Pre-exposure prophylaxis: awareness, acceptability and risk compensation behaviour among men who have sex with men and the transgender population

A Scoping Review of the Current Landscape of Pre-Exposure Prophylaxis and Postexposure Prophylaxis in India

This scoping review aimed to review and summarize the evidence related to the attitudes toward human immunodeficiency virus (HIV) pre-exposure prophylaxis (PrEP)/postexposure prophylaxis (PEP) among people at risk of HIV, health care workers (HCWs), and the general population in India. A literature search of PubMed, Embase, Scopus, and PsycINFO was conducted from January 1, 2002, to February 1, 2024. The search field contained a combination of keywords and MeSH terms such as: HIV, PrEP, PEP knowledge, awareness, willingness, and practice. Studies published in English language, conducted in India, and having reported at least one prespecified outcome related to PrEP or PEP were included. Of 599 studies identified, 48 were included (PrEP, n = 17 studies; PEP, n = 31 studies). Among the people at risk of HIV, awareness about PrEP was very low (17% or less). However, willingness to use PrEP and interest in knowing more or obtaining PrEP were reported to be high (84-95%). Among the health care professionals, the knowledge and awareness of PEP and its dosing schedule varied from 20% to 96%. The uptake to prevent this occupational hazard was reported to be poor (12-36%). This scoping review highlighted critical research gaps related to PrEP and PEP in India, related to PrEP adherence, outcomes related to nonoccupational PEP, HCW readiness to provide PrEP, etc. Overall, this study indicated the need to design policies and implement interventions aimed toward improving the knowledge, awareness, and uptake of PrEP/PEP in India. An increased focus on improving PrEP/PEP access in India through government schemes at a lower cost is imperative.

Behavioral Intention of Receiving Monkeypox Vaccination and Undergoing Monkeypox Testing and the Associated Factors Among Young Men Who Have Sex With Men in China: Large Cross-Sectional Study

BACKGROUND

The worldwide human monkeypox (mpox) outbreak in 2022 mainly affected men who have sex with men (MSM). In China, young men who have sex with men (YMSM) were at a potential high risk of mpox infection due to their sexual activeness and the eased COVID-19 restrictions at the end of 2022.

OBJECTIVE

This study aimed to investigate the behavioral intention of receiving mpox vaccination and undergoing mpox testing in 4 different scenarios and explore their associations with background and behavioral theory-related factors among Chinese YMSM.

METHODS

An online cross-sectional survey was conducted among YMSM aged 18-29 years from 6 representative provinces of China in September 2022. Participants recruited (recruitment rate=2918/4342, 67.2%) were asked to self-administer an anonymous questionnaire designed based on prior knowledge about mpox and classic health behavior theories. Data on the participants' background, mpox knowledge and cognition, mpox vaccination and testing cognition, and the behavioral intention of receiving mpox vaccination and undergoing mpox testing were collected. Descriptive analysis and univariate and multivariate linear regressions were performed. Geodetector was used to measure the stratified heterogeneity of behavioral intention.

RESULTS

A total of 2493 YMSM with a mean age of 24.6 (SD 2.9) years were included. The prevalence of having a behavioral intention of receiving mpox vaccination ranged from 66.2% to 88.4% by scenario, varying in epidemic status and cost. The prevalence of having an mpox testing intention was above 90% in all scenarios regardless of the presence of symptoms and the cost. The positive factors related to vaccination intention included mpox knowledge (ba=0.060, 95% CI 0.016-0.103), perceived susceptibility of mpox (ba=0.091, 95% CI 0.035-0.146), perceived severity of mpox (ba=0.230, 95% CI 0.164-0.296), emotional distress caused by mpox (ba=0.270, 95% CI 0.160-0.380), perceived benefits of mpox vaccination (ba=0.455, 95% CI 0.411-0.498), self-efficacy of mpox vaccination (ba=0.586, 95% CI 0.504-0.668), and having 1 male sex partner (ba=0.452, 95% CI 0.098-0.806), while the negative factor was perceived barriers to vaccination (ba=-0.056, 95% CI -0.090 to -0.022). The positive factors related to testing intention were perceived severity of mpox (ba=0.283, 95% CI 0.241-0.325), perceived benefits of mpox testing (ba=0.679, 95% CI 0.636-0.721), self-efficacy of mpox testing (ba=0.195, 95% CI 0.146-0.245), having 1 male sex partner (ba=0.290, 95% CI 0.070-0.510), and having in-person gatherings with MSM (ba=0.219, 95% CI 0.072-0.366), while the negative factor was emotional distress caused by mpox (ba=-0.069, 95% CI -0.137 to -0.001).

CONCLUSIONS

Among Chinese YMSM, the intention of undergoing mpox testing is optimal, while the mpox vaccination intention has room for improvement. A future national response should raise YMSM's mpox knowledge, disseminate updated information about mpox and preventive measures, improve preventive service accessibility and privacy, and provide advice on positively coping with the associated emotional distress.

Low awareness but high acceptability of pre-exposure prophylaxis for HIV among men who have sex with men and transgender persons in Delhi, India

Background: HIV pre-exposure prophylaxis (PrEP) is part of India's HIV prevention policy. We aimed to determine awareness of and willingness-to-use PrEP among men-who-have-sex-with-men (MSM) and transgender-persons (TG) in Delhi, India.Methods: A cross-sectional study was conducted at five purposively selected targeted-intervention projects in Delhi. Participants included self-identified MSM/TG aged ≥18 years, with negative/unknown HIV serostatus. A structured interview schedule, developed using formative research, was used. Primary outcomes were awareness of, and willingness-to-use PrEP. Socio-demographic and behaviour variables included age, living situation, education, anal-sex, condom-use and experiences of physical-violence. Determinants of outcome were identified in univariable logistic regression; variables associated at p < .25 were included in multivariable regression models.Results: Of 400 (224 MSM, 176 TG), mean ± SD age 25.7 ± 7.2 years, 14.5% (95% CI 11.0, 18.0) were aware of PrEP, while 63.3% (95% CI: 58.6, 68.1) reported willingness-to-use PrEP. PrEP-awareness was independently associated with formal-education (adjusted odds ratio; AOR = 1.20), professional occupation (AOR = 5.45) and condom-use (AOR = 3.07). Willingness-to-use PrEP was higher if participants had recent anal-sex (AOR = 2.29), had used condoms during anal-sex (AOR = 2.09), or recently experienced physical-violence (AOR = 3.65).Conclusions: PrEP awareness was low, but most were willing to use PrEP, implying that communication is key to PrEP awareness and uptake.

Acceptability of PrEP among MSM and transgender communities-Qualitative findings from two metropolitan cities in India

BACKGROUND

Global evidence suggests that Pre-Exposure Prophylaxis (PrEP) plays a pivotal role in reducing new HIV-infections among key populations (KP). However, the acceptability of PrEP differs across different geographical and cultural settings and among different KP typologies. Men who have sex with men (MSM) and transgender (TG) communities in India have around 15-17 times higher prevalence of human immunodeficiency virus (HIV) than the general population. The low rates of consistent condom use and poor coverage of HIV testing and treatment among the MSM and transgender communities highlight the need for alternative HIV prevention options.

METHODS

We used data from 20 in-depth interviews and 24 focused group discussions involving 143 MSM and 97 transgender individuals from the two metropolitan cities (Bengaluru and Delhi) in India to qualitatively explore their acceptability of PrEP as a HIV prevention tool. We coded data in NVivo and conducted extensive thematic content analysis.

RESULTS

Awareness and use of PrEP were minimal among the MSM and transgender communities in both cities. However, on being provided with information on PrEP, both MSM and transgender communities expressed willingness to use PrEP as an additional HIV-prevention tool, to complement inability to consistently use condoms. PrEP was also perceived as a tool that could enhance the uptake of HIV-testing and counseling services. PrEP awareness, availability, accessibility and affordability were identified as determining factors that could influence its acceptability. Challenges such as stigma and discrimination, interrupted supply of drugs and non-community-friendly drug dispensing sites were identified barriers to continuing PrEP.

CONCLUSIONS

Using qualitative data from two Indian settings, this study provides community perspectives and recommendations to stakeholders and policymakers for introduction of PrEP into programs as a prevention tool among MSM and transgender communities in India.

Pre-exposure Prophylaxis Persistence Among Greek Sexual Minority Men: Results from PrEP for Greece (P4G) Study

Nearly half the new HIV infections in Greece occur in sexual minority men, yet pre-exposure prophylaxis is not currently supported in the national HIV program. We examined factors associated with PrEP persistence among Greek SMM in PrEP for Greece, the first PrEP study in Greece. Participants (n = 100) were recruited from 2016 to 2018 through respondent-driven sampling among SMM in Athens, receiving supplies for daily PrEP at interval visits over 12-months. PrEP persistence, operationalized as Total PrEP Time, was high, 74% of participants achieving perfect persistence. Higher alcohol risk scores (OR 1.27, 95% CI 1.08-1.49) and adherence to HIV testing guidelines (OR 1.23, 95% CI 1.00-1.51) were associated with persistence. Housing impermanence (OR 0.14, 95% CI 0.04-0.48) and serostatus disclosure concerns (OR 0.77, 95% CI 0.60-0.97) were associated with limited PrEP persistence. While PrEP persistence among Greek SMM is high, socioeconomic factors and societal attitudes may challenge prevention efforts.

Game Plan-a Brief Web-Based Intervention to Improve Uptake and Use of HIV Pre-exposure Prophylaxis (PrEP) and Reduce Alcohol Use Among Gay and Bisexual Men: Content Analysis

Background

HIV pre-exposure prophylaxis (PrEP) has considerable potential for reducing incidence among high-risk groups, such as gay, bisexual, and other men who have sex with men (GBM). However, PrEP’s effectiveness is closely linked with consistent use, and a variety of individual-level barriers, including alcohol use, could impede optimal uptake and use. Web-based interventions can encourage medication adherence, HIV prevention behaviors, and responsible drinking and may help support PrEP care, particularly in resource-limited settings.

Objective

We previously developed a web application called Game Plan that was designed to encourage heavy drinking GBM to use HIV prevention methods and reduce their alcohol use and was inspired by brief motivational interventions. This paper aims to describe the web-based content we designed for integration into Game Plan to help encourage PrEP uptake and consistent use among GBM. In this paper, we also aim to describe this content and its rationale.

Methods

Similar to the original site, these components were developed iteratively, guided by a thorough user-centered design process involving consultation with subject-matter experts, usability interviews and surveys, and user experience surveys.

Results

In addition to Game Plan’s pre-existing content, the additional PrEP components provide specific, personal, and digestible feedback to users about their level of risk for HIV without PrEP and illustrate how much consistent PrEP use could reduce it; personal feedback about their risk for common sexually transmitted infections to address low-risk perceptions; content challenging common beliefs and misconceptions about PrEP to reduce stigma; content confronting familiar PrEP and alcohol beliefs; and a change planning module that allows users to select specific goals for starting and strategies for consistent PrEP use. Users can opt into a weekly 2-way SMS text messaging program that provides similar feedback over a 12-week period after using Game Plan and follows up on the goals they set.

Conclusions

Research preliminarily testing the efficacy of these components in improving PrEP outcomes, including uptake, adherence, sexually transmitted infection rates, and alcohol use, is currently ongoing. If supported, these components could provide a scalable tool that can be used in resource-limited settings in which face-to-face intervention is difficult.

Willingness to Use Pre-exposure Prophylaxis (PrEP) and Preferences Among Men Who have Sex with Men in Mumbai and Chennai, India: A Discrete Choice Experiment

Pre-exposure prophylaxis (PrEP) programs are planned for key populations in India. We examined PrEP awareness and willingness to use PrEP in order to support products and services for MSM. From December 2016 to March 2017, we conducted a survey and discrete choice experiment (DCE)-a technique to quantify the strength of participants' trade-off preferences among various product attributes-to assess willingness to use PrEP and related preferences. MSM were recruited from cruising sites and HIV prevention services in Mumbai and Chennai. DCE data were analyzed using mixed logit regression models and estimated marginal willingness-to-pay, the relative value participants' place on different PrEP attributes. Overall, 76.6% indicated willingness to use PrEP. Efficacy had the greatest effect on choice (high vs. moderate, aOR = 19.9; 95% CI 13.0-30.4), followed by dosing frequency (intermittent vs. daily regimen, aOR = 2.02; 95% CI 1.8-2.2). Participants preferred no (vs. minor) side-effects, subsidized (vs. market) price, and government (vs. private) hospitals. Findings suggest that educational and social marketing interventions should emphasize PrEP's high efficacy and minimal side effects, and programs should provide government-subsidized PrEP with choices of intermittent or daily dosing delivered by government and private hospitals/clinics in order to optimize PrEP uptake among MSM in India.

Factors Influencing Willingness to Use Human Immunodeficiency Virus Preexposure Prophylaxis Among Transgender Women in India

Purpose: High levels of human immunodeficiency virus (HIV) prevalence and inconsistent condom use among transgender women in India highlight the need for additional effective HIV prevention methods like preexposure prophylaxis (PrEP). We examined the extent of and factors influencing willingness to use PrEP among trans women in India. Methods: Between June and August 2017, we conducted a cross-sectional survey among 360 trans women recruited through community-based organizations in six cities. We assessed PrEP knowledge, condom use, attitudes toward PrEP (after providing information on PrEP), preferences in PrEP pricing and access venues, discrimination experiences, and the likelihood of using PrEP. Logistic regression analyses were conducted. Results: Participants' median age was 26 years; 50.7% had not completed high school, and 24.8% engaged in sex work. Only 17.1% reported having heard of PrEP before the survey, and 80.6% reported that they would definitely use PrEP. Trans women in sex work had 28 times higher odds of reporting willingness to use PrEP than those not in sex work (adjusted odds ratio [aOR]=28.9, 95% confidence interval [CI]=8.79-95.16, p<0.001). When compared with trans women who did not experience discrimination, the odds of reporting willingness to use PrEP was lower among trans women who had experienced discrimination from health care providers (aOR=0.25, 95% CI=0.06-0.97, p=0.04) and family members (aOR=0.08, 95% CI=0.05-0.14, p<0.001). Conclusion: Willingness to use PrEP was high among trans women, especially those in sex work, despite identified barriers (e.g., discrimination experiences). To promote PrEP uptake among at-risk trans women, the steps needed are as follows: increasing awareness about PrEP; providing easy-to-understand information on PrEP's effectiveness, side effects and interactions between PrEP and hormones; training health care providers on PrEP and cultural competency; and reducing stigmas related to PrEP use and HIV. PrEP implementation research projects to identify effective PrEP delivery strategies are urgently needed to reduce the disproportionate HIV burden among trans women in India.

Use of HIV pre-exposure prophylaxis among urban Canadian gay, bisexual and other men who have sex with men: a cross-sectional analysis of the Engage cohort study

BACKGROUND

In Canada, gay, bisexual and other men who have sex with men (GBM) are disproportionately affected by HIV. Our objective was to describe access to HIV pre-exposure prophylaxis (PrEP) and identify factors associated with not using PrEP among self-reported HIV-negative or HIV-unknown GBM.

METHODS

This was a cross-sectional analysis of the Engage study cohort. Between 2017 and 2019, sexually active GBM aged 16 years or more in Montréal, Toronto and Vancouver were recruited via respondent-driven sampling (RDS). Participation included testing for HIV and sexually transmitted and blood-borne infections, and completion of a questionnaire. We examined PrEP access using a health care services model and fit RDS-adjusted logistic regressions to determine correlates of not using PrEP among those for whom PrEP was clinically recommended and who were aware of the intervention.

RESULTS

A total of 2449 GBM were recruited, of whom 2008 were HIV-negative or HIV-unknown; 1159 (511 in Montréal, 247 in Toronto and 401 in Vancouver) met clinical recommendations for PrEP. Of the 1159, 1100 were aware of PrEP (RDS-adjusted proportion: Montréal 84.6%, Toronto 94.2%, Vancouver 92.7%), 678 had felt the need for PrEP in the previous 6 months (RDS-adjusted proportion: Montréal 39.2%, Toronto 56.1%, Vancouver 49.0%), 406 had tried to access PrEP in the previous 6 months (RDS-adjusted proportion: Montréal 20.6%, Toronto 33.2%, Vancouver 29.6%) and 319 had used PrEP in the previous 6 months (RDS-adjusted proportion: Montréal 14.5%, Toronto 21.6%, Vancouver 21.8%). Not using PrEP was associated with several factors, including not feeling at high enough risk, viewing PrEP as not completely effective, not having a primary care provider and lacking medication insurance.

INTERPRETATION

Although half of GBM met clinical recommendations for PrEP, less than a quarter of them reported use. Despite high levels of awareness, a programmatic response that addresses PrEP-related perceptions and health care system barriers is needed to scale up PrEP access among GBM in Canada.

Decrease in incidence of sexually transmitted infections symptoms in men who have sex with men enrolled in a quarterly HIV prevention and care programme in West Africa (CohMSM ANRS 12324-Expertise France)

OBJECTIVE

Although men who have sex with men (MSM) are at high risk of STI, their access to tailored healthcare services remains limited in West Africa. We assessed the change in STI symptoms incidence over time among MSM enrolled in a quarterly HIV prevention and care programme in four cities in Burkina Faso, Côte d'Ivoire, Mali and Togo.

METHODS

We performed a prospective cohort study in MSM followed up between 2015 and 2019. Men aged over 18 who reported anal sex with another man within the previous 3 months were offered quarterly syndromic diagnosis and treatment for STI, as well as HIV testing, peer-led counselling and support. Condoms and lubricants were also provided. The change in STI symptoms incidence during follow-up was investigated using a non-parametric trend test and mixed-effect Poisson regression models.

RESULTS

816 participants were followed for a total duration of 1479 person-years. 198 participants (24.3%) had at least one STI symptom during follow-up. Overall, STI symptoms incidence was 20.4 per 100 person-years (95% CI 18.4 to 22.6), ranging from 15.3 in Abidjan to 33.1 in Ouagadougou (adjusted incidence rate ratio (aIRR) 2.39, 95% CI 1.55 to 3.69, p<0.001). STI symptoms incidence was 16.8 and 23.0 per 100 person-years in HIV-positive and HIV-negative participants, respectively (aIRR 0.77, 95% CI 0.57 to 1.04, p=0.087). STI symptoms incidence decreased significantly from 29.9 per 100 person-years in the first 6 months to 8.6 at 30-35 months of follow-up (aIRR per 6-month increase 0.84, 95% CI 0.77 to 0.92, p<0.001).

CONCLUSION

STI symptoms incidence decreased over time but the overall burden of STI appeared to be very high in MSM followed up in West Africa. STI services including counselling, diagnosis and treatment should be reinforced. Laboratory tests that allow accurate diagnosis of STI are required. Strengthening STI services will be critical for controlling the HIV and STI epidemics in this vulnerable population and in the general population.

TRIAL REGISTRATION NUMBER

NCT02626286.

Awareness of and willingness to use pre-exposure prophylaxis (PrEP) among people who inject drugs and men who have sex with men in India: Results from a multi-city cross-sectional survey

Introduction

Pre-exposure prophylaxis (PrEP) is effective in reducing HIV transmission among key populations. In India, where PrEP is not currently part of the national HIV program, little is known about PrEP awareness, willingness to use PrEP, and barriers to uptake among people who inject drugs (PWID) and men who have sex with men (MSM).

Methods

We used respondent-driven sampling to accrue PWID and MSM in 22 sites from August 2016 to May 2017. Participants were asked about awareness of PrEP, willingness to use PrEP (following a brief description) and reasons why they might not be willing to use PrEP. Participants were also queried on preferences for PrEP delivery modality (oral vs. injectable). Multi-level logistic regression models were used to determine participant correlates of willingness to use PrEP. Estimates were weighted for the sampling method.

Results

A total of 10,538 PWID and 8,621 MSM who self-reported being HIV-negative were included in the analysis. Only 6.1% (95% confidence interval [CI]: 5.9, 6.3) of PWID and 8.0% of MSM (95% CI: 7.7, 8.4) were aware of PrEP. However, willingness to use PrEP was substantially higher in both groups: 52.4% of PWID and 67.6% of MSM. Participants commonly cited a perceived low risk for acquiring HIV infection, being perceived by others as being HIV-positive, and side effects as reasons why they would be unwilling to use PrEP. Among PWID, sharing needles and hazardous alcohol use were associated with increased willingness to use PrEP. Among MSM, having a main male partner and injection drug use were associated with increased willingness to use PrEP. Preference for daily oral or monthly injectable PrEP was similar among MSM (39.6%% vs. 41.7%,), while PWID were more likely to prefer oral to injectable administration routes (56.3% vs. 31.1%).

Conclusions

As India plans to roll-out of PrEP in the public sector, our multi-city survey of PWID and MSM highlights the need for key population-focused education campaigns about PrEP and self-assessment of risk.

PrEP eligibility, HIV risk perception, and willingness to use PrEP among high-risk men who have sex with men in India: A cross-sectional survey

HIV pre-exposure prophylaxis (PrEP) is not yet included in India's national AIDS program, with demonstration projects for MSM in planning stages. In order to support PrEP roll-out for MSM, we assessed: (1) associations between guideline-informed PrEP eligibility, HIV risk perception, and perceived PrEP benefits and costs, with willingness to use PrEP (WTUP); and (2) correlates of non-WTUP among PrEP-eligible MSM. Data were collected from MSM (n = 197) sampled from cruising sites in Mumbai and Chennai. More than half (58.4%) reported inconsistent condom use with male partners, 88.3% >1 male partner, and 48.6% engaging in sex work (all past month). Overall, 76.6% reported they would "definitely use" PrEP. Among 92.9% deemed PrEP-eligible, 79.2% reported WTUP. In adjusted analyses, PrEP eligibility (aOR = 5.31, 95% CI 1.11, 25.45), medium (aOR = 2.41, 95% CI 1.03, 5.63) or high (aOR = 13.08, 95% CI 1.29, 132.27) perceived HIV risk, and greater perceived benefits (aOR = 1.13, 95% CI 1.03, 1.24) were associated with higher odds of WTUP. Among PrEP-eligible MSM, non-WTUP was associated with low HIV risk perception and lower perceived benefits. Facilitating accurate risk assessment and promoting awareness of PrEP benefits and eligibility criteria may increase PrEP uptake among MSM in India.

A rapid review of pre-exposure prophylaxis for HIV in the Asia-Pacific region: recommendations for scale up and future directions

Decline in new HIV infections in the Asia-Pacific region (APAC) continues to be slow, emphasising the importance of scaling up new HIV prevention strategies, such as pre-exposure prophylaxis (PrEP). To help inform PrEP rollout in APAC, we conducted a rapid review of published literature on PubMed from 2015 to 2020, to assess feasibility, implementation strategies, cost-effectiveness, and availability of national policies and guidelines; for the latter, we also did an expanded Internet search. This review focussed on nine countries contributing >95% of new infections in this region. A total of 36 PrEP-related studies conducted among men who have sex with men, female sex workers, and transgender women were included, of which 29 were quantitative, six were qualitative and one was a mixed-method study. Most of the studies have addressed the availability and acceptability of PrEP, whereas cost-effectiveness of any approach was assessed by limited studies. Limited published information was available about national PrEP policies and guidelines; of the selected nine countries, five have adopted the recommended World Health Organization PrEP policy of which four have integrated it in their national HIV response. HIV risk perception concerns about safety, side-effects, stigma, and affordability were major challenges to PrEP acceptance. Community-based implementation has the potential to address these. Limited evidence suggested merging PrEP implementation with ongoing targeted intervention and treatment programs could be a cost-effective approach. To stem the epidemic, newer effective prevention strategies, like PrEP, should be urgently adopted within the context of combination HIV prevention approaches.

A review of HIV pre-exposure prophylaxis (PrEP) programmes by delivery models in the Asia-Pacific through the healthcare accessibility framework

INTRODUCTION

In the Asia-Pacific, pre-exposure prophylaxis (PrEP) is a newly introduced public health intervention for minimizing HIV transmission, the coverage of which has remained limited. The best delivery models and strategies for broadening access of the vulnerable communities are not fully known. This review identified PrEP programmes reported in the Asia-Pacific, which were classified by delivery models and assessed with a healthcare accessibility framework.

METHODS

We performed a literature search on PubMed and Ovid MEDLINE using relevant search terms, manual searched grey literature by visiting relevant websites, examined reference lists and contacted authors for clarification of included PrEP programmes reported through July 2019. A structured table was used for data extraction and summarizing findings in accordance with the five constructs of approachability, acceptability, availability, affordability and appropriateness grounded in the conceptual framework of Healthcare Accessibility.

RESULTS AND DISCUSSION

This literature search yielded a total of 1308 publications; 119 full texts and abstracts were screened, and 24 publications were included in the review. We identified 11 programmes implemented in seven cities/countries in the Asia-Pacific. A typology of four PrEP delivery models was delineated: (a) fee-based public service model; (b) fee-based community setting model; (c) free public service model; and (d) free community setting model. Overall, the free community setting model was most commonly adopted in the Asia-Pacific, with the strength to boost the capacity of facility and human resources, which enhanced "approachability", "availability" and "acceptability." The free public service model was characterized by components designed in improving "approachability," "availability" and "appropriateness," with attention on equity in accessing PrEP. Among free-based models, long-term affordability both to the government and PrEP users would need to be maximized to increase accessibility. Alongside the need for raising awareness, supportive environments and ensuring timely access were means for enabling the development of a sustainable PrEP service.

CONCLUSION

PrEP programmes could be classified by delivery models through the five constructs of healthcare accessibility. While the coverage of PrEP remains limited in the Asia-Pacific, an evaluation of these models could benchmark best practices, which would in turn allow effective models to be designed.

HIV pre-exposure prophylaxis (PrEP) awareness and acceptability among trans women: a review

Transgender (trans) women are disproportionally burdened by the HIV epidemic due to complex structural, psychosocial and biological factors. HIV pre-exposure prophylaxis (PrEP) is a biomedical prevention approach for people at substantial risk of acquiring HIV. This literature review assessed awareness, willingness to use, and barriers and facilitators for PrEP acceptability among trans women. A search was conducted through five databases and included studies with primary data and disaggregate results for trans women. Of 255 retrieved citations, 17 met the inclusion criteria and were included. Low to moderate knowledge about PrEP was observed among studies. However, willingness to use PrEP was predominantly high. Frequent barriers to PrEP acceptability included concerns about side effects, cost, hormone therapy, adherence, PrEP-related stigma and interaction with healthcare workers. Facilitators included perceived reduction of HIV risk, fear of HIV/AIDS and reduced dependence on partners. Findings suggest elevated interest in PrEP and highlight important barriers and facilitators that should be specifically addressed to optimize PrEP uptake and use among this highly vulnerable population.

HIV-related care for transgender people: A systematic review of studies from around the world

RATIONALE

Transgender people face unique challenges, such as structural, interpersonal, and individual vulnerabilities to chronic diseases. Stigma and prejudice may hamper their access to health care and prevent their inclusion in the labor market, as well as cause exposition to violence. Labor market exclusion contributes to engagement in survival sex work, which increases HIV infection vulnerability. HIV continuum of care combines HIV prevention (including antiretroviral pre-exposure prophylaxis (PrEP), antiretroviral post-exposure prophylaxis (PEP) and HIV testing) with linkage to care (that is, initiating, maintaining and monitoring antiretroviral therapy). Currently, many studies evaluate the access barriers and facilitators to HIV care for transgender people.

OBJECTIVE

The present systematic review aimed to provide a clear summary of the current literature on HIV-related care for transgender men, transgender women and gender diverse people.

METHOD

Inclusion criteria were peer-reviewed quantitative studies, published through April 04, 2018, concerning transgender women, transgender men and gender diverse people and HIV-related care, which was any intervention aiming to prevent, treat or alleviate the impact of HIV on these populations.

RESULTS

From 6,585 references, 62 articles were included: Three articles had results on PEP, 18 on PrEP, 29 on HIV-testing, 17 on access to health care, and 13 on adherence to treatment.

CONCLUSIONS

The present study is the first systematic review evaluating HIV-related care for transgender people. Data collection is still scarce regarding transgender men and gender diverse people. Worldwide, testing for HIV infection does not necessarily enable access to the HIV continuum of care for transgender populations or even guarantee awareness of HIV seropositivity.

An Information-Motivation-Behavioral Skills Model of PrEP Uptake

Despite documented effectiveness of pre-exposure prophylaxis (PrEP), PrEP uptake remains low among at-risk populations. The 2015 CDC report estimates that about 1.2 million people in the US have indications for PrEP. However, only 49,158 or 4% of the targeted population are currently using PrEP. Efforts to optimize uptake of PrEP may be facilitated by the development of a comprehensive theoretical framework which can be used to understand reasons for poor uptake and to develop interventions to maximize PrEP uptake and adherence. This article reviews research on correlates of PrEP uptake and presents findings organized within an Information-Motivation-Behavioral Skills (IMB) model framework. In the context of PrEP uptake, the IMB model asserts that to the extent that at-risk groups are well-informed about PrEP, motivated to act on their knowledge, and have necessary behavioral skills to seek out and initiate PrEP regimen, they will successfully overcome obstacles to initiate and adhere to PrEP. The article proposes an adaptation the IMB model for PrEP uptake, provides empirical support for the adapted IMB model extracted from related research, and discusses its application in PrEP uptake interventions.