Evaluating HITSystem 2.1 to Improve Viral Suppression in Kenya

Despite progress in providing comprehensive prevention of mother-to-child transmission of HIV (PMTCT) services, significant gaps in the timely uptake and provision of guideline-adherent services and maternal retention in care remain. Such gaps create missed opportunities for preventing mother-to-child transmission and result in nearly 6,100 infants becoming infected with HIV each year in Kenya. Effective interventions that routinize the delivery of evidence-based PMTCT services and foster consistent patient engagement are essential to close the remaining gaps and eliminate mother-to-child transmission of HIV. Building off of a successful R34 grant to develop and pilot test the HITSystem 2.0, an eHealth intervention targeting PMTCT services, the overall goal of this proposal is to use a cluster randomized control design at 12 Kenyan government hospitals to evaluate a modified HITSystem 2.1 intervention. HITSystem 2.1 reflects the 2018 Kenyan PMTCT guidelines, including routine viral load monitoring and interventions to suppress maternal viral load. The investigators aim to evaluate the impact of HITSystem 2.1 to optimize the provision of guideline-adherent services and viral suppression through the antenatal, delivery, and early postpartum periods. Aim 1 of the proposed study will assess the efficacy of the HITSystem 2.1 to increase the proportion of mothers who receive complete PMTCT services (including appointment attendance, medication adherence support, viral load testing, hospital-based delivery, and infant testing per Kenyan National Guidelines) through 6 months postpartum. The investigators hypothesize that mothers receiving the HITSystem 2.1 intervention will have a significantly higher completion rate for guideline-adherence PMTCT services compared to mothers receiving standard of care PMTCT services. In Aim 1b, the investigators will evaluate HITSystem 2.1 implementation using the RE-AIM model to inform sustainable scale up. Aim 2 will assess the efficacy of HITSystem 2.1 to increase viral suppression (<1,000 copies/mL) among pregnant and postpartum women, including those who disengage from care. The investigators hypothesize that mothers at HITSystem 2.1 sites will have higher rates of viral suppression at delivery and 6 months postpartum. Aim 3 will evaluate the cost-effectiveness of the HITSystem 2.1. Driven by differences in PMTCT retention, viral suppression, and modeled estimates of pediatric HIV infections averted, the investigators hypothesize that the HITSystem 2.1 will be cost-effective, based on World Health Organization criteria. This proposal is aimed at improving the quality of PMTCT services in the health facility setting. If efficacious and cost-effective, HITSystem 2.1 holds strong promise for national dissemination.

Inclusion criteria

• Pregnant women living with HIV who present for care at one of the study hospitals by 36 weeks gestation and provide written informed consent are eligible for enrollment in the study.

Exclusion criteria

• Pregnant women living with HIV will be excluded from study participation if she has any condition (including drug abuse, alcohol abuse, or psychiatric disorder) that study or hospital staff feel precludes her from providing informed consent.
• Women who transfer care from one study site to another during their PMTCT services will be ineligible for enrollment at their new facility.