All Clinical Trials in Canada

Study Agent/ Intervention/ Procedure The educational tool consisted of 20 short (MSK) case simulations of 15 minutes duration reflecting conditions of the upper extremity; lower extremity; spine; trauma and MSK infections were developed, reviewed and integrated into links that also contained demographic questionnaires; pre and post simulation knowledge questions and learner satisfaction surveys. Outcome Measures 1. Demographic questionnaire for the Learner; 2. 100 MCQ (multiple-choice questionnaire) reflecting the same questions contained in the 20 MSK Short Case Simulations 3. Pre/Post multiple choice question knowledge questionnaire 4. Learner satisfaction questionnaire 5. Patient experience and satisfaction questionnaire - QR Code 6. Educator evaluation questionnaire - QR Code 7. Focus group questionnaire Primary Objectives 1. To determine if learners working through the 20 MSK Short Case Simulations delivered through on-line links would improve their knowledge, skills and satisfaction in learning how to identify and initially manage patients with various MSK conditions when compared to learners not exposed to the same educational tool. 2. To determine patients' experience undergoing one of the 20 MSK assessments and initial management of their various MSK conditions by the learners and their satisfaction in receiving their initial care management in both groups 3. To determine if the assessment and initial management of the 20 MSK conditions by the learners on the patients was deemed to be competent by the educators in both groups Read Less

This is an observational longitudinal study to determine the natural history and genotype-phenotype correlations of disease causing mutations in Charcot Marie Tooth disease (CMT) type 1B (CMT1B), 2A (CMT2A), 4A (CMT4A), and 4C (CMT4C). The investigators will also be determine the capability of the newly developed CMT Pediatric Scale (CMT Peds scale) and the Minimal Dataset to measure impairment and perform longitudinal measurements in patients with multiple forms of CMT over a five year window Read Less

The goal is to derive and a clinical decision rule for safe exclusion of traumatic brain injury without neuroimaging in head-injured ED patients who take anticoagulant medications. The objectives are to: 1. Derive and externally validate a new highly sensitive and maximally specific clinical decision rule for the exclusion of traumatic brain injury in head-injured ED patients who take anticoagulant medications; and, 2. Estimate the sensitivity and specificity of existing head injury clinical decision rules in head-injured ED patients who take anticoagulant medications. Read Less

Sexual violence (SV) perpetrated by dating partners and male acquaintances is common among adolescent girls in high school. Girls and young women who experience SV are likely to encounter negative mental and physical health consequences as well as lowered academic performance. While educational interventions to address the problem of SV are numerous, when evaluated, few show any capacity to reduce sexual violence victimization or perpetration. The Enhanced Assess, Acknowledge, Act (EAAA) sexual assault resistance program for female university students (ages 17-24) is a rare exception; in a rigorous trial, EAAA reduced attempted and completed rape by 50% in the following year. The current randomized controlled trial (RCT) will test whether a version of EAAA that has been adapted for younger girls (age 14-18) who have not graduated high school (called the Adolescent Enhanced Assess, Acknowledge, Act \[A-EAAA\]) will result in similar benefits within a 6-month follow-up. The current RCT will be conducted across three sites in Ontario, Canada. Read Less

This is a single center study enrolling up to 10 patients. The primary objective is to Evaluate the feasibility and safety of the DaRT for the treatment of Liver Metastases. The secondary objective is to evaluate the pathological response of liver metastases according to the Modified tumor regression grade\[1\] and to evaluate the radiological response of liver metastases using the RECIST criteria. Read Less

1.0 BACKGROUND Postural tachycardia syndrome (POTS) is a disorder of chronic orthostatic intolerance characterized by symptoms of palpitations, lightheadedness, chest discomfort, shortness of breath, blurred vision, and mental clouding. These symptoms occur during standing and are associated with a marked increase in heart rate (HR) in the absence of hypotension, which typically resolve when sitting or lying down. Most importantly, POTS is associated with a very poor quality of life and significant functional disability. POTS patients commonly experience mental clouding ("brain fog") even while lying down or seated, which poses significant limitations to daily activities . Unfortunately, there is a relative paucity in the literature assessing therapies for POTS patients. Given that excessive tachycardia on standing is a fundamental component of this syndrome, a handful of studies have evaluated medications that reduce HR. Ivabradine is newer drug that is a selective If channel blocker that reduces HR without affecting other cardiovascular functions. 2.0 RATIONALE / STUDY PURPOSE The investigators propose to compare the efficacy of propranolol and ivabradine on HR response to standing, and symptom burden in patients with POTS. 3.0 Study Design This will be a single-center double-blind placebo-controlled randomized crossover trial conducted in patients with POTS to compare effects of (1) oral ivabradine 5 mg bid plus placebo BID (to fill out a QID schedule); (2) oral propranolol 10 mg qid; and (3) oral placebo qid in POTS patients. After a baseline screening assessment following a washout period of 7 days, participants will be randomized to start with a 4-week course of either ivabradine, propranolol or placebo. The other two treatments will be given in separate 4-week courses with a 7-day washout period between phases, with each participant acting as his or her own control. At the end of each 4-week phase, participants will complete the symptom-rating and HRQOL questionnaires, and also undergo tilt table testing to assess the change in HR at 10 min with head up tilt. Participants will undergo POTS testing at baseline and at the end of each 4-week treatment course. This will involve a total of 4 separate study visits. Read Less

The mechanism behind postural orthostatic tachycardia syndrome (POTS) involves many causes including a sympathetic nervous system problem. Blood gases, like carbon dioxide (CO2), have an important effect on sympathetic activation. The purpose of this research study is to determine if higher CO2 levels have any effect in lowering heart rate and reducing POTS symptoms when upright/standing. The investigators are also searching for the ideal CO2 concentration to achieve the most effective response Read Less

Project rationale: Vasovagal syncope (VVS) affects up to 50% of people, and recurrent syncope markedly reduces quality of life. We recently reported that it is frequently associated with injury and not surprisingly with clinical anxiety. Although conservative measures help many patients there remain many who require more care. CIHR-funded studies have shown that fludrocortisone and midodrine are effective but cannot be used in patients with contraindications such as hypertension and heart failure. Pacemakers are partially effective in older patients, but this is established only in the small minority with proven asystole. There remains a need for a simple, once-daily medication with few contraindications that can be used as first-line therapy for most patients with recurrent vasovagal syncope. Preliminary Studies: Norepinephrine transport (NET) inhibitors show promise as a novel treatment. Three (reboxetine, sibutramine, and atomoxetine) all prevent vasovagal syncope in healthy subjects and vasovagal syncope patients on tilt tests. Atomoxetine, approved to treat attention deficit disorder, is a highly selective NET inhibitor. We reported a proof-of-principle, randomized, placebo-controlled trial of the efficacy of atomoxetine to prevent vasovagal syncope on tilt table tests. Patients underwent tilt testing after receiving either atomoxetine 40 mg or placebo. Fewer VVS patients fainted with atomoxetine than placebo (10/29 vs. 19/27; odds ratio 0.22, p \< 0.01). Our meta-analysis of the effects of NET inhibition on the vasovagal reflex induced by tilt tests was highly positive. A pre-post study showed that sibutramine reduced syncope frequency in highly symptomatic and drug-refractory patients. A similar pre-post study showed that atomoxetine also reduces syncope frequency about 85% in patients with frequent and drug-intolerant or drug-resistant vasovagal syncope. Therefore,NET inhibition by atomoxetine merits assessment based on positive proof-of-principle studies, an apparent class effect, and two open-label pre-post studies. These results provide the rationale for a formal randomized, placebo-controlled, crossover trial of atomoxetine in moderate-to-high risk patients with VVS. Hypothesis: We will test the hypothesis that oral atomoxetine prevents syncope in patients with recurrent VVS. The Study: Patients will be included based on a positive Calgary Syncope Symptom Score and a history of at least 2 faints in the previous year. Eligible patients will be randomized to atomoxetine 40 mg po twice daily or matching placebo in a randomized, placebo-controlled, parallel design, double-blind, crossover trial. Each arm will last 6 months with a 1-week washout period. The primary outcome measure will be the proportion of patients with at least 1 syncope recurrence. The study will be powered to detect a beneficial odds ratio of 0.5, selected on the basis of the control outcome rates in 2 similarly designed, previous studies and international expert requirements for effect size. A sample size of 180 subjects will provide 85% power of detecting a difference between the arms at p\<0.05. We will assess the effects of atomoxetine on quality of life, anxiety, injury, and the cost-effectiveness of atomoxetine treatment, and the effects of genetic factors on outcomes. Substudies : The quality of life scales will be the SF-36 and the Euroqol EQ5D, which will also be used as the health utility index for the economic studies. The depression and anxiety scales will be the Hospital and Anxiety Depression Score (HADS) and the General Anxiety Disorder - 7 Score (GAD-7). Clinical anxiety is highly prevalent in patients with recurrent syncope. Injury will be self-reported using our published definitions. The health economic substudy will be from the health system perspective and will use Alberta administrative data. DNA will be collected from spit acquired in the Oragene saliva self-collection kits, and an initial candidate gene study might include alleles of CYP2D6, COMT, the serotonin (SLC6A4) and norepinephrine (SLC6A2) reuptake transporters, and the 5HT1A and 5HT3 receptors. Summary: Adults who faint recurrently are highly symptomatic. There are no therapies suitable for most patients have withstood the test of randomized clinical trials. If successful, atomoxetine will reduce syncope and improve quality of life. Read Less

About 65,000 Canadians develop acute respiratory failure requiring breathing machines (ventilators) to give oxygen to their lungs. Unfortunately, up to 50% of these individuals will not survive their illness. Mechanical ventilation through breathing machines, though potentially lifesaving, may further injure the lungs and the respiratory muscles. In the patients with the most severe and life threatening forms of respiratory failure a breathing machine alone may not be able to provide enough oxygen to the lungs and vital organs. In these critical situations, patients may require an artificial lung machine, which is referred to as extracorporeal membrane oxygenation (ECMO) to temporarily replace the function of the patient's own lung and supply critical oxygen to the body, while protecting the damaged lungs. How to use the breathing machine safely while a patient is on ECMO is still unknown. Using conventional breathing machine settings while on ECMO can lead to large portions of the lungs or airway to remain collapsed, which can contribute to further lung damage. The investigators have recently discovered a way of detecting if patients on a breathing machine suffer from collapsed airways. Knowing if the most severe patients on ECMO have airway collapse is a pivotal question that the investigators plan to answer in our study. The investigators will use our technique to determine how many patients on ECMO have airway closure and determine if this contributes to a longer time on ECMO and a longer time on a breathing machine, and if this impacts a patient's survival in the intensive care unit. Read Less

Timely access to family-centred services for children with disability and their families is important to support their development and well-being. Currently, many children face long wait times and barriers to services. Lack of access can lead to negative impacts for children and stress for their families. With the COVID-19 pandemic, these issues have been made more challenging with the loss of rehabilitation support for children, increasing stress on families. During this time, therapists moved to telehealth service delivery to support children and families. We know that telehealth can improve access to services, children's outcomes, and family satisfaction, and that telehealth a key element of Family Centred Services (FCS) in pediatric rehabilitation. FCC include practices that promote flexibility, respect and dignity for families' views, knowledge and strengths, effective information sharing, partnership and collaboration in decision making, and coordinated and comprehensive care. FCC focuses on developing collaborative family-provider relationships, where parents are active participants in collaborative goal-setting, therapy planning, implementation, and evaluation, and where activities are integrated within daily routines and contexts (e.g., home and community). Compared to traditional service delivery methods, telehealth offers opportunities to enhance FCC practices. FCC provides alternate, convenient, and flexible ways to partner with families, respecting their characteristics and barriers, allows knowledge and information sharing about the child within their contexts, supports family decision making and parents' well-being, and has been recognized as an important addition to comprehensive care coordination and service delivery. Telehealth is an important and effective alternative for families living in both urban and remote or underserved areas and can be more convenient than in-person visits (e.g., less travel time, schedule flexibility). However, the use of telehealth prior to the pandemic was low in pediatric rehabilitation. In addition, many therapists report delivering telehealth without prior experience, and lack confidence, knowledge, and training in effective intervention strategies. Although therapists' knowledge, skills and attitudes toward telehealth can improve with time and experience, training and support are required for behavioural changes to occur. Following the pandemic, there has been continued support for the use of FCT and for its ongoing use to support families of children with disability. Pediatric rehabilitation therapists, service managers, professional associations, policy makers, and families are all making the case for not "returning to normal", and are asking for help to keep telehealth as part of FCS care. The goal of the current study is to evaluate the use and effectiveness of a Training Intervention and Program of Support (TIPS) to increase the uptake of FCT in pediatric rehabilitation centres across Canada. The main research question is: Can TIPS be adapted to increase the use of FCT interventions by therapists working in different contexts? The primary objectives are to: 1. Evaluate the use of FCT regarding: 1. Therapists' desire to use vs actual use of FCT practices 2. Use of FCT practices as they were intended to be used Secondary objectives are to: 2. Describe the variations required to adapt the TIPS to meet each site's needs 3. Identify factors that influence FCT use and adherence 4. Evaluate the effectiveness with regards to: 1. Service wait-times 2. Family-centredness of services 3. Changes in service delivery 5. Evaluate the costs (and possible cost savings) related to increased use of FCT The primary hypotheses are that therapists' desire to adopt FCT and deliver FCT practices as intended will (i) improve slightly in the short term (i.e., one-month post-TIPS), yet (ii) will improve significantly post-TIPS, (iii) while actual use will vary over time, across sites and therapists, and will depend on therapist-, client-, organizational- and system-factors. For the secondary hypotheses, the investigators expect that, for sites with the largest changes in desire to use and use of FCT practices as intended, (iv) wait times will significantly decrease and (v) families' perceptions of service quality will significantly improve post-TIPS. Read Less

Many patients with postural orthostatic tachycardia syndrome (POTS) have decreased plasma volume. Current POTS guidelines recommend \~10 g of salt and 2-3 L of fluid per day. Despite this recommendation, there is no long term data evaluating the use of salt in POTS. This randomized, placebo-controlled cross-over trial will evaluate a high salt diet, compared to a normal salt diet over a period of 3 months. Participants will complete 3 in lab evaluations including autonomic function testing, tilt table testing, blood volume and urine sodium evaluation, plasma catecholamine measurements and and cytokine measurements. Read Less

The placement of external ventricular drainage (EVD) is a life-saving procedure used to relieve high pressures in the brain. Often performed at the bedside, a small tube (catheter) is inserted into one ventricle of the brain to drain cerebrospinal fluid and release the pressure build up. In standard practice, EVDs are placed freehand and initial catheter malpositioning occurs in up to \~60% of procedures. Currently, there are no adequate means to verify the position of the catheter before insertion which is a significant impediment to ensure accurate positioning. This non-interventional study aims to validate a novel technology, Bullseye EVD, for verifying the position of the EVD catheter during these emergency procedures. Read Less