Clinical Research Directory

Protecting Against Lenacapavir Misinformation With Young Women in Gauteng, South Africa ( PROTECT-L)

Adolescent girls and young women (AGYW) in South Africa remain disproportionately affected by HIV, with prevalence among 15-24-year-olds at 9.4% in 2024 despite expanded access to condoms, HIV testing, and oral PrEP. While oral PrEP is effective, its reliance on daily adherence and regular follow-up has limited impact for many young women. Lenacapavir (LEN), the first long-acting injectable PrEP administered twice yearly, offers a promising alternative that could improve persistence and protection. However, LEN's potential may be undermined by misinformation, particularly around safety and trust, which has been shown in other HIV prevention contexts to reduce uptake and demand. Proactive strategies, such as psychological inoculation, are therefore needed to prebunk misinformation and support future LEN implementation among AGYW. Primary objective: To compare changes in intentions to receive Lenacapavir following misinformation exposure in groups with and without psychological inoculation and behavioural economics boost. Secondary objectives: (1) To compare believability and persuasiveness of misinformation claims and motivational threat associated with misinformation in groups with and without psychological inoculation and behavioural economics boost. (2) To explore subgroup effects by relevant sociodemographic and behavioural factors including HIV risk, PrEP history, COVID-19 vaccine history, general vaccine hesitancy, and information avoidance. The investigators will conduct a two-arm randomized controlled trial of 2-3 inoculation messages that address emerging myths and misinformation about Lenacapavir in South Africa. Participants will be randomly assigned to a control group or an intervention arm: enhanced inoculation message with insights from behavioural economics.

Protecting Against HIV Vaccine Misinformation With Adolescent Girls and Young Women in South Africa

Adolescent girls and young women (AGYW) between the ages of 15-29 years continue to bear the brunt of Human Immunodeficiency Virus (HIV) infections in South Africa despite progress recorded in prevention and treatment programmes. The ongoing susceptibility of young women to HIV infection and the sub-optimal uptake of prevention options such as Pre-Exposure Prophylaxis (PrEP) that are highly effective creates a need for an HIV vaccine to benefit populations at substantial risk of HIV infection. However, lessons from previous vaccine studies and the recent COVID-19 vaccine have highlighted significant barriers to vaccine uptake, such as widespread misinformation and vaccine hesitancy. These challenges threaten the successful implementation of a future HIV vaccine. Building on these insights, this study will utilise psychological inoculation theory to develop and evaluate HIV vaccine messages among adolescent girls and young women. Primary objective: To compare changes in intentions to receive HIV vaccine following misinformation exposure in groups with and without psychological inoculation and behavioural economics boost. Secondary objectives: (1) To compare believability and persuasiveness of misinformation claims and motivational threat associated with misinformation in groups with and without psychological inoculation and behavioural economics boost. (2) To explore subgroup effects by relevant sociodemographic and behavioural factors including HIV risk, PrEP history, COVID-19 vaccine history, general vaccine hesitancy, and information avoidance. The investigators will conduct a two-arm randomized controlled trial of 2-3 inoculation messages that address emerging myths and misinformation about the HIV vaccine in South Africa. Participants will be randomly assigned to a control group or an intervention arm: enhanced inoculation message with insights from behavioural economics.

Vaccine Confidence and Infodemic in Southeast Asia's Nusantara Sociocultural Sphere

The goal of this clinical trial is to understand how well a culturally-specific "prebunking" video can improve vaccine information literacy and vaccine confidence among individuals in the Nusantara sociocultural sphere. The investigators hypothesize the individuals who watch the co-created "prebunking" intervention video will have improved vaccine literacy skills and vaccine confidence compared to individuals who watch a video about safe medication disposal.

Leveraging Community Health Workers to Combat COVID-19 and Mental Health Misinformation in Haiti, Malawi, and Rwanda

Partners In Health (PIH), in collaboration with Harvard Medical School, aims to develop and evaluate an SMS-based intervention for Community Health Workers (CHWs) to combat COVID-19 and mental health-related misinformation in Haiti, Rwanda, and Malawi. The study involves three aims: identifying locally relevant misinformation through a card-sorting exercise with CHWs, developing targeted messages through cognitive interviewing, and evaluating the effectiveness of SMS-based educational message dissemination via a randomized controlled trial. The evaluation will assess the impact on public health practices, knowledge and attitudes among CHWs, and knowledge and attitudes among community members.