Increasing HIV Testing Among Sexual and Gender Expansive Men in Kazakhstan: A Stepped-Wedge Randomized Trial of a Community-Level Intervention.

Importance: HIV transmission in Kazakhstan has increased among men who have sex with men (MSM) and transgender and nonbinary people who have sex with men (TSM), driven by low HIV testing rates. Objective: To determine if the PRIDE in HIV Care intervention had a community effect of increasing HIV testing among MSM and TSM in Kazakhstan. Design: We employed a stepped-wedge, cluster-randomized controlled trial with MSM and TSM community members recruited from three cities in Kazakhstan: Almaty, Astana, and Shymkent. We collected serial cross-sectional data where community members completed one assessment between 21 August 2018, and 30 March 2022. Setting: We collected data from 629 MSM and TSM among the study cities. Community respondents were recruited from real-world (e.g., NGOs, bars, clubs) or virtual sites (e.g., social media, apps) where MSM and TSM in each of the three cities were known to frequent. Participants: Eligibility criteria for community respondents were: (1) ≥18 years old; (2) identifying as male at any point in life or being assigned male at birth; (3) having consensual sex with another man in the past 12 months; (4) engaging in binge drinking (i.e., ≥5 drinks in a 2 hour period), illicit use of drugs, or both in the past 90 days; and (5) residing in one of the three study cities. Intervention: The PRIDE in HIV Care intervention is a theory-driven "crowdsourcing and peer-actuated network intervention" designed to amplify community members' successes and resilience via "influencers" who can strengthen and impart benefit to their networks and community. Main outcome measures: Received an HIV test in the prior six months. Results: There was a statistically significant increase in odds of recent HIV testing for every additional month the intervention was implemented in a respondent's city (AOR=1.08, 95% CI=1.05-1.12; p<.001). Conclusions: The PRIDE in HIV Care intervention appears to be efficacious in enacting a community wide increase-i.e., promoted HIV testing among those who did not go through the intervention itself-in HIV testing among MSM and TSM. Trial Registration: This trial is registered with clinicaltrials.gov (NCT02786615). Funding: National Institute on Drug Abuse (NIDA), grant number R01DA040513.

Scaling Up HIV Self-Testing and Linkage to Care Among Women Who Exchange Sex and/or Use Drugs in Kazakhstan.

HIV testing is the point of entry for linkage to treatment and prevention and is critically important to ending the HIV epidemic. HIV self-testing (HST) is an acceptable, user-controlled tool that can address testing barriers, which is especially important for populations who need to test frequently, like women who exchange or trade sex for money or other needed resources (WES) and women who use drugs. HST is feasible and acceptable among WES, but research among WES who also use drugs is limited, particularly in places like Kazakhstan, where HIV rates remain high and where scale-up of HST and pre-exposure prophylaxis (PrEP) is in process. To develop effective programming, there is a need to develop tailored services for WES and/or use drugs that address key barriers. We discuss opportunities to increase HST and linkage to services among WES and/or use drugs in Kazakhstan, with a focus on stigma reduction.

Effectiveness of an Intervention to Improve HIV Service Delivery for People Who Inject Drugs in Kazakhstan: A Cluster Trial.

Importance: The increasing HIV incidence rates and suboptimal rates of testing, engagement, and retention in care for people who inject drugs (PWID) in Kazakhstan underscore the need for effective HIV care continuum interventions for PWID. Objective: To determine the effectiveness of the Bridge HIV care continuum intervention implemented in needle and syringe programs (NSPs) in Kazakhstan. Design, Setting, and Participants: This stepped-wedge cluster trial was conducted from February 2017 to May 2020, with implementation beginning sequentially across 3 cities (Almaty, Karaganda-Temirtau, and Shymkent) in August 2017, January 2018, and May 2019. Intervention effect sizes were estimated via population-averaged models, and hypothesis testing relied on a permutation testing approach. The primary unit of analysis was an NSP. Data analysis was performed from October 2020 to April 2022. Interventions: The intervention addresses the full HIV care continuum: identification, testing, referral to services, and linkage to HIV care. The 3 intervention components were (1) a social network strategy, a peer-driven recruitment approach for HIV testing; (2) HIV counseling, rapid testing, and referral following international and national guidelines and protocols; and (3) enhanced antiretroviral treatment and access to services. Main Outcomes and Measures: The primary outcomes were the effectiveness of implementing Bridge's enhanced service integration approach in increasing the number of PWID served at NSPs, increasing the number of PWID who are tested for HIV in NSPs, and improving linking HIV-positive PWID with HIV care. Secondary outcomes included numbers of clients registered for HIV care, initiation of antiretroviral therapy, and viral suppression. Results: Twenty-four NSPs (8 in each city) served a total of 1225 PWID (369 in Almaty, 618 in Karaganda-Temirtau, and 238 in Shymkent) at the preimplementation study step; 1015 clients (82.9%) were male, and the mean (SD) age was 36.7 (7.1) years. Compared with preimplementation study steps, during Bridge intervention implementation steps, NSPs experienced a significant increase in the number of PWID clients registered (incidence rate ratio, 2.37; 95% CI, 1.48-3.78) and the number of PWID who received rapid HIV tests (incidence rate ratio, 3.98; 95% CI, 2.30-6.90). No significant increase in referral to HIV care was observed. The study also found significant support for secondary outcomes of antiretroviral therapy initiation and the number of clients who achieved viral suppression. Conclusions and Relevance: In this stepped-wedge cluster trial, the findings suggest that implementation of the Bridge intervention was associated with significant improvement in several steps in the continuum of HIV care for PWID in Kazakhstan. Trial Registration: ClinicalTrials.gov Identifier: NCT02796027.

Improving HIV service delivery for people who inject drugs in Kazakhstan: study protocol for the Bridge stepped-wedge trial.

BACKGROUND: People who inject drugs (PWID) in Kazakhstan face many barriers to HIV testing as well as to accessing HIV care, to retention in HIV care, and to initiating and adhering to anti-retroviral treatment (ART). Needle and syringe programs (NSPs) are an opportune setting for integrated interventions to link PWID to HIV care. METHODS: This Hybrid Type II study employs a stepped-wedge design to evaluate both effectiveness and implementation outcomes of Bridge, an intervention to identify, test, and link HIV-positive PWID to HIV care. The study is conducted at 24 NSPs in three different regions of Kazakhstan, to assess outcomes on the individual, organizational, and policy levels. DISCUSSION: This trial responds to an identified need for new models of HIV service delivery for PWID through harm reduction settings. TRIAL REGISTRATION: NCT02796027 on June 10, 2016.