each estimated prevalence ratio (PR).

RESULTS

Of 826 respondents, 637 (77%) were willing to be screened for PrEP in pharmacies. Having a high school degree (PR 0.76 [95% CI 0.62-0.95]), willingness to use PrEP (1.70 [1.41-2.05]), and comfort speaking with pharmacy staff about PrEP (2.5 [1.86-3.51]) were significantly associated with willingness to screen for PrEP in a pharmacy setting. Importantly, there were no observed differences in willingness by age, employment status, annual household income, or insurance status.

CONCLUSION

Pharmacy-based PrEP access may be an effective strategy to end inequities in HIV, given that our results indicate that most BMSM are willing to be screened for PrEP in pharmacies. Future studies should examine whether willingness to use pharmacy-based HIV prevention services is associated with subsequent uptake of these services among BMSM.

Predictors of Human Immunodeficiency Virus Pre-Exposure Prophylaxis (PrEP) Uptake in a Sexual Health Clinic With Rapid PrEP Initiation

Background

Improved pre-exposure prophylaxis (PrEP) uptake is essential for human immunodeficiency virus (HIV) prevention initiatives. Offering PrEP at the time of HIV and sexually transmitted infection (STI) testing can improve uptake. We offered rapid PrEP initiation in a sexual health clinic and assessed predictors of PrEP interest, initiation, linkage, and retention.

Methods

Between November 2018 and February 2020, PrEP-eligible individuals who presented to a sexual health clinic were offered a free 30-day supply of PrEP plus linkage to continued PrEP care. Univariable and multivariable analyses of demographic and HIV risk data were conducted to determine predictors of PrEP uptake.

Results

Of 1259 adults who were eligible for PrEP (99.7% male, 42.7% White, 36.2% Hispanic), 456 were interested in PrEP, 249 initiated PrEP, 209 were linked, and 67 were retained in care. Predictors of PrEP interest included younger age (P < .01), lower monthly income (P = .01), recreational drug use (P = .02), and a greater number of sexual partners (P < .01). Negative predictors of PrEP initiation included lower monthly income (P = .04), testing positive for chlamydia (P = .04), and exchanging money for sex (P = .01). Negative predictors of linkage included self-identifying as Black (P = .03) and testing positive for an STI (P < .01). Having health insurance positively predicted both linkage (P < .01) and retention (P < .03).

Conclusions

A minority of PrEP-eligible HIV and STI testers initiated PrEP when offered, suggesting that easy PrEP access in sexual health clinics alone may not improve uptake. Predictors of uptake included established HIV risk factors and markers of higher socioeconomic status, suggesting that those aware of their risk and with the means to utilize health services engaged best with this model.

Variations in Pre-exposure Prophylaxis (PrEP) Awareness and Healthcare Provider Interactions in a Nationally Representative Sample of American Men Aged 15-49 Years: A Cross-Sectional Study

Awareness of and discussions with a healthcare provider (HCP) around pre-exposure prophylaxis (PrEP), an effective HIV prevention method, are associated with PrEP uptake, yet few studies utilize representative samples or report on these outcomes using distinct behavioral risk subgroups. This cross-sectional study utilized responses given by men on the 2017-2019 National Survey of Family Growth, a nationally representative survey of Americans aged 15-49 years. Multiple logistic regression models were used to determine how respondents' sociodemographic characteristics and HIV risk behaviors were related to PrEP awareness and HCP discussions. PrEP awareness was low (29.40%) as was the proportion who reported ever discussing PrEP with an HCP (4.48%). Odds of being PrEP aware and discussing PrEP with an HCP varied significantly within sexual behavior subgroups based on sociodemographic and behavioral characteristics highlighting the differential risks within distinct behavioral subgroupings of men. Sexual behavior subgroupings should be considered when promoting PrEP awareness and discussions as HIV risk behaviors vary considerably and sexual identity alone may not sufficiently capture one's HIV risk.

Pre-exposure prophylaxis in the era of emerging methods for men who have sex with men in the USA: the HIV Prevention Cycle of Care model

Expanding on previous work, we present an HIV Prevention Cycle of Care model to facilitate understanding of the complexity of issues involved in pre-exposure prophylaxis implementation for gay, bisexual, and other men who have sex with men (MSM) in the USA, including individual, client-provider, and overarching issues such as health equity, stigma, and prevention nomenclature. The HIV prevention cycle of care applies to MSM who test negative for HIV. The Prevention Cycle of Care model includes seven steps: prevention knowledge, prevention self-awareness and preferences, prevention motivation, health-care access and cost, provider issues, adherence and persistence, and periodic reassessment and adjustment. HIV prevention is complex in an era of emerging multiple modalities, and more research is needed to successfully implement pre-exposure prophylaxis options over time and across diverse communities of MSM who are sexually active.

Missed opportunities for HIV pre-exposure prophylaxis among people with recent HIV infection: The French ANRS 95041 OMaPrEP study

OBJECTIVES

Our objective was to identify missed opportunities for the use of pre-exposure prophylaxis (PrEP) in people with recently acquired HIV, factors associated with PrEP knowledge, and reasons for not using PrEP.

DESIGN

This was a French national cross-sectional multicentre study enrolling people diagnosed with recent HIV (incomplete Western blot or negative HIV test in the previous 6 months) in 28 HIV clinical centres. Data were gathered using a self-administered questionnaire (SAQ).

METHOD

We analysed missed opportunities for PrEP use via a retrospective prep cascade. Factors associated with prior knowledge of PrEP and reasons for PrEP non-use among those who knew about PrEP were described using univariate and multivariate logistic regression models.

RESULTS

Of the 224 eligible patients, 185 completed the SAQ and 168 (91%) were eligible for PrEP. Of these, 90% reported seeing at least one physician during the previous year, 26% received information about PrEP, and 5% used PrEP. Factors independently associated with a higher probability of knowing about PrEP were being a man who has sex with men, being aged 25-30 years (vs older), undergoing HIV screening at least once every semester (vs less often; odds ratio [OR] 4.11; 95% confidence interval [CI] 2.00-8.45), and practicing chemsex (OR 3.19; 95% CI 1.12-9.10). Fear of side effects and a low perceived risk of HIV infection were the two most common reasons for not using PrEP (N = 40 [33.33%] and N = 34 [28.3%], respectively).

CONCLUSIONS

We found two gaps in the retrospective PrEP cascade: insufficient provision of PrEP information by healthcare providers (mainly general practitioners) and low PrEP acceptability by informed, eligible patients. More diverse healthcare providers need to be involved in PrEP prescription, and at-risk people need to be sensitized to the risk of HIV infection.

Overcoming structural barriers to diffusion of HIV pre-exposure prophylaxis

HIV prevention with antiretroviral medication in the form of pre-exposure prophylaxis (PrEP) offers a critical tool to halt the HIV pandemic. Barriers to PrEP access across drug types, formulations, and delivery systems share remarkable commonalities and are likely to be generalizable to future novel PrEP strategies. Appreciation of these barriers allows for planning earlier in the drug-development pathway rather than waiting for the demonstration of efficacy. The purpose of this article is to propose a core set of considerations that should be included in the drug-development process for future PrEP interventions. A literature synthesis of key barriers to PrEP uptake in the United States was conducted to elucidate commonalities across PrEP agents and delivery methods. Based on the published literature, we divided challenges into three main categories of structural barriers: (1) provider and clinic characteristics; (2) cost considerations; and (3) disparities and social constructs, with potential solutions provided for each. Pragmatic strategies for examining and overcoming these barriers before future PrEP regulatory approval are recommended. If these strategies are considered well before the time of commercial availability, the potential for PrEP to interrupt the HIV pandemic will be greatly enhanced.

HIV Positivity, Linkage to Medical Care, Interview for Partner Services, and Pre-Exposure Prophylaxis Awareness and Referral Among Men Who Have Sex With Men Tested in Non-healthcare Settings in the United States, 2019

OBJECTIVES

Gay, bisexual, and other men who have sex with men (MSM) are disproportionately affected by HIV. This study reports data on HIV testing program outcomes among MSM tested for HIV in non-healthcare settings in the United States.

METHODS

We analyzed Centers for Disease Control and Prevention's National HIV Prevention Program Monitoring and Evaluation data collected in 2019. Descriptive and multivariate robust Poisson regression analyses were conducted to summarize the patterns of HIV testing program outcomes [ie, positivity, linkage to HIV medical care within 30 days of diagnosis, interview for partner services (PS), and pre-exposure prophylaxis (PrEP) awareness and referral] by demographic characteristics, HIV prevalence, and testing site type.

RESULTS

A total of 123,251 HIV tests were conducted among MSM; of these, 1773 (1.4%) were newly diagnosed with HIV. Among MSM newly diagnosed with HIV, 75% were linked to HIV medical care and 80% were interviewed for PS. Among MSM who tested HIV-negative, 63% were aware of PrEP and 47% of those who were eligible for PrEP were referred to PrEP providers. Referral or linkage to services varied by demographic characteristics or other factors.

CONCLUSIONS

Linkage to HIV medical care and interview for PS among MSM newly diagnosed with HIV in non-healthcare settings were below national or funding program targets. Most MSM with risk factors for HIV infection were not referred to PrEP providers. Expanded efforts to address barriers to equitable access to services may help improve HIV-related outcomes among MSM and contribute to ending the HIV epidemic in the United States.

An overview of programmatic indicators to monitor the roll-out of HIV preexposure prophylaxis

Preexposure prophylaxis (PrEP) is increasingly implemented in national HIV prevention programmes through routine care. Monitoring will be vital to understand whether programmes succeed in engaging people into using PrEP appropriately, and in reducing the HIV epidemic. Yet, it is currently unclear which indicators are most suited to monitor PrEP programmes' performance. We therefore aimed to identify and map indicators that are currently used or suggested for monitoring PrEP programmes. We conducted a scoping review based on the framework by Arksey and O'Malley. We combined a systematic search in the peer-reviewed literature with hand-searching grey literature documents describing indicators and strategies that are used or suggested for PrEP monitoring. Only literature published after 2012 was included. No geographical restrictions were set. We charted data on indicator definitions, data sources used, reported experiences with monitoring and any relevant contextual factors. Ultimately, 35 peer-reviewed and 14 grey literature records were included. We identified indicators related to preuptake stages of PrEP, uptake and coverage, and programme impact. The indicators most commonly suggested for national-level monitoring were the number of new and current PrEP users, the number of HIV seroconversions among PrEP users and some variably defined indicators related to continuation and discontinuation of PrEP. Despite its perceived high relevance, studies reported several challenges to routinely monitor the population in need of PrEP and track prevention-effective PrEP use. In conclusion, a variety of indicators is currently used or suggested for monitoring PrEP programmes. Implementing proxy measures that track different aspects of PrEP use over time, and making synergies with research more explicit, could be used as strategies to obtain more granular insights into trends revealed by routine monitoring.

Addressing Health Inequities in Digital Clinical Trials: A Review of Challenges and Solutions From the Field of HIV Research

Clinical trials are considered the gold standard for establishing efficacy of health interventions, thus determining which interventions are brought to scale in health care and public health programs. Digital clinical trials, broadly defined as trials that have partial to full integration of technology across implementation, interventions, and/or data collection, are valued for increased efficiencies as well as testing of digitally delivered interventions. Although recent reviews have described the advantages and disadvantages of and provided recommendations for improving scientific rigor in the conduct of digital clinical trials, few to none have investigated how digital clinical trials address the digital divide, whether they are equitably accessible, and if trial outcomes are potentially beneficial only to those with optimal and consistent access to technology. Human immunodeficiency virus (HIV), among other health conditions, disproportionately affects socially and economically marginalized populations, raising questions of whether interventions found to be efficacious in digital clinical trials and subsequently brought to scale will sufficiently and consistently reach and provide benefit to these populations. We reviewed examples from HIV research from across geographic settings to describe how digital clinical trials can either reproduce or mitigate health inequities via the design and implementation of the digital clinical trials and, ultimately, the programs that result. We discuss how digital clinical trials can be intentionally designed to prevent inequities, monitor ongoing access and utilization, and assess for differential impacts among subgroups with diverse technology access and use. These findings can be generalized to many other health fields and are practical considerations for donors, investigators, reviewers, and ethics committees engaged in digital clinical trials.

Trends in preexposure prophylaxis use among sex partners as reported by persons with HIV - United States, May 2015-June 2020

OBJECTIVE

To estimate trends in the proportion of sexually active U.S. adults with HIV (PWH) reporting an HIV-discordant sexual partner taking preexposure prophylaxis (PrEP) and proportion of partners taking PrEP.

DESIGN

The Medical Monitoring Project is a complex sample survey of U.S. adults with diagnosed HIV.

METHODS

We used annual cross-sectional data collected during June 2015-May 2020 to estimate the annual percentage change (EAPC), overall and by selected characteristics, in reported partner PrEP use among PWH with HIV-discordant partners (N = 8707) and reported PrEP use among these partners (N = 15 844).

RESULTS

The proportion of PWH reporting PrEP use by one or more HIV-discordant sex partner rose 19.5% annually (11.3 to 24.4%). The prevalence rose from 6.0 to 17.4% (EAPC, 25.8%) among Black PWH, 10.1 to 26.0% (EAPC, 19.5%) among Hispanic/Latino PWH, and 20.8 to 34.6% (EAPC, 16.3%) among White PWH. Among MSM with HIV, the prevalence increased from 9.6 to 32.6% (EAPC, 28.2%) among Black MSM, 16.6 to 36.0% (EAPC, 15.6%) among Hispanic/Latino MSM, and 24.9 to 44.1% (EAPC, 17.9%) among White MSM. Among HIV-discordant sex partners, the proportion reported to be taking PrEP increased 21.1% annually (7.8 to 18.8%). Reported PrEP use rose from 4.9 to 14.2% (EAPC, 29.9%) among Black partners, 6.5 to 16.8% (EAPC, 20.3%) among Hispanic/Latino partners, and 12.7 to 26.1% (EAPC, 17.0%) among White partners.

CONCLUSIONS

One in five HIV-discordant sexual partners of PWH was reported to be taking PrEP. PrEP use rose among all examined populations, although the increases did not eliminate disparities in PrEP use.

Correlations between community-level HIV preexposure prophylaxis coverage and individual-level sexual behaviors among United States MSM

OBJECTIVE

To evaluate if community-level HIV PrEP coverage is correlated with individual sexual behaviors.

DESIGN

We used demographic, behavioral, and sexual network data from ARTnet, a 2017-2019 study of United States MSM.

METHODS

Multivariable regression models with a Bayesian modeling framework were used to estimate associations between area-level PrEP coverage and seven sexual behavior outcomes [number of total, main, and casual male partners (network degree); count of one-time partnerships; consistent condom use in one-time partnerships; and frequency of casual partnership anal sex (total and condomless)], controlling for individual PrEP use.

RESULTS

PrEP coverage ranged from 10.3% (Philadelphia) to 38.9% (San Francisco). Total degree was highest in Miami (1.35) and lowest in Denver (0.78), while the count of one-time partners was highest in San Francisco (11.7/year) and lowest in Detroit (1.5/year). Adjusting for individual PrEP use and demographics, community PrEP coverage correlated with total degree [adjusted incidence rate ratio (aIRR) = 1.73; 95% credible interval (CrI), 0.92-3.44], casual degree (aIRR = 2.05; 95% CrI, 0.90-5.07), and count of one-time partnerships (aIRR = 1.90; 95% CrI, 0.46-8.54). Without adjustment for individual PrEP use, these associations strengthened. There were weaker or no associations with consistent condom use in one-time partnerships (aIRR = 1.68; 95% CrI, 0.86-3.35), main degree (aIRR = 1.21; 95% CrI, 0.48-3.20), and frequency of casual partnership condomless anal sex (aIRR = 0.23; 95% CrI, 0.01-3.60).

CONCLUSION

Most correlations between community PrEP coverage and sexual behavior were explained by individual PrEP use. However, some residual associations remained after controlling for individual PrEP use, suggesting that PrEP coverage may partially drive community-level differences in sexual behaviors.

Combining the HYM (Healthy Young Men's) Cohort Study and the TRUTH (A Trans Youth of Color Study): Protocol for an Expanded Mixed Methods Study Renewal

BACKGROUND

As we enter the fifth decade of the AIDS epidemic, health researchers and AIDS activists reflect both on the progress that has been made and the importance of continued prevention efforts for those most at risk. As HIV infection rates continue to fluctuate across communities, a trend has emerged with new HIV infections becoming increasingly concentrated-with cascading effects-among people aged <30 years, from marginalized racial and ethnic groups, and who are sexual or gender minorities.

OBJECTIVE

In this paper, we discuss the renewal of the Healthy Young Men's (HYM) Cohort Study and the addition of a subcohort-TRUTH: A Transgender Youth of Color Study. The overarching aim of our renewed study was to inform new intervention strategies; understand linkage to care; and examine changes over time with respect to minority-related stress and intersectional identities and their relationship with substance use, mental health, and HIV risk. Findings from this study will help to inform the development of new interventions designed to engage African American and Black and Latino young men who have sex with men (YMSM) and transgender and gender minority youth in the HIV prevention and care continua and to reduce risk by addressing pathways of minority-related stress and intersectional stigma.

METHODS

Longitudinal study (baseline and follow-up assessments every 6 months for a total of 8 waves of data collection) is ongoing with reconsented cohort from the last iteration of HYM Cohort Study. This study protocol includes self-report survey, collection of urine to assess recent use of illicit drugs, and collection of blood and rectal and throat swabs to test for current sexually transmitted infection and HIV infection. An additional sample of blood and plasma (10 mL for 4 aliquots and 1 pellet) is also collected and stored in the HYM Cohort Study biorepository for future studies. This mixed methods study design includes collection of triangulated analysis of quantitative, qualitative, and biological measures (ie, drug use, sexually transmitted infection and HIV testing, and adherence to antiretroviral therapy among participants who are HIV+) at baseline and every 6 months.

RESULTS

As of February 2022, participants from the past 4 years of the HYM Cohort Study and TRUTH: A Transgender Youth of Color Study Cohort have been reconsented and enrolled into the renewal period of longitudinal data collection, which is projected from summer of 2020 until summer of 2025. Recruitment is ongoing to reach our target enrollment goal of YMSM and transgender minority youth.

CONCLUSIONS

The findings from this study are being used to inform the development of new, and adaptation of existing, evidence-based HIV prevention interventions designed to engage populations of transgender and gender minority youth and YMSM in the HIV prevention and care continua.

INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID)

DERR1-10.2196/39232.

Sexual Mixing by HIV Status and Pre-exposure Prophylaxis Use Among Men Who Have Sex With Men: Addressing Information Bias

BACKGROUND

Population-level estimates of sexual network mixing for parameterizing prediction models of pre-exposure prophylaxis (PrEP) effectiveness are needed to inform prevention of HIV transmission among men who have sex with men (MSM). Estimates obtained by egocentric sampling are vulnerable to information bias due to incomplete respondent knowledge.

METHODS

We estimated patterns of serosorting and PrEP sorting among MSM in the United States using data from a 2017-2019 egocentric sexual network study. Respondents served as proxies to report the HIV status and PrEP use of recent sexual partners. We contrasted results from a complete-case analysis (unknown HIV and PrEP excluded) versus a bias analysis with respondent-reported data stochastically reclassified to simulate unobserved self-reported data from sexual partners.

RESULTS

We found strong evidence of preferential partnering across analytical approaches. The bias analysis showed concordance between sexual partners of HIV diagnosis and PrEP use statuses for MSM with diagnosed HIV (39%; 95% simulation interval: 31, 46), MSM who used PrEP (32%; 21, 37), and MSM who did not use PrEP (83%; 79, 87). The fraction of partners with diagnosed HIV was higher among MSM who used PrEP (11%; 9, 14) compared with MSM who did not use PrEP (4%; 3, 5). Comparatively, across all strata of respondents, the complete-case analysis overestimated the fractions of partners with diagnosed HIV or PrEP use.

CONCLUSIONS

We found evidence consistent with HIV and PrEP sorting among MSM, which may decrease the population-level effectiveness of PrEP. Bias analyses can improve mixing estimates for parameterization of transmission models.

Examining provincial PrEP coverage and characterizing PrEP awareness and use among gay, bisexual and other men who have sex with men in Vancouver, Toronto and Montreal, 2017-2020

INTRODUCTION

Accessibility of pre-exposure prophylaxis (PrEP) in Canada remains complex as publicly funded coverage and delivery differs by province. In January 2018, PrEP became publicly funded and free of charge in British Columbia (BC), whereas PrEP coverage in Ontario and Montreal is more limited and may require out-of-pocket costs. We examined differences over time in PrEP uptake and assessed factors associated with PrEP awareness and use.

METHODS

Gay, bisexual and other men who have sex with men (GBM) were recruited through respondent-driven sampling (RDS) in Toronto, Vancouver and Montreal, Canada, in a prospective biobehavioural cohort study. We applied generalized estimating equations with hierarchical data (RDS chain, participant, visit) to examine temporal trends of PrEP use and correlates of PrEP awareness and use from 2017 to 2020 among self-reported HIV-negative/unknown GBM.

RESULTS

Of 2008 self-identified HIV-negative/unknown GBM at baseline, 5093 study visits were completed from February 2017 to March 2020. At baseline, overall PrEP awareness was 88% and overall PrEP use was 22.5%. During our study period, we found PrEP use increased in all cities (all p<0.001): Montreal 14.2% during the first time period to 39.3% during the last time period (p<0.001), Toronto 21.4-31.4% (p<0.001) and Vancouver 21.7-59.5% (p<0.001). Across the study period, more Vancouver GBM used PrEP than Montreal GBM (aOR = 2.05, 95% CI = 1.60-2.63), with no significant difference between Toronto and Montreal GBM (aOR = 0.90, 95% CI = 0.68-1.18).

CONCLUSIONS

Full free-of-charge public funding for PrEP in BC likely contributed to differences in PrEP awareness and use. Increasing public funding for PrEP will improve accessibility and uptake among GBM most at risk of HIV.

Association between the geographic accessibility of PrEP and PrEP use among MSM in nonurban areas

PURPOSE

The US HIV epidemic has become a public health issue that increasingly affects men who have sex with men (MSM), including those residing in nonurban areas. Increasing access to pre-exposure prophylaxis (PrEP) in nonurban areas will prevent HIV acquisition and could address the growing HIV epidemic. No studies have quantified the associations between PrEP access and PrEP use among nonurban MSM.

METHODS

Using 2020 PrEP Locator data and American Men's Internet Survey data, we conducted multilevel log-binomial regression to examine the association between area-level geographic accessibility of PrEP-providing clinics and individual-level PrEP use among MSM residing in nonurban areas in the United States.

FINDINGS

Of 4,792 PrEP-eligible nonurban MSM, 20.1% resided in a PrEP desert (defined as more than a 30-minute drive to access PrEP), and 15.2% used PrEP in the past 12 months. In adjusted models, suburban MSM residing in PrEP deserts were less likely to use PrEP in the past year (adjusted prevalence ratio [aPR] = 0.35; 95% confidence interval [CI] = 0.15, 0.80) than suburban MSM not residing in PrEP deserts, and other nonurban MSM residing in PrEP deserts were less likely to use PrEP in the past year (aPR = 0.75; 95% CI = 0.60, 0.95) than other nonurban MSM not residing in PrEP deserts.

CONCLUSIONS

Structural interventions designed to decrease barriers to PrEP access that are unique to nonurban areas in the United States are needed to address the growing HIV epidemic in these communities.