All Clinical Trials in Canada

Tobacco use is a risk factor for at least 20 types of cancer and remains the leading preventable cause of cancer in Canada. Smoking cessation is an important cancer prevention strategy for the close to 2 million Canadian women who currently smoke. However, findings from controlled trials and real-world clinical settings indicate that women have greater difficulty achieving abstinence following a quit attempt than men. There is some evidence that hormonal levels and fluctuations throughout the menstrual cycle (MC) may contribute to the greater difficulty women experience when trying to quit smoking. In this study, the start of a quit attempt using nicotine replacement therapy (NRT) will be targeted to specific phases of MC. It was hypothesized that starting a quit attempt during the first half of MC (follicular phase) will result in increased quit success compared to starting during the second half of MC (luteal phase) or the usual practice of not targeting quit start date to MC phase. Read Less

The overall purpose of conducting this study is to evaluate the safety and efficacy of V-Flex and V-Steady for augmentation of osteoporotic vertebral compression fractures and to verify that adding a cement softener into a PMMA bone cement is comparable to a PMMA bone cement alone (V-Steady). Read Less

The goal of this observational study is to learn about heart function and high lung blood pressure in patients with heart failure. The main question\[s\] it aims to answer are whether we can improve the ability to predict patients who will have complications after they receive treatment including heart transplant and left ventricular assist devices. Read Less

To determine if 68Ga-HA-DOTATATE PET/CT imaging is effective at diagnosing somatostatin positive tumors compared to conventional imaging \[including CT, MRI, 111 In-pentetreotide Scans, 18F-FDG PET/CT, as available\] Read Less

Sleep apnea is characterized by temporary pauses or stops to participant's breathing. Currently, sleep apnea is diagnosed using an in-lab sleep study, which involves spending a night in a sleep laboratory hooked up to wires on the head, chest, and legs. However, this is not feasible for many older adults. To overcome this barrier, the investigators will utilize an investigational vital signs monitor - the Advanced NeoNatal Epidermal (ANNE) Vital Sign System (Sibel Health, Evanston, IL,USA). The primary objective of this study is to test the hypothesis that sleep apnea is associated with accelerated cognitive decline in older adults at risk for dementia. The investigators will measure sleep apnea at baseline and 12 months later and relate this to cognitive function at the same time points. Sex-stratification will be used in analyses as appropriate. Qualitative feedback forms will be used to collect information about participant ease of use and experience with the ANNE Vital Sign System. Read Less

The goal of this registry is to gather more information on the efficacy and safety of various antithrombotic regimens. The registry collects data on patients with antiphospholipid syndrome and an arterial event within the past 12 months, on treatment with either A) a VKA with therapeutic range, INR 2.0-3.0 plus low-dose aspirin (75-100 mg daily), B) a VKA alone with therapeutic range, INR 2.0-3.0, C) a VKA with therapeutic range, INR 3.0-4.0, or D) with a dual antiplatelet regimen. The follow-up is 2 years. Read Less

The goal of this prospective, open label cohort study is to assess functional and motor outcomes in individuals with cervical spinal cord injury who have undergone nerve transfer surgery, with the goal of increasing upper limb function. We will also compare these outcomes to a cohort of similarly matched individuals who have not undergone nerve transfer surgery, using robust outcome measures, rigorous pre-operative clinical and neurophysiological assessments, and standardized rehabilitation. At the end of this project we aim to develop a model for predicting nerve transfer outcomes using pre-operative clinical and neurophysiological characteristics. Read Less

The drawbacks of chemical CO2 absorbers include the production of compounds harmful to patients that also lead into increased cost and environmental impact, as well as the daily disposal of compound special waste. Sustainable management of general anesthesia is a growing concern. Continually diluting anesthetic circuits, and the disposal of chemical granulate are serious environmental problems. Read Less

This is a unique three-fold prospective and retrospective study. With this approach, all previous and current PLIs presented at participating study sites will have the potential to be included in the study. Our goal is to collect all relevant injury and surgical parameters of the Perilunate spectrum. The investigators plan to identify each hospital within Canada that normally treats PLIs and to record injury and demographic information on each PLI that occurs in this country over a two to three-year period. Our protocol includes scheduled two, five, and 10-year follow-up intervals. Read Less

Beta-blockers have the greatest cardiovascular impact in patients with reduced heart function/heart failure and in reducing the peri-operative risk of atrial fibrillation. In patients without these high-risk features treated with coronary artery bypass graft (CABG) surgery, their continued long-term role is unclear. Read Less

Osteoarthritis (OA), the most common form of arthritis, is a leading cause of disability, affecting the quality of life, pain, and physical functioning of 4.6 million Canadians. About half of OA patients have limited response to primary therapy. The number of OA patients continues to rise, affecting the quality of life of those with OA. There is a dire need to develop future effective treatment options. Cannabis is a potential therapy for those with OA and may provide analgesic, anti-inflammatory, and disease modifying effects. The common barriers to use are a lack of knowledge regarding efficacy, access, and commonly used products, doses and routes of administration. No high-quality clinical trials of cannabis for OA have been conducted, leaving physicians struggling to guide and inform patients regarding symptom relief. Findings from clinical trials of cannabis for other painful conditions have been variable, perhaps due to suboptimal cannabis products and failure to consider important patient characteristics. The goal of the current study is to characterize patient- and cannabis-level factors that are associated with OA pain and address other knowledge gaps. Read Less

The SPARC-C study is a prospective, single-centre observational study of patients referred for the management of large (≥ 20mm) non-pedunculated colorectal polyps (LNPCPs). Patients are managed consistent with current standards of care. Prospectively collected data includes: patient clinicodemographic details, lesion details, procedural details, and clinical outcomes. Read Less