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.
The aortic valve is located between the left ventricle and the aorta. Patients with symptomatic, severe aortic valve stenosis conventionally have it surgically replaced requiring direct access to the heart through the chest. Transcatheter aortic valve replacement (TAVR) is now a well-established alternative for treating severe aortic valve stenosis. Both types of intervention improve prognosis and alleviate symptoms. The optimal choice of blood thinning therapy after TAVR is unknown. It has been reported that leaflet thrombosis with reduced leaflet motion can occur and this phenomenon has been suggested to be potentially related with neurological events. In addition, the occurence of this phenomenon can be reduced with anticoagulation blood thinning therapy. The purpose of this study is to evaluate if anticoagulation compared to the usual double platelet inhibitor therapy after TAVR can reduce the risk of leaflet thrombosis.
Pilot randomized controlled trial evaluating a Self-Determination Theory (SDT) video-based tele-rehabilitation physical activity intervention aimed to enhance basic psychological needs, motivation, physical activity (PA), and quality of life- related outcomes of adults with spinal cord injury (SCI). It is anticipated that the individuals who receive the physical activity intervention (intervention group) will have moderate increases in their basic psychological needs, autonomous motivation, life satisfaction, and physical activity participation, and a moderate decrease in controlled motivation and depressive symptoms compared to the individuals who did not receive the intervention (control group).
The study is divided into 2 parts. The first part of the study will be double-blinded and will last for 24 weeks. During this time, participants will be randomized in a ratio of 2:1 to receive either evolocumab once monthly (QM) or placebo QM. The second part of the study is a 24-week open label extension period. During this time all participants will receive evolocumab QM. The clinical hypothesis is that subcutaneous evolocumab QM will be well tolerated and will result in greater reduction of low density lipoprotein cholesterol (LDL-C), defined as percent change from baseline at Week 24, compared with placebo QM in human immunodeficiency virus (HIV)-positive participants with hyperlipidemia or mixed dyslipidemia.
Caffeine is the most used psychoactive drug in Canada, with regular consumption by 88% of the adult population, While rates of caffeine consumption are considered to be high in the general population, there is some evidence that they may be even higher within schizophrenia patients; in a 2006 U.S. study, daily consumption rates of caffeine were nearly double those observed in a healthy control population (471.6 mg/day vs. 254.2 mg/day). Furthermore, 13% of the schizophrenia population studied ingested more than 1000 mg/day of caffeine, well above the 400 mg daily maximum recommended by Health Canada. High doses of caffeine are particularly concerning for individuals with schizophrenia; caffeine alters dopaminergic activity at post-synaptic neurons through its actions at adenosine A2A receptors, which may exacerbate positive symptoms, such as delusions and hallucination. This significant rate of consumption is likely due in part to caffeine's actions on the human brain, resulting in increased arousal, elevated mood and beneficial effects on a wide-range of cognitive processes including verbal working memory, sustained attention, and executive function. These areas of caffeine-induced cognitive improvement notably overlap with the cognitive domains that are reported to be diminished in schizophrenia. Despite this overlap and the rates of caffeine consumption observed within schizophrenia, research reports examining the effects of caffeine on cognition and brain activity are all but non-existent in this population. The primary objective of this proposal is to compare the effects of caffeine and placebo on brain function during cognitive tasks in participants with schizophrenia. While the investigators have specific hypotheses for each task, overall the investigators hypothesize that caffeine will improve cognitive function (as evidenced by larger ERP amplitudes and/or reduced ERP latencies) compared to placebo in schizophrenia patients, with similar effects (albeit reduced in magnitude) observed in non-patient healthy controls.
This will be a single-center, randomized, parallel-group, placebo-controlled study to assess the local nasal tolerability and safety of multiple administrations of topically (intranasally) administered 1146A delivered by a nasal spray applicator in healthy adult participants
The objective of the study is to investigate the efficacy, safety and pharmacokinetics of four different doses of BI 425809 once daily compared to placebo given for 12 weeks in patients with schizophrenia on stable antipsychotic treatment.
The purpose of this study is to evaluate the possible association between portal vein flow pulsatility and acute kidney injury after cardiac surgery. Participants will undergo assessment of portal vein flow and intra-renal blood flow using bedside Doppler ultrasound before surgery and daily for three days after cardiac surgery.
The Fontan Education Study is a cluster randomized controlled trial evaluating the impact of a novel education program in combination with usual care, versus usual care alone, on preparing parents of children undergoing Fontan surgery for the challenges of the postoperative course.
This study will compare safety, efficacy, and tolerability of a two drug regimen of dolutegravir (DTG) plus (+) lamivudine (3TC) administered once daily with DTG plus two nucleoside reverse transcriptase inhibitors (tenofovir disoproxil fumarate [TDF]/emtricitabine [FTC] fixed dose combination [FDC]) administered once daily in human immunodeficiency virus (HIV) 1 infected adult participants that have not previously received antiretroviral therapy. The study is designed to demonstrate the non inferior antiviral activity of DTG + 3TC regimen to that of DTG + TDF/FTC FDC and will characterise the long term antiviral activity, tolerability and safety of DTG plus 3TC through Week 148. Approximately, 700 participants will be randomised 1:1 to receive DTG + 3TC or DTG + TDF/FTC FDC. Participants will be stratified by screening HIV 1 ribonucleotide nucleic acid (RNA) levels and by screening CD4+ (cluster of differentiation 4) cell count.
This Phase 2 Quadrivalent VLP Vaccine study is intended to replicate and extend the immunogenicity and safety results obtained in earlier Phase 1-2 and Phase 2 studies. The study is being conducted to evaluate that the immunogenicity profile of the Quadrivalent VLP Vaccine meets the US Center for Biologics Evaluation and Research (CBER) licensure criteria and to evaluate if the immunogenicity and the safety profile of the Quadrivalent VLP Vaccine is acceptable and comparable to that of the FluLaval® Tetra and Fluzone® High-Dose (HD). The study will also help to define the optimal dose in this population, establish potential competitive advantages, and support the design of future studies.