Active clinical trials for "HIV Infections"

Staphylococcus aureus is a bacteria that causes serious, often life threatening infections including pneumonia, wound, and bloodstream infections. Persons with AIDS are at high risk for S. aureus infections. They are also at high risk for nasal carriage of S. aureus. In fact, nasal carriage is a known risk factor for subsequent S. aureus infection. Topical mupirocin, an antibiotic when applied to the anterior nares, is a safe, effective way to eliminate S. aureus colonization. Some studies have shown that mupirocin can also decrease the risk of S. aureus infection, but many of those studies utilized historical controls and none were rigorously tested among AIDS patients over an extended period of time. The main purpose of this randomized, double-blinded, placebo controlled study is to determine if mupirocin can eliminate S. aureus nasal colonization in residents at PSI (inpatient, drug rehabilitation facility for AIDS patients in the Bronx.) PSI residents currently have a high incidence of S. aureus nasal colonization and infection. Nasal cultures followed by twice daily application of mupirocin vs. placebo for five days will be performed on a monthly basis for 8 months. the study will examine whether mupirocin decreases the incidence of S. aureus infections and prevents S. aureus nasal colonization. The study is important because it may show that mupirocin is an effective way to eliminate nasal colonization and prevent S. aureus infections in AIDS patients, among those at highest risk for serious S. aureus infection. Hypothesis: Monthly application of mupirocin will reduce nasal colonization with S.aureus

The purpose of this project is to determine the incidence of osteoporosis in the investigators' population of HIV-infected patients and to assess the efficacy and security of zoledronic acid, whose efficacy in post-menopausal women with high fracture risk treatment and in Paget's disease treatment has already been demonstrated.

Phase I test of concept study: In an attempt to induce new immunity to HIV-1 during untreated HIV-1 infection the investigators have identified relatively immune silent immune subdominant HLA-A2-restricted HIV-1 CTL epitopes that fit individuals with the HLA-A2 tissue type (about 50% of peoples in Denmark). Immunising with these conserved epitopes could induce new immunity and lower viral load so the patient will live longer before AIDS or Antiviral medicine and a lower viral load will limit spread in the population. As adjuvants the investigators used patients' own autologous Dendritic Cells generated from blood cells in vitro. 12 healthy male HIV-1 infected not in therapy individuals were used for this therapeutic vaccination and tested for safety and induction of new cellular CD8 and CD4 T-cell immunity.

The purpose of this study is to evaluate the antiviral activity as measured by the change in viral load from baseline in the 14 days following initiation of treatment with 4 different dose regimens of TMC310911 co-administered with ritonavir.

This study aims to verify the persistent control of the virus replication at 48 weeks after the simplification to tenofovir + emtricitabine + raltegravir or to lamivudine+abacavir+raltegravir in patients with optimal virological suppression without any virological failure to previous combined antiretroviral therapies needing a therapeutic switch for toxicity related issues or adverse events.

This study was a randomized strategy trial conducted among women who received highly active antiretroviral therapy (HAART) during pregnancy for purposes of prevention of mother-to-child transmission (PMTCT) of HIV but did not otherwise meet criteria to initiate HAART for their own health. The study was designed to determine whether continuation of HAART after delivery or other pregnancy outcome reduced morbidity and mortality compared to discontinuation and re-initiation of HAART when protocol specified criteria were met.

The purpose of this study is to determine the antiviral activity, safety and tolerability of 14 days of different doses of TMC114 to treat HIV-1 positive patients whose condition is failing on a current treatment regimen that includes a protease inhibitor (PI) (a medication used to reduce the amount of HIV virus in the blood).To be considered for the study, patients must have a documented resistance to at least 2 of the current PIs. Pharmacokinetics and pharmacodynamics of TMC114 will also be assessed.

This study will investigate the safety and efficacy of raltegravir as a therapy for HIV-infected patients failing current therapy with 3-class antiviral resistance.

Human immunodeficiency virus (HIV)-1 infected participants receiving long-term therapy with lamivudine or emtricitabine (nucleoside reverse transcriptase inhibitors [NRTIs]) are at risk for the development of a mutation at position M184 on the HIV reverse transcriptase gene. This mutation confers resistance to both drugs (>100 fold increase in the concentration of drug producing 50% inhibition [IC50]). In-vitro studies with elvucitabine have shown that HIV-1 isolates with the M184V mutation show only a 10-fold increase in IC50 as compared to wild type HIV-1. Alexion Pharmaceuticals Inc. intention is to demonstrate that 10 milligrams (mg) of elvucitabine, administered once per day for 14 days with continued background anti-HIV-1 medications, will demonstrate a fall in HIV-1 ribonucleic acid (RNA) plasma levels, as compared to baseline. The data from this study will guide dosing in future long-term studies in HIV-1 infected participants with the M184V mutation.

This study will test whether a vaccination schedule of experimental HIV vaccines is safe and whether it causes side effects in healthy adult volunteers. It will also compare the effects of vaccine injected into the muscle (intramuscular), just under the skin (subcutaneous), or into the skin (intradermal) and will monitor the social impact of being in an HIV vaccine study. Healthy volunteers 18-50 years old may be eligible for this 42-week study. Participants are screened for antibodies to adenovirus, a common virus that causes upper respiratory infections, such as the common cold. Half of the participants selected will be positive and half will be negative for antibodies to the virus. The vaccines used in this study are known as VRC-HIVDNA016-00-VP (called the "DNA vaccine") and VRC-HIVADV014-00-VP (called the "rAd5 vaccine"). The DNA vaccine codes for four HIV proteins. The rAd5 vaccine is made using an adenovirus that has been modified to contain DNA that codes for three HIV proteins. These vaccines cannot cause HIV or adenoviral infections. Participants are randomly assigned to one of six possible vaccination schedules that include "prime" and "booster" vaccines. The first vaccinations prime the immune system and the immune response is then boosted later. The groups differ in the type of vaccines given (DNA vaccine prime with rAd5 booster or rAd5 prime with rAd5 booster), in how the vaccine is administered (intramuscularly, subcutaneously or intradermally) and in the schedule of administration. All shots are given in the upper arm. Subjects fill out a diary card at home for 5 days after each vaccination, recording their temperature and any symptoms. The cards are turned in to the clinic at the first visit after all 5 days are completed. Subjects return for clinic visits about 3 days after each prime vaccination and either come in or call the clinic about 7 days after the injection. They call a study nurse 1 or 2 days after the booster vaccination. Participants have 15-20 clinic visits during the course of the study, depending on their vaccination schedule. At each visit, they are checked for health changes or problems, asked how they are feeling and if they have taken any medications or other treatments, including over-the-counter medicines, herbal supplements, etc. Blood and urine samples are collected at some visits. Subjects are tested for HIV several times and asked questions about their sexual behavior and drug use. Throughout the stu...