Study of Vitamin D and Effect on Heart Disease and Insulin Resistance
Human Immunodeficiency Virus (HIV)Vitamin D Deficiency1 moreThe purpose of this study is to evaluate how Vitamin D affects endothelial function, inflammation, lipids, insulin resistance, vitamin D levels, and parathyroid hormone (PTH).
The Effects of Spirulina Platensis on Insulin Resistance in HIV-infected Patients
Insulin ResistanceHIV/AIDSSpirulina, a widely used food supplement, improves the lipid profile and glycemic control in people living with diabetes, suggesting that it could have some effects on insulin sensitivity. Since HIV-infected patients develop metabolic abnormalities due to the virus and/or to antiretroviral (ARV) drugs, the investigators therefore proposed to evaluate the effect that spirulina can have on HIV/HAART-associated insulin resistance
Comparison of Concentration-time Course of Plasma and Intracellular Raltegravir in Healthy Volunteers...
Human Immunodeficiency VirusThe investigators hypothesize that the concentration-time profile of raltegravir is different in cells than that in plasma. Intracellular raltegravir concentrations may be higher and its half-life longer than in plasma. This may explain the efficacy of raltegravir despite variable plasma concentrations.
Medications for Chronic HIV: Education and Collaboration
HIV InfectionsAcquired Immunodeficiency Syndrome1 moreThis study will examine whether a computerized, self-administered assessment of patient medication adherence and health behaviors, plus support for adherence, improves the ability of clinicians to identify adherence problems and leads to better adherence.
Drug Interaction Study of Darunavir/Ritonavir and Lopinavir/Ritonavir on GSK2248761 PK and CYP450...
Healthy SubjectsInfection1 moreThe purpose of this study is to evaluate the effect of GSK2448761 on CYP450 metabolic probes and to evaluate the 2-way interaction between GSK2448761 and two ritonavir-boosted protease inhibitors that are commonly used in HIV-infected subjects.
Dolutegravir Renal Impairment Study
InfectionHuman Immunodeficiency VirusDolutegravir (DTG, GSK1349572) is an integrase inhibitor being developed for the treatment of human immunodeficiency virus (HIV)-1 infection by GlaxoSmithKline (GSK) on behalf of Shionogi-ViiV Healthcare LLC. DTG is metabolized primarily by uridine diphosphate glucuronyltransferase (UGT)1A1, with a minor role of cytochrome P450 (CYP)3A, and with renal elimination of unchanged drug being extremely low (< 1% of the dose). Fifty-three percent of the total oral dose is excreted unchanged in the feces but it is unknown if all or part of this is due to unabsorbed drug or some percentage of biliary excretion of the glucuronide conjugate which can be further degraded to form the parent compound in the gut lumen. The current Food and Drug Administration (FDA) draft guidance for renal impairment studies states that a pharmacokinetic (PK) study in patients with renal impairment should be conducted even for those drugs primarily metabolized or secreted in bile, because renal impairment can inhibit some pathways of hepatic and gut drug metabolism and transport. This study is planned as an open label, single-dose, pharmacokinetic study to evaluate plasma DTG pharmacokinetics following oral administration to subjects with severe renal impairment (creatinine clearance < 30 ml/min) and matched healthy controls. Results from this study are expected to enable the development of appropriate dosing recommendations in patients with renal impairment.
A Study to Investigate the Safety, Tolerability and Pharmacokinetics of Repeat Dose Administration...
InfectionHuman Immunodeficiency VirusLAI115428 is a Phase I, randomized, repeat dose escalation study to determine the safety, tolerability, and PK profile of intramuscular and subcutaneous injections of GSK1265744 in a long acting parenteral (LAP) formulation in healthy subjects. Subjects will be randomized to 3 monthly dosing cohorts and 1 quarterly dosing cohort with either intramuscular or subcutaneous dosing. In the monthly dosing cohorts subjects will receive GSK1265744 alone for 2 months and then in combination with TMC278 long acting parenteral (LA) for 2 months. For the quarterly dosing cohort, 2 quarterly intramuscular doses of GSK1265744 LAP will be given alone. Three dose levels of GSK1265744 will be evaluated partly in combination with TMC278 LA to adequately characterize the GSK1265744 LAP and TMC278 LA safety, tolerability, and PK profile. A total enrolment of approximately 40 healthy subjects is planned for this study.
HIV Prevention Intervention for Couples
Acquired Immunodeficiency SyndromeRecent studies have shown that many drug-using minority women are vulnerable to HIV infection from their husbands or other intimate male partners. The goal of this study is to develop and evaluate two new HIV counseling and testing programs designed for drug-using women at risk for HIV from a primary male partner. It is predicted that HIV counseling and testing programs administered to couples rather than to women only, and programs that focus on intimate relationships in the context of HIV risk, will result in a reduction of risky sexual and drug-related behavior among drug-using women and their primary male partners. This four-year study employs a randomized clinical trial (RCT) design to test the effectiveness of two new HIV counseling and testing programs for women drug-users in Harlem and the South Bronx in New York City.
Efficacy of Efavirenz 400mg vs. 600mg Combined With Lamivudine and Tenofovir in Treatment Naive...
HIV/AIDSMental ImpairmentThe present study will be a randomized controlled study in which 500 treatment-naive HIV patients will be randomized 1:1 to Efaviren 400mg v.s. 600mg combined with lamivudine and tenofovir. The whole cohort will be followed for two years. Efficacy and safety of each regimen will be evaluated throughout the study.
Simplification From Tenofovir Plus Lamivudine or Emtricitabine Plus Ritonavir-Boosted-Protease Inhibitor...
Human Immunodeficiency VirusA 48-week, open label, non comparative prospective trial in stable chronic human immunodeficiency virus-infected patients having achieved complete virological suppression for more than 24 weeks (human immunodeficiency virus-1 RNA <50 c/ml) switching from an antiretroviral regimen containing tenofovir and lamivudine or emtricitabine and boosted protease inhibitor to boosted atazanavir and lamivudine Study visits will take place at screening, baseline, weeks 4, 12, 24, and 48.