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Discover 17,885 clinical trials near Houston, Texas. Find research studies in your area.
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NCT00000780
PRIMARY: To identify, characterize, and co-enroll HIV-infected adolescents into existing and future ACTG (or other NIH-sponsored) HIV treatment protocols through the systematic and recurrent assessment of eligibility. To assess the ability of adolescents enrolled in ACTG 220 to adhere to ACTG (or other NIH-sponsored) HIV treatment protocols; and to define factors that influence the adolescent's ability to enter or adhere to study protocols. SECONDARY: To describe the nature, stage, and progression of HIV infection in adolescents. Little is known about HIV-infected adolescents as a group and, as a result, small numbers of them are currently enrolled in ACTG drug studies. Creative approaches are needed to encourage enrollment of HIV-infected adolescents whose socio-demographic profile has made access to NIH-sponsored research unlikely.
NCT00043264
Multiple sclerosis (MS) is an inflammatory, demyelinating disease which affects the central nervous system (CNS). The etiology of MS is unknown, although the immune system appears to play a role. Many different infectious agents have been proposed as potential causes for MS, including Epstein-Barr virus, human herpesvirus 6, and coronaviruses. Recently Dr. Sriram at Vanderbilt University has found evidence for active Chlamydia pneumonia infection in the CNS of MS patients. These findings have been replicated in part by other laboratories. The purpose of the current study is to test whether antibiotic treatment aimed at eradicating Chlamydia infection will reduce the disease activity in MS. The primary outcome measure will be reduction in new enhancing MS lesions on brain MRI. Forty patients will be entered into the trial. To be eligible, patients must have evidence of chlamydia infection in their spinal fluid and enhancing lesions on their pre-randomization MRI scans. Patients who meet these criteria will be randomized to either placebo or antibiotic therapy, and followed for 6 months on treatment.
NCT00064597
This purpose of this study is to develop noninvasive methods of prenatal diagnosis. Fetal cells can be found in maternal blood. This study is designed to isolate these fetal cells from a sample of the pregnant woman's blood and use those cells to test for fetal chromosome abnormalities.
NCT00002330
To compare the time to progression of Cytomegalovirus (CMV) retinitis among each of three doses of oral ganciclovir, as well as to intravenous therapy, when given as maintenance for 26 weeks. To compare the safety and tolerance among oral doses of ganciclovir at the study doses, as well as to intravenous therapy, when administered as maintenance for 26 weeks.
NCT00002150
To characterize the safety and efficacy of fixed doses of MDL 28,574A administered alone and in combination with zidovudine ( AZT ) in patients with asymptomatic or mildly symptomatic HIV infection. To examine the demographic effects on population pharmacokinetics and pharmacodynamics of MDL 28,574A alone and in combination with AZT.
NCT00004739
The use of protease inhibitors is increasing in HIV-infected children because this treatment has resulted in improved body weight, improved immune status and less hospitalizations. However, recent reports suggest that these drugs may also be associated with some negative side-effects, specifically a syndrome of diabetes and fat redistribution. Development of the fat redistribution/diabetes syndrome has recently been reported in HIV-infected children, as well as in adults. Diabetes is associated with complications such as increased heart disease, eye disease and loss of kidney function. Thus development of diabetes is a significant problem which could outweigh the benefits obtained by treating patients with protease inhibitors. One major cause of diabetes is lack of normal response to insulin (insulin resistance). Insulin resistance tends to be worse in family members where one or more parent has diabetes, and is also worse in certain ethnic groups. The first major purpose of our study is measure insulin resistance in HIV-infected children who do not take protease inhibitors, and compare our findings to those from patients who are treated with protease inhibitors. We will also follow patients newly treated with protease inhibitors for two years to evaluate changes in insulin sensitivity. These results will be correlated with each patient's family history of diabetes and with ethnicity, and should help us better predict which children are "at risk" for development of diabetes from protease inhibitor therapy. Children with HIV infection often have problems with gaining enough weight and with poor linear growth (height). One likely reason for this is the way their bodies use and store protein. The second purpose of our study is measure protein turnover and to correlate our findings with growth data. We also plan to study the effects of protease inhibitor therapy on protein turnover. We believe that these studies will provide knowledge to help clinicians formulate recommendations for nutritional and medical therapy.
NCT00002169
The purpose of this study is to see if it is safe and effective to give Viracept to AIDS patients who are already being treated for cytomegalovirus (CMV) retinitis.
NCT00002105
To determine the efficacy of Stealth liposomal doxorubicin hydrochloride (DOX-SL) in the treatment of moderate to severe AIDS-related Kaposi's sarcoma (KS) by comparison with the established therapy BV (bleomycin/vincristine). To evaluate the safety and tolerance of DOX-SL compared to BV in a population of AIDS patients with moderate to severe KS.
NCT00002119
To evaluate the clinical toxicity, safety, and MTD of WF 10 ( TCDO ) intravenous solution administered to patients with HIV infection. To evaluate the potential anti-HIV activity of TCDO.
NCT00055510
This research study is intended to evaluate the safety and effectiveness of 3 different doses of BO-653, an investigational inhibitor of LDL cholesterol oxidation, when given orally twice a day compared to placebo (an inactive substance) in preventing restenosis (closure of vessel) within six months after stent implantation. Patients must be enrolled into this study within 24 hours after the stenting procedure. Additionally, over a 1- to 9-month post-stent period, the study will compare the safety and effectiveness of BO-653 versus placebo for measures of coronary artery vessel size by quantitative coronary angiography, major adverse cardiac events, and effects on the oxidative status of plasma lipids and other plasma components.
NCT00002096
To determine whether there is a pharmacokinetic drug interaction between oral ganciclovir and oral zidovudine (AZT) and between oral ganciclovir and oral didanosine (ddI). To determine whether concurrent administration of probenecid affects the pharmacokinetics of oral ganciclovir. To obtain data on the short-term safety of oral ganciclovir administered concurrently with AZT, ddI, or probenecid in HIV-positive patients.
NCT00002442
The purpose of this study is to compare the safety and effectiveness of 2 dosing schedules (once daily vs twice daily) of lamivudine (3TC) given with stavudine (d4T) and either indinavir (IDV) or nelfinavir (NFV) for 24 weeks.
NCT00004985
The purpose of this study is to look at the effectiveness of an anti-HIV drug combination that adds capravirine in patients who have failed their first drug combination treatment.
NCT00002304
To compare the safety, tolerance, and effectiveness of fluconazole and ketoconazole in the treatment of candidal esophagitis in immunocompromised patients.
NCT00002437
To determine whether cidofovir (HPMPC) therapy administered by intravenous infusion can extend the time to progression of peripheral cytomegalovirus (CMV) retinitis in AIDS patients. To evaluate the safety and tolerance of HPMPC therapy when administered by intravenous infusion in AIDS patients with CMV retinitis that is not immediately sight-threatening. To evaluate the virologic effects of intravenous HPMPC therapy on CMV shedding in urine, blood, and/or semen. To evaluate the impact of HPMPC therapy on visual acuity.
NCT00002446
The purpose of this study is to compare the safety and effectiveness of 2 treatments for thrush (a fungal infection of the mouth and throat) in HIV-positive patients. Fluconazole is a drug that is commonly used to treat thrush. SCH 56592 is a new drug that will be compared to fluconazole.
NCT00002184
To evaluate the safety and tolerance of the combination of adefovir dipivoxil at two comparative doses and nelfinavir plus saquinavir SGC administered orally (Group 1) vs. the combination of adefovir dipivoxil and nelfinavir plus either zidovudine, lamivudine, or stavudine (Group 2) vs. the combination of adefovir dipivoxil and saquinavir SGC plus either zidovudine, lamivudine, or stavudine (Group 3) in HIV-infected patients with prior nucleoside reverse transcriptase inhibitor therapy but no prior exposure to protease inhibitors who have CD4 cell counts \>= 100 cells/mm3 and an HIV-1 RNA baseline copy number \>= 5000 copies/ml. To determine the proportion of patients whose plasma HIV-1 RNA level falls below the level of detection (\<500 copies/ml) at 20 weeks of study therapy and the average reduction in HIV-1 RNA from baseline through study week 20. To evaluate the durability of the antiviral response through 48 weeks of study in patients who continue on study therapy after week 24.
NCT00002386
The purpose of this study is to see if indinavir plus two other anti-HIV drugs affect blood clotting in HIV-positive patients with hemophilia.
NCT00040560
The purpose of this study is to investigate the safety and imaging ability of 111In-DAC when used with planar and SPECT imaging for the detection of lung cancer and brain cancer consistent with metastatic lung cancer.
NCT00002361
The purpose of this study is to see if it is safe and effective to give an anti-HIV drug combination containing indinavir and ritonavir to HIV-positive patients who have failed previous treatment with protease inhibitors.
