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Find 504 clinical trials for hiv/aids near San Antonio, Texas. Connect with research centers in your area.
Showing 161-180 of 504 trials
NCT00001104
Study A: To determine whether treatment with zidovudine (ZDV) will delay or change the disease process in hemophilic patients who have HIV infection with no symptoms. The major clinical question is whether patients who receive chronic ZDV therapy will have a delay in the development of AIDS or AIDS-related complex (ARC). The pharmacokinetics (blood levels) of ZDV in hemophilic patients will also be studied. Study B: To determine if ZDV therapy changes the risk of a hemophiliac transmitting HIV to his wife or other female sexual partner. To determine the effectiveness of counseling and education on the behaviors of the wives that place them at risk for HIV infection. To determine if antibodies to HIV either appear or disappear from the blood of any of the wives during the study. Study A: Individuals who are infected with HIV can benefit from therapy with an effective anti-AIDS virus agent. ZDV is a potent inhibitor of HIV in vitro (test tube) and is safe in humans at the dose planned. It may be effective in preventing the development of AIDS or ARC in hemophiliacs who have the HIV antibody in their blood. The pharmacokinetic studies are especially important because the high prevalence of hepatic disease in this population may affect the metabolism and blood levels of ZDV. Study B: HIV is transmitted by sexual contact, and wives of infected hemophilic patients have become infected during long-term sexual relationships. Transmission of the virus does not occur during casual family contact. This study will aid in determining if therapy influences the transmission of HIV, because the wives of hemophiliacs generally have no risk for HIV infection other than sexual contact with their spouse.
NCT00000893
Cohort I: The purpose of this study is to see how safe it is to combine 2 anti-HIV medications, efavirenz (EFZ) and nelfinavir (NFV) to treat HIV-positive children and to find an appropriate dose of EFZ to use in combination with NFV. Cohort II: The purpose of this study is to see how safe it is to give EFZ syrup combined with NFV and to measure the levels of EFZ and NFV in the blood. (This purpose reflects a change from the original since there are now 2 different cohorts of patients.) EFZ is an effective anti-HIV medication that easily can be combined with other drugs to treat HIV. This is an early study to determine a safe and effective dose for HIV-positive children. This study also will examine the correct dose of NFV to use in combination with EFZ.
NCT00006144
The purpose of this study is to better understand the relationship between age and HIV disease progression. This study will explore the possible relationship between age and HIV disease progression. Older age is an important risk factor for faster disease development, but older people may respond better to combination drug therapy. This relationship needs to be understood better.
NCT00006145
Cytomegalovirus (CMV) infection is a common opportunistic infection (OI) in HIV patients. The purpose of this study is to find out whether valganciclovir, an antiviral approved by the FDA for the treatment of CMV in the eye, is safe and effective in preventing CMV organ damage in people with HIV.
NCT00006066
The purpose of this study is to determine the safety of a drug called interleukin-2 (IL-2) given with anti-HIV therapy in children with HIV infection. This study will also determine the best dose of IL-2 to give children. IL-2 is an important substance produced by the body's white blood cells that helps the body fight infection. People with HIV infection do not produce enough IL-2. It is hoped that IL-2 treatment will help boost the immune system in people with HIV infection. It has not been studied very much in children and doctors need to know what doses are safe to give.
NCT00084058
The purpose of this study is to determine the effect of increased doses of lopinavir/ritonavir (LPV/r) and saquinavir (SQV) in HIV infected children who are failing their current antiretroviral regimen
NCT00001108
The purpose of this study is to see if 7 drugs, some of them given at higher doses than normal, are safe and tolerated by young patients with AIDS who have failed to respond to other treatments. The study will also see what effect taking several anti-HIV drugs together at high doses has on the body's ability to fight HIV infection. The 7 drugs that will be given in this study are stavudine (d4T), didanosine (ddI), lamivudine (3TC), nelfinavir (NFV), ritonavir (RTV), saquinavir (SQV), and nevirapine (NVP). (This study has been changed from an 8-drug regimen to a 7-drug regimen. Patients no longer receive the drug hydroxyurea \[HU\].) Doctors are seeing many HIV-positive children who did not get good long-term results from the current anti-HIV drugs. Some doctors believe anti-HIV drugs fail because drug levels in the body are too low. In this study, doctors will give patients 7 drugs, some at higher doses than normal. Since it is very important that patients on the study take all of these drugs, doctors will make it as easy as possible. Doctors want to try this because children with advanced AIDS have few treatment choices.
NCT00001079
To test the hypothesis that the predominant accrual of fat rather than lean body mass (LBM) that occurs during treatment of HIV-associated wasting with megestrol acetate may be improved by treatment with megestrol acetate and testosterone enanthate in combination. Body wasting is an increasingly frequent AIDS-defining condition in individuals infected with HIV. Increasing caloric intake fails to consistently restore lean tissue patients with HIV associated weight loss. Megestrol acetate has been shown to stimulate appetite and weight gain in subjects with cancer and in those with HIV associated weight loss. However, the weight gained during treatment with megestrol acetate was predominantly or exclusively fat. An important factor is the preferential increase in body fat seen in both of these studies may have been due to hypogonadism that occurs as a result of treatment with megestrol acetate, a progestational agent. Hypogonadism is associated with an increase in body fat and a decrease in LBM. Concomitant testosterone replacement should substantially increase the amount of LBM accrued during megestrol acetate therapy. This study will determine whether anabolic potential can be realized when caloric intake is increased in the absence of concomitant hypogonadism.
NCT00000952
The study examines the safety and effectiveness of ritonavir (an anti-HIV drug), alone and in combination with other anti-HIV drugs, in HIV-positive children under 2 years of age. This study will also determine the most effective doses of ritonavir for future pediatric HIV studies. Infants infected with HIV by their mothers experience faster disease progression than adults or older children. Treatment with anti-HIV drugs administered at an early age may slow disease progression in infant populations.
NCT00000887
The purpose of this study is to see if giving nelfinavir (NFV) plus zidovudine (ZDV) plus lamivudine (3TC) to HIV-positive pregnant women and their babies is safe. This study will also look at how long these drugs stay in the blood. ZDV has been given to mothers in the past to reduce the chances of passing HIV on to their babies. However, better treatments are needed to further reduce these chances and to better suit the treatment needs of mothers and their children. Taking a combination of anti-HIV drugs during pregnancy may be an answer.
NCT00000839
To assess the pharmacokinetics, safety, and toxicity of intravenous and oral didanosine (ddI) administration in third trimester pregnant women who are HIV positive but are either intolerant or resistant to zidovudine (AZT). To collect data on infant toxicity following maternal treatment with ddI during the third trimester of pregnancy. AZT may not be the optimal antiretroviral agent for all pregnant women requiring therapy for HIV infection. Although ddI has been approved for use in HIV-infected adults and older children, the safety and pharmacokinetics of ddI in pregnant women has not yet been determined.
NCT00000854
The purpose of this study is to see if giving nandrolone decanoate (a hormonal drug) will cause weight gain in HIV-positive women who have HIV-associated weight loss (wasting). Wasting has become an AIDS-defining condition. In the past, most studies that examined wasting treatments were limited to men. However, it appears that wasting in HIV-positive men is linked to levels of testosterone (a hormone which affects men's bodies more than women's). This study has been designed for women only, in order to best treat wasting in HIV-positive women.
NCT00001125
The purpose of this study is to see if the varicella-zoster virus (VZV) vaccine will be safe and if it can help prevent shingles in HIV-infected children who have already had chickenpox. VZV is the virus that causes chickenpox. If this virus is reactivated in the body, it can also cause shingles. Shingles is common in children with HIV who have had chickenpox, although it is usually not life-threatening. The VZV vaccine used in this study may be able to prevent HIV-positive children who have had chickenpox from developing shingles.
NCT00107549
The purpose of this study is to determine the safety of two recombinant HIV vaccines in HIV infected young adults on stable anti-HIV therapy.
NCT00000878
The purpose of this study is to evaluate the safety and tolerance of 2 anti-HIV drugs, d4T and 3TC, given in combination to HIV-positive pregnant women and their infants. Most HIV-positive pregnant women usually take the anti-HIV drug zidovudine (ZDV) to treat HIV and reduce the chances of giving HIV to their babies. It recently has been shown that a combination of drugs may be more effective than ZDV alone. This study tests the effectiveness of combinations of ZDV, d4T, and 3TC.
NCT00001030
To compare the efficacy and safety of clarithromycin alone versus rifabutin alone versus the two drugs in combination for the prevention or delay of Mycobacterium avium Complex (MAC) bacteremia or disseminated MAC disease. To compare other parameters such as survival, toxicity, and quality of life among the three treatment arms. To obtain information on the incidence and clinical grade of targeted gynecologic conditions. Persons with advanced stages of HIV are considered to be at particular risk for developing disseminated MAC disease. The development of an effective regimen for the prevention of disseminated MAC disease may be of substantial benefit in altering the morbidity and possibly the mortality associated with this disease and its treatment.
NCT00050895
With new strategies and drugs available, many different regimens exist for the treatment of HIV. The purpose of this study is to compare three different anti-HIV drug regimens as first-time treatments for HIV infection.
NCT00096694
Oral contraceptives (OCs) are not a good option for some HIV infected women because of the potential for drug interactions between OCs and anti-HIV drugs; additionally, OCs may increase the risk of transmitting HIV to sexual partners. Levonorgestrel is commonly prescribed as part of a combination OC. An intrauterine device (IUD) is a device inserted in a woman's uterus to prevent pregnancy. The purpose of this study is to determine the effect of a levonorgestrel-releasing IUD on the amount of HIV present in an HIV infected woman's cervix after 4 weeks of IUD use. Study hypothesis: There will be no increase in genital tract HIV RNA and DNA after placement of the levonorgestrel IUD.
NCT00027339
Because people infected with HIV strains that are resistant to anti-HIV drugs have fewer effective treatment options, selecting an effective anti-HIV drug combination is difficult. A combination of protease inhibitors (PIs), when added to a patient's current anti-HIV therapy, may decrease viral load and increase drug activity. Tests that measure drug levels in the blood and tests to evaluate the drug resistance of HIV may also be helpful in choosing the best anti-HIV drug combination for a patient. This study will determine whether using these tests to choose a drug combination and adding PIs to that combination will improve the patient's response to anti-HIV therapy.
NCT00031044
Even though powerful anti-HIV drug combinations have been successful in patients with little or no prior anti-HIV therapy, studies have shown that these treatments are less effective in patients who have been treated with nucleoside analogues. This study will test the safety and effectiveness of adding one or two new drugs to a personalized anti-HIV regimen for patients whose previous HIV treatments have failed.
