View clinical trials related to HIV Infections.
Filter by:This study examines the long-term effects of interleukin-2 (IL-2) in combination with anti-HIV drugs, or highly active antiretroviral therapy (HAART). The purpose of this study is to see if IL-2 can increase the number of CD4 cells (cells of the immune system which fight infection) in HIV-infected patients who have completed ACTG 328. HAART is often successful in decreasing viral load (level of HIV in the blood), but these drugs have not been able to restore the immune systems of HIV-infected patients. IL-2 is a substance naturally produced by the body's immune cells. In ACTG 328, IL-2 is tested to see if it can increase the number of CD4 cells and "boost" a patient's immune system. This study is a follow-up to ACTG 328 so that patients who are benefiting from IL-2 can continue to take it and patients in the control group who do not receive IL-2 can start taking it.
The purpose of this study is to determine whether it is better to start an anti-HIV regimen containing a protease inhibitor (PI), a non-nucleoside reverse transcriptase inhibitor (NNRTI), or a PI in combination with an NNRTI. This study will also examine which treatment regimen is best as a first treatment for HIV infection.
The purpose of this study is to see if it is safe and effective to give prednisone to HIV-infected patients. Prednisone is a corticosteroid, a hormone produced by the body that inhibits immune cell responses. Prednisone may be able to lower the level of HIV in the body (viral load) by reducing the number of cells that HIV can infect. At the same time, prednisone may be able to increase CD4 cell counts (cells of the immune system that fight infection).
The purpose of this study is to see if it is safe to give saquinavir-SGC (SQV) combined with low-dose ritonavir (RTV) plus zidovudine (ZDV) and lamivudine (3TC) to HIV-positive pregnant women and to see if it is safe to give 3TC and ZDV to their newborns. Another purpose is to see what levels of SQV, low-dose RTV, ZDV, and 3TC are found in mothers and what levels of ZDV and 3TC are seen in newborns. Another purpose of this study is to see whether SQV passes from mother to newborn and if it passes at a level that is safe for the newborn. Although ZDV has been able to reduce the rate of transmission of HIV from mother to child, it may be possible to reduce it further by using a combination of anti-HIV drugs. This study adds SQV (a protease inhibitor [PI]) with RTV (another PI) and 3TC (a reverse transcriptase inhibitor) to the mother's ZDV regimen.
The purpose of this study is to compare the effectiveness of various combinations of anti-HIV drugs in HIV-positive men and women. Patients receive specific combinations of 3 or 4 of the following 6 drugs: didanosine (ddI), stavudine (d4T) efavirenz (EFV), nelfinavir (NFV), lamivudine (3TC), or zidovudine (ZDV). Anti-HIV therapy is effective in preventing the spread of HIV in the body. However, patients often experience unpleasant side effects and have difficulties following the dosing schedule. This study looks for combinations of anti-HIV drugs ("cocktails") which will be the most effective with the fewest problems.
The purpose of this study is to determine the safety and effectiveness of combining several anti-HIV drugs in order to decrease plasma viral load (level of HIV in the blood) in HIV-positive patients who have failed nelfinavir (NFV) treatment. In order to determine the ability of a drug regimen to decrease viral load after drug treatment has failed, it is best to test a variety different of drug "cocktails" (drug regimens). The drug cocktails in this study include 2 new nucleoside reverse transcriptase inhibitors (NRTIs), efavirenz (an NNRTI, non-nucleoside reverse transcriptase inhibitor), and either 1 or 2 protease inhibitors. It is important to include multiple drugs from different groups in a drug cocktail since combinations containing fewer drugs are likely to fail.
The purpose of this study is to set up a blood bank for infants who have HIV-positive mothers. This blood may be used in the future to treat the child if he/she turns out to be HIV-positive. Blood from the umbilical cord contains a certain kind of cell called a stem cell. Stem cells eventually turn into one of the many types of blood cells. If HIV infection can be prevented in these stem cells, then, when these stem cells are injected back into the infant, the new cells that develop will also be protected from HIV. This study will provide the blood needed to test whether this type of gene therapy is safe and effective.
This study compares the safety and effectiveness of continuing your current anti-HIV medications to that of adding or switching some of your anti-HIV medications. It will follow the effect of these medication changes, including the addition of hydroxyurea (HU), on long-term viral suppression. Other medications which may be added include didanosine (ddI) and/or stavudine (d4T). Patients receiving combination antiretroviral therapy with indinavir (IDV), zidovudine (ZDV)(or d4T) and lamivudine (3TC) show viral suppression for two years or more. Discontinuation of one or two of these drugs results in prompt loss of the viral suppression. Other studies show that addition of HU to some reverse transcriptase inhibitor treatments results in increased antiviral effects. This study will provide further information on the effect of adding HU to a treatment regimen with respect to long-term viral suppression.
The purpose of this study is to estimate the rate at which a certain population becomes infected with HIV. The individuals examined in this study are people who are expected to take part in future studies of HIV vaccines and nonvaccine HIV prevention studies. This study also examines the chances of becoming HIV-positive based on certain risk factors under conditions that are similar to the conditions that would exist in HIV vaccine and non-HIV prevention studies. Before studying the effectiveness of a potential HIV vaccine, it is important to learn about the range of HIV risk behaviors in the potential participants of these studies. The probability of HIV infection associated with these risk behaviors should also be examined. This study is designed to increase the ability of HIVNET to put into place HIV prevention trials, to increase the diversity of trial participants, and to target populations at highest risk for HIV infection.
The purpose of this study is to compare different treatments for HIV infection to see which works best to lower HIV levels and to raise the number of CD4 cells (cells of the immune system that fight infection), in HIV-positive individuals who have been on a protease inhibitor-containing drug regimen for at least 16 weeks. Researchers have found that combination anti-HIV therapy (multiple drugs given together) can help prevent AIDS-related illnesses and help people with AIDS live longer. In this study, the anti-HIV drug efavirenz (EFV) will be tested with 1 or 2 other protease inhibitors (PIs) to see which combination works best to treat HIV infection. EFV has been shown to limit the amount of HIV virus produced by infected cells.