There are about 173942 clinical studies being (or have been) conducted in United States. The country of the clinical trial is determined by the location of where the clinical research is being studied. Most studies are often held in multiple locations & countries.
The purpose of this study is to evaluate the safety, pharmacokinetic and the pharmacodynamic effects of escalating doses of MTR105 while weaning from bypass in a hypotensive population of cardiac surgery patients.
The purpose of this study is to find a better, more convenient way to improve anemia results by increasing the amount of medication given at 3 week intervals. Researchers want to know if giving a higher dose of Procrit® and intravenous (IV) iron once every 3 weeks would give better results in treating anemia without the need for more office visits.
Indirect evidence suggests that hormonal fluctuations during the menstrual cycle also affect the bleeding and clotting system. This study looks at two sensitive laboratory tests at four time points during the menstrual cycle to determine if there is a natural variation in coagulation and platelet function. Laboratory tests in healthy subjects will be compared to women with von Willebrand's disorder type 1, a bleeding disorder. In the future, these laboratory tests may help in the diagnosis of bleeding and clotting disorders and to design treatments for women with abnormal menstrual bleeding.
Patients will be screened at the initial visit to the burn center. If the patients are eligible according to the inclusion/exclusion criteria, consent for the study will be obtained. One of the investigators will identify two sites that appear to be the same depth on each patient [1 site Polymen and 1 site bacitracin/xeroform )]. The depth of injury will be verified as partial thickness using laser doppler. Each site will be at least 4cm x 4cm in size. One site will be identified for bacitracin/xeroform and one site for Polymen. All burns will be initially debrided and cleaned according to burn unit protocol. The dressing will then be applied. All dressings will be covered with cotton gauze and ace wraps. Laser Doppler will be utilized to determine burn depth at both the trial and control sites. On each subsequent visit, patients will rate the pain of the dressing change on a 1-10 pain intensity scale. It will be noted if the wound appears infected or if antibiotics are prescribed. The study will end for each patient when the investigator determines that 95% of their burn has re-epithelized.
This study will collect blood, urine, and other tissue samples from 50 patients study-wide with Pentalogy of Cantrell and other inherited diseases that involve mutations in non-muscle genes. Mutations in non-muscle genes have been shown to result in human defects involving blood platelets, kidney, hearing and sight. The major objective of this protocol is to study a variety of blood, tissue and urine samples by looking at protein, DNA, and RNA in those collected samples.
Objectives: General objective: To determine how acculturation to United States has influenced the health and cancer risk among a US migrant Sri Lankan population. Specific objectives: 1. To determine the prevalence of cancer and cancer related non-communicable diseases among Sri Lankan Sinhalese living in the greater Houston area. 2. To study the distribution of risk factors for cancer in this population. 3. To study the pattern of utilization of methods available for early detection of cancer in this population. 4. To study and compare the findings of this survey with that of the siblings of this population living in Sri Lanka.
This study examines the Pediatric Emergency Department as a location for increasing safe car seat practices by parents who are not restraining their children appropriately in motor vehicles. Three different intervention will be tested to determine their effectiveness in increasing safe car seat practices: usual emergency department care; provision of printed materials; and a brief motivational intervention in the emergency department.
The purpose of this study is to develop a grading system for esophageal varices using capsule endoscopy in patients with portal hypertension and cirrhosis.
The present study relates to a new approach to coronary artery and coronary artery by-pass graft imaging, and more particularly to computed tomographic angiography following an aortic root injection of a low amount of contrast (up to 30 cc) via a percutaneously placed catheter (Vanguard DX, Medrad Inc.) positioned in the aortic root. The objective of the study is to show the feasibility of Coronary artery CTA using aortic root injection of contrast compared to the standard invasive cardiac catheterization.
OBJECTIVE: 1. To study tissues from spinal cord injured patients with noncompliant bladders as well as neurologically intact patients with normal bladder compliance, analyzing both quantitative and qualitative neural efferent receptors, collagen, and smooth muscle contents, using RT-PCR and electron microscopy. 2. To explore the possible shift in bladder neural architecture after SCI from beta to alpha-adrenergic receptors. RESEARCH DESIGN: 25 spinal cord injury patients who underwent cystoscopic procedures will be included in this study. 25 control patients without spinal cord injury and already scheduled for urologic procedures will also be included in this study. METHODOLOGY: Study patients will undergo flexible or rigid cystoscopy as well as selective cold cup biopsies of the posterior and lateral walls, and trigonal area of the bladder. Control patents will undergo cystoscopy and selected bladder biopsies preceding their scheduled urologic procedures. Tissue samples will be frozen for later EM and RT-PCR analysis of collagen, smooth muscle, and efferent adrenergic receptor content and subtype. Hemostasis will be achieved with a cautery electrode. Criteria of exclusion include active urinary tract infection identified by preoperative urinalysis, or the presence of suspicious lesions seen during cystoscopy. Suspicious areas will be biopsied and the patient will be excluded from the study. Subjects will be given a preoperative dose of Rocephin 1g IM as well as a postoperative 3-day course of Cipro 500 mg BID. Control patients will be given standard perioperative prophylactic/empiric therapy as indicated for their urologic procedure. Patients will be followed in 1-2 weeks to evaluate their postoperative course. FINDINGS: Total number of subjects enrolled: 43. 12-03: To date we have not encountered any problems with the study and health wise the subjects have done fine. No adverse events have been reported. Preliminary Results: The tissue is currently being analyzed - mRNA by microchip analysis and the data is still being worked on to look for correlations in genes up or down regulation versus the morphological EM findings previously reported.