There are more than 498,563 clinical trials published worldwide with over 60,000 trials that are currently either recruiting or not yet recruiting. Use our filters on this page to find more information on current clinical trials or past clinical trials (free or paid) for study purposes and read about their results.
Lyme disease is the most common tick-borne disease in the United States. It is caused by the spirochete Borrelia burgdorferi. It may exist in a chronic form and be the result of: 1) persistent infection by B. burgdorferi; 2) damage caused by the original infectious process; or 3) the presence of coinfection with another organism transmitted by Ixodes ticks. The purpose of this study is to determine the safety and effectiveness, in seronegative patients, of intensive antibiotic treatment in eliminating symptoms of Chronic Lyme Disease (CLD).
This study will look at different anti-HIV drug regimens to see which works best to keep the level of HIV (viral load) in the blood as low as possible during maintenance therapy. You will be assigned randomly (like tossing a coin) to 1 of 3 groups: Group 1: Didanosine plus stavudine plus hydroxyurea (ddI/d4T/HU). Group 2: Didanosine plus stavudine plus efavirenz (ddI/d4T/EFV). Group 3: This group of patients will remain on their current drug regimens. This study will last approximately 3 years; you will receive study medications for the duration of the study. Anti-HIV drug regimens that include protease inhibitors (PIs) are very good at lowering viral load. However, some patients have a rise in HIV levels while on PI maintenance. It may be possible to keep HIV levels low using another class of drugs for maintenance that are easier to take and less expensive than PIs. If viral load increases while a patient is taking this second group of drugs, it may be possible to restart the PI drug regimen and again decrease HIV levels.
The purpose of this study is to find out whether taking protease inhibitors (anti-HIV drugs) together with lipid-lowering drugs (drugs which lower the amount of fat in the blood) has an effect on the level of drugs found in the blood compared to when these drugs are taken separately. The three protease inhibitors given in this study are ritonavir, saquinavir, and nelfinavir. The lipid-lowering drugs given are pravastatin, simvastatin, and atorvastatin. Anti-HIV drug therapy using protease inhibitors has become very common treatment for HIV-positive patients. Recently, however, serious side effects involving how the body uses fat have been reported in people taking protease inhibitors. Examples of these side effects are redistribution of body fat and development of diabetes. People taking protease inhibitors have been found to have higher levels of fat in their blood than is normal, which can cause heart problems. It is hoped that giving lipid-lowering drugs can help prevent serious heart problems. First, however, it is important to see what happens when protease inhibitors and lipid-lowering drugs are given together.
The purpose of this study is to see if giving the anti-HIV drug nevirapine (NVP) to HIV-positive pregnant women and their babies can help reduce the chance that a mother will give HIV to her baby during delivery. Previous studies suggest that NVP is a promising medication for blocking HIV transmission from HIV-positive mothers to their babies.
The purpose of this study is to determine the effects of an HIV vaccine (Remune) on the immune system. This study involves patients who have received at least 60 weeks of anti-HIV therapy, either alone or in combination with IL-2, while enrolled in ACTG 328. Remune is an experimental HIV vaccine. To see how the body's immune system reacts, this vaccine will be given with 1 to 3 other vaccines, and skin tests will monitor the body's reaction.
The purpose of this study is to determine if a combination anti-HIV drug treatment regimen of indinavir plus lamivudine (3TC) plus zidovudine (ZDV) is effective in treating HIV and in reducing the chances of passing HIV from mother to child. This study will also examine if this combination is well tolerated by HIV-positive pregnant women and if a combination of 3TC plus ZDV is safe for newborns. Previous studies in adults and children have shown that indinavir plus 3TC plus ZDV can reduce the amount of HIV in the blood. Most HIV-positive pregnant women usually take ZDV to treat HIV and to reduce the chances of giving HIV to their babies. The combination of drugs in this study may be more effective than ZDV alone.
The purpose of this study is to evaluate the safety, tolerance, and overall effectiveness of cidovir to treat PML in AIDS patients. PML is an opportunistic infection (HIV-associated, due to weak immune system) caused by a virus that attacks the brain. Cidovir has been used effectively to treat cytomegalovirus (CMV) of the eye. Cidovir could be an effective treatment for PML as well.
The purpose of this study is to test three experimental HIV vaccines. This study will look at whether it is safe to give these vaccines together and how the immune system responds to the vaccines. There are a number of studies being performed to test HIV vaccines. The vaccines that seem to be the most promising are canarypox vaccines, known as ALVAC vaccines. The three experimental HIV vaccines used in this study are called ALVAC-HIV vCP205, HIV-1 SF-2 p24, and HIV-1 SF-2 rgp120. The HIV-1 SF-2 p24 and HIV-1 SF-2 rgp120 vaccines are mixed with an adjuvant, which is a substance that increases immune response.
This study is designed to find out whether HIV-positive patients whose immune systems have improved after receiving anti-HIV treatment should take azithromycin to prevent Mycobacterium avium complex (MAC) disease. This study also examines the possibility of putting off MAC prevention treatment in patients who respond well to anti-HIV drug therapy. Azithromycin is approved for the prevention of MAC disease in people with HIV and low CD4 cell counts. However, some people who have taken azithromycin have been found to carry antibiotic-resistant bacteria (germs that can grow despite the presence of drugs used to kill them). It is not known whether the risks associated with taking azithromycin outweigh the risk of getting MAC disease.
The purpose of this study is to examine how rIL-2 affects HIV-positive patients with CD4 counts over 300 cells/mm3 who are on anti-HIV drug therapy. The drug rIL-2 has been shown to increase CD4 cell counts, which help the body fight off HIV. There is strong evidence that rIL-2 increases CD4 cell counts (cells of the immune system that fight infection). This study examines the effect of 2 different amounts of rIL-2 on CD4 cell count and the amount of HIV in the blood (viral burden).