Active clinical trials for "HIV Infections"

HIV infection is associated with a state of chronic, generalized immune activation that has been shown in many studies to be a key predictor of progression to AIDS. The molecular, cellular, and pathophysiological mechanisms underlying the HIV-associated immune activation are complex and still poorly studied. There is, however, growing consensus that both viral and host factors contribute to this phenotype, with emphasis on the role played by the mucosal immune dysfunction (and consequent microbial translocation). Moreover if it is known that in HIV-infected individuals, a severe depletion of intestinal cluster of differentiation 4 (CD4+) T-cells, is associated with loss of epithelium integrity, microbial translocation and systemic immune activation, the kinetics of intestinal CD4+ T-cell reconstitution under combined antiretroviral therapy (cART) remains poorly understood. This study sought to evaluate the reconstitution of intestinal CD4+ T-cells, including Th1 and Th17, in blood and colon samples collected from HIV-infected individuals before and after a short term cART.

A consortium of research teams has studied the immunovirological characteristics of these patients: The ANRS CO15 ALT cohort The ANRS CO18 HIV Controller cohort the ANRS EP47 VISCONTI study

Based on the investigators previous study, seventy-four of 786 HIV-1 isolates (9.4%), collected between 1999 to 2006, harbored one or more primary mutations associated with antiretroviral resistance to reverse-transcriptase inhibitors (RTIs) or protease inhibitors (PIs) in naïve patients. However, the drug resistance profiles for the HIV-1 integrase gene is unclear. Three objectives are proposed: To investigate and compare the drug resistance profiles for the HIV-1 integrase gene between experienced and naive patients, who has not being exposed to Raltegravir. To investigate and compare the drug resistance profiles for the HIV-1 integrase gene between different subtypes (subtype B, CRF01_AE and CRF07_BC). To identify potential amino acid mutations in the integrase gene, which might affect the efficacy of Raltegravir.

The purpose of this study is to collect data on the body's breakdown of sugar and fat in HIV infected adults. Data from this study will make clearer the roles of HIV infection and anti-HIV drugs in the development of diabetes, heart disease, and fat redistribution in HIV infected adults.

The Women's Interagency HIV Study (WIHS), a multicenter, prospective study, was established in August 1993 to carry out comprehensive investigations of the impact of HIV infection and its clinical, laboratory, and psychosocial effects in women. The purpose of this study is to collect and evaluate these data from HIV infected and at-risk women to better understand and provide support for women whom are currently HIV infected or who are at risk for HIV infection.

This cluster randomized control trial examines whether an audit and feedback study improves care of patients living with HIV/AIDS in a family health team setting.

Background Commencement of lifelong highly active antiretroviral therapy (HAART) immediately after HIV diagnosis (option B+), for treatment of human immunodeficiency virus (HIV), has greatly improved maternal-infant health in sub Saharan Africa (SSA). However, this development has also dramatically increased the number of maternally HAART/HIV-exposed-uninfected (HEU) infants in areas of high HIV prevalence. Compared to their HIV-unexposed uninfected (HUU) counterparts, HEU infants show increased mortality, higher rates of adverse birth outcomes, infectious and non-communicable diseases and impaired growth, immune responses and neurodevelopment. Adverse clinical outcomes and their respective risk factors alongside associated biomarkers of HEU infants in SSA have been insufficiently characterized. Early exposure to HAART and HIV might be risk factors for the adverse outcomes in HEU infants but other potential risk factors and biomarkers remain understudied. Methods The University of Zimbabwe-College of Health Science birth cohort is a prospective cohort study of perinatal HIV and in utero HAART exposure throughout the breastfeeding period in the era of option B+. 600 HIV infected and 600 HIV uninfected pregnant women ≥20 weeks of gestation are being enrolled from four primary health centres in poor high-density residential areas of Harare. Clinical, socio-demographic/economic, nutritional and environmental data and bio-samples including maternal urine, stool, plasma, milk, cord blood, amniotic fluid as well as infant serum, dried blood spots and stool are being collected at enrolment, delivery and longitudinal follow-ups as mother-infant pairs from delivery, week(s) 1, 6, 10, 14, 24, 36, 48, 72 and 96 after birth. Infants are being assessed for congenital transmission of HIV, hepatitis B/C viruses, cytomegalovirus, syphilis, and growth, neurodevelopment, and immune-dysregulation. Sub-studies are addressing maternal-infant immunometabolomics, latent tuberculosis infection, dysbiosis of the gut microbiome and the effect of maternal stress thereof. The primary end point of this study is infant mortality until two years of age in HEU versus HUU infants. Secondary outcomes include HEU morbidity. Conclusion Our study will provide a comprehensive assessment of risk factors and associated biomarkers for adverse clinical outcomes for HEU infants and ultimately help developing strategies to mitigate effects of HIV, comorbidities and early life HAART exposure on pregnancy outcome and infant health. Trial registration number, date Key words: HIV, Option B+ highly active antiretroviral therapy (HAART), in utero exposure, breastfeeding, antenatal co-morbidities, immune dysfunction, microbiota, genomics, pregnancy outcomes, neurodevelopment infant health.

Antiretroviral therapy of the mother and of the newborn associated with alternative schemes of breastfeeding can reduce these transmission rates to 1%. The diagnosis of HIV infection in newborns is based on PCR for detection of viral genetic material, a procedure that is expensive and of complex logistics. Tests based on detection of antibodies are faster and cheaper but cannot distinguish infected child or maternal antibodies passed to the fetus through the placenta. Nevertheless, the so-called rapid tests have been implemented in the network of health services because of their simplicity and performance comparable to conventional tests. DPP HIV 1/2 test, produced by Bio-Manguinos/Fiocruz, usage is limited by the manufacturer to over 24 months of age children, though the guidelines control programs already recommend the use from 18 months in Brazil and 9 months in other countries. Data on the accuracy of the rapid test under 24 months of age are scarce. This proposal aims to assess the performance of rapid tests produced by Bio-Manguinhos in diagnostic protocols for HIV infection in children 9-24 months old, in order to obtain empirical data to support the current recommendations on rapid tests, particularly in countries with limited access to tests that require specialized laboratories. The validation of rapid HIV testing in other age groups is a requirement of the national regulatory authorities, and has important implications for programs to control HIV-AIDS in populations from countries with limited access to specialized laboratory resources. The use of the rapid test can also represent a significant reduction in costs, as it allows limiting the use of molecular tests to complex and expensive confirmation cases.

We will conduct a four-year, observational study of 850 participants to measure physical activity and diet, once a year for three years. All participants will also complete the standard Centers for AIDS Research (CFAR) Network of Integrated Clinical Systems (CNICS) patient-reported outcomes (PRO) and clinical assessment procedures. An enhanced PRO assessment (consisting measures of physical activity, diet intake and anthropomorphic factors) will be included after the routine patient clinic visit at four CNICS sites: Case Western Reserve University, University of Alabama at Birmingham, University of Washington, and Fenway Health.

This observational research study will evaluate medical gender affirmation delivered in primary care as an intervention to reduce disparities in HIV-related outcomes (e.g., low rates of PrEP uptake for HIV-uninfected patients, high rates of viral suppression for HIV-infected patients) for transgender patients in two urban federally-qualified community health centers.