View clinical trials related to HIV Infections.
Filter by:DMPA (depot medroxyprogesterone acetate or the 'depot' injection) is a widely used contraception. It is popular in woman with HIV as it probably still works when you take HIV drugs. HIV drugs can increase or decrease the level of other drugs (e.g. contraceptives) in your bloodstream which may make them work less well or increase side effects. It is assumed that DMPA can be given with HIV drugs there are no studies proving this. The purpose of the study is to investigate whether an HIV drug combination containing lopinavir/ritonavir affects DMPA when they are taken at the same time.
Human Immunodeficiency Virus (HIV) infection is permanently established by integrating a deoxyribonucleic acid (DNA) copy into the human chromosome, a step also necessary to complete the Human Immunodeficiency Virus (HIV)replication cycle. Standard treatment of HIV infection suppresses Human Immunodeficiency Virus (HIV)replication and has not been able to eliminate Human Immunodeficiency Virus (HIV)from an infected person because of the integrated Human Immunodeficiency Virus (HIV). Raltegravir (RAL), the first approved antiretroviral (ARV) in a new class called integrase inhibitors, works by preventing integration of Human Immunodeficiency Virus (HIV). For participants with Human Immunodeficiency Virus (HIV)who have never taken antiretroviral medications, this research study will test whether Raltegravir (RAL), a recommended first-line ARV, can eliminate Human Immunodeficiency Virus (HIV)from key immune system cells.
The purpose of this study is to look at the effect of daily herpes medication, valacyclovir, on HIV levels in the blood in persons who are HIV positive and do not have oral or genital herpes.
This is a multi-center study designed to assess the accuracy of Pima™ CD4 Test to enumerate CD4+ T-cells in whole blood over the measurement range expected for the intended population. The Pima CD4 Test consists of the Pima™ CD4 cartridge and Pima™ Analyzer to identify and determine the absolute counts of mature helper (CD3+/CD4+) T-lymphocytes in whole blood.
To assess the maternal and infant safety of a single daily fixed-dose combination of TDF/FTC/EFV (Atripla®), compared to the association of LPV/r (Kaletra® or Aluvia®) and 3TC/ZDV (Combivir®) given to African women to prevent overall MTCT in populations practicing breastfeeding.
The purpose of the study is to determine the safety, tolerability, and plasma pharmacokinetics (i.e., the levels of TMC589337 and TMC589354 circulating in your blood over time) of increasing single oral doses of TMC589337 and TMC589354 and of multiple increasing oral doses followed by a single dose of TMC310911 to assess the potential boosting effect on the latter compound. In this study 3 investigational new drugs are involved. These new investigational drugs called TMC589337 and TMC589354 (from the PEPI family) and TMC310911 are in process of development for the treatment of Human Immunodeficiency Virus-Type 1 (HIV-1). TMC589337 and TMC589354 are novel molecules with no antiviral activity to be used to enhance the pharmacokinetics profile of a drug. TMC310911 is a novel and potent compound and belongs to a medication class called protease inhibitors (PI).
The reduction with antiretroviral therapy (ART) of HIV RNA in blood, and HIV RNA in infected cells and in viruses associated with the follicular dendritic cell (FDC) network in lymphatic tissues, typically follows a two-phase pattern of decline. The half-life of the first-phase is about 1 day and that of the second phase is about 14 days, with comparable estimates for first-phase decay in SIV-infected rhesus macaques. While substantial evidence supports the current view that first-phase decay reflects the death of activated CD4+ T cells infected before ART was begun, the sources of viral RNA in the second phase have not as yet been conclusively established. Possible sources of viral RNA that have been invoked in mathematical models, or for which there is experimental evidence, include longer-lived infected cells such as macrophages and resting CD4+ T cells, dissociation of virus from the FDC network, and productively infected CD4+ T cells that are not subject to clearance by host immune responses because of waning levels of HIV antigen. Raltegravir (MK-0518) belongs to a new class of integrase inhibitors that potently suppress HIV and SIV replication, and reportedly markedly alters the second phase HIV decline in a way that challenges the current view that longer-lived infected cells are the source of virus in this phase. While mathematical modeling of decay of HIV RNA in blood was most consistent with 1) cells newly infected by long-lived cells, or 2) from activation of latently infected cells with full-length unintegrated HIV DNA as a source of second phase virus, we think the data are also quite consistent with the greater efficacy of integrase inhibitors in a particular cell type and/or anatomic site such as the gut. In this protocol we will test the hypothesis that the rapid decrease in HIV replication associated with raltegravir is due to a more complete suppression of viral replication in lymphatic compartments such as lymph nodes and gastrointestinal lymphatic tissue. We will also investigate compartment-specific intracellular levels of raltegravir to potentially explain differences in changes in these compartments.
This is a randomized double blind clinical trial to test the effect of Naltrexone on HIV infected heavy drinkers. The study will select 40 HIV positive patients who meet criteria for heavy drinking. Treatments include Naltrexone (25-100mg)and placebo. Patients will be treated, followed up, and assessed for a duration of 12 weeks. The investigators associated hypotheses Hypothesis 1: Naltrexone will reduce the frequency of heavy drinking. Hypothesis 2: Naltrexone will lead to maintenance or improvement in CD4 lymphocyte count and decreased HIV RNA levels. Hypothesis 3: Naltrexone will lead to a reduction in sexual risk behaviors. Hypothesis 4: Naltrexone will lead to improved adherence to HAART. Hypothesis 5 (Exploratory): Naltrexone will be well-tolerated with minimal side effects and patients will exhibit good treatment retention.
The SCOLTA project is a system for online surveying of adverse events to recently commercialized antiretroviral drugs and a sentinel for unexpected and late adverse events reactions arising during any antiretroviral treatment.Aim of the proposed study is: 1. to evaluate the prevalence and incidence of serious adverse events and serious unexpected adverse events in HIV-infected patients enrolled in the SCOLTA project Tipranavir cohort and to identify possible risk factors 2. the evaluation of tipranavir containing regimens durability, considering treatment interruption for each reason.
Hypothesis: Treatment with raltegravir does not alter V(D)J recombination or immune responses to neoantigens. A process known as V(D)J recombination is essential for developing lymphocytes and the specific functioning of the immune system. Raltegravir is the first approved drug of the new integrase inhibitor class of anti-HIV drugs. Integrase inhibitors have been shown in some studies to interfere with DNA cleavage and the activities of RAG-1/2. These studies suggest a potential to affect aspects of both B-cell and T-cell development, therefore, it is important to evaluate the potential effects that integrase inhibitors may have in clinical use. If immunoglobulin and T-cell receptor genes are altered by HIV integrase, then patient lymphocytes will fail to display normal responses to vaccinations.