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Discover 13,620 clinical trials near Houston, Texas. Find research studies in your area.
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NCT02556203
To assess whether a rivaroxaban-based anticoagulation strategy, following successful TAVR, compared to an antiplatelet-based strategy, is superior in reducing death or first thromboembolic events (DTE). To assess the primary bleeding events (PBE) of the rivaroxaban-based strategy compared to an antiplatelet-based strategy, following TAVR.
NCT00533338
The specific aims of this study are: 1. To test the feasibility of a randomized controlled trial of a weight gain prevention program for breast cancer survivors that combines exercise and dietary changes during treatment. Feasibility will be evaluated by examining data on recruitment rate, attendance at intervention sessions, drop-out rates in both study conditions, assessment completion rates, and participant feedback. 2. To test the effect of a weight gain prevention program, compared to usual care, on weight, body composition, and biomarkers related to breast cancer prognosis. 3. To explore whether changes in physical activity, energy intake, and resting energy expenditure predict weight gain among breast cancer survivors. 4. To test the effect of a weight gain prevention program on quality of life variables.
NCT00340548
Background: Over 80% of the hemophiliac population who became infected with HIV prior to 1985 are also co-infected with HCV. Thus, hemophiliacs represent an important population for studies of the natural history of these chronic viral infections. Moreover, the high rate of co-infection makes it an ideal group for assessing the interaction between the viruses and the relationship between viral specific immune responses and clinical progression. Although the hemophiliac poulation is unique, co-infection by these chronic viral pathogens is becoming increasingly common, particularly amongst intravenous drug users, who account for approximately 25% of the HIV-1 epidemic in the United States. Objectives: The aim of this study is to determine if polymorphism in the promoter region of TH1 and Th2 cytokines are associated with (1) intracellular cytokines levels in CD4 + Tcells, (2) Human Immunodeficiency Virus (HIV) and Hepatitis C virus (HCV) viral loads, and (3) clinical progression of HIV1 to AIDS in hemophiliacs. Eligibility: The current proposal will investigate host genetic factors related to HIV-1 and HCV immunopathogenesis by studying children and adolescents enrolled in the Hemophilia Growth and Development Study (HGDS). Design: This study is in collaboration with the principle investigators of the Hemophilia Growth and Development Study (HGDS) as part of a grant "Pathogenesis of HIV and HCV in Hemophilia: HGDS-3" with funding support by NIH/NICHD for the period 9/25/01 through 8/31/2005. This multicenter, United States study represents a well-characterized, prospectively followed cohort of HCV-infected hemophiliacs, of whom 207 are HIV-1 co-infected. Enrollment of the hemophiliac cohort was completed between 3/89 and 6/90. The final observation of the cohort (follow-up 16) was concluded during 7/98. No new samples or clinical data will be collected on this population. The LGD plays two roles in this project: (1) an administrative role overseeing the withdrawal, handling, and transport of samples from the HGDS/LGD and central repositories at the NCI-Frederick, and (2) a scientific role continuing investigations to determine the role of host genetic factors in Th1 and Th2 immune response and regulation of HCV and HIV viral replication..
NCT01195337
The goal of this study is to learn why some black and Latino men and women choose not to exercise very often. Researchers also want to learn more about any social and environmental factors that may affect the way an exercise program is followed.
NCT02567656
The purpose of this study is to evaluate the safety, PK and efficacy of RP6530, a dual PI3K delta/gamma inhibitor in patients with relapsed and refractory T-cell Lymphoma.
NCT02844985
The study is intended to identify gene polymorphisms significantly associated with specific behavioral- and preoccupation-typologies of sexual addiction, and to identify additional potential genetic markers of sexual addiction. Research subjects with sexual addiction will be identified from the out-patient and in-patient populations of the investigative sites. Research subjects in the Control Group will be identified from the general population and from the student body of selected colleges. Approximately 1100 subjects will be enrolled in the study. Anticipating 10% drop-out, this is intended to generate a population of approximately 500 men and women clinically diagnosed with sexual addiction, and approximately 500 healthy men and women who do not meet diagnostic criteria for sexual addiction nor have psychopathology who will serve as the control population.
NCT00502983
Little is known about the epidemiologic risk factors associated with the development of acute myelogenous leukemia (AML), and less is known about the role that genetic susceptibility plays in the development of AML. We propose to conduct a population-based study to investigate genetic susceptibility in adult AML patients, both de novo and treatment-related in a well-defined geographical area. Using a case-control design, we will prospectively enroll 400 patients from Texas and 800 healthy controls. Controls will be recruited using random digit dialing, and will be matched to the cases by age, gender, and ethnicity. Epidemiological and demographic information will be obtained through personal interviews, and will be integrated with clinical information, cytogenetic data, and genotypic markers. Blood specimens will be collected on all participants, who will be genotyped for markers associated with activation and detoxification of chemical carcinogens, including chemotherapy drugs. Polymorphisms in genes such as cytochrome p450 (CYP2E1), glutathione S-transferases (GSTT1, GSTM1, GSTP1), epoxide hydrolase (HYL1), NADPH-quinone oxidoreductase (NQO1), and myeloperoxidase (MPO) will be analyzed. This study will provide insight into the role that these susceptibility markers, along with clinical epidemiological, and cytogenetic factors, play in the identification of people at risk of developing AML. Understanding how genetic predisposition and exogenous exposures interact to determine AML susceptibility will allow the development of prevention strategies in the future.
NCT03052075
The primary objective of this study is to estimate the percent change in baseline bone mineral density (BMD) starting at one year after parathyroidectomy and all the following available dates in patients presenting with primary hyperparathyroidism. The secondary objective is to identify patient factors associated with change in BMD.
NCT02528188
The purpose of this study is to compare the long-term joint safety and efficacy (pain relief) of the investigational study drug, tanezumab compared to non-steroidal anti inflammatory drugs (NSAIDs) in subjects with osteoarthritis of the hips or knees.
NCT03118739
The purpose of this clinical research study is to evaluate signals of potential clinical benefit of the combination of Verinurad and Febuxostat in lowering concentrations of circulating uric acid and thus improving kidney or cardiovascular status of patients with hyperuricemia, albuminuria, and Type 2 diabetes (T2DM).
NCT01664897
This pilot phase II trial studies how well erlotinib hydrochloride works in treating patients with relapsed or refractory acute myeloid leukemia. Erlotinib hydrochloride may stop the growth of cancer cells by blocking some of the enzymes needed for cell growth.
NCT02706717
The purpose of the study was to evaluate whether the probiotic Visbiome Extra Strength reduces inflammation in HIV-infected men and women when compared to a placebo (inactive medication like a dummy pill). The study evaluated whether taking Visbiome Extra Strength by mouth for 24 weeks was safe and well-tolerated for HIV-infected persons on antiretroviral therapy (ART). Probiotics are germs such as yeast or bacteria that are found in food and supplements that are used to improve the health of the digestive system. Many people refer to probiotics as "helpful bacteria." These bacteria live in the body and help the body work normally. In some medical conditions, including HIV infection, helpful bacteria are replaced with bacteria that can change the normal intestinal function and increase inflammation. The investigators tested whether giving a probiotic restored normal intestinal function and decreased inflammation.
NCT01708603
The purpose of this study is to assess the safety and efficacy of brodalumab at two different doses
NCT03562949
To compare the efficacy and safety profiles of Beclomethasone dipropionate Inhalation Aerosol, 40 mcg (test product) and QVAR 40 mcg (beclomethasone dipropionate HFA), Inhalation Aerosol (reference product) and to demonstrate that the efficacy of the 2 active products is superior to that of placebo in the treatment of subjects with asthma.
NCT02904096
The primary objective of this study is to evaluate the safety of Radiesse implantation for very severe volume loss in the dorsum of the hand at 6 months after treatment.
NCT02374671
The purpose of this study is to evaluate the safety and effectiveness of the VisAbility Micro Insert System for the improvement of near visual acuity in presbyopic patients.
NCT03109379
The purpose of this study is to determine if TAR-302-5018, an investigational drug-delivery system, is safe and tolerable in patients with idiopathic overactive bladder and urinary incontinence.
NCT02272413
The objective of this phase III trial is to establish statistical equivalence in terms of efficacy (best overall response rate \[ORR\], proportion of patients with complete response \[CR\] plus partial response \[PR\]) until 18 weeks of first-line treatment with BI 695502 plus chemotherapy versus Avastin® plus chemotherapy followed by maintenance monotherapy with either BI 695502 or Avastin®.
NCT03037203
This study is a 4-week, multicenter, randomized, double-blind, placebo-controlled, ascending dose, 4-period crossover study designed to evaluate the safety, tolerability, efficacy, and PK of JZP-110 (75, 150, and 300 mg) in the treatment of excessive sleepiness in adult subjects with idiopathic PD.
NCT03710707
The purpose of this study is to evaluate the safety, tolerability, pharmacokinetics, and pharmacodynamics of multiple oral doses of DNL201 in subjects with Parkinson's disease.
