View clinical trials related to HIV.
Filter by:This study is a Phase 2b study designed to evaluate the efficacy, safety, and tolerability of PRO 140 monotherapy for the maintenance of viral suppression in subjects who are stable on combination antiretroviral therapy. Consenting subjects will be shifted from their combination antiretroviral regimen to PRO 140 monotherapy for 12 weeks. Total treatment duration with PRO 140 will be 14 weeks with the one week overlap of existing retroviral regimen and PRO 140 at the beginning of the study treatment, and one week overlap at the end of the treatment in subjects who do not experience virologic failure.
Prior research has documented serious health, mental health, and social-behavioral issues among people living with HIV (PLH) in St. Petersburg. The investigators have established that PLH are clustered in friendship groups with other HIV+ persons and that an intervention delivered to groups composed of HIV+ men who have sex with men (MSM) who were friends in real life reduced mental health distress more than individual counseling. Specific aims of the collaborative mixed-methods, qualitative/ quantitative research are to: (1) identify facilitators and barriers of medical care attendance and ART adherence among PLH in St. Petersburg; (2) integrate these data into an intervention designed to increase HIV care attendance, retention, and adherence; (3) carry out a test-of-concept pilot study that recruits groups of PLH friends and delivers an intervention to intact PLH friendship groups to encourage mutual social support for attending medical appointments and adhering to HIV care; and (4) evaluate the effects of the intervention on both behavioral and biological measures, including viral load. These specific aims will be achieved by research carried out in two phases: In Phase I, we will conduct in-depth interviews with 60 PLH and key informants in St. Petersburg purposively selected to include HIV+ persons in and not in medical care, adherent or not adherent to ART, and including men and women representing diverse exposure risks. In-depth interviews will be analyzed to identify factors associated with attending or not attending care and adhering or not adhering to ART, as well as identifying how HIV+ friends can support one another in HIV care entry, retention, and adherence. In Phase II, the investigators will undertake a randomized intervention pilot study in which 20 groups of PLH friends are recruited by enrolling a PLH seed who is not reliably in care or is ART nonadherent and then recruiting all friends known by the seed to also be HIV+. A 7-session group intervention will be undertaken with all members of the friendship groups in the experimental condition to increase care and adherence-related social support, problem-solving, and mutual assistance for care. Baseline to 6-month followup data will determine whether the intervention produces greater improvement than found in the comparison group in care attendance and treatment adherence, improved mental health, lower substance use, and lower HIV viral load.
To improve ART initiation among people who inject drugs, the investigators propose to develop and pilot a multi-component Integrated Methadone and Antiretroviral Therapy strategy (IMAT) in Dar es Salaam, Tanzania. In doing so, the investigators anticipate building a functional model of methadone and ART integration that improves the effectiveness and efficiency of service delivery.
The purpose of this study is to determine linkage and retention in care in patients with HIV infection and reasons for loss to follow up Care in a High HIV-caseload Inner City Primary Care Practice in Sydney, Australia. The investigators hypothesise that patients attending HHMP will have higher rates of linkage and retention in care than the US HIV-infected population, and equivalent to Australian modelling.
The purpose of this study is to determine whether the current dose of nevirapine recommended in the Ontario Ministry of Health vertical transmission prevention protocol achieves therapeutic drug levels in newborn infants at high risk of HIV infection.
The purpose of this study is to rigorously assess a program designed to empower patient living with HIV, to improve their health care and health, and to reduce disparities.
Combined antiretroviral therapy (cART)-treated patients have increased mortality and morbidity compared to age-matched seronegative individuals. This increased mortality and morbidity has been associated to immune activation that persists also in patients under cART even with undetectable levels of HIV-RNA in blood. Indeed, HIV-infected patients, irrespective of cART treatment, show higher levels of activated T cells, inflammatory monocytes and proinflammatory cytokines than seronegative individuals. Several putative causes of this residual inflammation have been proposed and include ongoing HIV replication at low levels, the presence of coinfections such as cytomegalovirus, and microbial translocation. None of these causes are mutually exclusive and understanding the degree to which of these three cause residual inflammation in cART-treated individuals will require novel therapeutic interventions aimed at alleviated each putative cause. In this longitudinal study we aim: 1. to reduce microbial translocation induced inflammation in cART-treated individuals with supplementation of cART with the probiotics. 2. to investigate the potential benefits of 24 weeks of probiotics supplementation on immune function and on immune activation status Indeed, the early stage of HIV infection is associated with dysbiosis of the GI tract microbiome with reducted levels of bifidobacteria and lactobacillus species with increased levels of potentially pathogenic proteobacteria species.
INTRODUCTION: An adequate zinc supplementation is essential for a good immunological function. However, zinc deficiency is seen in more than 50% of adults infected with HIV. The safety and efficiency of zinc supplements in the progression of HIV is evaluated in the short-term. HYPOTHESIS Null hypothesis: Zinc supplementation does not improve the immunological recovery of HIV patients after three months of daily consumption. Alternate hypothesis: Zinc supplementation improves the immunological recovery of HIV patients after three months of daily consumption
The 2010 revised WHO recommendations to provide antiretroviral (ARV) prophylaxis or treatment to mothers or infants during the breastfeeding period indicate a paradigm shift in prevention of mother-to-child transmission (PMTCT); care; and treatment programming. Yet despite South Africa's adoption of this guidance, myriad challenges currently exist. Confusion in the public health care system related to mixed messaging around safe infant feeding and the provision of—and now withdrawal of—free formula milk have made adherence to exclusive breastfeeding a challenge in South Africa. Cultural, social, and psychological factors influence the ability of women to follow PMTCT guidelines, which include exclusive breastfeeding for six months, adherence to ARV prophylaxis or treatment, and early infant diagnosis. Facility-based interventions alone are often inadequate to effect sustained behavioral changes in the face of multiple contextual factors. Community- and home-based support are needed, yet cost and systems constraints make these infeasible in many PMTCT programs. Some preliminary pilot data suggests that a feeding buddy strategy could fill this gap and provide a home-based support system for the mother. The feeding buddy, who is selected by an HIV-positive pregnant woman to support her in overcoming sociocultural challenges to adhering to various aspects of PMTCT programs, is not an employed health care worker, but rather an individual known to the mother, making the intervention extremely cost-effective, and requiring minimal resources to implement. In the Uthungulu District of KZN the Programme for Appropriate Technologies in Health (PATH) is implementing a programme (Window of Opportunity-WinOp) of improving health of mothers and infants, and the feeding buddy strategy is one of the strategies included in this overall package of care. While this strategy has been encouraged by the South African Department of Health, it has not previously been implemented nor obviously evaluated. In order to scale-up such a programme and justify the human resource costs, it is vital that such a programme be evaluated. The goal of this proposed research study is therefore to evaluate the effect of the feeding buddy strategy to support mothers to adhere to PMTCT recommendations. The investigators hypothesize that mothers who choose a feeding buddy will have increased rates of exclusive breastfeeding and adherence to ARV prophylaxis or treatment, as well as improved rates of early infant diagnosis and stigma reduction. This evaluation will provide valuable information to the Department of Health in terms of choosing best practice models for promoting HIV-free infant survival and optimum health of infants in resource limited settings. The project plans to employ a cluster randomized intervention design and will include 300 mothers and their infants as well as the 300 buddies in the intervention group, as well as 300 mothers in the control group. All participants will be part of the WinOp feeding buddy intervention programme.
The female upper genital tract is a unique compartment involved in HIV pathogenesis.