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Filter by:The investigators wish to assess whether intensive periodontal therapy will reduce the burden of chronic periodontal disease and will cause regression or prevent progression of atherosclerosis assessed by a surrogate end-point (carotid intima-media thickness) at 24 months compared to control periodontal therapy.
This pilot research trial studies blood brain barrier differences in patients with brain tumors undergoing surgery. Studying samples of tissue and blood from patients with brain tumors in the laboratory may help doctors to understand how well drugs get into different parts of a brain tumor. This may help them to determine which types of drugs may be best for treating brain tumors.
This is a Phase II multicenter placebo-controlled randomized, feasibility/safety trial. Infants >34 week gestational age with perinatal acidemia and mild neonatal encephalopathy on the modified Sarnat neurologic examination at less than six hours of age. Participants will be randomized to receive either one dose of Darbepoetin, or placebo within 24 hours of birth. Neurodevelopmental testing (Bayley (III or IV) and Gross Motor Function Assessment) will be performed at 24 months of age. Pharmacokinetics will be assessed on those infants that received Darbe.
Adolescent idiopathic scoliosis (AIS) is a common disorder of unknown etiology in which the vertebrae and discs gradually develop a curvature that is first detected in patients between 11 and 20 years of age. The deformity is 3-dimensional, with a coronal curve measured from radiographs by the Cobb angle . The Cobb angle measurement of scoliosis represents the sum of the angular wedging of each vertebra and disc between the superior and inferior end vertebrae . Although a small curve is well tolerated and does not require treatment, a large curve can progress to the point that it is cosmetically unacceptable, interferes with chest wall mechanics, and produces cardiac and pulmonary compromises. The natural history of AIS apparently includes 2 stages: the initiation of the curve and its subsequent progression. The factors responsible for the initiation of the curve are unknown, but the subsequent progression of the curve is clearly associated with the adolescent growth spurt . The primary risk factors for progression include age at onset and the magnitude of the curve; young patients with large curves are at the highest risk . Although numerous treatment methods have been recommended for patients with AIS, the only accepted treatment includes bracing for skeletally immature patients with curves between 25 and 40 degrees and operative correction with spinal fusion for patients with curves greater than 45 degrees. For many teenagers, the cosmetic and social concerns associated with bracing has caused compliance problems with wearing the brace and many patients only wear the brace at home . While operative intervention completely corrects the scoliosis or rib hump, it eliminates segmental spinal motion, and concentrates stresses at the ends of the fusion potentially leading to disc degeneration and back pain. Despite satisfactory short-term results of operative instrumentation and fusion, a less invasive technique preserving more motion with a smaller scar represents a major improvement. Realizing this goal is contingent on treating curves early, before they progress to an irreversible deformity, and when there is still enough residual growth and remodeling potential. ApiFix Ltd has developed a novel implant for less invasive treatment of AIS. The MID-C system is designed to correct the deformity step by step along a period of time, giving the skeletal and soft tissues time to accommodate any incremental correction. The MID-C System inherent benefits are: - Only two screws are used - Incision size is much smaller - Simpler operation with shorter operative time - Less complications (attributed to the three points above). - Minimal spinal mobility loss. All the device components are made of materials well accepted in the orthopedic field and are fully biocompatible (see Investigator Brochure). The unique concept of the system and the materials used may provide favorable results as follows: Smaller scare, quicker healing period and better spine mobility over the years. This study is designed to demonstrate that the MID-C System is safe and effective.
Adolescent idiopathic scoliosis (AIS) is a common disorder of unknown etiology in which the vertebrae and discs gradually develop a curvature that is first detected in patients between 11 and 20 years of age. The deformity is 3-dimensional, with a coronal curve measured from radiographs by the Cobb angle . The Cobb angle measurement of scoliosis represents the sum of the angular wedging of each vertebra and disc between the superior and inferior end vertebrae . Although a small curve is well tolerated and does not require treatment, a large curve can progress to the point that it is cosmetically unacceptable, interferes with chest wall mechanics, and produces cardiac and pulmonary compromises. The natural history of AIS apparently includes 2 stages: the initiation of the curve and its subsequent progression. The factors responsible for the initiation of the curve are unknown, but the subsequent progression of the curve is clearly associated with the adolescent growth spurt . The primary risk factors for progression include age at onset and the magnitude of the curve; young patients with large curves are at the highest risk . Although numerous treatment methods have been recommended for patients with AIS, the only accepted treatment includes bracing for skeletally immature patients with curves between 25 and 40 degrees and operative correction with spinal fusion for patients with curves greater than 45 degrees. For many teenagers, the cosmetic and social concerns associated with bracing has caused compliance problems with wearing the brace and many patients only wear the brace at home . While operative intervention completely corrects the scoliosis or rib hump, it eliminates segmental spinal motion, and concentrates stresses at the ends of the fusion potentially leading to disc degeneration and back pain. Despite satisfactory short-term results of operative instrumentation and fusion, a less invasive technique preserving more motion with a smaller scar represents a major improvement. Realizing this goal is contingent on treating curves early, before they progress to an irreversible deformity, and when there is still enough residual growth and remodeling potential. ApiFix Ltd has developed a novel implant for less invasive treatment of AIS. The MID-C system is designed to correct the deformity step by step along a period of time, giving the skeletal and soft tissues time to accommodate any incremental correction. The MID-C System inherent benefits are: - Only two screws are used - Incision size is much smaller - Simpler operation with shorter operative time - Less complications (attributed to the three points above). - Minimal spinal mobility loss. All the device components are made of materials well accepted in the orthopedic field and are fully biocompatible (see Investigator Brochure). The unique concept of the system and the materials used may provide favorable results as follows: Smaller scare, quicker healing period and better spine mobility over the years. This study is designed to demonstrate that the MID-C System is safe and effective.
The purpose of this study is to plan for future clinical trials in patients with metastatic urological cancers. Diluted iodinated contrast will be injected intra-tumorally under CT fluoroscopy guidance into bone, lymph node, soft tissue and liver metastases in subjects with metastatic prostate cancer, urothelial carcinoma, or renal cell carcinoma. Pre- and post-injection CT images will be obtained to determine the injection parameters needed for optimal distribution throughout metastases of a given size. A biopsy of the metastatic site will also be obtained to validate expression of the receptor CD155.
Evaluation of tomographic (Pentacam) parameters and genetic parameters of Visual System Homeobox 1 (VSX1), Superoxide Dismutase (SOD1), Tissue Inhibitors of Metalloproteinases (TIMP3) genes of keratoconus patients diagnosed by clinical exam and topographic pattern. Basically we are screening patients that don't have keratoconus that those have keratoconus. The pentacam index of corneal curvature, thinnest point, corneal high order aberrations, posterior and anterior elevation, corneal densitometry, corneal volume were investigated. To analyze the genes, we took corneal epithelium samples of patients submitted to cross linking compared to (PRK) Photo Refractive Keratectomy ones. Also will be evaluated the genes of peripheral blood.
This is a 24 week open label study to assess the efficacy of bi-weekly ranibizumab for patients with retinal fluid due to exudative macular degeneration refractory to monthly therapy.
This will be a 5 year randomized, double blind, placebo controlled trial of 7 days of oral prednisone in cystic fibrosis (CF) patients receiving intravenous (IV) antibiotic treatment for a pulmonary exacerbation at the Hospital for Sick Children and other study sub-sites across Canada. The intervention will be oral prednisone 2 mg/kg/day (max 60 mg) divided twice daily for 7 days as an adjunctive therapy for pulmonary exacerbations in CF patients who have not recovered their baseline forced expiratory volume in 1 second (FEV1) after 7 days of IV antibiotic treatment. The primary outcome will be the proportion of subjects who achieve >90% of their baseline FEV1 % predicted at day 14 of IV antibiotic treatment for a pulmonary exacerbation in each treatment arm.
Ischemic heart disease is the leading cause of mortality with 7.2 million of death in industrialized countries (WHO data). Myocardial infarction corresponding to acute occlusion of a coronary artery is the most brutal form and the more severe ischemic myocardial disease. Every year in France, about 60,000 Myocardial infarctions hospitalized, 30,000 are diagnosed remotely and 30,000 are revealed by an inaugural sudden death. Although mortality from myocardial decreased by 30% over the past decade, the prognosis is pejorative and difficult to assess precisely. The management of the patient depends on these factors, and justifies an active search on these topics, including the mechanisms of the deleterious ventricular remodeling, myocardial inflammation, reperfusion injury which determines in particular the evolution to heart failure. Cohorts of patients with myocardial infarction are rare but can be very valuable by their clinical, laboratory and imaging well documented. They are the source of new hypotheses for research or interventions as well as the quality of care assessment tool. The main objective of this project is to identify new markers: biological and imaging, treatment response and prognosis after acute myocardial infarction. Secondary objectives of the HIBISCUS-STEMI cohort to establish a clinical database, completed by biological samples and by imaging data that can be used in the following areas: - Descriptive epidemiology of myocardial infarction and myocardial reperfusion - Pharmacoepidemiology and treatments observatory: safety, efficacy, indication of treatment in real life, costs - Assessment of the long-term effect of the treatment on the occurrence of heart failure and sudden death - Quality of life and personal consequences, family, professional and social myocardial infarction - Research of new diagnostic and prognostic biomarkers - Research projects (e.g. risk of developing kidney failure or stroke in patients with myocardial infarction compared to the general population).