Active clinical trials for "HIV Infections"

The purpose of this clinical research study is to assess the effect of Famotidine given twice daily on Atazanavir administered with Ritonavir in HIV-Infected subjects.

The purpose of this study is to confirm that apricitabine does not induce any clinically significant effect upon electrocardiogram (ECG) parameters at doses consistent with the maximum exposure expected to occur in clinical practice.

This study will evaluate the effectiveness of a modified directly observed therapy program in increasing antiretroviral therapy adherence in poor, HIV-infected residents of urban communities.

The UNAIDS 90-90-90 goals represents an ambitious strategy to end the acquired immunodeficiency syndrome (AIDS) epidemic by 2020 [UNAIDS, 2015]. While viral load (VL) quantification is the gold standard of HIV treatment monitoring, it is only routinely available and employed in resource-rich countries. The use of an affordable, reliable, point-of-care (POC) VL assay has been considered a "game-changer", where increased access, minimal lab worker training, and same day results could be addressed in a single solution. To date, POC VL assays have been evaluated by their manufacturers with reference panels of samples with some in-country laboratory evaluations. While these are appropriate and critical first steps, it is also important to evaluate the impact of this new technology against the standard of care (SOC) method of VL monitoring in an actual resource-limited setting. Nigeria has the second highest burden of HIV in the world, with an estimated 3.2 million infected and serves as a relevant setting for testing feasibility and efficacy of POC VL monitoring [UNAIDS, 2016]. In order to present the case for implementing the use of POC VL testing across Nigeria, data on the acceptability, feasibility and efficacy of using POC testing for VL monitoring are needed. To address this need, the investigators have designed a randomized controlled trial comparing POC VL to monitoring to the SOC, which follows the Nigerian National Guidelines, to provide operational evidence for implementation of POC VL testing in Nigeria. This trial is aimed at testing the hypothesis that using POC versus SOC VL monitoring in HIV-infected patients newly initiating ART will improve overall ART outcomes, increase ART adherence and program retention rates, and result in faster switches to second-line treatment of patients failing first-line ART.

This study will validate a wrist-worn alcohol monitor (BACtrack Skyn) in both laboratory and real-life settings.

This cluster-randomized trial tests a differentiated care model for HIV-positive individuals not on ART during a home-based HIV testing campaign in rural Lesotho, Southern Africa. In intervention clusters, patients are offered a differentiated ART delivery package with two features. Firstly, drug-refill and follow-up are provided by village health workers (VHW), reducing clinic visits to twice a year for laboratory assessment. Secondly, participants have the option of receiving individually tailored adherence reminders and viral load result notifications via SMS.

Purpose: To Assess the impact of high and low in vivo estradiol exposure on PrEP (Pre-exposure prophylaxis) nucleotide concentrations in different cellular populations of the lower GI (gastrointestinal) tract and to quantify the relationship between estradiol, progesterone, and testosterone on PrEP nucleotide concentrations in rectal and peripheral blood mononuclear cells. As well as the relationship between estradiol, progesterone, and testosterone on PrEP concentrations in plasma. Participants: Healthy, cisgender female, volunteers, aged 18-49 inclusive on the date of screening with an intact gastrointestinal system and regular menstrual cycle. Procedures (methods): Participants will take a single daily dose of study drug for five days before each sampling visit. The visits will be scheduled during the early follicular phase of the menstrual cycle (approximately days 2-5 after the first day of menses, Visit 1) when estradiol is predicted to be the lowest and the late follicular phase (approximately days 12-15 after the first day of menses, Visit 2) when estradiol is predicted to be highest. Samples of blood, rectal cells, and rectal tissue will be collected at both Visits 1 and 2. All participants will complete a follow-up safety visit within 14 days of completing study sampling.

In this study the investigators will adapt and strengthen, test effectiveness, and explore implementation of conditional lottery incentive linkage strategies to engage men in HIV care and ART in KwaZulu-Natal, South Africa.

Population mobility is common in South Africa, but important research gaps exist describing this mobility and its impact on engagement in HIV care, particularly among pregnant and postpartum women. Through this study, the investigators propose to test a smartphone application - CareConekta - to conduct essential formative work on mobility and evaluate this app as an intervention to facilitate engagement in HIV care during times of mobility. This work is critical to adapting CareConekta for widespread use, providing critical information about mobility during the peripartum period and the impact on engagement in HIV care, and piloting this intervention to improve engagement.

Introduction: It is well known that the infection caused by the Human Immunodeficiency Virus (HIV) is associated to a higher cardiovascular event risk. On the other hand, it is clear that the aerobic exercise training induces improvements in autonomic control and vascular function, through increases in vasodilator agents and blood vessels number. However, the investigators could not find previous works that studied the microvascular function in response to exercise training in HIV patients. Objectives: To study the impact of aerobic exercise training in endothelial function of HIV patients. In addition, the investigators will verify the association of the physical fitness to the nitric oxide bioavailability, angiogenesis and lipid profile in HIV patients. Methods: The study subjects will be composed by HIV patients, that will be randomly divided in two different groups: exercised and sedentary. The subjects will be tested before and after training in regards to endothelial function, nitric oxide bioavailability, physical fitness and lipid profile, through flowmetry, colorimetric essays, maximal cardiopulmonary exercise test, and biochemical tests; respectively. The exercise training will be performed in a treadmill for 12 weeks, 3 times a week, 40 minutes each section. Expected Results: The investigators expect to achieve markers that will help in understanding the interaction of HIV with several factors that contribute to an increased endothelial function after exercise training.