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.
To determine the maximum tolerated dose (MTD) of WR 6026 in HIV-infected patients. To determine whether any unexpected toxicities are caused by WR 6026 in HIV-infected patients. To determine whether there is additional toxicity when WR 6026 is given for 21 days rather than 14 days. To further investigate the pharmacokinetics and pharmacodynamics of WR 6026, and in particular to examine potential correlations between the area under the concentration-time curve and methemoglobinemia or other toxicities. In recent animal studies, WR 6026 demonstrated inhibitory activity against Pneumocystis carinii pneumonia (PCP). This study will assess the safety and tolerance of this drug in HIV-infected patients who do not have PCP.
Part I: To determine the pharmacokinetic dose for atevirdine mesylate ( U-87201E ) when used in combination with zidovudine ( AZT ). To determine the pharmacokinetic profiles of U-87201E and AZT over a 12-week period. Part II: To determine whether or not decreased viral susceptibility to U-87201E develops when the drug is administered concomitantly with AZT for 12 weeks. Part III: To evaluate the pharmacokinetic effects of ddI/AZT/U-87201E therapy and to assess changes in viral susceptibility to U-87201E. Interest exists in the development of antiretroviral agents that possess different mechanisms of action from nucleoside analogs such as AZT. U-87201E is a non-nucleoside reverse transcriptase (RT) inhibitor that has demonstrated activity against HIV-1; however, an emerging characteristic of non-nucleoside RT inhibitors is the development of rapid resistance to HIV isolates. Whether this resistance can be prevented in the presence of nucleoside analogs such as AZT and ddI has yet to be determined.
To determine the safety and tolerance of alvircept sudotox (sCD4-PE40) given at various dosing intervals and concentrations. To determine whether frequent dosing alters immunogenicity or toxicity. To obtain preliminary data to ascertain whether sCD4-PE40 has activity against HIV in human subjects. To determine whether there is any additive toxicity with combined use of sCD4-PE40 and zidovudine (AZT). There is some evidence that AZT and sCD4-PE40, an experimental drug with anti-HIV activity previously demonstrated in vitro, may produce increased benefit when used in combination in HIV-infected patients.
To compare the efficacy of fluconazole versus placebo for the prevention of Candida esophagitis and vaginal/oropharyngeal candidiasis, including a comparison of the development of clinical resistance. Fluconazole has been shown to be effective in preventing or suppressing candidiasis in HIV-negative women. An increasing likelihood of oral and esophageal candidiasis in conjunction with progressive immunosuppression raises the question of the potential role of prophylactic antifungal therapy in high-risk persons.
To determine the reactivity and safety of HIV-1 recombinant envelope glycoprotein gp160. To determine the immunogenicity of gp160. Although recent advances have been made in antiviral therapy against AIDS, there is currently no cure. It is likely that ultimate control of the disease will depend on the development of safe and effective vaccines against HIV.
Primary: To determine in healthy volunteers whether priming with a vaccinia HIV-1 gp160 envelope gene recombinant vaccine (HIVAC-1e) followed by boosting with one of two subunit recombinant HIV-1 envelope vaccines (Env 2-3 and gp120) provides enhanced immunogenicity compared to vaccination with the gp120 subunit vaccine alone. (Per 10/01/92 amendment, boosts with VaxSyn (gp160) were eliminated.) To evaluate the immunogenicity of one versus two priming doses of HIVAC-1e prior to a boost with gp120. To compare the relative immunogenicity of the three subunit vaccines when administered as boosters. Secondary: To examine the safety of administering the individual subunit vaccines in combination with HIVAC-1e and the safety of administering the gp120 subunit vaccine alone. In a previous study of candidate HIV vaccines, the evidence suggested that administration of a booster vaccination with a different vaccine preparation may produce a better immune response than administration of HIVAC-1e vaccine alone.
Primary: To evaluate the rate of development of resistance to nevirapine in HIV-1 infected individuals. To evaluate safety of nevirapine in HIV-1 infected individuals with CD4 counts greater than or equal to 500 cells/mm3. Secondary: To evaluate the effect of nevirapine on surrogate markers. The anti-HIV agent nevirapine is associated with rapid emergence of resistance when administered alone or in combination with zidovudine to HIV-infected patients with CD4 counts <= 400 cells/mm3. In persons with less advanced HIV disease and less viral burden, the emergence of resistance may be delayed, thus permitting evaluation for beneficial effect in a population where there is currently no established therapy.
To compare the safety and efficacy of two dosage regimens (daily and thrice-weekly) of sulfamethoxazole/trimethoprim (SMX/TMP; TMS) in the prevention of Pneumocystis carinii pneumonia (PCP) in high-risk HIV-infected patients. Previous tests have shown that SMX/TMP given daily is effective in preventing recurrence of PCP and may be effective in preventing PCP in patients who have never developed it. Because SMX/TMP can cause side effects, this study will attempt to determine the safest and most effective dose of this combination.
To evaluate in healthy volunteers the safety and immune response to 200 mcg gp120 candidate vaccine in MF59 emulsion without MTP-PE at 0, 1 and 6 months. Preliminary evaluations of two dose levels of gp120 administered to volunteers in protocol VEU 007A indicate that a gp120 dose of potentially greater immunogenicity may be of interest.
Primary: To determine the efficacy of early treatment with zidovudine (AZT) in HIV-infected asymptomatic infants. To determine the safety and tolerance of AZT in this patient population. Secondary: To compare the virologic and immunologic parameters between the treatment groups. To determine the efficacy of AZT as an early treatment to prevent development of CD4+ cell depletion in HIV-infected asymptomatic infants. AZT is currently indicated for primary treatment in children with HIV-associated signs and symptoms and for those with significant immunodeficiency. This study will attempt to determine whether early treatment with AZT prevents the development of symptoms in HIV-infected infants who are asymptomatic.