View clinical trials related to HIV Infections.
Filter by:This study will evaluate whether interleukin-7 (IL-7) a drug similar to the natural IL-7 protein produced by the body, is safe to use in people infected with HIV. IL-7 is important in immune system function. In humans, it can extend the life of immune cells called T-cells and increase their function and maturation; in mice, it can speed up immune system recovery following chemotherapy of transplantation; and in monkeys, it can make T-cells increase in numbers. If this study shows that IL-7 is safe, other trials will determine if it can improve the numbers or function of T-cells in HIV-infected people. Patients 18 years of age and older with HIV infection who have been taking anti-HIV medications for at least 12 months, whose CD4 counts are at least 100 cells/microliter, and whose viral load is no more than 50,000 copies/milliliter may be eligible for this study. Candidates are screened with a physical examination, blood and urine tests, including a blood test for HLA type (a genetic test of markers of the immune system), chest x-ray, electrocardiogram, and ultrasound of the spleen. Participants undergo the following tests and procedures during 9 visits, as follows: Pre-entry visit - Brief physical examination, including examination of lymph nodes and spleen. - Medical history, including questions about current and past medications. - Urine pregnancy test for women who are able to become pregnant. - Blood draw for viral load, immune responses, and other routine safety tests. Entry visit - Complete physical examination, including examination of lymph nodes and spleen. - Routine urine test and urine pregnancy test for women who are able to become pregnant. - Blood draw for viral load, immune responses, and other routine safety tests. - IL-7 dosing. Participants are randomly assigned to receive one of five doses of IL-7 (3, 10, 30, 60 or 100 micrograms per kilogram of body weight) or placebo (a salt solution that does not contain IL-7). The dose may be given in one or more injections, with higher doses possibly requiring as many as seven or eight injections. The injections are given subcutaneously (under the skin), usually in the arm or leg. After the injection, patients are monitored closely for 12 hours for skin or allergic reactions. Blood is drawn before the injection and again at 0.5, 1, 1.5, 2, 2.5, 4, 8 and 12 hours after the injection to check blood levels of the study medication. Follow-up visits Patients come to the clinic 7 times during follow-up-every day for the first 4 days after the injection, then at 14 days, 4 weeks, and 8 weeks after the injection. At most study visits, patients have the following procedures: - Brief physical examination, including examination of lymph nodes and spleen. - Routine urine test and urine pregnancy test for women who are able to become pregnant. - Blood draw for viral load, immune responses, and other routine safety tests. - Blood test to measure the amount of study medication in the blood 1, 2, and 3 days after the injection - Electrocardiogram 1 day after the injection
This study will investigate the safety and efficacy of different doses of an investigational drug (MK0518) as a therapy for HIV-infected patients failing current antiretroviral therapies.
This 2 arm study will evaluate the efficacy, safety and tolerability of saquinavir/ritonavir or lopinavir/ritonavir in combination with emtricitabine/tenofovir in patients with human immunodeficiency virus type 1 (HIV-1) infection who have received no prior HIV treatment. Patients will be randomized to receive either saquinavir/ritonavir 1000/100mg oral (po) twice daily (bid) + emtricitabine/tenofovir 200/300mg po once daily (qd), or lopinavir/ritonavir 400/100mg po bid + emtricitabine/tenofovir 200/300mg po qd. The anticipated time on study treatment is 3-12 months, and the target sample size is 100-500 individuals.
The purpose of this study is to test an interactive multimedia informed consent (iMIC) computer program to see if the program can generate a consent form that potential participants in an HIV trial can understand. This study will also determine if these participants prefer the computer-generated consent form and associated interactive tools to a standard consent form written by researchers. Study hypothesis: 1) Participants who receive information about clinical trials from iMIC Consent Tutorials will answer more questions about the trial correctly than participants who receive information about clinical trials from standard paper consent forms. 2) Participants will rate the iMIC Consent Tutorials as having better usability and user satisfaction than standard paper consent forms.
This study is a 96-week study designed to evaluate the safety and efficacy of GW873140 in combination with Combivir in HIV infected, untreated subjects.
This is a long-term follow-up study of people who are identified during acute or recent HIV infection and are being followed at clinical research sites associated with the Acute HIV Infection and Early Disease Research Program (AIEDRP). The purpose of this study is to collect data on the immunological and virologic responses that occur early in the course of HIV infection in treatment-naive and treatment-experienced HIV infected adults. Study hypothesis: This study will examine the immunological responses that occur early in the course of HIV infection in treated and untreated individuals. The long-term follow-up of these subjects will help identify host immunological and genetic factors along with therapeutic strategies associated with control of viremia and delayed disease progression. In addition, this cohort will provide the recruiting mechanism to support future trials of therapy to restore immune function. Furthermore, this cohort will provide a population suitable to monitoring changing patterns in the transmission of drug resistant viral strains while also evaluating ongoing behavioral risk factors associated with HIV transmission.
This is Phase II of a three stage project whose overall goals are to develop viable community-based HIV prevention interventions and to form and maintain the necessary community collaborations to support such Adolescent Trials Network (ATN) research activities. This phase will describe specific locations within high-risk areas where youth, ages 12-24, spend time. HIV risk behaviors, social networking patterns and HIV prevalence among youth at these venues will be assessed by administering anonymous computerized interviews to eligible and willing youth. This information will be shared with community partners during scheduled working group meetings.
Identifying young people with early HIV-1 infection is important for increasing linkage to care, for behavioral counseling, and for enrolling individuals into programs that can provide effective interventions to disease progression and improve outcome. This study will develop and evaluate a saliva-based sensitive/less sensitive (S/LS) assay for differentiating persons with recent HIV-1 infection (less than 133 days) from those with established HIV-1 infection.
Risk behaviors and their associated adverse health outcomes are becoming increasingly problematic among HIV-infected youth. This study is being conducted to test whether a brief motivational enhancement (ME) intervention will help reduce health risk behaviors (drug and alcohol use, sexual risk behavior, poor adherence to medications) among HIV+ youth.
Men's and women's bodies may process anti-HIV drugs differently. The purpose of this study is to determine the differences in blood levels of soft gel capsules and tablets of lopinavir/ritonavir (LPV/r) in HIV infected men and women.