Active clinical trials for "HIV Infections"

To determine the safety and tolerance of various combinations of zidovudine (AZT) and didanosine (ddI) administered concurrently. To determine the pharmacokinetics of concurrent AZT and ddI administered orally. To evaluate the antiviral, immunologic and virologic effects of AZT and ddI administered concurrently.

To determine the safety and tolerance of 3 dosage levels of human anti-cytomegalovirus (CMV) monoclonal antibody (SDZ MSL-109) when administered once every 2 weeks for a total of 8 doses during the maintenance phase of ganciclovir (DHPG) therapy to patients with AIDS and documented evidence of CMV retinitis. In addition for those patients with positive CMV cultures upon entry into this trial a preliminary attempt will be made to assess the potential in vivo antiviral effects of the concomitant administration of DHPG and SDZ MSL-109.

The objective of this double-blind placebo-controlled study is to evaluate the effect of Isoprinosine in a group of homogenous male volunteers who present with immunologic defects relative to: Comparison of total helper and suppressor T-cell number between the groups. Comparison of the phytohemagglutinins (PHA) and concanavalin A lymphoproliferative response and natural killer (NK) cell activity between the groups. Determination of the clinical course of the volunteers after discontinuance of Isoprinosine.

To determine the safety and efficacy of erythropoietin administered to AIDS patients with anemia secondary to their disease and/or concomitant zidovudine (AZT) therapy.

To determine the safety and efficacy of erythropoietin (r-HUEPO) administered to AIDS patients with anemia secondary to their disease and/or concomitant zidovudine (AZT) therapy.

To determine the safety and efficacy of erythropoietin administered subcutaneously to AIDS patients with anemia secondary to their disease and/or concomitant zidovudine (AZT) therapy. Efficacy will be assessed by correction of anemia and decrease in transfusion requirements.

To assess the dose-related antiviral effects of SC-48334 and zidovudine (AZT) administered in combination or individually in HIV-1 positive patients with 200 - 500 CD4+ cells/mm3. To determine the safety of escalating doses of SC-48334 when administered in combination with any of three doses of AZT to symptomatic HIV-1 positive patients with 200 - 500 CD4+ cells/mm3, and to assess the pharmacokinetics of the two drugs, given separately and in combination.

Primary: To determine whether the combination of zidovudine/zalcitabine/interferon alfa-n1 (Retrovir/HIVID/Wellferon) can produce complete responses (i.e., CD4 counts return to >= 800 cells/mm3 for more than 24 weeks) in patients with virus sensitive to all three agents. To determine the antiviral effect of the combination therapies as evidenced by measures of quantitative viral load performed at select study centers only. Secondary: To determine the effectiveness of Retrovir/HIVID and Retrovir/HIVID/Wellferon in maintaining or increasing CD4 counts and preventing disease progression as evidenced by the development of an AIDS-defining indicator disease. To determine the effect of these regimens on secondary measures of clinical status (e.g., performance score, weight change, and secondary infections) and on measures of virologic activity such as serum p24 antigen. To assess the safety and tolerance of these regimens.

To investigate the safety and tolerance of an increasing number of infusions per week of alvircept sudotox ( sCD4-PE40; soluble CD4-Pseudomonas exotoxin ) at a fixed dose when administered to HIV-1-infected individuals. To investigate the effect of sCD4-PE40 on the following parameters: T lymphocyte subsets, plasma HIV RNA and cellular HIV proviral DNA in PBMC and CD4 cells, p24 levels, serum beta-2 microglobulin, and neopterin levels.

To evaluate the efficacy and safety of two doses of azithromycin given chronically for the treatment of Mycobacterium avium bacteremia in AIDS patients.