All Clinical Trials in Canada

The main goal of this study is to compare traditional cataract surgery with two new technologies: the femtosecond laser and the new Active Sentry handpiece. The femtosecond laser is used in several fields of ophthalmology and allows to automate multiple key steps of cataract surgery. The new generation of handpiece called Active Sentry has the particularity to detect the pressure inside the eye in real time and to adjust it to avoid large variations. Theses technologies would potentially increase the efficacy and safety of standard cataract surgery. This study therefore aims at evaluating the differences in cumulative dissipated energy and endothelial cell loss between femtosecond laser assisted cataract surgery with the new Active Sentry handpiece compared to standard phaco with new (Active Sentry) or older handpieces (OZil). Read Less

Body Dysmorphic Disorder (BDD) affects 2.3% of the population and is characterized by excessive concerns with imagined or minor defects in physical appearance. Retrospective outcome studies suggest patients affected by BDD don't typically benefit from surgical treatments while cognitive behaviour therapy (CBT) appears to provide symptom - reducing and distress - reducing benefits. Two different 8-week online CBT approaches to assisting individuals with this disorder are compared: one approach will integrate mindfulness meditation methods (in combination with CBT) and one approach will employ CBT methods without reference to mindfulness meditation. Read Less

Anxiety feeds the avoidance of dental treatments, leading to the neglect of general oral health. This avoidance is often amplified by the fear of potential pain and dissatisfaction after a dental appointment. A music listening intervention could be beneficial to reduce anxiety, pain and dissatisfaction. This intervention has the advantage to be non-invasive, cheap, and easy to implement in clinical settings. The objective of this study is to explore the effects of a personalised musical intervention on anxiety, pain and dissatisfaction associated with an autogenous gingival graft in comparison to the use of an audiobook (control). In this regard, three groups of patients will receive the gingival graft along with the personalized music intervention (n=20), an audiobook (n=20) or standard care (n=20). Participants will be distributed randomly between conditions in a single blind design (surgeons will be unaware of the condition). However, since the third standard care control group was added as of 07-01-2023, all recruited participants will be enrolled in the standard care control group (non-randomized). Self-reported measures of anxiety, pain, and dissatisfaction will be taken at different times (baseline, preoperative, postoperative, and follow-up). Read Less

This multicenter study will enroll 100 patients with acute traumatic cervical and thoracic SCI who have a lumbar intrathecal catheter inserted within 24 hours of their injury. The lumbar intrathecal catheter will be inserted pre-operatively for the measurement of ITP and the collection of cerebrospinal fluid (CSF) samples. SCPP will be calculated as the difference between MAP and the ITP. There are two important distinct yet related objectives in this prospective interventional study. 1. Determine the effect of SCPP maintenance ≥ 65 mmHg in acute SCI on neurologic recovery as measured by ASIA Impairment Scale (AIS) grade conversion and motor score improvement. 2. Collect CSF and blood samples for the measurement of neurochemical biomarkers and storage for future biomarker discovery and validation studies. Read Less

The study is designed to determine whether hemorrhage within the injured spinal cord is influenced by mean arterial pressure (MAP) augmentation with vasopressors and by venous thromboembolism (VTE) prophylaxis with anticoagulants in the first two weeks following a traumatic spinal cord injury (tSCI). Read Less

The study involves the 'first-in-human' evaluation of a novel optical sensor which uses near-infrared spectroscopy (NIRS) technology to assess oxygenation and hemodynamics of the injured spinal cord. The NIRS sensor is laid on top of the dura, at the site of the SCI, and emits near-infrared light signals into the cord to measure tissue oxygenation and tissue hemodynamics in real-time. Our testing of this novel NIRS sensor in patients with acute SCI represents the first step in translating this technology for human use. Read Less

Prospective, single center study designed to assess blood biomarkers for classifying injury severity and predict neurologic recovery in traumatic spinal cord injured (SCI) patients. Study will also establish the accuracy of point to care devices for SCI blood biomarkers and support the biospecimen collection for the International Spinal Cord Injury Biobank (ISCIB). Read Less

Favorable-risk prostate cancer represent a large proportion of patients diagnosed with prostate cancer and image guided radiation therapy (IGRT) is commonly used to treat these patients using protracted courses of up to 39 treatments over 8 weeks. Stereotactic ablative body radiotherapy (SABR) protocols hold the promise of more convenience, less side effects, less cost and improved system capacity without sacrificing excellent cancer control rates. By the same token, prostate high-dose rate (HDR) brachytherapy boost has been shown to be superior to standard external beam radiation. While two HDR fractions appear to optimize patient convenience and outcomes while minimizing costs, we wanted to determine the tolerability of combining one MR-guided HDR treatment with one SABR treatment to further reduce HDR resource use while maintaining favourable treatment outcomes. Read Less

The proposed study aims to simulate a meal eaten at home, where meals will provide a fixed amount of protein from beef or vegetarian substitute "meat" balls with ad libitum access to one of mashed potatoes, full-fat fries, or pasta. Postprandial glycemia (PPG), insulin, active ghrelin, satiety, amino acid response and food intake (FI) at the meal and again 3h later (after an ad libitum pizza meal) will be measured. In addition, post-meal PPG and satiety will be measured for one hour after the second meal. Read Less

The purpose of this study is to compare the effectiveness of a 4-week lower extremity telerehabilitation protocol with aims to improve lower extremity function to a 4-week attention-controlled education program on lower extremity clinical outcomes, quality of life, and healthcare resources utilization among community dwelling adults with stroke across Canada. Read Less

This is a placebo-controlled, triple-blind randomized clinical trial (RCT) designed to evaluate the feasibility of conducting a larger multicentric RCT investigating the effect of a Carrageenan mouthwash on oral HPV infection. Eligible participants will complete a single in-person visit at baseline, filling out a questionnaire on their electronic device and giving an oral rinse sample for HPV testing. They will receive an adequate supply of mouthwash and instructions on its use. They will subsequently be followed up for up to six months. Every two weeks, participants will fill out a follow-up questionnaire on mouthwash use and sexual activities and self-collect oral rinse sample to be returned by mail. Read Less

The goal of this observational study is to determine if liquid biopsies from patients with stage I non-small cell lung cancer (NSCLC) can add to the diagnosis of a small lung cancer, or can better detect recurrent lung cancer compared to the standard of care procedures used for diagnosing this type of cancer. The main question\[s\] it aims to answer are: * Primary Objective: 1) To assess whether liquid biopsy for molecular residual disease during follow-up can predict a recurrence of lung cancer * Secondary Objectives: 1. To assess the impact of SABR on detection rates of ctDNA in patients undergoing SABR for early-stage lung tumors. 2. To correlate positivity by blood-based cancer detection platforms and pre-treatment probability of malignancy using the Brock and Herder models. Study investigators will also assess the rate of detection for targetable mutations in this patient population, and to correlate ctDNA findings, in patients without tissue confirmed disease. Blood samples from participants will collected at eight (8) time-points: before the participant's first radiation treatment, following their first treatment and then at their 3-month, 6-month, 9-month, 12-month, 18-month and 24-month follow-up visits. Read Less