View clinical trials related to Infections.
Filter by: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.
To study the tolerance and safety of increasing doses of AL-721 in patients with persistent generalized lymphadenopathy (PGL) and symptomatic HIV infection, and to obtain preliminary information on the effectiveness of AL-721 against the human immunodeficiency virus (HIV) in HIV-infected persons with PGL and symptomatic HIV infection. Although zidovudine (AZT) prolongs life in certain AIDS patients, it is not a cure for AIDS and it also has toxic effects in many patients. Therefore, it is necessary to test other drugs in HIV-infected patients. AL-721 is a mixture of lipids (fats) extracted from egg yolks. Laboratory tests suggest that it might inhibit the infectivity of the HIV. AL-721 has been tried so far in a few patients for short periods of time and has been found to be well tolerated.
To compare the effect of zidovudine (AZT) given alone with the combination of AZT and acyclovir (ACV) on the human immunodeficiency virus (HIV) in persons infected with HIV, and to study the pharmacokinetics (how fast AZT reaches certain levels in blood and how long it remains), safety, and effectiveness of AZT given alone and in combination with ACV in treating HIV-infected patients. Other studies have shown that AZT offers potential benefits to specific AIDS patients when given over long time periods, and experiments in vitro (in the test tube) suggest that ACV may stimulate the action of AZT against HIV. It is necessary to obtain information on how these drugs perform in HIV-infected humans.
AMENDED: To investigate whether subcutaneous (SC) injection of IL-2 produces biological responses which parallel those observed with IV dosing. Original design: To evaluate the short-term effects of combined administration of zidovudine (AZT) and increasing doses of recombinant interleukin-2 (aldesleukin; IL-2) in patients infected with HIV, who have lymphadenopathy, but who are otherwise asymptomatic (no other symptoms). The first phase of this clinical trial will establish maximum tolerated dose ( MTD ). How quickly the drugs get into the blood and how long they remain there (pharmacokinetics) will also be studied at each dose as well as the effect on HIV. Since AZT has no effect on cells that contain inactive virus (latently infected cells) and these cells may act as viral reservoirs, that a second agent that can destroy these infected cells would be useful in combination with AZT. The different activities of AZT and IL-2, as well as the non-overlapping nature of their mechanisms of action and toxicity, increase the theoretical benefits of combining AZT, a drug which has clinically significant activity in HIV-related disease but cannot eliminate infected cells, with IL-2, a drug which may enhance anti-HIV immunity, destroy chronically infected cells, and allow immune recognition of latently infected cells.
To study the toxicity, pharmacokinetics, and antiretroviral effectiveness of combined oral zidovudine (AZT) and intermittent intravenous foscarnet therapy in stable AIDS or AIDS related complex (ARC) patients who have already received AZT for 8 - 52 weeks. It is hypothesized that the maximum AZT antiretroviral effect, which occurs at 8 weeks of therapy, will be enhanced by 2 weeks of foscarnet treatment, given at the same time by intermittent intravenous infusion. In addition, the further lowering of serum p24 antigen concentration that should occur during combined therapy might continue when oral AZT therapy is continued without foscarnet.
To examine the pharmacokinetics (blood levels) and bioavailability of zidovudine (AZT) given to patients with HIV infection and chronic liver disease. The specific aim of the study is to provide data permitting the development of guidelines for use of AZT in patients with mild, moderate, or severe liver disease. AZT is the only antiviral agent that has been shown to be effective in patients with severe HIV infection. However, AZT is largely eliminated from the body through a biochemical reaction that takes place in the liver, and it is possible that patients with underlying liver disease may have altered AZT pharmacokinetics and may metabolize AZT differently, with the result that they are susceptible to an increased risk of serious drug toxicity. This study will examine the pharmacokinetics, elimination, and metabolism of AZT in patients with liver disease. Guidelines developed from the data will be helpful in managing AZT treatment of these HIV-infected persons and will indicate whether the dose of AZT administered should be adjusted to compensate for any changes in its bioavailability and/or pharmacokinetics.
To obtain information about the long-term safety and toxicity of zidovudine (AZT). To ascertain whether interruption/resumption at a lower dosage is the optimal management of AZT toxicity. Because of the high incidence of toxicity and the relatively short-term follow-up of the patients due to the early ending of the Phase II placebo-controlled experiment, it is valuable to continue to get information on the long-term toxicity of AZT.
To determine how much of a dose is absorbed by the body when zalcitabine ( dideoxycytidine; ddC ) is given orally and how long the drug stays in the body after absorption or intravenous (IV) administration. Laboratory tests have shown that ddC is effective in stopping the growth of the HIV in test tubes. The study will reveal the pharmacokinetic (blood levels) properties of this new drug and how long the drug remains in the body at each of six doses. This should be useful background information and should allow a simple and efficient comparative study of any new oral formulation, such as a tablet or capsule, since dose-related problems will already be known.
To evaluate the clinical and laboratory toxicity of ganciclovir (GCV) and zidovudine (AZT) when given in combination. Because recent information has shown AZT to be useful in treating AIDS, it is assumed that most patients with AIDS, and probably with AIDS related complex (ARC), will be receiving AZT. Because AZT is reported not to be active against cytomegalovirus (CMV), it is important to see if it is useful to give GCV along with AZT.
To determine whether taking zidovudine (AZT) will change the natural course of HIV infection in patients with AIDS-associated Kaposi's sarcoma (KS) and whether administering AZT at a similar dose but at different intervals will reduce toxicity in a more manageable treatment plan. Patients infected with AIDS can benefit from therapy with an effective anti-AIDS virus agent. AZT is a drug that is effective in inhibiting the effects of HIV infection. The study will show whether toxicity of AZT can be reduced in a more manageable treatment plan, and whether AZT therapy will delay the development of opportunistic infections and/or KS lesions.