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Find 470 clinical trials for hiv/aids near Houston, Texas. Connect with research centers in your area.
Showing 321-340 of 470 trials
NCT00000873
This study examines the effects of an infant formula containing increased calories, as compared to commercial formulas, when given during the first 6 months of life. It will examine effects on growth, disease progress, immune system, and quality of life of infected infants. HIV disease in infants often leads to nutritional deficiencies. Providing increased nutrition early in their lives may help the quality of life of children who contract HIV from their mothers.
NCT00001129
The purpose of this study is to look at different ways to help patients follow their anti-HIV medication schedules. It is very important that HIV-positive patients take their anti-HIV medications correctly so they get the best possible benefit from them. Taking the drugs correctly, called "adherence," may keep HIV virus levels in the blood (viral load) low for a longer time. However, anti-HIV medication schedules are often complicated, and many patients have difficulty remembering to take their drugs at the correct time. This study will look at 2 different ways to teach patients about the importance of taking their medications correctly and to remind them when to take their medications.
NCT00005915
The purpose of this study is to compare 2 treatment plans to try to increase the effects of anti-HIV drugs in patients who are resistant to the drug effects. Sometimes the increase in a patient's viral load (the level of HIV in the blood) can be slowed or stopped by taking anti-HIV drugs. This does not always happen. Sometimes anti-HIV drugs work at first but then stop working. When most of the usual anti-HIV drugs no longer seem to work, the virus is called multidrug-resistant (MDR). This study will compare 2 treatment plans to try to increase the effects of anti-HIV drugs in patients with MDR virus.
NCT00896051
The purpose of this study is to determine the pharmacokinetics (how the body absorbs, distributes, metabolizes and eliminates a drug) (PK) of ETR when given with ATV/rtv and 1 NRTI in treatment experienced HIV-1 infected patients. In addition, safety, tolerability and anti-HIV effect of this regimen will also be studied. A total of 46 patients will be enrolled.
NCT01338883
This is a randomized, double-blind, double-dummy, 48-week, comparative study. Approximately 150 HIV-infected, treatment-naïve patients with CCR5-tropic virus will be stratified by HIV-1 RNA: ≥100,000 copies/mL versus \<100,000 copies/mL and will be randomized 2:2:1 to receive: * Arm A: CVC 100 mg (2 tablets, 50 mg each) QD + CVC matching placebo (2 tablets) QD + EFV matching placebo (1 tablet) QHS + FTC/TDF (1 tablet) QD. * Arm B: CVC 200 mg (4 tablets, 50 mg each) QD + EFV matching placebo (1 tablet) QHS + FTC/TDF (1 tablet) QD. * Arm C: CVC matching placebo (4 tablets) QD + EFV 600 mg (1 tablet) QHS + FTC/TDF (1 tablet) QD. Doses of both CVC/placebo and EFV/ placebo will be administered as double-blinded study drug. FTC/TDF will be administered as open-label study drug in a fixed-dose combination formulation (Truvada). CVC/placebo should be taken following breakfast; EFV should be taken on an empty stomach at bedtime. HIV-1 RNA levels and CD4+ and CD8+ cell counts, percentages, and ratios will be measured at every visit. Samples for viral tropism and resistance testing in case of virologic failure will be collected at Screening and each on-treatment visit. Biomarkers associated with inflammation and immune activation will be measured at Baseline (predose) and each study visit thereafter, with flow cytometry obtained at weeks 4, 12, 24, 48, and 52. Fasting metabolic indicators of glucose control (glucose and insulin for HOMA-IR, HbA1c) and fasting lipid profiles (HDL, LDL, total cholesterol, and triglycerides) will be measured at Baseline (predose) and Weeks 4, 12, 24, 48, and 52. Waist-to-hip ratios will be measured at Baseline and Weeks 24 and 48. Plasma samples will be collected and stored for possible future studies at Baseline (predose) and every visit thereafter.
NCT00073424
Taking anti-HIV medication consistently and properly is a critical issue for patients with HIV. Drug regimens are complex; when regimens are not taken properly, HIV can become resistant to the drugs. Taking anti-HIV medication properly leads to improved health. Children and adolescents with HIV face unique challenges to taking HIV medication properly. This study will look at the relationship between how children cope with the responsibility for taking medication and the child's language, memory, attention, behavior, and academic skills. This study is open to children and adolescents who are currently enrolled in the PACTG 219C study (Long-Term Effects of HIV Exposure and Infection in Children).
NCT00918073
We will conduct a sub-study of "An Innovative Telephone Intervention for HIV+ Smokers," (NCT00502827) conducted by Drs. Gritz, Vidrine, and others. This is a randomized, prospective trial that will evaluate a cellular phone delivered counseling intervention versus standard of care for smoking cessation. In our sub-study, we will evaluate rates of progression in atherosclerosis in HIV/AIDS patients who quit smoking versus those who continue smoking by measuring carotid intima-media thickness(CIMT) and biomarkers of atherosclerosis at time point baseline, 1 year, and 3 year. The biomarkers measured include high-sensitivity Creactive protein, homocysteine, and IL-6. We will also evaluate rates of progression of CIMT in those who quit smoking versus those who continue smoking, based on race, sex, state of HIV disease, comorbid diseases, and lipid profile.
NCT00253695
This study is a first step in approaching the gap existing between understanding sleep abnormalities, alterations in sleep-regulating cytokines and HIV-1 disease regulating cytokines, and abnormal higher cortical function.
NCT00524368
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).
NCT01355198
HIV infection is associated the development of increased oxidative stress and deficiency of glutathione (GSH), the dominant endogenous antioxidant protein, but the underlying mechanisms contributing to GSH deficiency are hitherto unknown. Furthermore GSH metabolism has not been studied in HIV patients, in whom the burden of risk factors promoting oxidative stress is highest. Our previous studies in non-HIV human subjects with diabetes-related oxidative stress and GSH deficiency have demonstrated that the latter is due to decreased synthesis of GSH. Importantly, short-term dietary supplementation with the simple GSH precursor amino-acids cysteine and glycine, boosted GSH synthesis and cellular concentrations, corrected GSH deficiency, and reduced oxidative stress and oxidant damage. The current proposal will study whether (1) defective synthesis underlies GSH deficiency in patients with HIV, and will test a simple, inexpensive and rational therapy based on protein supplementation to improve GSH synthesis and concentrations and lower markers of oxidative stress and oxidant damage in these patients; (2) study if correction of GSH deficiency is asssociated with any changes in (a) impaired mitochondrial fuel oxidation in the fasted and insulin stimulated states; (b) insulin sensitivity; (c) body composition and anthropometry; (d) forearm muscle strength; (e) plasma biochemistry, and (f) quality of life indices in these subjects.
NCT01077960
In Serono Study 24380, the antecedent protocol to Study 25373, patients were randomly assigned in a 3.0-to-1.0 ratio to Groups A and B. All patients in Group A received recombinant human growth hormone (Serostim®) 4 mg daily (the "induction" phase) for the first 12 weeks, and then were re-randomized to receive either placebo or Serostim 2 mg on alternate days (roughly equivalent to 1 mg daily) during Weeks 12-36 (the "maintenance" phase). All patients in Group B initially received placebo from baseline to Week 24, and then received Serostim® 4 mg daily from Weeks 24 to 36 (Grunfeld, 2007). In the follow-up Study 25373, any subject who was enrolled in Serono Study 24380 and was assigned to Group A, who fully completed all study visits without a major protocol violation, was eligible to enroll to receive re-treatment with Serostim at a dose of 4 mg daily for 12 weeks. During study 25373, safety was monitored by recording of adverse events and measurement of urinalysis and laboratory blood tests to assess fasting glucose, fasting insulin, and routine biochemistry and hematology parameters. At Week 12 or at the time of study termination, subjects underwent re-assessment of body composition via anthropometry measurements and dual photon absorptiometry (DXA) scanning. In addition, at study termination, measurements of insulin-like growth factor I (IGF-I), insulin-like growth binding protein 3 (IGFBP-3), fasting lipid profile, and oral glucose tolerance testing were obtained.
NCT00310843
Attempt to identify genetic polymorphisms in interrogated pathways which may be associated with symptomatic hepatotoxicity or severe cutaneous toxicity observed in case patients within the first 8 weeks of nevirapine therapy.
NCT00004735
The purpose of this study is to determine the number of newly formed CD4 cells in children who have taken anti-HIV drugs. The study will also evaluate the effectiveness of the new CD4 cells in producing an immune response to hepatitis A and tetanus toxoid vaccination. Study hypothesis: 1) Immunologic reconstitution of individuals who have less than 15% CD4 cells may or may not be associated with functional activity. 2) The functional immunologic responses to recall and newly experienced antigens may be different. 3) The functional responses to antigens delivered in vaccine format may be a function of CD4 level, viral load, or both.
NCT00000784
To examine, in patients enrolled in protocols CPCRA 006 and/or 007, the relationship between patient compliance and demographic, psychosocial, and lifestyle characteristics and Health Belief Model premises (i.e., patient's perception of susceptibility to and severity of disease and perception of benefits and barriers to a particular treatment) in order to design more effective intervention protocols. Patient noncompliance can influence the statistical findings of a clinical study, possibly resulting in an incorrect assessment of the effects of the investigational therapeutic agent. Since the special populations targeted by the CPCRA for inclusion in HIV-related clinical research do not typify those traditionally included in clinical trials or compliance research, it is necessary to elucidate and examine the special needs of these populations and to determine the extent to which these needs manifest themselves as potential barriers to protocol compliance.
NCT00001082
To evaluate the safety and efficacy of adefovir dipivoxil in prolonging survival of patients with advanced HIV disease. In CMV prophylaxis substudy: To evaluate the efficacy of adefovir dipivoxil in preventing the development of CMV end-organ disease in patients with advanced HIV coinfected with CMV. The optimal treatment for HIV infection and the prevention of CMV disease has not been identified. Currently available antiretroviral therapies are hampered by both significant toxicities and the development of resistance. In addition, agents for preventing CMV disease, such as oral ganciclovir, are complicated by poor bioavailability and decreased compliance secondary to toxicities. Moreover, discordant results have been reported regarding the effectiveness of oral ganciclovir for preventing CMV disease. There is a need for newer agents with anti-HIV and anti-herpesvirus activity that have good pharmacokinetic and safety profiles and that will be well tolerated by patients. Adefovir dipivoxil is an oral pro-drug of PMEA, a nucleoside analog with activity against a broad spectrum of retroviruses and herpesviruses, including important human pathogens, such as HIV-1, HIV-2 and CMV. Due to its anti-HIV and anti-herpesvirus activity, adefovir dipivoxil may be able to decrease the incidence of opportunistic herpesvirus infections and prolong survival in patients with advanced HIV infection.
NCT00000925
The purpose of this study is to determine whether a high-quality protein food supplement will help HIV-positive patients maintain, and possibly gain, muscle mass. Many HIV-positive patients lose weight that they are then unable to regain. This may be because patients are not eating enough protein or are not eating the right kinds of protein. The protein eaten in foods (such as meat, eggs, or beans) may not be able to make up for the amount of protein lost due to HIV infection. This study gives patients high-quality protein food supplements to help them maintain and/or gain weight.
NCT00043888
Antiretroviral Therapy (ART) naive subjects will be enrolled in this clinical research study to test the safety and tolerability of fosamprenavir with or without ritonavir in combination TRIZIVIR and COMBIVIR. Subjects will receive 24 weeks of therapy.
NCT00414518
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.
NCT00035581
This is an open-label, prospective, randomized, controlled study of the safety and efficacy including clinical, immunologic, and virologic assessments of adding Ampligen to "HAART" in HIV infected patients with CD4 counts \>300 and HIV-1 plasma RNA \>500 and \<30,000 copies/ml (PCR).
NCT00035893
This is an open-label, prospective, randomized, controlled study of the safety and efficacy including clinical, immunologic, and virologic assessments of adding Ampligen to a Strategic Therapeutic Intervention (STI) of HAART in patients with plasma HIV RNA \< 50 copies/ml (PCR) and CD4 levels \> 400.
