Chernihiv, Ukraine

CASI-Plus mHealth for Ukraine's APS Program

In December 2016, the World Health Organization (WHO) recommended scale-up of assisted partner notification services (APS) as a strategy to increase HIV testing among persons living with HIV (PLWH). APS offers PLWH assistance to confidentially notify their sex and needle-sharing partners of their exposure and link them to testing and treatment. Randomized controlled trials (RCTs) have shown that APS increases HIV testing and case-finding, and is cost-effective. APS is scalable in routine practice, but typically with lower HIV case-finding than was observed in RCTs. APS outcomes are sub-optimal when recipients only name their current sex partner, or when partner notification and testing does not occur. There are an estimated 240,000 PLWH in Ukraine, of whom roughly three in four know their HIV status. While population-level HIV prevalence is 1.0%, prevalence among persons who inject drugs (PWID) and men who have sex with men (MSM) is 23% and 8%, respectively. In 2019, the Ukraine Ministry of Health began scaling APS services. Despite trainings that emphasized the need to elicit >1 partner for each index client, health workers (HW) elicited only 1.14 for sexual and needle-sharing partners per index client, on average.16 Only 5.6% of APS clients identified as MSM or PWID and 45.9% of partners with unknown status had not yet completed HIV testing after 30 days. The CASI-Plus mHealth intervention seeks to improve partner elicitation and testing, through a mHealth client engagement tool using computer-assisted self-interview (CASI). The CASI-Plus tool supports the initial APS encounter (providing information on how APS works, eliciting names of all sexual or injection partners, screening for risk of intimate partner violence [IPV], and planning for partner notification), and facilitates case management through partner testing (via repeat follow-up surveys to assess for barriers to notification, interest in provider assistance, IPV, and completion of notification). While CASI has reduced social desirability bias in surveys of sexual behavior across diverse settings, it has not yet been used in APS programs in low- or middle-income countries (LMICs). This implementation science research will provide useful evidence on whether CASI-Plus can improve partner elicitation and HIV testing in a routine APS program operating at scale, toward the ultimate goal of linkage to HIV prevention and treatment services among those at highest risk of HIV. Aim 1 (R21): Conduct formative research from health worker and client perspectives to design the CASI-Plus mHealth intervention. Approach: The investigators will complete in-depth interviews with APS clients (N=10) and focus group discussions with HWs (N=2 groups of 8 HWs) to elicit barriers to partner elicitation and testing, use this information to design the CASI-Plus tool and its integration within the APS workflow, and test the tool for technical performance, usability, and acceptability. Hypothesis: CASI-Plus will be perceived by both clients and HWs as easy to navigate, acceptable, and technically sound. Aim 2 (R21): In a RCT, assess adoption of CASI-Plus and its impact on contact elicitation. Approach: In one high-volume health facility, the investigators will randomize PLWH (N=154) to either the CASI-Plus or standard care (SC) APS workflow, and measure the use of the tool and contact index using routinely-collected data. Hypothesis: Clients will complete initial and follow-up surveys, and will report more partners when using the tool. Aim 3 (R33): In an expanded RCT, test CASI-Plus on the HIV testing index. Approach: The investigators will expand the RCT to three high-volume health facilities and test its effectiveness in improving the HIV testing index (number of partners with unknown HIV status tested per index client; primary outcome, N=888). Secondary outcomes include the percentage of index clients disclosing MSM or PWID partners, HIV case-finding index, and APS-associated adverse events. Hypothesis: The intervention will increase the HIV testing index and participation of PWID and MSM, without increasing adverse events. Aim 4 (R33): Assess appropriateness and feasibility of the CASI-Plus intervention and its impact on overall acceptability of APS services. Approach: The investigators will use exit surveys of HWs (N=36) and CASI-Plus clients (N=444) to assess appropriateness and feasibility of the intervention. Researchers will assess CASI-Plus impact on overall APS acceptability, via measures of satisfaction and perceived stigma, in an exit survey with clients in both study arms (N=888). Hypothesis: CASI-Plus will be appropriate, feasible, and improve APS acceptability. The proposed research team brings together experienced researchers, APS program specialists, and digital health specialists from the University of Washington (UW) and the Ministry of Health's Public Health Center (PHC). The project builds upon the existing national platform for APS within public-sector HIV clinics, and lays the foundation for a simple intervention to optimize APS delivery which could be evaluated for implementation outcomes and effectiveness at scale in a future cluster-randomized controlled clinical trial.

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