All Clinical Trials in Canada

The development of stereotactic body radiation therapy (SBRT) for the treatment of stage I non-small cell lung cancer (NSCLC) has inspired a close partnership between thoracic surgery and radiation oncology. In this study, patients with stage I NSCLC will be screened prior to treatment and will be consented after their treatment plan has been determined. Prospectively collected patient-reported outcomes (PROs) will be collected for 3 years or for the duration of the study (whichever is shorter), as will outcomes data. Read Less

Dental cavities are among the most frequent diseases that affect teeth, particularly in patients who are treated with braces due to the difficulty in maintaining good oral hygiene in the presence of the mouth appliances. The white spot lesion (WSL) is the first clinical sign of cavities that presents itself as a milky-white opacity when located on the front face of the tooth. The aim to manage these early lesions focuses on promoting natural remineralization and preventing further demineralization. Various materials have been introduced for management of WSLs including MI paste and MI paste combined with fluoride (MI paste plus). Recently, a new material called resin infiltration has been found to treat these lesions with high esthetic results and great performance. According to the few numbers of in-vivo studies investigating the effectiveness of remineralization products, the aim of the current study is to clinically compare the outcome of the resin-infiltration and etching + MI paste plus to stop and improve the appearance of the WSL on front teeth in patients after treatment with braces. Read Less

This is an observational, proof-of-concept, feasibility study where 30 preterm infants on bubble CPAP with gestational age \< 32+0 weeks will be recruited from the neonatal intensive care unit (NICU) at the Montreal Children's Hospital. The study's main goals are: 1. To determine the relationship between ambient bubbling sounds and delivered pressures in preterm infants on bCPAP. 2. To determine the relationship between transmitted bubbling sounds and airway pressures transmitted to the lungs of preterm infants on bCPAP. 3. To develop models to predict delivered and transmitted bCPAP pressures from the acoustic properties of bubbling sounds. Read Less

'CHIP' stands for Clonal Hematopoiesis of Indeterminate Significance, which are mutations in bone marrow stem cells that give that population of cells a survival or 'clonal' advantage for growth. This study investigates whether CHIP in lymphoma patients aged 60 years and older is a risk factor for chemotherapy-related complications like low blood counts, infections, cardiac events, hospitalizations, dose delays and dose reductions, and failure to recover normal blood counts after chemotherapy finishes. Read Less

The goal of this clinical trial is to evaluate the feasibility of using virtual reality based visual field testing to monitor glaucoma in a clinical setting. This will be done through comparison of a virtual reality (VR) based device to the current gold standard Ziess Humphrey Field Analyzer (HFA). The main questions the study aims to answer are: * Can both devices produce similar results in terms of detecting visual field defects and progression? * Does the stage (early, moderate, advanced) of glaucoma impact results between the two devices? Participants will perform both a standard and a VR based visual field test at each visit, for a total of 5 visits. Read Less

This study aims to compare two common ultrasound techniques used during heart surgery: transthoracic echocardiography (TTE) and transesophageal echocardiography (TEE). TTE is performed by placing an ultrasound probe on the chest, while TEE involves inserting a probe into the esophagus, which provides closer and clearer images of the heart. Both methods are part of routine care for patients undergoing heart surgery. The goal of this study is to assess how well the measurements from TTE and TEE agree in evaluating heart chamber dimensions during surgery and to investigate how factors such as anesthesia, breathing techniques affect these measurements. This research involves 114 adult patients scheduled for heart surgery at Sunnybrook Health Sciences Centre. Participants will have TTE performed before and after surgery, and TEE will be conducted during surgery. All procedures are part of the usual standard of care. By comparing these imaging techniques, the study seeks to provide more accurate and up-to-date guidelines for cardiac measurements, ensuring better care for patients during heart surgery. Read Less

Apathy is a common, early, and disabling symptom in dementias and mild behavioural impairment such as Alzheimer's disease (AD) and is characterized by lack of interest and enthusiasm. Both repetitive transcranial magnetic stimulation (rTMS), a form of non-invasive brain stimulation, and methylphenidate, a medication, have been shown to improve apathy. This pilot study will investigate rTMS as a treatment for apathy in neurocognitive disorders and mild behavioural impairment in individuals receiving methylphenidate and individuals not receiving medication for apathy. Read Less

This prospective observational study aims to describe the effectiveness of MC on pain, epilepsy, sleep and /or anxiety/depression in a cohorts of patients authorized to use MC, using pre-defined, validated self assessment scales. Read Less

The goal of this clinical trial is to learn if administering a high dose stimulant with Contingency Management reduces days of use in adults who use methamphetamine better than the usual treatment provided by the clinic. The main questions the trial aims to answer are: Is a high dose stimulant better than a placebo and usual treatment at helping reduce the number of days they use methamphetamine? Is a high dose stimulant with contingency management better than placebo and usual treatment at helping people reduce the number of days they use methamphetamine? Participants will be placed randomly into one of four groups: 1. Usual treatment and placebo 2. Usual treatment, placebo and contingency management 3. Usual treatment and high dose stimulant 4. Usual treatment, high dose stimulant and contingency management Participation includes the following: 1. Participants will receive medication or placebo weekly for 15 weeks. 2. Participants will attend the clinic for weekly treatment 3. Participants will attend the clinic once every 2 weeks for study visits. Each visit will take about an hour to complete. At these visits, participants will be asked to provide a urine sample and complete questionnaires. Read Less

The investigators want to know if sugar water containing 24% sucrose is helpful in reducing pain in babies during scopes. Read Less

This project will evaluate the feasibility of a new fully self-guided online Acceptance and Commitment Therapy (ACT) program entitled Advancing Online Psychology Tools for the Transitional Pain Service (ADOPT-TPS), developed on an online health application platform called Manage My Pain (MMP). The ACT program is designed to teach mindfulness skills and provide psychoeducation about post-surgical pain. The feasibility of the self-guided online program will be compared to a pre-existing psychologist-guided workshop that delivers the same program. It is anticipated that the self-guided online ACT program will be deemed feasible by participants. Read Less

The purpose of this trial is to investigate the effect of acute ketone monoester ingestion (0.6 g KME/kg body weight) on the occurrence of the ventilatory threshold and the subsequent response of blood velocity in cerebral arteries during a maximal exercise test at low altitude and high altitude. Read Less