HIV/AIDS

This study aims to test a new approach to support people living with Human Immunodeficiency Virus (HIV) in Uganda. Traditional healers (TH) will be trained to provide counselling and testing for HIV, help patients start antiretroviral therapy quickly, and offer guidance on taking medications and staying in HIV care. This support will be given in addition to the regular care provided at clinics. The main goal of the study is to see if this new approach can help more people in rural areas achieve viral suppression.

Transgender youth in the United States have unique health needs but often face barriers to accessing and receiving health care services which contribute to disparate health outcomes, including high vulnerability to HIV and other sexually transmitted infections. The proposed MyPEEPS intervention for young transgender men is a novel and evidence-driven intervention using mobile technology to deliver HIV prevention information to high risk youth. The final product will be the basis for conducting a large-scale efficacy study in this population.

This study tests a 8-session cognitive behavioral approach program (herein referred to as the 1MoreStep intervention) to train out-of-care Black women living with HIV (LWH) and exposed to intimate partner violence (IPV) in the past 2 years (hereafter, BWLWHI) in: 1) cognitive and behavioral skills to access internal and external sources of strength (e.g. self-reliance, safety net); safety strategies, knowledge about Undetectable = Untransmissible (U=U) and HIV care; and reduce internalized and anticipated stigma; 2) communication skills to respond to enacted HIV and IPV stigma and enlist social support; and 3) addressing structural barriers to HIV care engagement with an HIV navigator component. The intervention is informed by the HIV-Stigma Framework and a resilient-reintegration model which views women as active participants in responding to IPV and managing life with HIV.

Aim 1: Examine preliminary efficacy of the 1MoreStep intervention on: (a) IPV safety strategies (informal and formal resources, safety planning, and placating strategies at baseline, 3-month and 6-month follow-up visits); and (b) HIV care engagement (medical record confirmed visit with an HIV care provider, antiretroviral therapy [ART] prescription, medication adherence, and viral load status during 3-month and 6-month follow-up visits).

Aim 2: Examine the acceptability and feasibility of the 1MoreStep intervention operationalized by (a) quantitative measures: session attendance and fidelity to key intervention components and (b) qualitative interviews to assess: program fit, facilitators and barriers to participation, and using 1MoreStep intervention skills.

The purpose of this clinical trial is to evaluate and test a newly developed gender-affirming intervention that addresses the dual and interconnected risks of HIV and intimate partner victimization (IPV) among transgender women (TW). The main questions it aims to answer are: (1) will the study intervention reduce HIV risk within the context of IPV and related risk factors (e.g., substance use and PTSD); (2) will STARS improve primary prevention behaviors, such as condom use, pre-exposure prophylaxis (PrEP) use, and repeat HIV testing; and (3) what are the mechanisms of change relevant to the theoretical foundations of the intervention, including gender affirmation, empowerment, and self-efficacy. The findings from this study will provide the necessary groundwork to examine the efficacy of this combined HIV-IPV intervention in a future, large-scale clinical trial.

There are several components to this research study:

First, participants will be asked to complete a series of screening interviews/questionnaires to determine eligibility, including completing a HIV test. If eligible, participants will then take part in a 2-3 hour baseline assessment consisting of both interviewer administered questionnaires as well as self-administered surveys. Participants will then be randomly assigned to one of two treatment conditions: (1) a newly developed gender affirming intervention, known as Program STARS (Supporting Trans Affirmation, relationships, and Sex) or (2) a time-matched, attention-controlled program that offers free training in relaxation and stress reduction techniques (a.k.a., the comparison group). Both interventions offer unique components and the researchers do not yet know the impact the programs may have on participants' overall well-being. Participants randomized to Project STARS, will be invited to complete a semi-structured exit interview (lasting 60-90 min.) after the completion of the program. This clinical trial has three follow-up assessments: (1) post-intervention (i.e., after the peer-counseling programs are complete); (2) at 4-months follow-up; and (3) at 6-months follow-up. The follow-up assessments are structured the same way as the baseline assessment and are estimated to take around 1-2 hours.

The total study involvement for this clinical trial is estimated to take approximately 10 to 12 hours over the course of six months.

The overall objectives of the proposed research are to develop a brief telehealth counseling intervention to provide support for people living with HIV and experiencing suicidal ideation, and to support HIV care engagement. The investigators hypothesize that a brief telehealth counseling intervention will be safe (participants in the clinical trial will not have increased risk of suicidal behavior), acceptable (high patient retention and satisfaction, high fidelity), and will demonstrate preliminary efficacy (reduced suicidal ideation, improved care engagement, improved mental well-being).

The purpose of this study is to longitudinally characterize and evaluate changes in synaptic density in the brain using novel positron-emission tomography (PET) scans; magnetic resonance imaging (MRI), and clinical laboratory markers associated with HIV-related injury in the central nervous system. This study will test hypotheses relating to the presence and mechanisms of aberrant brain structure at the synaptic level in living humans with virologically controlled HIV on antiretroviral therapy. To evaluate associations between PET imaging radiotracers [11C]UCB-J, a ligand for presynaptic vesicle protein 2A (SV2A), a vesicle membrane protein expressed in synapses, and PET [11C]PBR28 a measure of microglia function in the brain, the Yale PET center has developed an advanced approach of combining multiple distinct ligands in coordinated same-day PET imaging. Additionally, the study will evaluate the associations of this novel synaptic density marker with well-established clinical measures of neurocognitive performance and laboratory measures of blood and cerebrospinal fluid (CSF).

The goal of this study is to learn about supporting pregnant and postpartum women living with HIV with treatment adherence. The investigators will conduct a pilot study of an intervention that includes peer counseling about viral load levels and rapid delivery of viral load results. The investigators will evaluate the feasibility of the intervention, and will assess whether it improves viral suppression 6 months following the intervention, compared to historical controls.

The research team has developed an interventional group program for young men living with HIV and will be adapting it for telehealth delivery. The purpose of the study is to determine whether or not this program can help improve social connections and the health of young men in online delivery and evaluate its potential for implementation in a community setting. The study has three phases: (1) engaging a community advisory board to create and adapt the intervention for online delivery, (2) a randomized clinical trial of the online intervention, and (3) evaluation of the program for community implementation with our partner organization. Participants in the second phase of the study will meet with a study team member to discuss the research process and provide informed consent. The community organization employees will provide consent online prior to completion of a survey and indicate whether they consent to be contacted further for in-depth interviews.

This study will evaluate the impact of U=U messaging and counseling on gaps in the HIV care cascade for men, including testing uptake and ART initiation (Aim 1), achieving viral suppression and retention in care (Aim 2) in two provinces in South Africa. The U=U message communicates the compelling idea that PLHIV who take ART and have an undetectable viral load (<200 copies/mL) cannot sexually transmit HIV. Additionally, the investigators will conduct a multi-method evaluation to inform future implementation of U=U messaging interventions (Aim 3).

This study will evaluate the effects of optimized dynamic prevention and treatment packages delivered in a precision community health model on HIV incidence, as well as other health outcomes, in a community randomized trial design.

The Pilot Test (AKA Study B) will entail a pilot randomized, controlled trial (RCT) of an mHealth behavioral intervention, LetSync, with 80 couples (N=160) to assess its acceptability, feasibility, and preliminary impact on retention in care and ART adherence as measured by antiretroviral concentrations in hair. Participants in the intervention arm will use LetSync v1.0 for 6 months and provide acceptability and feasibility data. In the ensuing 2 months, the investigators will make refinements based on participants' data to produce LetSync v2.0. Then, participants in the waitlist-control arm will receive LetSync v2.0, use it for 6 months, and provide acceptability and feasibility data. The intervention arm will continue using LetSync v1.0, for a total of 14 months. Based on acceptability and feasibility data from waitlist control arm participants between T3 and T4, the investigators will develop LetSync v3.0, which will be used for efficacy testing in a full RCT trial in the future.

This study will determine the effects of pregnenolone on brain function, inflammation and depressive symptoms in people with HIV who have depression. Participants in this study will receive a pill of either pregnenolone or placebo, and can stay on their current antidepression medications. Brain imaging and behavioral assessments will be performed during the study.

A small pilot study to assess feasibility and acceptability of the PL4Y intervention.

Young adults have a disproportionately high rate of HIV infection, high rates of attrition at all stages of the HIV care continuum, an increased risk of antiretroviral therapy (ART) nonadherence and virologic failure, and a high probability of disease progression and transmission. Tracking and monitoring objective measures of ART adherence in real time is critical to strategies to support adherence and improve clinical outcomes. However, adherence monitoring often relies on self-reported and retrospective data or requires extra effort from providers to understand adherence patterns, making it difficult for providers to accurately determine how to support their patients in real time. In the proposed interventional study, the investigators aim to pilot test an automated directly observed therapy intervention paired with conditional economic incentives to improve ART adherence among youth living with HIV (YLWH) (18-29 years-old) who have an unsuppressed HIV viral load.

Aim 1: Conduct a pilot study to assess feasibility and acceptability of the use of automated directly observed therapy with conditional economic incentives (aDOT-CEI) among YLWH (aged 18-29; N= 30) at AIDS Healthcare Foundation (AHF) clinics in California and Florida. Primary outcomes will be feasibility and acceptability, assessed using predefined feasibility metrics and acceptability surveys at three months.

Aim 2: Explore experiences of YLWH and staff/providers with the aDOT-CEI intervention and implementation facilitators and barriers. The investigators will conduct in-depth qualitative interviews with a sample of YLWH from Aim 1 and staff/providers purposively selected from participating AHF clinics to explore intervention experiences, potential influences on ART adherence, individual-level and clinic-level barriers and facilitators to intervention implementation, and suggested refinements for a future efficacy trial.

The investigators hypothesize that the aDOT-CEI intervention to improve ART adherence among YLWH will have high feasibility and acceptability.

This web-based application, couples-based HIV/STI prevention intervention project will determine efficacy to reduce HIV/STI incidence via uptake of evidence-based strategies and a tailored prevention plan among male couples who are in a relationship (defined as greater than 3 months or more).

The overall purpose of this SEARCH SAPPHIRE CAB-LA (Cabotegravir Injectable Suspension) extension study is to 1) Determine if adding the option of CAB-LA as a prevention choice using a patient-centered HIV (human immunodeficiency virus) prevention delivery model increases prevention coverage compared to the standard-of-care in three ongoing randomized trials of Dynamic Choice Prevention in rural Uganda and Kenya; and, 2) Conduct a hybrid implementation study (Primary Objective Clinical and Secondary Objective Implementation) focusing on initial implementation of a patient-centered model for CAB-LA using the RE-AIM (Reach, Effectiveness, Adoption, Implementation, and Maintenance) evaluation framework among persons randomized to the intervention arms.

To achieve the end of the HIV epidemic, concerted efforts will be needed to address the HIV care continuum, including improving retention in care (RIC) and viral suppression (VS) among persons with HIV (PWH). In the U.S., less than 50% of PWH are RIC and even fewer are VS. Studies have shown that these PWH have poorer clinical outcomes and are at risk of transmitting HIV to others, hence the need for innovative solutions to improve retention in care and subsequent viral suppression. Theory-based mHealth interventions have been shown to be promising in reaching these at-risk groups and improving HIV-related outcomes. PositiveLinks is a clinic-deployed mHealth platform that includes patient and provider smartphone apps, a web portal for clinic staff and providers to manage patient cohorts, an online implementation guide, and a learning management system to train and certify clinic staff. It has theory-based features including daily queries of adherence, mood, and stress, graphical feedback for self-monitoring, secure messaging with staff, appointment reminders, anonymized peer support, information resources, and document upload capability to support insurance re-enrollment. A 12-month prospective study in poorly retained PWH found that PL increased RIC and VS, with app use related to benefit as well as improved social support and stigma. PL is a promising existing mHealth tool for PWH, yet its efficacy has not been tested in a randomized trial, nor in urban populations. The investigators will test the efficacy of PositiveLinks to improve RIC and VS among a cohort of PWH in a high HIV prevalence city of Washington, DC. Participants will be identified from the DC Cohort, a longitudinal prospective cohort of PWH receiving HIV care at 15 clinics in DC. First, the investigators will conduct formative research to assess the feasibility, acceptability and usability of PositiveLinks among this urban cohort and conduct subsequent adaptations based on these findings. The investigators will then conduct an efficacy study through a cluster randomized controlled trial at 12 DC Cohort sites among 482 PWH. Clinics will be randomized to PL or usual care. Primary outcomes will include VS, RIC, and visit constancy at 12 months. Finally, the investigators will conduct mixed methods implementation science research guided by the Consolidated Framework for Implementation Research and RE-AIM to identify site, patient, provider, and system factors that characterize best practices in program implementation. If successful, this research will lead to the development of a novel and efficacious approach to improving RIC and VS among PWH which could lead to dissemination research that will contribute to HIV epidemic control. This project is responsive to NIH priorities, National HIV/AIDS Strategy, and Ending the HIV Epidemic goals as it is cross-cutting, seeks to reduce health inequities, and to improve health outcomes to achieve sustained viral suppression in a geographic hotspot for HIV.

The overall goal of this study is to develop an mHealth intervention (Suubi-Mhealth) for use among Ugandan youth (14-17 years) with comorbid HIV and depression, taking into account their unique contextual, cultural, and developmental needs. This digital therapy intervention delivered via a mobile application, will utilize the core tenets of cognitive-behavioral therapy (CBT) found to improve depression and ART adherence.

The near-elimination of HIV transmission with antiretroviral therapy (ART) has provided the world with a clear path to end the HIV epidemic through the mass provision of ART at diagnosis, i.e. test-and-treat. Despite the substantial prevention benefits of ART, the investigators found minimal knowledge of treatment-as-prevention (TasP) in two population-based surveys recently conducted in South Africa. In addition, current public health messaging and clinical HIV counselling in South Africa do not emphasize the prevention benefits of ART.

In this formative research study the investigators will develop an app-based educational video intervention that will provide information on Undetectable = Untransmittable (U=U) that is locally-appropriate and can be integrated into routine HIV counselling. The intervention will be piloted in a clinical trial of patients in South Africa receiving HIV post-test and adherence counselling services, to determine feasibility and acceptability, impact on U=U knowledge and attitudes, impact on stigma and psychological well being, and preliminary evidence for ART uptake and adherence.

The study builds on a longstanding collaboration between Boston University and the Health Economics and Epidemiology Research Office (HE2RO) at the University of Witwatersrand in Johannesburg, South Africa. The study is highly innovative because the investigators take a novel approach - disseminating information on the prevention benefits of ART - to improve the wellbeing of people living with HIV (PLWH) and motivate early uptake of ART in South Africa.

The investigators hypothesize that disseminating treatment-as-prevention on its merits could substantially improve the wellbeing of PLWH and increase demand for ART, enabling countries to maximize the impact of test-and-treat.

A two-arm RCT will be conducted to test the efficacy of Women SHINE, a web-based trauma-informed peer navigation-social support intervention (Figure 2). A total of 360 women living with HIV/AIDS (WLHA) with a history of adulthood interpersonal violence who have been prescribed ART but are non-adherent (< 90% ART adherent in the last 4 weeks) will be enrolled in the study. WLHA will be randomized (1:1) into one of the following conditions: 1) Women SHINE intervention arm (n=180) or 2) Control arm (n=180). The Women SHINE intervention arm will receive a four-month intervention including peer navigator (PN) one-on-one sessions, phone/text-based check-ins, 7 psychoeducation weekly support group sessions (120 mins.) co-facilitated by a licensed therapist and PN, and access to a static website with resources for HIV care, interpersonal violence, trauma, mental health, and substance use. The control arm will receive one group session (60 mins.) on self-care and well-being and access to the aforementioned website with resources. Women will complete a video-based survey and mailed hair sample self-collection at baseline, 4-, 8-, and 12-months post-randomization, to evaluate improvements in ART adherence (Aim 1), emotion regulation, and PTSD symptoms (Aim 2). Investigators will examine the mediating effect of individual (retention in HIV care, coping self-efficacy, social support, ancillary support services use) and socio-structural (stigma, medical mistrust) mechanisms of change on the efficacy of Women SHINE (Aim 3).

This study will test an anti-HIV drug (ARV) for newborn babies. The study will include a minimum of 36 and up to 108 mothers living with HIV and their newborn babies from Brazil, South Africa, Thailand, and the United States. Infants will be in the study for approximately 16 weeks (four months) after they are born. Mothers will not receive study drug and will exit the study after the Entry visit.

Hybrid Type II effectiveness-implementation trial to investigate whether electronic medical and sexual history data collection with HIV risk categorization/scoring will increase pre-exposure prophylaxis (PrEP) uptake among cis-gender women attending routine well-woman gynecologic preventative visits.

The purpose of this study is to evaluate the impact of a social media campaign and community engagement activities to promote pre-exposure prophylaxis (PrEP) use among young women and to influence community norms around PrEP in South Africa. To do this, the investigative team will analyze PrEP initiation and retention data from the study's implementing partner, TB HIV Care, a non-profit organization providing PrEP to marginalized young women in South Africa. The effect of the social media campaign and community engagement will be tested using a short duration cluster randomized trial (CRT).

The overall objectives of this proposal are to support positive coping strategies that bolster mental health and lead to improved HIV outcomes among Young People Living with HIV (YPLWH). The central hypothesis is that SYV (Sauti ya Vijana, The Voice of Youth) will be effective to improve antiretroviral therapy (ART) adherence and virologic suppression in YPLWH in Tanzania. The rationale for this project is that by targeting mental health, which is strongly associated with medication adherence, that this will effectively improve adherence and thereby HIV viral suppression. The central hypothesis will be tested in three aims in a hybrid type-1 effectiveness-implementation trial.

The study will test four economic empowerment intervention components to identify the combination that best enhance viral suppression.

The study design is a 2-to-the 4 factorial experiment. The 2 represents the level of each component:0 (receive) or (don't receive) four components: 1) Financial Literacy Training (FLT); 2) Incentivized Matched Youth Savings Accounts (YSA) with income-generating activities (IGAs); 3) A manualized intervention for ART adherence and stigma reduction (Suubi Cartoon); and 4) Engagement with HIV treatment-experienced role models who share their lived experiences of HIV. Guided by the MOST framework, the study will test each of the four components' performance and their combinations on the primary outcome, viral suppression. Resulting in 16 unique conditions representing all possible combinations of the 4 components. The study will randomize at the level of health clinics (N=48). Clinics will be randomized to provide one of the 16 conditions, with 12 ALHIV (aged 11-17 years) enrolled per clinic, yielding main effects and interaction effects for the 4 components on sustained viral suppression. Sustained viral suppression is defined as an undetectable viral load on all 12-, 24- and 36-month follow-up assessments.

The purpose of this randomized controlled trial is to understand how a cognitive-behavioral treatment (a form of psychological treatment) for depression changes the gut microbiome (micro-organisms that regulate the health of the gut), immune system, and the brain functioning in people living with HIV.

The goal of the study is to evaluate Malkia Klabu ("Queen Club") in Tanzania, a loyalty program intervention that creates adolescent girls and young women (AGYW)-friendly drug shops where AGYW can access HIV prevention services and contraception.

This protocol describes a 2-arm cluster, randomized controlled trial designed to test the effectiveness of a conditional cash transfer on viral suppression at 6 months among people living with HIV infection (PLHIV) in Tanzania who have disengaged from HIV care. Randomization will take place at the clinic level (HIV primary care clinics). The comparison group receives standard of care standard of care HIV tracing services according to Tanzania's National Guidelines for the Management of HIV and the Ministry of Health to locate potential participants, including home based care (HBC) tracing of PLHIV who have disengaged from primary care, the provision of counseling to return to HIV care, and the offer to schedule an HIV primary care appointment on the spot. Eligible adult PLHIV disengaged from HIV care and living in an intervention facility catchment area will receive the same standard of care HIV tracing and clinical services as control participants, plus the opportunity to receive a one-time cash transfer incentive, conditional upon confirmed completion of a clinical visit if within 90 days of study enrollment. The primary endpoint is viral suppression (<1000 copies/ml) at 6 months after study enrollment.

This study plans to adapt and examine the acceptability and feasibility of an evidence-based PTSD treatment that has reduced other HIV transmission behavior (e.g., sexual risk), Cognitive Processing Therapy (CPT), at an HIV clinic as a strategy to improve HIV outcomes in this population.

The overall goal of this pilot randomized-controlled trial (RCT) is to pilot MASI (MAsakhane Siphucule Impilo Yethu; Xhosa for "Let's empower each other and improve our health"), an ART adherence-supporting smartphone app with 50 adolescents and young adults living with HIV to assess its feasibility and acceptability and to explore preliminary effects on ART adherence and social support.

Poor engagement in care contributes to HIV- and TB-related morbidity and mortality in South Africa (SA). Community health workers (CHWs) are frontline lay health workers who work to re-engage patients who are lost to follow-up (LTFU) in HIV/TB care. Patients with depression and substance use (SU) have a greater likelihood of being LTFU in HIV/TB care, and there is evidence that CHWs may exhibit stigma towards these patients. When CHWs have negative attitudes towards these patients, on average they spend less time with these patients, are less likely to implement evidence-based practices, and deliver less patient-centered care. Therefore, this purpose of this study is to examine the implementation and preliminary effectiveness of a brief training ("Siyakhana"). The purpose of this training is to provide CHWs with psychoeducation, skills, and support around working with HIV/TB patients with depression/SU. The investigators will assess the training's implementation and changes in CHWs' stigma towards HIV/TB patients with depression/SU.

This 5-year project will test an mobile health approach to improve HIV self-testing (HST) and linkage to HIV-related care among high-risk men in China. HIV-negative men who have sex with men (MSM) will be randomly assigned to an intervention group: access to WeTest-WeLink (a mobile application-based HIV testing health promotion and risk reduction program), or a control group. Participant HST and sexual risk behaviors will be evaluated at baseline and at 6, 12, and 18 months post-baseline.

It is critical to evaluate strategies that leverage women's engagement in antenatal care to increase male partner testing while alleviating the burden on pregnant women to encourage their male partners to HIV test. A peer-delivered status-neutral approach to male partners of pregnant women may be an innovative strategy to overcome barriers to men's reluctance to test for HIV and initiate HIV prevention or treatment services. For pregnant women living with HIV, partner testing and disclosure could facilitate women's continuation of ART post-partum, and for HIV-negative women at risk of HIV acquisition, this could facilitate women's initiation of PrEP during pregnancy. Thus, multiple public health goals could be achieved through increasing the proportion of men who know their HIV status.

The proposed research will develop a culturally appropriate pharmacy PrEP delivery model for black men who have sex with men (BMSM) who live in high poverty, racial minority neighborhoods. Increasing access to PrEP through pharmacies has the potential to increase PrEP uptake among BMSM thereby reducing HIV incidence and racial inequities in HIV.

This quasi-experimental feasibility study recruit n=40 participants from each of two public antenatal clinics in Johannesburg, South Africa. Using the Bowen et al. approach, key feasibility study questions will be those around acceptability, implementation, and promising effects on intermediate variable. While this pilot trial is not powered to determine efficacy, it can help establish whether intervention targets the appropriate intermediate mechanisms (i.e. primary endpoints of IPV exposure and depressive symptoms) and moves intended outcomes in the right direction (i.e. towards better adherence as measured by self-reported adherence).

This proposal seeks to adapt an existing peer navigation protocol (by adding coping skills and using telehealth) to be feasible, acceptable, and capable of supporting both PrEP uptake and P-E adherence for YBMSM ages 15-24.

M-Suubi, a three arm cluster randomized study will examine the effects and cost-effectiveness of a multi-level intervention on HIV viral suppression among 840 adolescents living with HIV (ALHIV) enrolled in 42 secondary schools with a boarding section. The investigators will test the effects of a group-based HIV stigma reduction intervention for educators (GED-HIVSR), over and above the effects of multiple family groups with HIV stigma reduction combined with family economic empowerment (MFG-HIVSR plus FEE), relative to Bolstered Standard of Care (BSOC). ALHIV will be randomized at the school level to one of three study arms

The investigators will implement a 24-month fractional factorial design study (Aim 1). The investigators will recruit 510 patients initiating antiretroviral therapy (ART) at three City of Cape Town ART clinics. Each patient will have adherence monitored using the Wisepill® electronic adherence monitoring device (EAM). After eligibility has been confirmed, each participant will be randomized to one of 16 experimental conditions. Each condition includes a unique combination of five adherence intervention components. Three of these components focus on identifying individuals with poor adherence, with increasing degrees of sophistication, with immediate linkage to adherence support. Two components focus on supporting good adherence. They both supplement the existing adherence support program delivered at the study clinics operated by City of Cape Town (standard of care component). Based on Self-Determination Theory, the investigators postulate these intervention components will: 1) enhance feelings of autonomy support, social support, and knowledge; 2) improve motivation and self-competence; and 3) increase ART retention, adherence, and viral suppression. A subset of the participants, as well as clinic staff, will be invited to in-depth interviews to explore mediating factors (Aim 1) and the implementation process (Aim 2); and the data collected in Aims 1 and 2 will be used to explore cost effectiveness (Aim 3).

This study will consist of a randomized controlled trial of a motivational interviewing intervention for adolescents with diagnosed sexually transmitted infections (STIs). The sessions will provide HIV/STI prevention education, use motivational interviewing (MI) to enhance goal setting, and providing skill building and referral to evidence based STI and HIV prevention strategies Pre-Exposure Prophylaxis (PrEP), condom use, and partner notification.

Few young women at risk of HIV infection are initiating pre-exposure prophylaxis (PrEP) for HIV prevention in Kenya, thus we propose refining and testing a new model to increase PrEP initiation among young women at high HIV risk that has never been explored: peer PrEP referral + HIV self-test (HIVST) delivery. We conducted formative research to design of a model that is acceptable to young women and feasible to implement in Kenya. In this study, we will refine this model where young (≥16 to 24 years) female PrEP users refer their peers to PrEP and deliver HIVSTs in a pilot study and then test the refined model in a hybrid effectiveness-implementation trial. We hypothesize that relative to informal word-of-month peer PrEP referral (currently ongoing in Kenya), formalized peer PrEP referral + HIVST delivery will increase PrEP adoption (i.e., initiation, retention, and adherence) among peers, and be low cost and have high fidelity in Kenya.

The goal of this study is to develop and pilot test technology-based interventions to promote Pre-exposure Prophylaxis (PrEP) uptake and adherence among Thai young men who have sex with men (YMSM).

Black women have a significantly higher risk of acquiring HIV compared to their non-Black counterparts.

The purpose of this study is to refine and test a mobile HIV Prevention and Reproductive Health app developed specifically for Black women.

IMPAACT 2028 is an observational prospective study to characterize a cohort of early treated children who may participate in future research related to HIV remission or cure. Up to approximately 250 participants will be in the study for approximately seven years. No intervention is provided in the study.

Investigators are adapting the LIFT and REFLECT interventions for older adults living with HIV who have been exposed to childhood sexual abuse.

The objective of this study is to develop an effective peer-driven intervention (PDI) approach and assess its feasibility and efficacy on pre-exposure prophylaxis (PrEP) uptake among men who have sex with men.

This study tests strategies for improving PrEP implementation in maternal and child health clinics using an interrupted time series.

Young Thai men who have sex with men (YMSM) are at high risk for HIV. However, the Thailand National HIV Strategy does not adequately cover HIV prevention for YMSM using specific methods relevant to them, and instead uses a one-size-fits all approach. Partnering with the Thailand Ministry of Public Health (MOPH), the proposed study seeks to finalize, implement and evaluate a multicomponent, multi-level, community mobilization, combination intervention (HUG-M+) to address the entire Continuum of Prevention and Care. The investigators propose to test the efficacy of this approach by conducting research in two Northeastern Thai cities, one randomized to the intervention condition, which will receive HUG-M+ and the other to the control condition, where standard of care will be provided. If HUG-M+ is found to be efficacious, it might be scaled up, with the support of the MOPH, to other regions in Thailand, elsewhere in Asia and the US.

The study is a prospective cohort of young MSM who are followed for 2 years either in-person at the PRISM Health Research Clinic and/or virtually with telehealth study visits. Follow-up visits occur as frequently as every 3 months, or as appropriate to clinical needs of HIV PrEP or STI PEP. The investigators will enroll men who may decide to start or stop PrEP, change from daily oral PrEP to on-demand oral PrEP or from on-demand oral PrEP to daily PrEP, to start or stop STI PEP at any point in the study period, or injectable PrEP as an alternative to daily oral PrEP or on-demand oral PrEP. All men will be provided with the study's mobile smart phone app to support early identification of risks for PrEP discontinuation, to provide information about STI PEP and document usage patterns of on-demand oral PrEP and STI PEP, and to support easy linkage to support services for PrEP counseling and addressing concerns or questions about STI PEP and injectable PrEP.

The investigators propose A Sequential Multiple Assignment Randomized Trial of scalable interventions for ART delivery in South Africa- the SMART ART study-a randomized study to test adaptive ART delivery for persons with detectable viral load and/or not engaged in care.The types of differentiated service delivery (DSD) that will be examined in this study are incentives, community-based ART, and home delivery. The study plans to enroll up to 900 participants-people living with HIV and who are eligible for ART and living in KwaZulu-Natal, South Africa. The study aims to maximize the proportion of ART eligible persons living with HIV who achieve viral suppression at 18 months. The study will also evaluate the preferences of clients and providers for differentiated service delivery, and evaluate the cost effectiveness of adaptive HIV treatment for those who are not engaged in care.

Having health workers assist HIV-infected persons with the recruitment and testing of their sexual contacts and biological children is an effective and efficient way of identifying additional HIV-infected persons in need of HIV treatment and HIV-uninfected persons in need of HIV prevention. However, in Malawi, a country with a generalized HIV epidemic, health workers lack the counseling and coordination skills to routinely assist their HIV-infected clients with these services. This study will determine how to help health workers to effectively and efficiently provide these services to their patients through a set of digital capacity-building tools.

Investigators will develop and pilot test a culturally tailored, trauma-informed smartphone app, called LinkPositively, for Black WLHA affected by interpersonal violence. Core components of LinkPositively include: a) Virtual Peer Navigation that includes phone and text check-ins and 4 weekly one-on-one video sessions to build skills to cope with barriers and navigate care; b) Social Networking platform to receive peer support; c) Educational and Self-care database with healthy living and self-care tips; d) GPS-enabled Resource Locator for HIV care and ancillary support service agencies; and e) ART self-monitoring and reminder system. The study will be conducted in 2 phases with corresponding aims. In Phase 1 (Aim 1), 4 focus groups with Black WLHA with experiences of interpersonal violence, one focus group with peer navigators, and 4-6 key informant interviews with providers will be conducted to determine which app features, content, and functions are most likely to support downloading, initiating use, and sustaining engagement over time. Aim 1 will culminate in usability testing by Black WLHA affected by interpersonal violence (n=8), to finalize intervention components and procedures. In Phase 2 (Aim 2), investigators will pilot test LinkPositively to assess feasibility and acceptability and determine preliminary effects of the intervention on HIV care outcomes (i.e., retention in care, ART adherence, viral suppression) and mechanism of change variables (i.e., social support, self-efficacy). Through a randomized control trial (RCT), participants will be randomly assigned to either the intervention arm (n=40) or control arm (Ryan White standard of care, n=40), with follow-up at 3- and 6- months. This study will benefit the advancement of HIV prevention science by harnessing technology to promote engagement in HIV care, while improving social support through peers and social networking-all under the auspices of being trauma-informed for Black WLHA with experiences of interpersonal violence.

The purpose of this study is to evaluate the pharmacokinetic (PK) properties of antiretroviral (ARV) and anti-tuberculosis (TB) drugs administered during pregnancy and postpartum.

This a prospective, open-label implementation project to catalyze integration of HIV prevention and PrEP care services for adolescent girls and young women in family planning clinics in Kenya.

ImpACT+ (Improving AIDS Care after Trauma+), is an individual-level coping intervention to address traumatic stress and HIV care engagement among South African women with sexual trauma histories. We propose a full-scale randomized controlled trial to examine the effect of ImpACT+ on clinical outcomes in the period after ART initiation and to understand mental health and behavioral mechanisms through which viral suppression can be achieved. ImpACT+ will target women who are initiating ART in order to take advantage of a window of opportunity in HIV care and maximize care engagement. The aims are to test the effectiveness of ImpACT+ and explore its potential for implementation.

Determine if depression, which persists after depression treatment at 26 weeks, is associated with increased innate inflammation in a prospective cohort of HIV-infected Ugandans receiving SSRIs in which group psychotherapy is initiated.

The overall aim of this program of research is to test a newly developed intervention, Acceptance-Based Behavior Therapy (ABBT), to improve HIV patients' commitment to medical care.

The purpose of the proposed project is to establish the efficacy of ABBT and examine its mechanisms of action. To achieve the specific aims, the investigators will conduct a randomized clinical trial (n = 270), with two treatment arms: ABBT vs. an attention-matched HIV education control condition.

The goal of this project is to rigorously evaluate the efficacy of HIV Infant Tracking System 2.1 (HITSystem, an eHealth intervention that uses short message service (SMS) texts to patients and algorithm-driven electronic alerts for providers) to increase retention in guideline-adherent prevention of mother-to-child transmission of HIV services (PMTCT) and to increase viral suppression and appropriate clinical action through the extended period of 6 months postpartum, compared to standard of care PMTCT services in a matched, cluster randomized controlled trial.

The purpose of this study is to test how different types of interventions may affect how someone takes their pre-exposure prophylaxis (PrEP) medication.

The proposed research will conduct the first dose-determination trial to find the optimal number of behavioral counseling sessions (dose) needed to achieve and sustain optimal HIV treatment adherence. The results of this study will determine how much intervention is needed for whom and at what cost to guide health policy and implementation of behavioral interventions designed to improve durable viral suppression.

B-HAPPY is an implementation project to study the process by which pre-exposure prophylaxis (PrEP) is introduced and integrated into a specific international health system facing high rates of HIV incidence among men who have sex with men. The study will use a stepped wedge design to compare implementation outcomes across eight municipalities in Yunnan, China.

The investigators propose to determine the efficacy of "My Personal Health Guide," a theory-based innovative talking relational human Avatar mobile phone application to engage HIV-positive AAMSM in adherence and retention in care. Providing an empathetic talking Avatar source of HIV-related information, motivation, and behavioral skills that is as private and convenient as their own mobile phone might produce a high impact by overcoming barriers to HIV adherence and retention in care such as stigma and health literacy.

Despite treatment with antiretroviral therapy, women living with HIV continue to experience cognitive impairment. Psychological risk factors, including stress, impair cognition more in HIV-infected women than HIV-uninfected women. This study plans to examine a novel intervention for cognitive dysfunction that targets the mechanisms by which stress negatively affects cognitive functioning.

This is a prospective cohort study designed to define the impact of HIV infection and antiretroviral therapy (ART) on young adults with perinatal HIV infection as they transition to adulthood.

This is a prospective cohort study designed to define the impact of HIV infection and antiretroviral therapy (ART) on young adults with perinatal HIV infection (YAPHIV) as they transition into adulthood. A group of uninfected young adults from a similar sociodemographic background and age distribution will be enrolled for comparison.