Population-Level Effectiveness of HIV Pre-exposure Prophylaxis Among MSM and Transgender Persons With Bacterial Sexually Transmitted Infections

Perception and barriers to access Pre-exposure Prophylaxis for HIV/AIDS (PrEP) among the MSM (men who have sex with men) Brazilian Amazon: A qualitative study

Pre-exposure prophylaxis (PrEP) is an effective HIV prevention strategy that consists in the use of antiretroviral drugs by seronegative people at risk of HIV. Negative perceptions, inadequate understanding, and access barriers have been associated with decreased medication adherence. Manaus is the largest city in the Brazilian Amazon, where the incidence of HIV/AIDS is high, and the rates of adherence to the antiretroviral treatment for HIV and PrEP are low. In this qualitative study among PrEP users, mostly MSM, we explored perceptions, knowledge, and access barriers. We conducted 21 in-depth interviews with an intentionally sampled group of participants who had used PrEP at least once in their lifetime, selected through the snowball technique, between April and July 2022. A thematic analysis was conducted with a predominantly inductive approach. We highlight three relevant themes: (i) access to information about PrEP and its influences on users, (ii) access, monitoring, and barriers encountered, and (iii) facilitators for PrEP adherence and sexual behaviors. One of the negative perceptions identified in the study involves a misunderstanding of the association between PrEP users and the HIV/AIDS status. Participants revealed that some non-PrEP users suspect that individuals claiming PrEP usage are concealing an HIV-positive status to engage in unprotected sex. Lack of information by health professionals regarding HIV prevention methods poses significant barriers to PrEP access and adherence. Participants emphasized social media's crucial role in PrEP awareness. The results suggest a need to increase digital outreach regarding PrEP, decentralize PrEP services, and provide comprehensive healthcare training to improve the effectiveness of the preventive measure.

Implementation and Evaluation of a Home-Based Pre-Exposure Prophylaxis Monitoring Option: Protocol for a Randomized Controlled Trial

BACKGROUND

HIV prevention is a public health priority. Despite progress in recent years, pre-exposure prophylaxis (PrEP) use remains suboptimal especially among groups disproportionately impacted by new HIV diagnoses such as gender and sexual minorities of color. Multiple barriers including a lack of PrEP providers and challenges with attending quarterly monitoring visits contribute to low PrEP uptake and retention. Home-based PrEP (HB-PrEP) services could reduce stigma, increase convenience, expand health system capacity for PrEP care, and improve PrEP retention.

OBJECTIVE

Home Option Testing for PrEP (HOT4PrEP) is a hybrid randomized controlled trial (RCT) that aims to examine whether HB-PrEP care is acceptable to PrEP users, feasible to implement in a sexual health clinic setting, and impacts PrEP retention.

METHODS

The RCT will recruit 458 persons currently taking or soon to initiate PrEP at a sexual health clinic in Seattle, Washington, and randomize them to continue the standard of care or have the option to use HB-PrEP for 2 of 3 triannual PrEP follow-up visits. Participants in the intervention arm will be sent home kits containing gonorrhea and chlamydia swabs and Tasso devices for blood self-collection. The primary outcome is PrEP retention between groups at 20 months; secondary outcomes include user satisfaction and acceptability, feasibility, self-reported PrEP adherence, and sexually transmitted infection (STI) incidence. Interviews with PrEP users and clinic staff will elucidate barriers and facilitators of implementation.

RESULTS

The HOT4PrEP RCT began enrolling in March 2022, was on hold during the height of the US mpox epidemic, then resumed enrollment in December 2022. Of the first 100 enrollees, the median age is 34 years, and most are cisgender gay men (89/100, 89%) with at least some college education (91/100, 91%). Among the 49 participants randomized to the HB-PrEP option, 33 (67%) chose to self-collect samples at home at least once, of whom 27 (82%) successfully returned test kits for HIV and STI testing. Primary PrEP retention and qualitative analyses are ongoing.

CONCLUSIONS

Implementation of HB-PrEP into a high-volume sexual health clinic seems to be feasible and acceptable to early RCT enrollees. This strategy has the potential to address individual and systemic barriers associated with initiating and persisting on PrEP, such as increasing sexual health agency and expanding clinical capacity to serve greater numbers of PrEP users.

TRIAL REGISTRATION

ClinicalTrials.gov NCT05856942; https://clinicaltrials.gov/study/NCT05856942.

INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID)

DERR1-10.2196/56587.

Impact of HIV preexposure prophylaxis prescriptions on HIV diagnoses in New York City

BACKGROUND

HIV preexposure prophylaxis (PrEP) has proven to be efficacious and effective in preventing HIV infections, but few studies have reported its impact in the real world.

METHODS

We conducted an ecological analysis and compared the trends in HIV PrEP prescriptions with the trends in age-adjusted HIV diagnosis rates in New York City (NYC). Joinpoint regression analyses were used to identify any temporal trends in HIV diagnosis rates in NYC.

RESULTS

The number of people filling at least one PrEP prescription in NYC increased from 2551 in 2014 to 35 742 in 2022. The overall age-adjusted HIV diagnosis rate steadily decreased from 48.1 per 100 000 in 2003 to 17.1 per 100 000 in 2022. After the rollout of PrEP, accelerated decreases were detected in some subpopulations including white men [2014-2019 annual percentage change (APC): -16.6%; 95% confidence interval (CI) -22.7 to -10.0], Asian/Pacific Islander men (2016-2022 APC: -9.8%), men aged 20-29 years (2017-2020 APC: -9.4%) and 40 -49 years (2014-2020 APC: -12.2%), Latino/Hispanic people aged 40-49 years (2015-2020 APC: -13.0%), white people aged 20-29 years (2012-2022 APC: -11.4%) and 40-49 years (2014-2018 APC: -27.8%), and Asian/Pacific Islander people aged 20-29 years (2017-2022 APC: -13.0%).

CONCLUSION

With a high coverage, PrEP can have a long-term impact in reducing HIV infections in a population, but if preexisting social determinants that contribute to racial, ethnic, and gender inequities are not well addressed, the implementation of PrEP can exacerbate these inequalities.

Roll-out and effectiveness of HIV pre-exposure prophylaxis in France: An overview

CONTEXT

Oral HIV pre-exposure prophylaxis (PrEP) has been available and fully reimbursed for people at high risk of sexually acquired HIV infection in France since January 2016.

OBJECTIVE

To evaluate the roll-out of PrEP use in France and its real-life effectiveness. The main results of two previously published studies were presented at the second e-congress of the EPI-PHARE scientific interest group on pharmacoepidemiology and public decision support held in June 2022, and are reported in this article.

METHODS

Two studies were carried out using the French National Health Data System (SNDS) covering 99% of the French population. A first study aimed to evaluate the roll-out of PrEP use in France from its implementation until June 2021, globally over the entire study period, including an assessment of the impact of the coronavirus disease 2019 (COVID-19) pandemic that started in February 2020 in France. A second study using a nested case-control design was conducted in a cohort of men at high risk of HIV acquisition included between January 2016 and June 2020 to assess the effectiveness of PrEP in the real world.

RESULTS

As of 30 June 2021, a total of 42 159 people had initiated PrEP in France. Initiations increased steadily until February 2020, then slowed down sharply from the start of the COVID-19 pandemic and resumed from the first half of 2021. PrEP users were overwhelmingly men (98%), with an average age of 36 years, living in a large urban area (74%), and of whom a minority (7%) were socioeconomically disadvantaged. Throughout the study period, the level of PrEP maintenance from one semester to the next was high (80-90%). However, for 20% of PrEP initiators, no prescription renewals were recorded during the first six months, suggesting a substantial proportion of early treatment discontinuation. A minority (21%) of PrEP renewal prescriptions were made by private practitioners. Among 46 706 men at high risk of HIV infection, 256 patients identified with HIV infection were matched with 1213 controls. PrEP was used by 29% of cases and 49% of controls. Overall, PrEP effectiveness reached 60% (95% confidence interval 46% to 71%), and was increased in people with high PrEP use (93% (84% to 97%)), or after excluding periods of treatment discontinuation (86% (79% to 92%)). PrEP effectiveness was significantly reduced in people under 30 years of age (26% (-21% to 54%)) and in socioeconomically disadvantaged people (-64% (-392% to 45%)), for whom low PrEP uptake rates or high PrEP discontinuation rates were frequently observed.

CONCLUSION

PrEP roll-out has been strongly impacted by the COVID-19 pandemic in France. Although it has been substantial among men who have sex with men, additional measures are needed to expand access to PrEP to all other population groups that could benefit from it. Promoting adherence to PrEP (especially among young people and the socioeconomically disadvantaged) will be essential to ensure a higher level of PrEP effectiveness, which has been shown to be lower in real-life settings than in clinical trials.

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.

Brief Report: Previous Preexposure Prophylaxis Use Among Men Who Have Sex With Men Newly Diagnosed With HIV Infection in King County, WA

BACKGROUND

Preexposure prophylaxis (PrEP) discontinuations are common and are associated with subsequent HIV acquisition. The population-level impact of PrEP discontinuations is unknown.

METHODS

Public health staff routinely asked men who have sex with men (MSM) with newly diagnosed HIV infection about their history of PrEP use as part of partner notification interviews in King County, WA, from 2013 to 2021. We assessed trends in the proportion of MSM who ever took PrEP and described reasons for PrEP discontinuation.

RESULTS

A total of 1098 MSM were newly diagnosed with HIV during the study period; of whom, 797 (73%) were interviewed, and 722 responded to questions about their history of PrEP use. Ninety-four (13%) reported ever taking PrEP. The proportion of MSM who ever used PrEP before HIV diagnosis increased from 2.3% in 2014 to 26.6% in 2020-2021 ( P < 0.001 for trend). The median time from PrEP discontinuation to HIV diagnosis was 152 days, and median duration on PrEP was 214 days. Common reasons for stopping PrEP included self-assessment as being at low risk for HIV, side effects, and insurance issues. Nineteen men were on PrEP at the time of HIV diagnosis; mutations conferring emtricitabine/tenofovir resistance were identified in 8 (53%) of 15 men with available genotype data.

CONCLUSION

More than 25% of MSM with newly diagnosed HIV from 2020 to 2021 had ever used PrEP. More than 50% who discontinued PrEP were diagnosed <6 months after stopping. Strategies to preempt PrEP discontinuations, enhance retention, and facilitate resumption of PrEP are critical to decrease new HIV diagnoses.

Sleep Disturbance is Associated with Missing PrEP Doses Among Young Black Sexual Minority Men in The N2 study

PrEP uptake and adherence among young Black sexual minority men (YBSMM), has been sub-optimal. Multiple studies identified sleep as an important determinant of medication adherence, although it has not been examined with regard to PrEP among YBSMM. This study utilized data collected from HIV-negative cisgender YBSMM in the Neighborhoods and Networks (N2) study in Chicago using PrEP (N = 70). Sleep quality was measured using the PHQ-9 and PrEP adherence questions were adapted from Reynolds et al., 2004. Bivariate and multivariable regression analyses were used to estimate associations between sleep and missing PrEP doses, controlling for relevant demographic and behavioral factors. YBSMM who reported sleep disturbance a moderate amount of time (aOR 7.59 [1.05 to 54.57]) were more likely to miss taking PrEP because they had too many pills to take. Sleep quality is an overlooked determinant of medication adherence, and may negatively impact YBSMM's ability to consistently take PrEP.

Sexually transmitted infections incidence in young Thai men who have sex with men and transgender women using HIV pre-exposure prophylaxis

BACKGROUND

Sexually transmitted infections are a major public health issue worldwide. HIV pre-exposure prophylaxis (PrEP) use among youth may be associated with increased incidence of sexually transmitted infections (STIs).

OBJECTIVES

To measure the prevalence and incidence of STIs among young men who have sex with men (YMSM) and young transgender women (YTGW) using PrEP.

METHODS

A prospective cohort of 15- to 19-year-old YMSM and YTGW with HIV risk defined as inconsistent condom use and/or multiple sex partners were enrolled. Participants were provided daily oral tenofovir disoproxil fumarate/emtricitabine. STI screening was done at baseline and month 6 for syphilis, urine, and anal swab nucleic acid amplification testing for C. trachomatis (CT) and N. gonorrheaoe (NG).

RESULTS

From March 2018 to June 2019, 200 adolescents (147 MSM and 53 TGW) with a median (IQR) age of 18 years (17-19) were enrolled. STI prevalence was 22.5% (95% CI 16.7-28.3). STI incidence was 25.2 per 100 person-years (95% CI 14.7, 40.3). Factors associated with STI incidence were self-reported >2 sex partners in the past month (unadjusted rate ratio [uRR] 4.6, 95% CI 1.0, 20.6), and moderate PrEP adherence (uRR 7.3, 95% CI 1.6, 32.6).

CONCLUSIONS

STI incidence in YMSM and YTGW PrEP users was high at approximately one in five. Regular screening and treatment of STIs should be implemented in youth HIV prevention packages.

HIV pre-exposure prophylaxis and sexually transmitted infections: intersection and opportunity

Pre-exposure prophylaxis (PrEP) has revolutionized HIV prevention, but PrEP does not protect against other sexually transmitted infections (STIs). Rates of STIs are rising worldwide, with notably high incidences among PrEP-using men who have sex with men in high-income countries; in low-income and middle-income countries, data are sparse, but results from a limited number of studies among African women initiating and taking PrEP have shown high STI prevalence and incidence. Efforts aimed at markedly reducing HIV in populations worldwide include a major focus on increasing PrEP use, along with improving HIV testing and treatment in order to eliminate HIV transmission. Together, these efforts could augment continued expansion of the global STI epidemic, but they could alternatively create an opportunity to improve STI control, including the development of comprehensive sexual health programmes and research to develop new STI prevention strategies. The introduction of PrEP globally has been characterized by challenges and many successes, and its role as part of a range of robust strategies to reduce HIV infections is clear. Looking ahead, understanding rising rates of curable STIs and their relationship to HIV prevention, and considering the future directions for synergies in PrEP and STI prevention will be integral to improving sexual health.