HIV Infections

The goal of this observational study is to generate real-life information on the use of lenacapavir (LEN, YEZTUGO®, (YTG)) for pre-exposure prophylaxis (PrEP) across diverse clinical settings in the United States. The study will characterize how PrEP is initiated, used, and discontinued in routine clinical practice when LEN is added as PrEP option and will evaluate persistence on LEN PrEP. The primary objective of this study is to evaluate real-life persistence on LEN PrEP at Week 52 in diverse clinical settings in the United States.

The goal of this clinical trial is to learn if the Positive Peers mobile app intervention increases rates of viral suppression in young (13-34 y/o) persons with HIV. Does use of the Positive Peers app improve viral suppression among young minority persons with HIV? What user characteristics are associated with a) viral suppression, b) retention in care, and c) perceived HIV-related stigma? Participants will: * download the mobile app onto their personal smartphone * Use the mobile app as they find useful * complete online surveys at enrollment, 3 mo, 6, mo, 9 mo and 12 months.

This study will create and follow an online cohort of sexual and gender minorities in Brazil to better understand the use of HIV prevention and treatment strategies, particularly pre-exposure prophylaxis (PrEP) and antiretroviral treatment (ART). Participants will complete online questionnaires at the beginning of the study and every three months for one year to provide information about medication use and adherence, sexual behaviors, HIV prevention and testing, sexually transmitted infections, mental health, and experiences of discrimination in health services. Participants who are using PrEP or ART and agree to take part in the intervention will be randomly assigned to receive either a digital intervention or no digital intervention. The digital intervention will consist of weekly WhatsApp messages for six months, including reminders and information intended to support adherence to PrEP or ART. The main question of the study is whether weekly WhatsApp messages can improve adherence to PrEP or ART among sexual and gender minorities in Brazil. The study hypothesis is that participants who receive the digital intervention will have higher adherence to PrEP or ART than participants who do not receive the intervention.

Screen2Prevent is a study intended to improve HIV prevention and detection through implementation and evaluation of three different broad-scale HIV screening approaches a) targeted, b) universally offered opt-in, and c) universally offered opt-out in Emergency Departments (EDs) by leveraging digital health to identify and link adolescents seeking care in the ED to HIV Pre-Exposure Prophylaxis (PrEP)/Antiretroviral treatment (ART).

The goal of this clinical study is to compare how effective a long-acting injectable treatment of lenacapavir (LEN), teropavimab (TAB), and zinlirvimab (ZAB) versus (CAB) and rilpivirine (RPV) injections given every 8 weeks in adults with HIV-1 whose virus is well controlled on daily oral treatment, after 1 year (52 weeks) of the treatment. The primary objective of this study are to evaluate the efficacy of switching to the regimen of LEN, TAB, and ZAB versus switching to CAB and RPV in virologically suppressed people with HIV-1 (PWH) as determined by the proportion of participants with HIV-1 RNA ≥ 50 copies/mL at Week 52.

This study compares the efficacy, safety and tolerability of CAB ULA and RPV ULA administered with CAB long acting (LA) and RPV LA administered in adults and adolescents with HIV who are virologically suppressed on anti-retroviral therapy (ART).

The purpose of this study is to provide continued access to the study treatment for participants from previous ViiV Healthcare studies who are still benefiting from it and do not have local access after completing the parent study. This continued access will also allow further collection of safety data. Eligible participants are those who completed a ViiV Healthcare-sponsored or collaborative parent study and are currently experiencing clinical benefit. The Sponsor will periodically review the study to consider other treatment access options.

The investigator will study the origin of fungal translocation in HIV, its relationship to the mycobiome, and its relationship to lung function and inflammation. Supported by the preliminary data and published studies, this project is based on the premise that circulating BDG derived from microbial translocation stimulates inflammation and worsens lung function in PWH. Chronic obstructive pulmonary disease (COPD) is a significant public health problem with few therapies that modify disease trajectory. COPD is a leading cause of mortality in the United States associated with increased morbidity and healthcare costs. Long-acting bronchodilators and inhaled corticosteroids are mainstays of therapy that control symptoms and reduce acute exacerbation frequency, but do not have a significant impact on mortality or lung function trajectory. The National Heart, Lung, and Blood Institute's COPD National Action Plan focuses on the critical need for research to characterize COPD risk factors and disease mechanisms in order to improve the understanding of causes and progression of disease. The ultimate goal is to provide precision therapy to appropriate patient subgroups to preserve health or arrest disease progression. Microbial organisms in the gut may have a profound effect on lung disease. The role of the gut-lung axis, defined as the cross-talk between gut microbiota and the lungs, in the pathogenesis of chronic respiratory diseases is emerging as an area of interest. Perturbations of gut microbiota characterized by low microbial diversity and changes in microbiota abundance are linked to childhood asthma risk, airflow obstruction in adult asthma, and severe lung dysfunction in cystic fibrosis. Studies in animals show that both a high fiber diet that modulates gut microbiota and an abundance of beneficial bacterial strains attenuate inflammation, emphysema, and COPD development in response to cigarette smoke exposure in murine models. In humans, recent investigations show differences in the gut microbial communities between COPD patients and healthy individuals as well as shifts in the gut microbiome with acute exacerbations of COPD.

The purpose of this study is to identify 1 or more doses of parenterally administered VH4524184 that are safe, well tolerated and yield a PK drug exposure profile necessary to deliver a long-acting antiretroviral therapy for the treatment of HIV-1 infection.

The Phase Ib clinical trial is an add-on study based on combination antiretroviral therapy (cART). It adopts a multicenter, randomized, double-blind, placebo-controlled, multiple-dose design to evaluate the safety and efficacy of multiple intramuscular injections of JL18008 added to cART in HIV immunological non-responders (INRs). Based on the Phase Ia clinical data, three dose groups are planned for the Phase Ib trial: 20, 40, and 70 μg/kg of JL18008. Each group is planned to enroll 10 subjects (8 receiving active drug and 2 receiving placebo). All subjects must maintain their original cART regimen unchanged. Subjects in the active treatment groups will receive JL18008 injection in addition to cART, while those in the control group will receive placebo (JL18008 injection buffer) in addition to cART. The dosing regimen is tentatively once weekly (QW) for 4 consecutive weeks, which constitutes one treatment cycle, followed by an observation/follow-up period. The study drug will be administered by intramuscular injection.

This study will test if the medicine dasatinib can lower the hidden amount of HIV in the body, called the HIV "reservoir." It will also check if dasatinib is safe and easy to take for people living with HIV who have a suppressed viral load while on antiretroviral therapy (ART). Adults 18 years or older who have been on ART for at least 48 months and have had a suppressed HIV-1 viral load for at least 36 months may be able to join. People will be randomly assigned to take dasatinib 100 mg by mouth once a day or a look-alike substance with no drug, called a placebo, for 12 weeks. Neither participants nor researchers will know who gets which (double-blind). The study team will do regular health checks and blood tests to track safety, tolerability, the HIV reservoir, and changes in immune cells. The study lasts 36 weeks total: 12 weeks of treatment and 24 weeks of follow-up, with clinic visits and possible phone calls. Fourteen people will take part; eight will get dasatinib and six will get placebo. Dasatinib may lower the HIV reservoir, but this is not guaranteed. All medicines can cause side effects, called adverse events (AE). The study team will watch closely and provide medical support. Joining is your choice, and you can leave at any time. If you leave, the team will talk with you about next steps for your care.

This study aims to identify the risk factors that lead to the development of metabolic liver disease in people who have been newly diagnosed with HIV. The research will take place across 9 centers in Türkiye and plans to include 250 newly diagnosed individuals with HIV, alongside 161 healthy individuals without HIV as a control group. Participants will have their liver health checked when they first join the study (baseline) and then once a year for up to 5 years (at 12, 24, 36, 48, and 60 months). The main goal of these visits is to monitor their metabolic health and understand who is at risk of developing a fatty liver condition known as MASLD (Metabolic dysfunction-Associated Steatotic Liver Disease). During each visit, the research team will collect information about the participants' general health, including their height, weight, medical and family history, lifestyle habits, and sleep patterns. They will also record any medications being taken, including HIV treatments. To thoroughly check liver health, researchers will use routine blood tests (measuring things like cholesterol, blood sugar, and kidney function) and painless, non-invasive imaging tests, such as ultrasounds and FibroScans, to measure liver fat and stiffness.

This study tests a mobile application (app) designed to support sexual health and prevent human immunodeficiency virus (HIV) among young men in South Korea. Researchers are interested to learn if the app is acceptable, easy to use, and helpful for young men who have sex with men (MSM). Participants will complete a 15-minute online survey at the start of the study and another 15-minute survey 3 months later. Participants will be randomly assigned to 1 of 2 study groups for 3 months: 1. Intervention Group: Participants receive access to the full mobile app, called Bandi. The app includes health articles, quizzes, community discussion forums, a personal sexual health log, and a clinic finder. 2. Control Group: Participants receive access to a basic version of the app that includes informational articles and the clinic finder only. Researchers will compare both groups over 3 months to see if using the full app leads to higher rates of HIV testing and lower sexual risk behaviors.

This clinical study is testing a new medication, VH4524184, to see if it can effectively treat HIV-1 in adults who have never received treatment for their infection. The study is comparing two different doses of VH4524184, each taken with the medications emtricitabine and tenofovir alafenamide (FTC/TAF), to a standard HIV treatment called dolutegravir and lamivudine (DTG/3TC). The purpose of the study is to provide data on the long-term antiviral activity of the VH4524184 and provide information regarding dosing formulation for further evaluations.

This study is being done to understand how long-acting injectable cabotegravir (CAB-LA) used for HIV pre-exposure prophylaxis (PrEP) and hormonal contraceptive methods affect each other when used at the same time. Women who are already using CAB-LA or not using PrEP will choose to join one of several groups based on whether they use injectable contraceptive (IM DMPA), an etonogestrel implant, or no hormonal contraceptive. Participants will have study visits every 4 to 12 weeks for up to 12 or 24 weeks after starting a contraceptive method to collect blood samples and measure levels of CAB-LA and hormone concentrations. The study will compare these levels to see if taking CAB-LA changes hormone concentrations or if using hormonal contraception changes CAB-LA drug levels. Safety, side effects, satisfaction, and continuation of CAB-LA PrEP and contraceptive methods will also be evaluated.

The goal of this clinical trial is to test an HIV disclosure intervention that the investigators are developing focused on men living with HIV in Uganda. The main questions the investigators are trying to answer is whether the HIV disclosure intervention the investigators develop will help men who receive this intervention to disclose their HIV status to a greater extent than men who receive standard care. Participants assigned to the intervention group will likely participate in the following: * Sexual health education * Cognitive behavioral therapy strategies * Problem-solving skills building * Motivational interviewing * Developing a personalized HIV disclosure plan * Communication skills building * Role-playing disclosure strategies

VH4770359 (also known as GSK4770359) is an antiretroviral compound. This first-in-human study aims to evaluate the safety, tolerability, and pharmacokinetics (PK) of orally administered VH4770359 in healthy participants. The findings from this study will support the design of future clinical studies of VH4770359 in people living with HIV.

The goal of this hybrid (1a) Cluster Randomised Controlled Trial phase 3B trial is to evaluate the effectiveness and implementation of offering a choice of HIV Pre-Exposure Products (PrEP) through community-based sexual and reproductive health services, on PrEP uptake and retention, and population prevalence of sexually transmissible HIV amongst adolescents and young adults living in rural South Africa. Researchers will compare adding the choice of long-acting PrEP, i.e. two monthly injectable cabotegravir (CAB LA) or dapiravine vaginal ring and HIV post exposure prophylaxis packs to daily oral PrEP integrated with community-based SRH in the 20 intervention clusters with standard of care (SoC), daily oral PrEP integrated with community-based SRH in the 20 control clusters, on uptake and retention on PrEP. We hypothesise that offering a choice of long-acting or oral PrEP and PEP within the community-based delivery of SRH services will overcome the challenges and barriers to effective use of oral daily PrEP and lead to a population-level effect on uptake and retention on PrEP and thus the prevalence of sexually transmissible HIV amongst 15-30 year olds living in rural KwaZulu-Natal, South Africa.

SHAG is a text messaging-based HIV prevention program designed for cisgender sexual minority boys and men 13-20 years of age across the United States. Investigators will test it against a control group that receives messages about healthy lifestyle.

The purpose of the study is to assess the bioavailability, mass balance, pharmacokinetics, metabolism and excretion of radiolabeled (14C) VH4524184.

This is a 3-year study to test the efficacy of a text message-based intervention program. Dental patients at 4 community health centers (n= 266) will be randomized to receive either text messages (TMs) regarding HIV prevention or TMs regarding overall wellness. Prior to enrolling the 266 participants, the investigators will conduct a feasibility pilot (n=20) to test the TM delivery as well as all study procedures. For both the pilot and the randomized clinical trial (RCT), recruitment will be conducted at 4 Community Health Center dental clinics (Codman Square, East Boston (both East Boston and South End locations), Geiger Gibson, and Upham's Community Health Centers). Recruitment materials (flyers and permission to contact forms) may also be made available at other clinics within the health centers. The study will enroll English and Spanish-speaking patients who have at least one risk factor for HIV but are HIV-negative. Patients enrolled in the pilot will complete self-report surveys at baseline, 1 and 2 months. Participants enrolled in the RCT will complete self-report surveys baseline, 3, 6, and 12 months after baseline; receive and respond to TM assessments during the 6-month intervention.

This study evaluates strategies to improve access to HIV prevention through the integration of pre-exposure prophylaxis (PrEP) into existing healthcare settings, rather than limiting delivery to specialty clinics. The study addresses barriers to PrEP uptake, including limited awareness, stigma, and restricted access, and recognizes that availability alone may not ensure initiation or sustained use. The study includes two components. First, a longitudinal cohort of current PrEP users will be followed to assess changes in access, preferences, and PrEP use over time in real-world settings. Second, a dynamic decision-support toolkit will be developed and evaluated to support patients and providers in PrEP-related decision-making. The toolkit will include patient- and provider-facing components to support clinical decision-making, improve risk understanding, and facilitate integration of PrEP into routine healthcare. The toolkit will be refined and beta-tested in selected healthcare facilities in Botswana and Alabama.

The goal of this single arm pre-post study is to assess the feasibility, acceptability, and preliminary impact of the LOTUS intervention to improve HIV prevention service engagement among people who use drugs. LOTUS is a technology-delivered intervention that provides HIV prevention informational content and tips, peer social support and social networking features, a resource locator, HIV prevention monitoring and reminders (e.g., reminders for HIV/STI testing and PrEP doses), and a virtual space to have questions answered by health care professionals.

This multicenter study evaluates a full-situational awareness robotic bronchoscopy system combined with CBCT-based multimodal image fusion for diagnosing lung nodules in people living with HIV (PLWH). Lung nodules are small lesions that may be benign or cancerous. In PLWH, accurate diagnosis is especially important but challenging. In this study, participants will be assigned to one of two groups: * Experimental group: Robotic bronchoscopy with real-time full-situational awareness and CBCT image fusion; * Control group: Electromagnetic navigation-guided bronchoscopy combined with radial endobronchial ultrasound (EBUS). In both groups, rapid on-site cytologic evaluation (ROSE) will be performed to confirm tissue adequacy. For participants confirmed to have lung cancer and meeting safety criteria, an exploratory transbronchial cryoablation will be performed during the same procedure. The study aims to compare diagnostic accuracy and safety between the two approaches and to explore the feasibility of immediate cryoablation for early-stage lung cancer in PLWH.

(Effectiveness Aim 1) To test the comparative effectiveness of PreP for WINGS versus PrEP alone on primary outcomes of increasing PrEP initiation measured by self-report/medical records, recent adherence and longer-term adherence by self-report/medical records over the 6-month follow-up; and secondary outcomes of decreasing IPV, hazardous drinking, recidivism, and HIV risks. (Moderation Aim 2) To test if the effectiveness of WINGS+PrEP on study outcomes is moderated by key participant subgroups based on race/ethnicity, sexual orientation, age, education, incarceration history, IPV severity, substance use disorders (SUDs), digital access and literacy, housing stability, and medical mistrust.