View clinical trials related to HIV Infections.
Filter by:This study is to evaluate the safety and tolerability of cobicistat-boosted darunavir plus two fully active nucleoside analogue reverse transcriptase inhibitors in HIV 1 infected, antiretroviral treatment-naive and treatment-experienced adults with no darunavir (DRV) resistance-associated mutations. After the Week 48 Visit, participants will be given the option to participate in an extension period to receive cobicistat and attend visits every 12 weeks until it becomes commercially available, or until Gilead Sciences elects to terminate development of cobicistat.
HIV progression is closely associated with chronic immune activation driven by leakage of bacterial products from a damaged gut, the investigators largest immunological organ. Notably, the degree of immune activation has been suggested to be a better predictor of disease progression than plasma viral load, and markers of immune activation and gut damage have been identified as therapeutic targets per se. The major damage by HIV to the immune system is an initial massacre of gut mucosal CD4+ Th17 cells. Interestingly, a normal gut flora has been shown to induce the maturation of Th17 cells in the small intestine mucosa. Preliminary reports have shown that the gut flora is altered in HIV-1 infection compared to controls. In this project, the investigators will characterize microbial composition of gut flora in chronic HIV infection with ultradeep sequencing. Gut flora composition will be related to clinical data as well as quantitative data of circulating microbial products and activation markers. Second, in a randomized clinical trial (RCT) the effect of probiotic lactobacilli on HIV pathogenesis and progression will be tested. This Gram-positive strain is clinically tested and is able to colonize the gut.
To evaluate the efficacy of the adapted program a randomized controlled trial enrolling 620 eligible African American men who have sex with men (MSM) will be conducted. Men in the treatment condition will be compared to men receiving the control condition comprised of standard of care counseling from the clinic plus a free bag of condoms and water-based lubricants. This two-arm trial will test four hypotheses: Aim: To test the efficacy of a brief, clinic-based and theory-guided, intervention designed to reduce STD incidence and risk of HIV acquisition/transmission among young African American men (15-29 years old) having sex with men and presenting for STD testing. H1. Men randomized to receive the intervention will have a lower incidence rate of laboratory-confirmed STDs at each of three follow-up assessments compared to those receiving the control condition. H2. Men randomized to receive the intervention will report significantly fewer acts of unprotected penetrative sex (penile-vaginal or penile-anal) between follow-up assessments compared to those receiving the control condition. H3. Men randomized to receive the intervention will report having significantly fewer unprotected penetrative sex partners (for penile-vaginal or penile-anal sex) between follow-up assessments compared to those receiving the control condition. H4. Men randomized to receive the intervention will report having significantly fewer negative experiences with condom use between follow-up assessments compared to those receiving the control condition. H5. Men randomized to receive the intervention will demonstrate significantly greater improvement in condom application skills, throughout the 12-month study, compared to those receiving the control condition.
The purpose of this study is to evaluate the safety and immune response to an HIV vaccine in HIV-uninfected adults. Study researchers will also determine the maximum dose of the vaccine that participants can safely receive.
The investigators propose to study the impact of nucleic acid amplification testing (NAT) screening for acute Human Immunodeficiency Virus (HIV) and Hepatitis C (HCV) infections and Less-Sensitive Enzyme linked Immunoassay (LS-EIA) or 'detuned' testing Vironostika, Trinity Biotech BED, or Ortho-Clinical Diagnostic Vistros ECi for early HIV infection in conjunction with routine rapid HIV testing at HIV counseling and testing sites and venues in the San Diego county. The overarching goal of this study is to develop and implement a system to identify, notify and engage into care those individuals with recent HIV infection in order to better define the HIV and Hepatitis C Virus (HCV) epidemics in the San Diego county and to evaluate and characterize HIV transmission dynamics within the San Diego population.
The purpose of this study is to determine the safety, toxicity, dosing, and antiviral effects of epigallocatechin gallate (EGCG) in capsule form (Polyphenon® E), administered orally twice daily at three different doses in HIV-1-infected clinically stable, treatment-naïve and treatment-experienced adults not on concomitant antiretroviral (ARV) therapy.
Early accurate diagnosis is one of the first crucial steps in care for infants born to HIV-infected mothers. Early initiation of antiretroviral therapy (ART) relies upon early diagnosis and results in significant reductions in infant morbidity and mortality. There is little information on evidence-based interventions that specifically target improved attendance of postpartum clinic visits and subsequent infant HIV testing in the context of prevention of mother-to-child transmission of HIV (PMTCT) programs. The investigators propose a randomized controlled trial to examine the effect of text messages sent to women enrolled in PMTCT programs on adherence to postpartum clinic visits and uptake of early infant diagnosis by DNA polymerase chain reaction (PCR). This study seeks to test the hypotheses that (a) text messages sent to women enrolled in PMTCT will improve their attendance at the postnatal clinic within the first 6-8 weeks after childbirth; and (b) text messages sent to women enrolled in PMTCT programs will increase uptake of DNA PCR HIV testing at 6-8 weeks among infants exposed to HIV. This study will evaluate a novel strategy to improve adherence to postnatal clinic visits and increase the uptake of infant HIV testing. If proven superior to standard care, the proposed intervention can be easily scaled-up and integrated into existing healthcare systems in resource-limited settings. Findings from this study will provide randomized trial evidence to inform HIV prevention program planners and implementers. This study will also provide further information on the feasibility of using mobile phone-based technology for public health interventions in resource-limited settings.
This study is to investigate the safety of maraviroc by examining whether there is bone metabolism dysfunction in actual use of maraviroc in human body, or not, measuring bone mineral density and markers for bone formation, desorption and chemokine.
Main objective : To develop the tools for evaluation of humoral and cell-mediated immunity after Yellow Fever Vaccine (YFV) and compare virological and immune responses in HIV-positive and HIV-negative individuals who had not been given YFV before. Secondary objectives : - To develop and assess ELISPOT technology for yellow fever and to measure the response within 7, 14, 28, 90 and 365 days of administration of YFV in 30 HIV negative subjects and 40 HIV positive subjects (CD4 > 350/mm3 under Highly Active Antiretroviral Therapy (HAART) for at least one year, with a viral load < 50 copies/mL since at least 6 months) in terms of : (1) seroconversion by fluorescence, (2) cytotoxic response in ELISPOT, (3) neutralizing antibody levels in Plaque reduction neutralization test (PRNT:reference method) and a new pseudotype based method, (4) post-vaccination viremia and (5) diversity of viral quasi-species. - To assess the impact of YFV on the T-lymphocyte response against HIV by ELISPOT and viral load.
Dolutegravir (DTG, GSK1349572 is an integrase inhibitor that is currently in Phase 3 clinical development for the treatment of human immunodeficiency virus (HIV) infection. DTG is primarily metabolized by UDP-glucuronosyltransferase (UGT1A1) with cytochrome P450 (CYP)3A4 pathway as a minor route. Corticosteroids have demonstrated induction effects on UGTs and CYP3A4. Corticosteroids are often used in HIV-infected subjects and have the potential to reduce DTG exposure due to enzyme induction when co-administered. The primary objective of this study is to determine whether concomitant prednisone administration can affect the pharmacokinetics (PK) of DTG. The study is a two part, two period, open label study. Part 1 will evaluate the effect of a high prednisone dose on DTG PK with the potential for an additional Part 2 depending on the results from Part 1. In Part 1, approximately 12 healthy subjects will receive DTG 50mg q24h for 5 days in Period 1. Subjects will then be administered DTG 50mg q24h in combination with prednisone 60mg for 5 days followed by a 5 day taper (total duration of 10 days) in Period 2. PK data of DTG will be obtained from Part 1 and used to inform decision making on the need for Part 2. If DTG exposure is reduced by more than 50% in Part 1, Part 2 will be carried out where a second cohort of subjects will receive DTG 50mg q24h DTG for 5 days in Period 1 followed by DTG 50mg q24h in combination with prednisone 20mg for 5 days followed by a 5 day taper (total duration of 10 days) in Period 2. Safety evaluations and serial PK samples for DTG will be collected during each treatment period. A follow-up visit will occur 7-14 days after the last dose of study drug. All doses of study drugs will be taken following a moderate fat meal. This study will be conducted at one center in the United States, with healthy adult male and female subjects.