Active clinical trials for "HIV Infections"

The objective of this study is to determine whether 12 weeks of mesalamine therapy added to a standard HIV treatment decreases systemic immune activation and inflammation in HIV-infected patients, possibly resulting in better recovery of the immune system. The study hypothesis is that decreasing inflammation directly in the gut may decrease both of these potential causes of chronic inflammation, potentially resulting in an immunologic benefit.

To evaluate the safety and efficacy of Stribild®, a single tablet regimen (STR) containing fixed doses of elvitegravir (EVG)/cobicistat (COBI [GS-9350])/emtricitabine (FTC)/tenofovir disoproxil fumarate (TDF) versus efavirenz (EFV)/FTC/TDF (Atripla®) in HIV-1 infected, antiretroviral treatment-naive adults. Stribild offers an alternative STR for patients who are not candidates for non-nucleoside reverse transcriptor-based STRs.

Optimal vitamin D (vit D) concentration and metabolism are essential for normal immune function, growth, muscle, bone, and inflammatory status in children, adolescents and adults with HIV/AIDS. The impact of vit D supplementation will be evaluated for safety and efficacy using clinically important outcomes, and this will overcome the critical barrier for use of vit D supplementation in research and clinical care. Inexpensive and easy to administer, vit D supplementation may prove to be an effective and feasible treatment for symptoms and prevention of side effects for people of all ages living with HIV/AIDS in the US and around the world.

Adherence to highly active antiretroviral therapy (HAART) is critical to successful treatment of HIV. This study tested an intervention that helps people infected with HIV take all their medications when and how they were supposed to.

The trial aim is to ascertain what, if anything, needs to be combined with a boosted protease inhibitor (bPI) backbone in second-line therapy in order to maximize the chance of a good clinical outcome following WHO-defined failure on a first-line nucleoside reverse transcriptase inhibitor (NRTI) and NNRTI-containing regimen with probable extensive NRTI and NNRTI resistance mutations.

The purpose of this study is to study how changes in the body during pregnancy influence the blood levels of TMC114 (darunavir) and ritonavir taken together, darunavir and cobicistat taken as a fixed-dose combination, TMC125 (etravirine) taken alone or with darunavir and ritonavir or rilpivirine in patients with human immunodeficiency virus-1 (HIV-1). This study will examine how these drugs are absorbed in the body, how they are distributed within the body and how they are removed from the body over time. Any pregnant woman who is currently receiving darunavir with ritonavir, darunavir with cobicistat, etravirine or rilpivirine for HIV-1, and who meets the eligibility criteria for the study, will be allowed to enroll. Patients must be willing to remain on study medication during the course of their pregnancy, and 12 weeks postpartum. The information collected may help answer questions about how to best prescribe these three drugs for pregnant women.

This research study is being done to find out how the immune system in the small intestines improves after taking antiretroviral (anti-HIV) medications. Biopsies (small snips of tissue) will be taken from the part of the intestines just below the stomach, and will be studied in the laboratory. The main purpose of this study is to measure the increase in the numbers of immune cells in the intestines to see if this number is related to the amount of medication that reaches the intestinal tissue, and the amount of virus that is still hiding there. Subjects are either normal control subjects without HIV or, are HIV positive and are about to start HIV medications. As part of this study, HIV positive patients will be randomized to receive one of three possible combinations of medications. maraviroc (Selzentry) in combination with 2 NRTIs (dual nucleoside reverse transcriptase inhibitor) or maraviroc PLUS raltegravir in combination with 2 NRTIs (dual nucleoside reverse transcriptase inhibitor) or efavirenz (Sustiva) in combination with 2 NRTIs (dual nucleoside reverse transcriptase inhibitor) Both Maraviroc and Raltegravir each represent new classes of medications in the way that they interfere with HIV making copies of itself. Maraviroc attaches to the surface of the T-cell that the virus uses to get into the cell and is therefore known as an entry inhibitor. Raltegravir blocks the virus from inserting itself into the DNA of the infected cell's nucleus and is therefore known as an Integrase Inhibitor. We hope to learn more about how antiretroviral drugs affect T cells and how immune function restores itself when HIV infection is treated.

The primary objective of this study is to demonstrate the efficacy of nevirapine extended release (NVP XR) based regimen for HIV-1 infected patients who were receiving nevirapine immediate release (NVP IR) based regimen for at least 18 prior weeks of therapy.

HIV is characterized by frequent immune system activation. Early in the course of infection the body establishes an immune activation "set point" related to the amount of HIV in the blood stream. This set point affects the rate of CD4 cell loss. Without CD4 cells, or with very low levels of CD4 cells, the body cannot fight off illness. This is known as immunodeficiency. If left untreated HIV can lead to extreme immunodeficiency and AIDS. Evidence suggests that by decreasing the rate of immune system activation, immune deficiency progression could be prevented. The purpose of this study is to learn how well chloroquine can reduce the level of immune activation and to test the safety and tolerance of chloroquine in people infected with HIV.

Suboptimal improvement in cluster of differentiation 4 (CD4) cell count is not uncommon in HIV-1-infected patients with suppressed plasma HIV-Ribonucleic acid (RNA) levels, and a decrease in CD4 cell count in patients with suppressed or low level viremia has been observed. Although the efficacy of current antiretroviral medications is well established, some antiviral combinations are very effective in suppressing HIV-1 load whereas do not exert any effect on immune reconstitution. Both T-cell immune activation and fibrosis of peripheral lymphoid tissue could create an environment in which CD4 T cell count decrease in the setting of low or suppressed plasma viremia is likely to occur. Another fascinating hypothesis, which has still to be elucidated, is that reconstitution of the depleted CD4 pool is blocked by an excess of glycoprotein 120 (gp120) HIV-1 protein. This extra-production could be counteracted by an inhibitor of the chemokine (C-C motif) receptor 5 (CCR5) co-receptor that represents one of the major docking tools of HIV-1. With this in mind, the investigators would like to propose and design a pilot exploratory clinical trial involving a population of HIV-1-infected patients that rapidly reached a virologic suppression without a reconstitution of their immune system.