Clinical Research Directory

Choice-Based Support for Adults Starting or Restarting Antiretroviral Therapy in Cape Town, South Africa

Disengagement from HIV care is very common in the first year after starting or restarting antiretroviral therapy (ART). There is increasing recognition of people cycling in and out of HIV care over time people newly starting and restarting treatment after an interruption are at high risk of subsequent disengagement from care. While guidelines advocate for patient-centered models of care, patient preferences are often not considered fully in the design of interventions. Building on existing support intervention modalities, formative qualitative research and a stated preference survey, the investigators have designed a choice-based ART support intervention. The intervention offers a choice of a) in-person group support, b) low-touch WhatsApp support group, and c) individual digital support through the AI Coach chatbot. This study will explore the feasibility, acceptability and preliminary impact of choice-based ART support for adults starting and restarting ART in Cape Town, South Africa, through a randomized pilot feasibility trial. The objectives of this study are: 1. To determine the feasibility, acceptability, appropriateness and fidelity of the Zikhethele intervention components, including offering patients a choice of ART support intervention. 2. To describe the distribution of actual choices in the choice arm. 3. To describe outcomes in each pilot trial arm and explore the preliminary impact of offering a choice, compared allocation to a support intervention or standard of care, on patient empowerment and treatment outcomes. 4. To explore the hypothesised mechanisms of action and contextual moderators through in-depth interviews with participants and providers including consideration of patient empowerment, stigma and social support, and trust in provider, peers and digital tools. A total of 140 adults starting or restarting ART will be consecutively recruited and randomised to a) standard of care (n=35), b) in-person support (n=35) and c) a choice (n=70) of in-person support, WhatsApp group support, AI coach, or no additional support (standard of care). The intervention components will run for the first four months after start or restart, through to the first viral load and eligibility assessment for routine differentiated models of care. Briefly, the in-person group support will consist of monthly informal and discussion-based sessions framed around chronic medication adherence (including HIV, diabetes, and hypertension), designed to create a safe and supportive space where participants can share experiences, problem-solve, and build motivation to remain in care. The WhatsApp group support will be a virtual adaptation of the in-person model, designed to provide an accessible, low-barrier option for participants who prefer remote or flexible engagement. The AI Coach is a pilot AI chatbot (developed by Audere, PSI, HSRC, and Matchboxology, and being piloted in Gauteng and KwaZulu Natal by HE2RO at the Wits Health Consortium) inspired by the in-person Coach Mpilo model-a peer navigator case management approach in South Africa that employs men living with HIV as "coaches" to support linkage, retention, and re-engagement in care. The AI coach is available anytime via WhatsApp, and offers trusted information (through a curated large-language model), and empathetic counselling and behavioural nudges to encourage healthy habits. Individuals (aged 18 and older, living with HIV and currently attending the clinic to start ART for the first time or to restart after an interruption of 3 or more months) will be approached during their routine clinic visit by a trained research fieldworker. Eligible individuals will undergo informed consent and be enrolled. Participants will complete an interviewer administered questionnaire at enrolment and at four months. Outcome data will also be abstracted from paper and electronic medical records, as well study and intervention logs, intervention debriefings and chatbot logs. A subset of 20 participants, purposefully selected to include each intervention component, will be invited to complete an in-depth interview at 4 months. Providers (n=6), while not involved directly in this pilot implementation, will also be invited to participate in an in-depth interview to explore the potential of this intervention. This exploratory pilot study serves as a proof-of-concept for offering people living with HIV different modalities of support for engagement in care in the first four months. The study is not powered for efficacy but will provide valuable insights into feasibility (of both the trial design and intervention components) and acceptability, as well as real-world preferences and trade-offs. The investigators hypothesize that those able to choose a support intervention most appealing or most fitting to their life circumstances may have improved health empowerment which may in turn improve health outcomes.

Developing and Testing a Digital Health Tool for INterseCtional Stigma Assessment and Reduction at Multiple Levels and mUltiple DimEnsions (INCLUDE) to Improve HIV Care in ART Centers in Nepal

People living with HIV (PLWH) have poor clinical outcomes when they are excluded from care due to intersectional stigma related to HIV, mental health (MH), and other dimensions. Recent studies and reviews have highlighted three major challenges in identifying and addressing intersectional stigma: a lack of stigma assessment strategies that are multi-dimensional and can be incorporated into routine clinical care, a lack of tailored stigma-reduction activities, and a lack of implementation of multi-level interventions. These gaps make it difficult to recognize and address intersectional stigma, leading to poor HIV care outcomes globally. Digital health tools, co-designed with PLWH and healthcare workers (HCWs), have the potential to assist ART centers in addressing these challenges. Guided by the principles of human-centered design, our team has developed a digital tool with three components that can address the challenges in assessing, prioritizing, and addressing intersectional stigma in ART centers. The components include: 1) a dynamic assessment strategy that can be used during a clinic visit to collect both quantitative (i.e., ratings) and qualitative data (i.e., free text of client's perspectives) on stigma reported by PLWH; 2) a dashboard that incorporates this stigma assessment data alongside routine clinical data (i.e., existing registry of clients in the ART center) so that ART centers can directly link stigma with care engagement, and also identify relevant stigma-reduction activities; and 3) a repository of evidence-based, culturally appropriate activities that can reduce stigma at the intrapersonal-, interpersonal-, and clinic-levels. The three components of the digital intervention are theoretically grounded and are based on prior studies and consultations with local partners. The study aims to assess the acceptability and feasibility of INCLUDE among clients, HCWs, and ART center leads in four ART centers. For this aim, we will conduct a pilot trial at four ART centers to assess the acceptability and feasibility of INCLUDE. If successful, this study will provide an intervention that can be incorporated into routine clinical practice to systematically identify and address intersectional stigma to improve HIV care, and can be tested in a cluster randomized trial with ART centers in Nepal and other regions that face similar challenges.

A Trauma-Informed Intervention for the Newly HIV-Diagnosed

The current approach to HIV prevention emphasizes: (1) achieving viral suppression among HIV+ people in order to reduce HIV transmissibility, particularly for disproportionately affected groups such as Black sexual minority men (BSMM), by increasing retention in HIV care, and (2) addressing comorbidities and complications, which include mental health concerns such as trauma symptomology and severe acute stress reactivity. Despite the disproportionate impact of both HIV and traumatic stress on BSMM and the adverse effects of stress on engagement in HIV care, BSMM remain grossly underserved with respect to mental health. To address these gaps, the proposed study will develop an intervention that will: (1) provide a brief, resilience-oriented, trauma-informed intervention that combines online sessions and highly tailored text-messaging to reduce participant burden and motivate clients between sessions, (2) provide preliminary treatment for HIV+ BSMM's unaddressed mental health needs, and (3) be embedded early in the HIV continuum of care immediately after diagnosis to facilitate linkage to and retention in HIV care.