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Discover 17,885 clinical trials near Houston, Texas. Find research studies in your area.
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NCT00696436
The purpose of this study is to evaluate the efficacy and safety of azilsartan medoxomil, once daily (QD), compared to placebo, valsartan and olmesartan in participants with essential hypertension.
NCT00644969
Study will determine whether patients with schizophrenia or schizoaffective disorder can be helped to quit smoking safely while using varenicline and receiving smoking cessation counseling.
NCT00135447
The purpose of this study is to find out the frequency of the I50L substitution among patients experiencing treatment failure on an atazanavir-containing regimen.
NCT00067782
The purpose of this clinical research study is to learn if atazanavir is associated with serum LDL cholesterol in HIV-infected subjects following a substitution of atazanavir for their previously administered protease inhibitor.
NCT00860184
Atherosclerotic plaque at the carotid artery bifurcation is a major source of stroke. The purpose of this investigation is to determine the ability of the SmartRisk software module to predict stroke or stroke-related events due to carotid plaque within a high-risk population. The SmartRisk software module operates on magnetic resonance images (MRI) of the carotid artery wall.
NCT00032448
Inguinal hernia is one of the most common worldwide afflictions of men. The presence of an inguinal hernia is indication for its repair. Approximately 700,000 hernia repairs are performed in the U.S. each year, and this procedure accounts for 10% of all general surgery procedures in the Veterans Health Administration (VHA) (10,000 inguinal herniorrhaphies performed per year). There are many different techniques currently in use for repairing inguinal hernias and with the advent of laparoscopy, yet another technique is being advocated. Laparoscopic repair has been reported in some studies to be superior to open repair because of less pain and earlier return to work. However, laparoscopic repair requires a general or regional anesthetic and expensive equipment and supplies to perform. There is also evidence that open tension-free mesh repair may have results similar to laparoscopic repair for these patient centered outcome measures. The general acceptance of this procedure, especially in the VHA, has not been uniform. Furthermore, no randomized trial of sufficient size and power to be conclusive has been done to set forth the operative "gold standard" for hernia repair.
NCT00817453
Purpose: 1. To see if cytokine levels and oligomeric alpha-synuclein levels in blood and cerebrospinal fluid could be used as biological markers for Parkinson's disease (PD) onset and progression. 2. To characterize and define patterns in the clinical features of sleep, olfactory function and motor function in the early stages of idiopathic (sporadic) Parkinson's disease (PD)and atypical or late Parkinsonian Syndromes. Procedures: All subjects, control,early PD diagnosis and atypical or late Parkinsonian Syndromes, will have 1) a medical and neuro history and physical including videotaping of movements, 2) neuropsychological testing, 3) a sleep study, 4) olfactory (sense of smell) testing, 5)blood draw and LP for serum and CSF testing, \& 6) functional MRI. All of these procedures are often done in the diagnosis of PD. Any test performed prior to enrollment as part of the clinical evaluation may be used in place of repeating the procedure. Subjects will have 1 set of study visits (up to 3 visits) in order to accomplish a complete set of data.
NCT00195676
The two objectives of this study were to evaluate long-term efficacy and safety of adalimumab treatment in participants who had moderate to severe chronic plaque psoriasis and to evaluate the effectiveness of adalimumab retreatment in participants who had therapeutic response to adalimumab and were then withdrawn from adalimumab treatment.
NCT00566722
The objective of this study was to evaluate the safety and efficacy profile of Humira (adalimumab) in patients who had a sub-optimal response to prior systemic therapy. This open-label study was conducted in a patient population of moderate to severe chronic plaque psoriasis patients, which is an approved patient population for adalimumab.
NCT01331278
The custom cutting guides personalized for each patient via pre-operative MRI will result in significantly faster intraoperative time with comparable knee alignment accuracy, cost, knee function, and patient satisfaction.
NCT00070655
This trial will include patients who have a heart condition called atrial fibrillation. Atrial fibrillation is an abnormal rhythm (irregular beat) in the heart. Patients with atrial fibrillation have an increased chance for a blood clot to form in the heart and move to other blood vessels in the body and cause obstruction. This obstruction may damage tissue. For example, a blood clot plugging a vessel in the brain could cause a stroke. Therefore, patients with atrial fibrillation may be given anticoagulant (blood-thinning) tablets such as warfarin or acenocoumarol. The purpose of this study is to compare the safety and effectiveness of a new injectable anticoagulant drug that is administered once weekly, SR34006 with warfarin or acenocoumarol tablets. Assignment to either SR34006 Injection or vitamin K antagonist (warfarin or acenocoumarol) tablets will be purely by chance and will be known by both patients and their doctors.
NCT00695955
This purpose of this study is to evaluate the long-term safety and tolerability of azilsartan medoxomil in individuals with essential hypertension.
NCT00135343
The purpose of this study is to evaluate the safety and efficacy of a novel nucleoside sparing regimen containing atazanavir, ritonavir and efavirenz, using two different doses of atazanavir.
NCT00095290
Albumin in the urine is usually a signal that you might be at risk of cardiovascular complications. The purpose of this study is to determine if the albumin in your urine can be decreased by the treatment regimen that consists of irbesartan taken at the same time with ramipril.
NCT00035633
The purpose of this clinical research study is to assess the safety effectiveness of entecavir, as compared to lamivudine, in the treatment of adults with chronic hepatitis B infection who are hepatitis B e antigen positive.
NCT00035789
The purpose of this clinical research study is to assess the safety and effectiveness of entecavir, as compared to lamivudine, in the treatment of adults with chronic hepatitis B infection who are hepatitis B e antigen negative.
NCT00036608
The purpose of this clinical research study is to assess the safety and effectiveness of switching to entecavir compared to continued lamivudine in patients with chronic hepatitis B.
NCT00096746
This study will compare the response of subjects who failed a first-line ATV-containing regimen and who have the 150L-containing virus to subsequent protease inhibitor (PI)-containing therapy with that of a cohort who has failed a first-line reverse transcriptase inhibitor (NNRTI), and is subsequently receiving PI-containing therapy.
NCT01070303
The objectives were: (1) To demonstrate the efficacy of adalimumab in the long-term maintenance of clinical remission in participants with Crohn's disease; and (2) To delineate the long-term safety of adalimumab when administered to participants with Crohn's disease.
NCT00162331
The purpose of this clinical study is to learn if there are any changes in how blood gets to your heart muscle and if your heart size changed after your heart attack.