
Evaluation of Pharmacokinetic Interaction Between GSK3640254 and Caffeine, Metoprolol, Montelukast,...
HIV InfectionsThis is an open-label, single sequence study that is being conducted to investigate the potential drug-drug interaction (DDI) when GSK3640254 is co-administered with a cocktail of cytochrome P450 (CYP) enzymes and transporter probe substrates in healthy participants. This study will aid in understanding these interactions and resulting changes in exposure (if any) when drugs that are metabolized via these pathways are given in combination with GSK3640254. The study will consist of a Screening period and 3 sequential treatment regimens. Participants will be administered a single dose of probe substrate drugs (caffeine 200 milligram (mg), metoprolol 100 mg, montelukast 10 mg, flurbiprofen 100 mg, omeprazole 40 mg, midazolam 5 mg, digoxin 0.25 mg and pravastatin 40 mg) on Day 1. Participants will then receive GSK3640254 200 mg once daily on Days 11 to 20 followed by co-administration of probe substrate drugs with GSK3640254 on Day 21.

A Relative Bioavailability and Food-Effect Study of the Fixed Dose Combination of GSK3640254 and...
HIV InfectionsThis is a two part study to compare the relative bioavailability (BA) of 2 fixed dose combinations (FDCs) of GSK3640254/DTG with GSK3640254 and DTG administered together as single agents (Part 1) and to assess the effect of food on the pharmacokinetic (PK) of the selected FDC of GSK3640254/DTG (Part 2).

Drug-drug Interaction (DDI) Study of GSK3640254 With Darunavir/Ritonavir (DRV/RTV) and Etravirine...
HIV InfectionsThis is an open-label, single-sequence, multiple-dose, 3 cohort study to investigate the effects of DRV/RTV and/or ETR on the pharmacokinetics (PK) of GSK3640254 and the effects of GSK3640254 on the PK of DRV/RTV and/or ETR. This study will aid in understanding these interactions and resulting changes in exposure (if any) when given in combination with GSK3640254.

Effects of Crofelemer on the Gut Microbiome in Healthy Volunteers and in HIV+ Patients With Non-Infectious...
Acquired Immunodeficiency SyndromeHealthy Volunteers3 moreThis study is intended to evaluate: Any changes in the gut microbiome from baseline compared to end of study in both healthy (HIV-negative) subjects and HIV+ patients with or without chronic diarrhea, following one month of treatment with crofelemer (Mytesi), delayed release 125 mg tablets twice daily (BID) following one month of treatment. The safety and tolerability of crofelemer, (Mytesi) delayed release 125 mg tablets BID in healthy (HIV-negative) volunteers and HIV+ patients following one month of treatment.

A Prospective, Observational Study to Examine the Effects of Ageing on the Clinical Outcomes of...
HIV InfectionThis study is to investigate how HIV affects ageing process, especially in Asian populations in various organ system, including brain, kidney, liver and etc. There are some articles that describing the ageing process in PWHIV, but there has been a limited number of articles that comparing ageing process by ethnicities. And the endpoints of those limited number of articles are including more general variables like all-cause mortality, detectable viral load and days to regimen changes. There is no extensive study of ageing by function of each organ system in Asia. This proposal contains more specific observation points on function/dysfxn of each organ system, especially for brain function as an MRI sub-study. The MRI sub-study has a large portion of this proposal as analysis of the neurocognitive function in HIV ageing, which has not been extensively studied in Asia, nor it hasn't been compared to other ethnic groups. With this proposal, we can see if there are differences by ethnicities compared to POPPY/COBRA results, and even if there are no differences, we can increase the number and diversify of cohort subjects and strengthen the level of evidence of cohort study. Our study, by enrolling both younger and older HIV-positive individuals with a matched HIV-negative control group, will be in the unique position to determine the effects of ageing and HIV status on chronic HIV-infection. In addition, results from this study will be well placed to assist in informing future HIV treatment guidelines on the monitoring of chronic HIV infection in older subjects and assisting in the design of future interventional studies for the treatment of age associated co-morbidities.

Study to Evaluate Pharmacokinetics, Safety and Tolerability of Dolutegravir and Rilpivirine (JULUCA™)...
HIV InfectionsDolutegravir (DTG), a human immunodeficiency virus (HIV)-1 integrase inhibitor (INI), and Rilpivirine (RPV), a non-nucleoside HIV-1 reverse transcriptase inhibitor (NNRTI), are each approved in the United States (US), European Union, and other countries for the treatment of HIV-1 infection. JULUCA is a combination of Dolutegravir and Rilpivirine indicated for the treatment of HIV-1 infection in antiretroviral (ARV) experienced adult subjects who are switching from their current antiretroviral treatment to the 2-drug combination. Although, the pharmacokinetics (PK), safety and tolerability of DTG/RPV (50 milligram [mg]/25mg) fixed-dose combination (FDC) tablets have been extensively studied, these parameters have not been assessed exclusively in Japanese subjects. This study will evaluate the pharmacokinetics, safety and tolerability of a single dose DTG/RPV 50 mg/25 mg FDC in a healthy adult Japanese population to support a post-approval commitment for DTG/RPV 50 mg/25 mg FDC in Japan.

Exercise Therapy With Telerehabilitation in Patients Living With HIV
HIV InfectionsTo investigate the effectiveness of the Biopsychosocial Exercise Therapy Approach (BETY) approach with the Telerehabilitation in patients living with HIV (PLWH).

HIV and Changes in the Gut Microbiome After Changes in Antiretroviral Therapy (ART)
HIV InfectionsThis is a study that aims to contribute to our understanding of how antiretroviral therapy effects the gut microbiome which, if known, could inform decisions about drug choices at an individual level. Our gut health is extremely important for all aspects of our wellbeing both at the level of our body and our brain. In recent years there has been much interest and better understanding of the role of the bacteria, viruses and other microorganisms that live in the human gut (the gut microbiome). We know that disturbing the balance between the different species of bacteria in the gut can have consequences including diarrhoea, inflammatory and autoimmune conditions and has also been linked to obesity. There are big differences in the gut microbiome composition seen in people with untreated HIV infection compared with non-infected individuals. This disrupted balance does not seem to be restored when starting on antiretroviral therapy. Different classes of antiretrovirals seem to have different effects but this has been hard to establish because studies aiming to look at this has been large population studies where it can be hard to tease out cause and effect. In this study we are instead aiming to compare an individual with themselves by comparing the bacterial gut microbiome before the person switches from one class of antiretroviral treatment to another or switches the delivery method of that drug, with the bacterial gut microbiome two months after the switch. We hope that if we can understand the effects different classes and delivery methods of antiretroviral have on an individual's gut microbiome, we can take this into account when deciding on the best HIV therapy for a person. In the long term, this would lessen the negative effects of being on a life-long treatment.

HPV Infection, Sexually Transmitted Infections and Anal Dysplasia in the Transgender Population...
Human Papillomavirus InfectionHuman Immunodeficiency Virus Infection1 moreThe goal of this observational study is to estimate the prevalence of HPV infections anal and ENT level and according to HIV status in transgender (TG) population. The main question it aims to answer is: What is the prevalence of HPV lesions in transgender population (TG); What kind of high risk HPV (hrHPV) and low risk HPV (lrHPV) are detected at the genital, anal and ENT level

Screen to Prevent: Using Digital Health to Improve HIV Screening and Prevention
HIV InfectionsThe goal of this interrupted time series quasi-experimental design study is to implement universal opt- out HIV testing and linkage to HIV preventive care in 15-21 year old adolescents visiting the pediatric emergency department (ED). The main question[s] it aims to answer are: What is the uptake, reach and effectiveness of universally offered, opt-out HIV screening across pediatric EDs after implementing an adapted version of a tablet-based screening process? What is the successful linkage to comprehensive HIV pre-exposure prophylaxis (PrEP) care using a novel, digital health platform? Participants will Complete the previously developed and validated computerized sexual health screen (cSHS) containing questions regarding their personal sexual health history Have the opportunity to opt-out of clinician-ordered HIV testing Patients meeting CDC criteria for HIV PrEP will be given the opportunity to enroll in the digital health PrEP linkage platform and followed for 3 months after enrollment.