View clinical trials related to HIV.
Filter by:This trial will pilot test intervention strategies to increase utilization of HIV testing and gain knowledge for designing a clinical trial to evaluate prevention strategies to reduce HIV sexual transmission in the general population in Russia. The study will assess whether external (cost, convenience) or internal factors (low perception of own risk, reluctance to identify a partner as at-risk, fear of stigma) drive Russian women's reluctance to be tested and if peer support impacts their decision. A randomized experimental manipulation, comparing opt-in vs. bundled opt-out testing approaches, followed by focus group discussions, followed by a second-chance testing offer will be used to inform these questions. The answers will enable the international research team to engineer and then test an HIV testing promotion strategy in Russia. The project will collect preliminary data for a larger study to develop an evidence-based program to reduce the HIV transmission in this high risk population.
This is a Phase I, five arm, single site, randomized, double blind placebo-controlled trial assessing the safety of tenofovir vaginal gel and film formulations. HIV negative women will be randomized to gel or film, tenofovir or placebo. This study will provide additional information in the evaluation of vaginal films containing microbial agents in humans. In addition to safety, the efficacy of these formulations against HIV in an ex vivo biopsy challenge model will be compared. This study is the first study assessing the safety of tenofovir film in humans. Tenofovir film is formulated in a cellulose based vaginal film containing hydroxypropyl methyl cellulose (HPMC) E5 (5 cp), hydroxyethyl cellulose (HEC), Sodium Carboxymethylcellulose (NaCMC), and glycerin. The excipients of the film have documented safety in other clinical settings. While the tenofovir film has not been studied extensively in preclinical studies, there are favorable safety data from the macaque study and a substantial body of research with tenofovir gel. It is appropriate to advance the tenofovir film products into a clinical trial for the following reasons: - No safety concerns were note in the tenofovir film macaque trial. - The toxicity of tenofovir administered vaginally has been studied extensively. No clinically significant toxicity associated with this route of administration has been observed to date. - All of the active ingredients of the tenofovir film have been tested in pre-clinical toxicity studies; therefore, the influence of these ingredients on the toxicity profile of tenofovir has been adequately evaluated and has been shown to result in no local or systemic effects. - The individual components of the tenofovir film have been adequately evaluated and have been shown to be safe.
A prospective, open, multicenter,demonstrative of PrEP, which aims to assess the acceptability, feasibility and safety from chemoprophylaxis co-formulated emtricitabine / tenofovir disoproxil fumarate (FTC / TDF) administered orally, once daily, to MSM and transgender women . The demonstration project aims to include 400 participants over 12 months, with 200 at IPEC-Fiocruz, 100 at CRT-SP and 100 at USP.
We propose a first interaction study between efavirenz (EFV) and R20mg/Kg taking into consideration the absence of data about R induction at this dose. Due to an important inter-patient variability of the CYP2B6 polymorphism, the EFV pharmacokinetic (Pk) will be compared in same patients with and without TB treatment. The main objective is to compare the Pk parameters of EFV in HIV-TB co-infected patients, with and without TB treatment, using R at 10 and 20mg/Kg/day and EFV at 600 and 800mg/day.
Investigators hypothesize that older HIV-infected individuals (i.e., >50 years old) on efavirenz (EFV)-containing antiretroviral therapy (ART) will have significantly worse neurocognitive function than older individuals on non-EFV-containing ART.
M-DART Study is a randomized clinical trial comparing the effectiveness of a home-based modified directly observed antiretroviral (ART) treatment strategy to clinic-based standard of care in patients with HIV/AIDS in Port Victoria, Busia, Kitale, Chulaimbo and Khunyangu, Kenya. Hypothesis 1a: It is feasible to implement M-DART in remote, poverty stricken, high-HIV prevalence rural communities in western Kenya. Hypothesis 1b: M-DART will be a more effective strategy than standard of care (High-Risk Express Care) in reducing mortality and LTFU in patients at the highest risk of dying following ART initiation. Hypothesis 2: M-DART will be cost effective over the 48-week study period Hypothesis 3a: Patients enrolled in M-DART will have higher quality of life scores at 24 and 48 weeks as compared to the control patients. Hypothesis 3b: Patients enrolled in M-DART will have lower HIV related stigma scores at 24 and 48-weeks as compared to the control patients.
The overall purpose of this research is to evaluate the effect of a home-based exercise program on physical function and to improve the health and quality of life for the HIV-infected older adult community.
This program utilizes a community-engaged research approach to implementing and evaluating a program that seeks to reduce sexual risk behavior among Black adult heterosexual men. The investigators aims are to assess the impact of this linguistically and culturally tailored HIV prevention program on the sexual risk of heterosexual, African American men aged 18 and older, to assess the intervention's impact on the more proximal social and psychosocial variables that the program is designed to change, and to identify key contextual level factors that may impact the intervention's impact across segments of this priority population.
Depression is the most common mental health disorder among HIV-patients. Recognizing and treating depression is important in order to improve quality of life and health outcomes in those living with HIV. In clinical practice selective serotonin reuptake inhibitors (SSRIs) are used most frequently in HIV patients with depressive symptoms. A complicating factor in the concomitant use of antiretroviral agents and antidepressant therapy is the occurrence of drug-drug interactions. Citalopram can be seen as one of the preferred SSRIs in HIV-infected patients because citalopram has a relatively favourable drug interaction profile compared to other SSRIs. Raltegravir is an HIV-1 integrase inhibitor and is frequently being used as antiretroviral agent in combination with tenofovir/emtricitabine in HIV-patients. Raltegravir has shown sustained antiretroviral activity, is generally well tolerated and has little propensity to interact with other drugs because it does not inhibit or induce CYP450 enzymes. Theoretically, no clinically relevant drug interaction is expected between raltegravir and citalopram as raltegravir is not a CYP2D6 substrate and thus will not be affected by the possible inhibition of CYP2D6 by citalopram. Raltegravir is metabolized by UGT but citalopram is not known to influence UGT. A possible interaction may occur through inhibition of P-gp mediated transport of raltegravir by citalopram. However, even when no drug interaction is expected theoretically, it may be recommended to collect sufficient clinical evidence to support this hypothesis because unexpected interactions with raltegravir have been observed in the past. In order to be able to recommend raltegravir and citalopram concomitant use, a pharmacokinetic study in healthy volunteers is proposed.
In this study investigators will use a multi-modal imaging approach of MRS and fMRI to comprehensively assess the biological changes in the brain associated with EFV-based regimen (EFV/FTC/TDF), specifically alterations in the brain circuitry, function and local neurochemistry, and their correlation with neuropsychological function. In a cohort of HIV-infected patients who are clinically stable on the commonly use regimen of EFV/emtricitabine (FTC)/truvada (TDF) or Atripla, investigators propose to replace the EFV component with an integrase inhibitor, Raltegravir (RAL), given as the RAL and FTC/TDF to evaluate the EFV-related neural alterations. This is a multidisciplinary study which will be lead by Dr. Nina Lin, in collaboration with the research teams of Dr. Alexander Lin, Director of the Center for Clinical Spectroscopy, and Dr. Emily Stern, Director of the Functional Neuroimaging Laboratory, both members of the Brigham and Women's Department of Radiology at Harvard Medical School, as well as Dr. Jane Epstein, a researcher in Dr. Stern's research group. Dr. Epstein is a staff psychiatrist at Brigham and Women's hospital with extensive experience and expertise in research on abnormalities of affective and motivational processing in the context of neuropsychiatric disorders. Investigators will utilize the established clinical research platform in the Infectious Disease outpatient clinical practice at the Brigham and Women's Hospital, where there is currently have many ongoing HIV-related studies and a large panel of HIV-infected patients motivated to be involved in clinically relevant research. Investigators propose to use advanced neuroimaging to measure biologically changes in the brain associated with long-term EFV use with the following specific aims: 1. Determine changes in neurometabolites measured by MRS in the brain associated with long-term EFV use 2. Assess for alterations in neural activity correlated with affective symptoms associated with EFV vs RAL use using fMRI, and their associations with changes in neurometabolites assessed by MRS, and with changes in cognition assessed by Trail Making and Digit Substitution Tests. 3. Determine changes in emotion, cognition and sleep quality after switching from EFV to RAL, and how they correlate with subject treatment preference. This clinical study will extend our current understanding of EFV neurotoxicity by further defining the nature of these biological changes. Further elucidation of the neurobiological underpinnings of EFV-induced CNS toxicity will have clinical relevance in improving the quality of life and drug adherence of HIV-infected patients on ART, especially among older patients or those with baseline neuropsychiatric disorders, whom at baseline are more vulnerable to neurocognitive decline from long-term HIV infection.