View clinical trials related to HIV Infections.
Filter by:The purpose of this study is to see if it is safe to give Varivax to HIV-positive children and whether it protects children from infection. Varivax is a vaccine against varicella zoster virus (VZV), the virus that causes chickenpox (varicella) and shingles (zoster). VZV can cause many serious complications in HIV-infected children. Varivax is a VZV vaccine that has been approved for use in healthy children. More research is needed to find out how this vaccine will affect HIV-infected children.
To compare the safety and efficacy of sevirumab (MSL 109; Protovir), human anti-cytomegalovirus (CMV) monoclonal antibody, plus active primary treatment versus placebo plus active primary treatment in AIDS patients with newly diagnosed and relapsed CMV retinitis. Ganciclovir and foscarnet are used for treatment of CMV retinitis, but cause hematologic toxicity and nephrotoxicity, respectively. Despite continued maintenance therapy with these drugs, relapse occurs in 85 percent of patients within 4 months. Studies suggest that MSL 109, a human monoclonal antibody, when given with either ganciclovir or foscarnet, may increase initial response and prolong time to progression in patients with CMV retinitis.
To determine the safety and tolerance of methotrexate in HIV-infected patients. To determine the dose effective in modulating key markers of immune activation. To determine a dose suitable for Phase II or III evaluation in HIV-infected patients. In HIV infection, complete immunological clearance of the foreign antigen does not occur, resulting in chronic immune activation. Because chronic immune activation may contribute to disease progression in HIV infection, immunomodulators may have therapeutic value in early HIV disease prior to development of opportunistic infections. The clinical benefits of methotrexate appear to derive from an anti-inflammatory effect; thus, it may reduce the state of chronic immune activation.
To compare the safety, toxicity, and tolerance of two doses of ribavirin in combination with didanosine (ddI) to HIV-infected children. To determine the toxicity of ddI/ribavirin and compare it to the expected toxicity of ddI monotherapy. To determine the effect of concurrent ribavirin on the pharmacokinetics of ddI. To determine a dosage of ribavirin that would be suitable for a Phase II/III evaluation of ddI/ribavirin. Ribavirin, a broad spectrum antiviral agent, may enhance the antiretroviral activity of didanosine ( ddI ) without a concomitant increase in toxicity. Ribavirin alters the intracellular metabolism of ddI, enhancing the antiretroviral activity of the active form of ddI.
To determine the safety and immunogenicity of rgp120/HIV-1SF2 combined with MF59 adjuvant emulsion versus MF59 alone in HIV-negative volunteers. One approach to improve the immunogenicity of an HIV-1 subunit protein vaccine is to combine the immunogen with an adjuvant.
To elucidate the relationship between virologic risk factors and immunologic and clinical progression in patients receiving monotherapy in protocol ACTG 175, and to compare new treatment regimens with combinations of reverse transcriptase inhibitors in long-term recipients of monotherapy. Specifically, to determine, in patients who have been taking zidovudine (AZT) alone for a long time, whether it is beneficial to add lamivudine (3TC) to AZT or to switch to d4T alone, and also to determine, in patients who have been taking didanosine (ddI) alone for a long time, whether it is beneficial to add AZT or AZT/3TC to ddI. Characteristics of virus replication, pathogenicity, and resistance are thought to determine the durability of virologic and clinical response to nucleoside reverse transcriptase inhibitors. Previous results of ACTG 175 suggest that either a switch to ddI or addition of ddI in patients receiving AZT results in better clinical, virologic, and CD4 cell response compared to continuation of AZT alone.
To determine the levels of zidovudine triphosphate ( AZT-TP ) in maternal and fetal cord blood mononuclear cells. To determine the ratio of AZT-TP to endogenous nucleoside triphosphate levels in maternal and fetal cells. To determine the extent of drug transfer through the feto/placental unit.
To assess whether HIV-infected infants who receive a heptavalent pneumococcal conjugate vaccine have more local reactions at the site of injection and systemic reactions than placebo subjects. To assess whether this vaccine is more immunogenic than placebo following the third vaccination. Children with HIV infection are at increased risk for invasive pneumococcal infection, particularly bacteremia. A large proportion of pneumococcal disease is caused by a limited number of serotypes. The maximum number of pneumococcal serotypes that can be included in a new conjugate vaccine is felt to be limited by the amount of carrier protein. A heptavalent pneumococcal conjugate vaccine has been developed that consists of pneumococcal capsular saccharides from serotypes 4, 6B, 9V, 14, 18C, 19F, and 23F bound to a diphtheria toxin mutant carrier protein.
To identify patterns of zidovudine ( AZT ) susceptibility among mother/infant pairs with perinatal HIV transmission. Most HIV-infected infants acquire their disease via perinatal transmission. Since transmission of HIV-resistant strains to infants could alter the course of disease and response to currently recommended treatment, a study to assess the patterns of AZT susceptibility among mother/infant pairs with perinatal transmission is essential to delineate future therapeutic strategies.
To evaluate the safety, tolerance, pharmacokinetics, and antiviral activity of human anti-HIV immune serum globulin ( HIVIG ) at three dosage levels in HIV-infected children. Passive antibody therapy has been used with limited success in treating advanced HIV disease in adults. HIVIG is manufactured from HIV antibody-rich plasma taken from asymptomatic donors. It is hypothesized that HIVIG will decrease the viral burden of moderately advanced HIV-positive children.