Conceptualising implementation strategies in HIV research

Moving toward equity: fostering transdisciplinary research between the social and behavioral sciences and implementation science to end the HIV epidemic

PURPOSE OF REVIEW

Since the beginning of the HIV epidemic, social and behavioral scientists have developed interventions to stem the spread of the virus. The dissemination of these interventions has traditionally been a lengthy process; however, implementation science (IS) offers a route toward hastening delivery of effective interventions. A transdisciplinary approach, wherein IS informs and is informed by social and behavioral sciences (SBS) as well as community participation, offers a strategy for more efficiently moving toward health equity and ending the HIV epidemic.

RECENT FINDINGS

There has been considerable growth in HIV research utilizing IS theories, methods and frameworks. Many of these studies have been multi or interdisciplinary in nature, demonstrating the ways that IS and SBS can strengthen one another. We also find areas for continued progress toward transdisciplinarity.

SUMMARY

We review literature from 2020 to 2021, exploring the ways IS and SBS have been used in tandem to develop, evaluate and disseminate HIV interventions. We highlight the interplay between disciplines and make a case for moving toward transdisciplinarity, which would yield new, integrated frameworks that can improve prevention and treatment efforts, moving us closer to achieving health equity.

Protocol for a randomised feasibility study of Point-Of-care HIV viral load testing to Enhance Re-suppression in South Africa: the POwER study

INTRODUCTION

Access to HIV viral load testing remains difficult for many people on antiretroviral therapy (ART) in low-income and middle-income countries. Weak laboratory and clinic systems often delay the detection and management of viraemia, which can lead to morbidity, drug resistance and HIV transmission. Point-of-care testing could overcome these challenges. We aim to assess whether it is feasible to conduct a randomised trial of point-of-care viral load testing to manage viraemia.

METHODS AND ANALYSIS

We will conduct an open-label, single-site, individually randomised, feasibility study of Point-Of-care HIV viral load testing to Enhance Re-suppression, in Durban, South Africa. We will enrol approximately 100 people living with HIV who are aged ≥18 years, receiving first-line ART but with recent viraemia ≥1000 copies/mL, and randomise them 1:1 to receive point-of-care viral load or standard laboratory viral load monitoring, after 12 weeks. All participants will continue to receive care from public sector healthcare workers following South African HIV management guidelines. Participants with persistent viraemia ≥1000 copies/mL will be considered for switching to second-line ART. We will compare the proportion in each study arm who achieve the primary outcome of viral suppression <50 copies/mL at 24 weeks after enrolment. Additional outcomes include proportions retained in the study, proportions with HIV drug resistance, time to viral load results and time to switching to second-line ART. We will assess implementation of point-of-care viral load testing using process evaluation data, and through interviews and focus groups with healthcare workers.

ETHICS AND DISSEMINATION

University of Oxford Tropical Research Ethics Committee and the Biomedical Research Ethics Committee of the University of KwaZulu-Natal have approved the study. We will present results to stakeholders, and through conferences and open-access, peer-reviewed journals.

TRIAL REGISTRATION NUMBER

PACTR202001785886049.