Active clinical trials for "HIV Infections"

People that are infected with HIV appear to be especially susceptible to the adverse effects of cigarette smoking. The purpose of this study is to determine if quitting smoking by using a specialized smoking cessation treatment can prevent one from developing accelerated lung damage, particularly emphysema.

A single tablet regimen (STR) of efavirenz, emtricitabine and tenofovir disoproxil fumarate (tenofovir DF) is the first complete HAART that is offered as one tablet once a day. The individual components of this HAART regimen have demonstrated efficacy and safety in HIV treatment-naive patients and offer simplification that in turn may increase adherence and improve clinical outcomes. This study aims to evaluate the effectiveness (efficacy, safety and tolerability) of a STR simplification strategy in patients on HAART who have achieved viral suppression in a real world clinical setting.

The purpose of this study is to test if being treated with darunavir/ritonavir (DRV/rtv) 800/100 mg daily is as effective as being treated with DRV/rtv 600/100 mg twice daily, in early antiretroviral (ARV)-experienced patients when given along with selected optimized background regimen (OBR).

This is a Phase IIIB, 48 Week, multicentre, randomized, open-label, parallel group study comparing the safety and efficacy of fosamprenavir plus ritonavir 1400mg/100mg once-daily to fosamprenavir plus ritonavir 700mg/100mg twice-daily, both administered with abacavir/lamivudine 600mg/300mg once-daily in antiretroviral-naive HIV-1 infected adults. This study utilizes a group-sequential design with two stages: 1) an interim 24 week cohort analysis of approximately 200 subjects and 2) if study continuation criteria are met at this interim analysis, further enrolment of an additional 528 subjects, followed over a minimum of 48 weeks. The objectives of the study are to demonstrate 1) non-inferior antiviral activity of fosamprenavir/ritonavir 1400mg/100mg QD compared to fosamprenavir/ritonavir 700mg/100mg BID and 2) a superior fasting non-HDL lipid profile in subjects receiving fosamprenavir/ritonavir 1400mg/100mg QD.

This study was designed to test the efficacy, safety, tolerability and durability of the antiviral response between atazanavir (ATV) + ritonavir (/r) + abacavir/lamivudine(ABC/3TC) Fixed dose combination (FDC) each administered once daily (QD) for 36 weeks followed by randomization to either a simplification regimen of ATV or continuation of ATV +/r for an additional 48 weeks, each in combination with ABC/3TC in antiretroviral (ART)-naive, HIV-1 infected, HLA-B*5701 negative subjects. All subjects who complete the 84-week study will be eligible to enter the treatment extension phase and continue for an additional 60 weeks. The purpose of this extension is to obtain longer term treatment data in subjects who have completed the 84-week study.

Vicriviroc (vye-kri-VYE-rock) is an investigational drug (not yet approved by Government Regulatory Authorities for commercial use) that belongs to a new class of drugs, called CCR5 receptor blockers. This group of drugs blocks one of the ways HIV enters T-cells (the cells that fight infection). Previous smaller studies in HIV treatment-experienced patients, have shown that vicriviroc is safe and effective. The purpose of this study is to confirm the previous findings in a larger phase 3 study over a 48-week period, and show that when taken in combination with other appropriate HIV drugs, vicriviroc can decrease the level of HIV (viral load) in the blood and that it is well tolerated.

The purpose of this study is to determine the safety and effectiveness of an anti-HIV drug regimen followed by treatment interruption in people recently infected with HIV. This study will also compare the effects of a treatment regimen including treatment interruption with a treatment plan based on clinical indicators.

A Pharmacokinetic study of once daily Efavirenz 400 mg versus 600 mg in Thai HIV-1 infected subjects.

This study will evaluate the safety of a new experimental drug, IL-7, in people with HIV infection. Animal studies have shown that IL-7 can improve the function and number of infection-fighting cells called T lymphocytes, or T cells. If this study shows that IL-7 is safe, additional studies will be done to see if it can improve the function or numbers of T-cells in HIV-infected persons. HIV-infected persons who have been receiving HAART therapy for at least 12 months before enrolling in the study and have been stable on this treatment for at least 3 months before enrollment may be eligible for this study. Participants have about 10 clinic visits over 3 months. They receive three injections of IL-7, one injection a week for 3 consecutive weeks. The injections are given as a shot under the skin in the arm or leg. On the day of each injection, the participant stays in the clinic for up to 8 hours or longer for observation and collection of blood samples. Three additional visits (one every 3 months) may be scheduled. During the study visits the following may be done: Medical history, physical examination, blood tests every visit. Electrocardiogram (EKG) at study days 0 (day of first dose), 1, 7 (day of second dose), 14 (day of third dose) and 21. Chest x-ray study on day 21. Blood sample collections at frequent intervals during the first 96 hours after the first dose administration. A catheter (thin plastic tube) may be put into a vein in the arm and left in place to allow several blood samples to be drawn without repeated needle sticks. Urine tests several times during the study.

To evaluate the efficacy and safety at 48 weeks between LPV/r monotherapy and 2 NRTIs + LPV/r therapy in patients failing a standard NNRTI-based treatment regimen. Also, to evaluate the short-term 24-week efficacy and safety of Lopinavir/ritonavir (LPV/r) monotherapy and 2 NRTIs+LPV/r therapy in patients failing a standard NNRTI-based treatment regimen as an interim analyses when 50% of the patients in each arm have reached 24 weeks after randomization. Last, to define risk factors for monotherapy failure in HIV-treated individuals Hypothesis. The rate of virologic suppression is not inferior in the monotherapy arm.