View clinical trials related to HIV.
Filter by:Early childhood (up to age 5 yrs) is a period of dramatic change in the cognitive, emotional, social, and behavioral domains; children continuously progress by observing and interacting with the world around them. In the face of economic instability and nutritional, medical and educational deprivation, HIV-affected very young children are the most vulnerable HIV subgroup globally because their families are often the most vulnerable, with little margin for sustaining a favorable developmental milieu for the child. Through strategic caregiver interventions during this sensitive period of child neurodevelopment, our study findings have the potential for positively re-directing the developmental trajectories of tens of millions of HIV-affected children globally.
The aims of this project are to: 1. To evaluate the pharmacokinetics of first line antituberculosis drugs (isoniazid, rifampicin, pyrazinamide and ethambutol) when applying the 2010 WHO/IUATLD dosing guidelines across pediatric populations (0-12 years of age, HIV infected and uninfected, and with varied nutritional status) in Cape Town, South Africa and Blantyre, Malawi. 2. To evaluate an 8-hourly weight band-based dosing strategy for lopinavir/ritonavir using the commercially available lopinavir/ritonavir (4:1 ratio) in children in South Africa receiving rifampicin-based antituberculosis treatment. 3. To evaluate the pharmacokinetics of nevirapine in children in Malawi receiving rifampicin-based antituberculosis treatment.
Chronic kidney disease (CKD) is an emerging problem in patients with treated HIV. Antiretroviral therapy associated renal dysfunction has been predominantly described in terms of reduced glomerular filtration (eGFR). Proteinuria is a key component of CKD and may occur in the absence of significant reductions in eGFR. This substudy is an exploration of changes in urinary protein excretion in a randomised, open-label study to evaluate the efficacy and safety of MVC as a switch for either nucleoside or nucleotide analogue reverse transcriptase inhibitors (N(t)RTI) or boosted protease inhibitors (PI/r) in HIV-1 infected individuals with stable, well-controlled plasma HIV-RNA while taking their first N(t)RTI + PI/r regimen of combination antiretroviral therapy (cART).
The proposed project will test an HIV prevention intervention for Latino parent-adolescents dyads. This randomized controlled trial will: 1. Recruit and randomize 320 parent-adolescent dyads into a Latino family-based HIV prevention intervention or a family-based General Health Promotion condition. 2. Determine the efficacy of the Latino Family-based HIV prevention intervention from assessment of changes in HIV-related sexual behavior and attitudes over 18 months among a sample of 320 Latino parent-adolescent dyads. 3. Determine the efficacy of the Latino Family-based HIV prevention intervention from assessment of changes in family relationships and parental monitoring/supervision over 18 months among a sample of 320 Latino parent-adolescent dyads. 4. Examine the association of other important constructs, such as religiosity, acculturation, cultural values, and sexual socialization with the primary outcomes. Based on a thorough review of the literature and preliminary data from a recent, small pilot study, the investigators hypotheses are: 1. Compared to the General Health Promotion Control condition, the Family-Based HIV Prevention intervention will result in greater change with regard to primary outcome measures of safer sexual behavior (recent sexual activity, the number of unprotected sex acts, and intentions to use condoms) and safer HIV-related attitudes. 2. Compared to the General Health Promotion Control condition, the Family-Based HIV Prevention intervention will result in greater change with regard to family relationships and parental monitoring/supervision through improved parent-child communication skills and they will mediate the intervention impact. 3. Religiosity, acculturation, cultural values, and sexual socialization will have meaningful associations with the primary outcomes and will act as moderators of intervention impact.
The objective of this randomized, controlled trial is to determine if adding a protein-calorie supplement (PCS) to the standard treatments for tuberculosis (TB) and HIV will improve health outcomes. The investigators will enroll 180 HIV-positive women with newly diagnosed active TB and without prior anti-retroviral therapy (ART). At baseline, the investigators will conduct dietary interviews, measure body composition, randomize subjects to receive a PCS (plus micronutritional supplements [MNS]) or control (MNS only) for the 6-month duration of anti-TB therapy (ATT) plus an additional 2 mos (8 mos total). Subjects will be followed monthly and have CD4 counts at baseline, 2, 8 and 12 months. At 2 months (i.e., at the end of the 4 drug intensive phase of TB treatment and start of the 2 drug continuation phase), all subjects will be started on anti-retroviral therapy (ART) based on Tanzanian Ministry of Health guidelines (currently: AZT/3TC/efavirenz). The primary endpoint will be change in CD4 count after 8 months (i.e., at end of PCS/MNS intervention and 2 months after completion of ATT).
HIV positive pregnant women who receive potent combination antiretroviral therapy over at least the last trimester of pregnancy, and who have proper obstetric interventions and are able to avoid breast feeding, decrease the risk of having an infected infant to about 1%. Breast milk HIV-1 RNA (cell free) viral load is significantly associated with breast milk transmission, and a 2-fold increased risk of transmission associated with every 10-fold increase in breast milk viral load has been reported. In addition, cell associated virus (HIV DNA) was associated with a significant increase in risk of transmission independent of the level of cell-free viral RNA. However, multiple studies of HIV positive women giving birth have shown that exclusive breast-feeding carries a much lower risk of HIV transmission than mixed breast-feeding (defined as breast milk along with complementary food, other milk, and/or infant formula). The proposed study will measure the antiretroviral (ARV) drug etravirine concentrations in blood and breast milk in postpartum HIV positive women on HAART therapy. The short-term goal is to determine how much etravirine penetrates into breast milk, and whether it leads to undetectable HIV viral load in the breast milk and therefore has the potential to decrease the risk of transmission of HIV through breast milk. The long term goal is to see if breast milk HIV levels can be lowered sufficiently to prevent maternal to child transmission (MTCT) of HIV in infants receiving only breast feeding in resource poor areas.
In optimally managed HIV+ women with undetectable viral loads, who are on HAART and also receiving intrapartum IV ZDV, the risk of vertical transmission of HIV is independent of the length of time of rupture of membranes.
The main purpose of this implementation science study is to find out if providing aPS at 18 different Ministry of Health (MOH) VCT clinics in Kenya works and is cost-effective. This would enable co-investigators in the Kenyan MOH to justify funding to scale-up these services. The primary aim of the study is to find out whether providing aPS to sexual partners of newly tested HIV-infected individuals can result in more sexual partners getting counseled and HIV tested and linked to HIV care programs for initiation of ART if appropriate. The investigators hypothesize that aPS will increase rates of case-finding, linkages to care, and ART initiation and will not result in social harm. The second aim is whether aPS is cost-effective in the Kenyan setting. The investigators will estimate how much it costs (when compared to standard methods) to identify and link HIV-infected persons into care. The investigators will also determine how successful aPS is at preventing future HIV transmission events and other outcomes associated with untreated HIV infection. The investigators hypothesize that HIV prevalence among partners in the immediate aPS arm will be high enough to make this approach cost-effective from the payer and societal perspective. Finally, with the Kenya MOH, the investigators want to establish a nationwide monitoring system to evaluate why Kenyans are testing for HIV. In the future, when aPS is rolled out nationally, this will help Kenyan public health officials define the contribution of aPS to HIV case-finding. The investigators hypothesize that the proportion of newly tested HIV-infected individuals who report testing because of known exposure to a person with HIV will represent a significant proportion of new cases and the investigators will be able to identify places in Kenya where aPS will have the greatest impact on HIV treatment and prevention.
This study will evaluate the efficacy of an integrated "Retention Clinic" in achieving virologic suppression among HIV-infected cocaine (including crack) users by using a two-group randomized, prospective trial. A total of 360 HIV-infected individuals who report cocaine (including crack) use will be randomized across study sites. The primary hypothesis is that more participants randomized to the "Retention Clinic" will have undetectable viral load than will participants randomized to the treatment as usual group.
Primary Objective: This study will evaluate the most effective strategy in achieving HIV virologic suppression among HIV-infected substance users recruited from the hospital setting who are randomly assigned to one of three treatment conditions: 1) Patient Navigator (PN); 2) Patient Navigator + Contingency Management (PN+CM); and 3) Treatment as Usual (TAU). Primary Hypothesis: The rate of viral suppression (plasma HIV viral load of <= 200 copies/mL) relative to non-suppression or all-cause mortality in the 3 study groups will differ from each other at the 12 month follow-up. Sub-hypothesis 1. The rate of virologic suppression (plasma HIV viral load of <= 200 copies/mL) in the PN+CM group will be greater than that in the TAU group. Sub-hypothesis 2. The rate of virologic suppression in the PN+CM group will be greater than that in the PN group. Sub-hypothesis 3. The rate of virologic suppression in the PN group will be greater than that in the TAU group. Secondary Objectives: 1. To evaluate the effect of the experimental interventions on: HIV virological suppression and CD4 T-cell count changes at 6 months post-randomization; engagement in HIV primary care and visit attendance; and rate of hospitalizations. 2. To evaluate the effect of the experimental interventions on: drug use frequency and severity; and drug use treatment engagement and session attendance. 3. To assess selected mechanisms of action of the intervention (.i.e. mediators of intervention effect). 4. To assess potential characteristics associated with differential treatment effectiveness (i.e. moderators of intervention effect). 5. To evaluate the incremental cost and cost-effectiveness of the interventions.