There are about 28871 clinical studies being (or have been) conducted in Canada. 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.
Conventional approaches to relieve dyspnea (respiratory discomfort) in chronic obstructive pulmonary disease (COPD) have focused on improving respiratory motor drive (e.g., hyperoxia) and/or dynamic respiratory mechanics (e.g., bronchodilators). Although these approaches yield meaningful symptom improvements there remains many COPD patients incapacitated by dyspnea. Accumulating evidence suggests that abdominal binding (AB) is a potentially novel method of improving respiratory muscle function and, by extension, dyspnea and exercise tolerance in COPD. Thus, the purpose of this randomized, cross-over study is to test the hypothesis that AB improves exertional dyspnea and exercise tolerance in symptomatic patients with COPD by improving dynamic respiratory muscle function. To this end, the investigators will examine the effects of AB on detailed assessments of baseline pulmonary function (spirometry, plethysmography), dyspnea (sensory intensity & affective responses), neural respiratory drive (diaphragm EMG), contractile respiratory muscle function (esophageal, gastric & transdiaphragmatic pressures), ventilation, breathing pattern and cardiometabolic function during symptom-limited constant load cycle exercise (75% Wmax) in 20 patients with GOLD stage II/III COPD.
"Dyspnea" refers to the awareness of breathing discomfort that is typically experienced during exercise in health and disease. In various participant populations, dyspnea is a predictor of disability and death; and contributes to exercise intolerance and an adverse health-related quality-of-life. It follows that alleviating dyspnea and improving exercise tolerance are among the principal goals of disease management. Nevertheless, the effective management of dyspnea and activity-limitation remains an elusive goal for many healthcare providers and current strategies aimed at reversing the underlying chronic disease are only partially successful in this regard. Thus, research aimed at identifying dyspnea-specific medications to complement existing therapies for the management of exertional symptoms is timely and clinically relevant. The purpose of this study is to test the hypothesis that single-dose inhalation of nebulized ondansetron (a serotonin 5-HT3 receptor antagonist) will improve the perception of dyspnea during strenuous exercise in health, young men. To this end, the investigators will compare the effects of inhaled 0.9% saline placebo and inhaled ondansetron (8 mg) on detailed assessments of neural respiratory drive (diaphragm EMG), ventilation, breathing pattern, dynamic operating lung volumes, contractile respiratory muscle function, cardio-metabolic function and dyspnea (sensory intensity and affective responses) during symptom-limited, high-intensity, constant-work-rate cycle exercise testing in healthy, men aged 20-40 years.
In order to prevent infections and complications, it has been initially established with the dental implant placement protocol that pre- and post-operative antibiotics should be prescribed to the patient receiving dental implants. There have been many antibiotic regimens used in the attempt to minimize the risks of infections and consequently, increasing the survival rate of dental implants placement procedures. However, issues about bacterial resistance have been raised recently concerning the extensive use of antibiotics. The primary objective of this study is to find out whether giving antibiotics before or after implant placement would significantly influence crestal bone loss around dental implants. One study group will receive one dosage of antibiotics before implant placement followed by post-operative intake of antibiotics for 7 days. Another group will receive the antibiotics in one single preoperative dose followed by an identical placebo for 7 days. Questionnaires for pain and interference with daily activities assessment to be filled for the first postoperative week will be distributed to participants. Signs of postoperative morbidity will be recorded at 1 and 3 weeks following the surgery, and both clinical and radiographic data will be collected at 4 months postoperative to assess the implants status. A radiographic follow-up will be done 1 year after the surgery. Peri-implant crevicular fluid levels of 3 known immunological markers for bone loss (MMP-8, sRANKL and OPG) will be measured at 1-, 3- and 16-weeks follow-ups. The findings from this study might allow clinicians to establish the ideal antibiotic regimen with minimal risk exposure to bacterial resistance.
Catheter ablation has emerged as an effective therapy for atrial fibrillation (AF). However, achievement of complete& durable isolation of the pulmonary veins (PVs) is challenging, primary limited both by operator experience and also the limits of currently available ablation technology. Direct contact force sensing (CFS) is a novel technology that may help to ensure adequate lesion delivery. CFS may also help to improve the safety profile of catheter ablation. The purpose of this study is to compare two strategies of wide antral PV isolation plus linear ablation for persistent AF: 1. guided by contact force sensing (CFS) OR 2. blinded to contact force sensing (CFS) - i.e. standard approach
The objective of this study is to determine the mechanisms by which varenicline, an effective smoking cessation treatment, protects against relapse. Varenicline will be administered in smokers with schizophrenia and control smokers using a randomized, double-blind, cross-over design. Smokers will be asked to stop smoking overnight; the next day the ability to resist smoking will be assessed in a laboratory smoking lapse paradigm. Measures of tobacco craving, reinforcement and withdrawal-related cognitive dysfunction will be correlated with time to lapse. The results could have significant clinical implications by identifying mechanisms by which smokers with schizophrenia are at more risk for relapse than the general population, leading to the development of more effective smoking cessation therapies.
The purpose of this study is to provide continued access to ixazomib and/or lenalidomide to participants who are continuing to have clinical benefit and to continue collecting relevant safety data to monitor safety in participants with Newly Diagnosed Multiple Myeloma (NDMM) who are not eligible for stem cell transplant.
The study purpose is to test the hypothesis that Chronic Phase Chronic Myeloid Leukemia (CP-CML) patients with stable Complete Molecular Response (CMR) who discontinue Dasatinib treatment are able to maintain a sustained remission in the long-term, with undetectable or minimally detectable BCR-ABL residual disease.
The primary objective of this study was to assess users' ability to administer a full dose of evolocumab in home-use using either a pre-filled syringe or autoinjector/pen.
This trial was conducted in Africa, Asia, Europe, North and South America. The aim of the trial was to compare efficacy and safety of insulin degludec and insulin glargine in insulin naïve subjects with type 2 diabetes.
The purpose of this study is to find a way of detecting infection earlier in patients receiving bone marrow transplant. This is accomplished by continuous individualized monitoring of heart rate, respiratory rate and temperature variability in this patient population. The investigators are collecting data to determine whether or not subtle differences in heart rate, respiratory rate and temperature will help physicians to detect infection earlier in order to begin faster treatment before a patient's condition deteriorates. Blood tests will also be performed to check for certain biomarkers that may indicate infection