View clinical trials related to HIV Infections.
Filter by:To determine the safety and tolerability of hydroxyurea at two doses alone and in combination with didanosine (ddI). To compare the short term antiviral effect of ddI monotherapy versus hydroxyurea plus ddI, as measured by plasma RNA levels at 8 weeks of therapy. [AS PER AMENDMENT 10/1/97: Accrual to arms involving hydroxyurea alone has been closed.] Current antiviral therapies for HIV-1 are limited by a few choices, and the lack of sustained clinical benefit from the drugs. The mechanisms that account for the lack of prolonged inhibition of viral replication by these agents are not fully understood. The activity of RT inhibitors might be potentiated by inhibiting host cellular enzymes essential for efficient HIV reverse transcription. Based on this information, comparisons of the antiviral effects of ddI monotherapy and hydroxyurea plus ddI, with the cellular enzyme ribonucleotide reductase as a potential target, should be done.
The purpose of this study is to see if it is safe and effective to give isotretinoin to HIV-infected women with cervical tumors to prevent these tumors from becoming cancerous. Cervical tumors are found in both HIV-infected and HIV-negative women. However, HIV-infected women are at a greater risk, and often their tumors become cancerous more quickly than those in HIV-negative women. Isotretinoin may be able to prevent this from happening. However, since these tumors tend to disappear over time, many doctors are hesitant to give their patients isotretinoin since this drug causes birth defects. This study looks at whether it is better to treat cervical tumors in HIV-infected women or to wait and see if they will disappear by themselves.
To evaluate, in HIV-negative volunteers, the safety and immunogenicity of ALVAC-HIV MN120TMGNP (vCP300) followed by or combined with boosting using rgp120/HIV-1SF2. To compare ALVAC-HIV vCP300 with ALVAC-RG rabies glycoprotein (vCP65) as a control. To evaluate an accelerated immunization schedule at 0, 1, 3, and 6 months versus 0, 1, 6, and 9 months. The combination of a live recombinant primer followed by a subunit boost has the potential to induce not only cytotoxic T lymphocytes but also neutralizing antibody.
To determine the safety of stem cell harvesting after administration of filgrastim ( G-CSF ) to mobilize bone marrow stem cells into the peripheral blood in patients at various stages of HIV-1 infection as well as in HIV-negative volunteers. To determine the surface phenotypic and functional characteristics as well as the viral load in the stem cells obtained following this procedure.
To determine the influence of virus load, CD4 count, biologic phenotype, and presence of symptomatic disease on the response of HIV-infected patients to a new therapeutic regimen. PER AMENDMENT 8/27/96: To extend the availability of currently assigned ACTG 303 treatment for 6 months.
To determine drug efficacy and safety in HIV-infected patients treated with zidovudine ( AZT ) versus stavudine ( d4T ) versus both drugs. Also, to compare short- and long-term changes in magnitude of HIV RNA over time. Asymptomatic patients with CD4 counts over 300 cells/mm3 are more likely to tolerate any of the nucleoside analogs. d4T, with a favorable toxicity profile and demonstrated anti-HIV activity in previous studies, provides an additional therapeutic option.
To compare the efficacy of lamivudine (3TC) and zidovudine (AZT) in combination versus the better of didanosine (ddI) monotherapy or ddI/AZT combination, in symptomatic HIV-1 infected children who received less than 56 days of prior antiretroviral therapy. To evaluate the safety and tolerance of 3TC/AZT in this patient population. To determine other measures of diseases in response to the study regimens. Currently, none of the potential treatments for HIV-1 infection has proven to be both nontoxic and effective in long-term use. However, previous studies in both adults and children have shown that 3TC combined with AZT reduced HIV load in blood and increased white blood cells. Additionally, 3TC has demonstrated a favorable safety profile.
To assess response and toxicity in patients with fluconazole-resistant oral candidiasis ( thrush ) when given initial induction with amphotericin B oral suspension. Experience with amphotericin B oral suspension for drug-sensitive thrush in HIV-infected patients is limited but encouraging.
To compare the effect of stavudine (d4T) alone or with zidovudine (AZT) versus didanosine (ddI) alone or with AZT on CD4 counts, HIV RNA levels, and viral load in HIV-infected patients [AS PER AMENDMENT 3/21/97: To compare the effects of d4T alone versus ddI alone versus AZT plus ddI]. To compare the safety of d4T/AZT. AS PER AMENDMENT 3/21/97: To evaluate the pharmacokinetic interactions of AZT and d4T both at an extracellular and intracellular level. Although AZT and ddI can delay the advancement of HIV disease, the benefit of either of these drugs has proven to be only temporary. d4T, a new nucleoside analog with a favorable toxicity profile and demonstrated activity against HIV, offers an additional therapeutic option. It is reasonably assumed that the benefit of an antiretroviral agent in terms of delaying clinical disease progression is directly related to its ability to achieve and sustain viral suppression; thus, this study measures effects on viral load and CD4 count.
To determine whether alternating oral ganciclovir with intravenous ( IV ) ganciclovir can prevent relapse of Cytomegalovirus ( CMV ) retinitis and improve quality of life in AIDS patients. A systemic treatment strategy for CMV retinitis is needed that will be effective yet convenient to administer, without the need for a permanent indwelling IV catheter. Although oral ganciclovir has been used as maintenance following induction with IV ganciclovir, patients with reactivation of disease must be reinduced IV. A fixed-schedule regimen in which oral and IV ganciclovir are alternated may prevent reactivation and progression of disease, as opposed to the current therapeutic strategy in which changes in therapy are event-driven. Also, the duration of intermittent IV therapy required to control disease may be short enough to eliminate the need for an indwelling catheter.