All Clinical Trials in Canada

Total Knee Arthroplasty (TKA) is also known as a knee replacement. It is one of the most common orthopaedic (bone) surgeries performed and is usually very successful, but some people who have had a knee replacement feel pain that lasts for at least 3 months after surgery and thus continue to take pain control/ analgesic (opioids) medication. Opiates are medications like morphine. Pain post-surgery can make it difficult to recover and return to daily activities. A better control of pain before the surgery, can help people feel less pain, recover faster, and use less opioids after surgery. Cryoneurolysis means freezing the nerves that can cause pain. It uses very low temperatures in a specific body part (e.g., nerves to the knee) to freeze the pain nerves and therefore reduce the pain. When applied before the surgery it might help with postoperative pain after knee replacement. This study will evaluate Iovera, a cryoneurolysis handheld device commercially available in Canada that delivers freezing cold to a target nerve by using nitrous oxide. Cryoneurolysis can relieve pain and symptoms associated with osteoarthritis of the knee for up to 90 days. Read Less

Background: Chemotherapy treatment (CT) can have burdensome side effects such as fatigue, nausea-vomiting, and sleep problems that can significantly affect patients' quality of life. Fatigue is the most common, lasting and bothersome of these, which prevents people from working and carrying out daily activities. Mindfulness-Based Cancer Recovery (MBCR) is an evidence-based group training program which has shown to help treat negative physical and psychosocial symptoms in cancer patients. The investigators propose to evaluate a pilot-tested online-MBCR program for patients undergoing CT who may be low on energy, time or have compromised immunity. Objectives: To evaluate the impact of participation in online MBCR during CT on fatigue (primary outcome), sleep, pain, nausea/vomiting, mood disturbance, stress symptoms and quality of life (secondary outcomes) as well as cognitive function and return to work (exploratory outcomes) over the course of treatment. Methods: The study design is a randomized wait-list controlled trial, conducted during CT for patients with breast or colorectal cancer. Participants will take the 12-week online MBCR program at home within 2 weeks of randomization (immediate group) or after CT completion (waitlist group). Outcomes will be assessed online at, 1) Baseline, 2) Post-MBCR, 3) Post-CT (primary outcome) and 4) 12 months post-baseline. Anticipated Findings: MBCR is a promising adjuvant program that could help patients prevent, delay or diminish aversive symptoms and side-effects associated with CT, particularly fatigue. If helpful, online-MBCR could be made easily available at cancer centers worldwide and significantly lessen the burden of cancer treatments. Read Less

The NeoVest delivery device is a wearable vest/shell that surrounds the infant's abdomen. It was developed using serial body measurements of infants previously admitted to the St. Michael's Hospital NICU (REB #15-183). It gently pulls on the abdomen by applying negative pressure, thereby displacing the diaphragm. The materials used for the NeoVest are lightweight and suitable for the infants' sensitive skin. The AIM of the present study is to demonstrate the feasibility of applying negative pressure NIV, that is synchronized and proportional to the infant's respiratory demand. The preliminary data on feasibility can be used to apply for larger grants from the CIHR, for a study of the NeoVest in smaller premature infants. Read Less

Hepatopulmonary syndrome (HPS) is a rare condition that presents in about a quarter of patients with liver cirrhosis. In addition, a small subset of these HPS patients also have orthodeoxia, defined as a drop in oxygen levels when they are sitting up (upright), as opposed to lying flat (supine). At present, there is little known about this condition. Patients diagnosed with HPS and orthodeoxia experience reduced ability to exercise, especially when upright. While standard cardiopulmonary exercise is routinely performed in the sitting position, there are machines that enable candidates to exercise in the supine position. This is especially relevant in patients with severe HPS, with clinically significant orthodeoxia, where conventional upright exercise is difficult. Currently there is a gap in the literature regarding the efficacy of supine exercise compared to upright exercise in these patients. Due to their improvement in dyspnea when lying supine, it is predicted that these patients will be able to exercise for a greater length of time and have increased exercise capacity, which can be projected to improve outcomes pre- and post-transplant. Overall, HPS patients tend to experience hypoxemia and exercise limitation. Exercise limitation impacts quality of life, incidence and severity of comorbid conditions, and in those who are liver transplant candidates, low exercise tolerance deleteriously impacts transplant outcomes. Accordingly, a strategy that enables patients to exercise more often and/or for longer periods would offer direct benefits to patients with HPS, and if employed as part of an exercise program, could also improve exercise capacity, and thus, liver transplant outcomes. The purpose of this study is to investigate the effect of supine, compared to upright position on exercise in patients with HPS and orthodeoxia. We hypothesize that these patients will be able to exercise for longer in the supine compared to the upright position, given improved oxygen levels when supine. Read Less

Intravitreal injection (IVI) is an ophthalmological procedure used worldwide to treat ocular conditions. Its use has been steadily increasing for several years, because this method of drug delivery minimizes systemic exposure and allows for intraocular drug levels not achievable through systemic or topical drug administration. IVI of agents such as anti-vascular endothelial growth factor (anti-VEGF) or corticosteroids are efficacious for several retinal diseases, including age-related macular degeneration, macular edema due to retinal vein occlusion or diabetic macular edema, and uveitis, among others. But IVIs are not without their risk of complications and the most feared of which is infectious endophthalmitis, which can occur following intravitreal injections and has potentially devastating visual consequences, including loss of vision and/or the eye itself. Although endophthalmitis´s incidence ranges from 0-0.2% per infection, the cumulative risk for patients under sequential treatment may equate to more than 1% after 2 years of treatment. Endophthalmitis management following IVIs generally consists of a vitreous tap and inject (TAI) and/or a pars plana vitrectomy (PPV) with intravitreal injection of antibiotics. However, there is no consensus on the optimal treatment of IVI-related endophthalmitis. Thus, an established treatment protocol for IVI-related endophthalmitis is warranted to optimize patient outcomes. The aim of this study is to determine whether PPV or TAI is superior for the treatment of IVI-related endophthalmitis. Read Less

External radiation given in 25 fractions or so together with weekly chemotherapy and followed by 3 or 4 fractions of brachytherapy is the standard of care for patients with locally advanced cervical cancer. This study investigates the role of shortened external radiotherapy regimen (hypofractionated radiotherapy) by randomizing patients to this experimental regimen versus the standard of care.The purpose of this study is to access the feasibility of patient accrual to this trial in the Canadian setting and to provide an initial evaluation of cancer response and treatment tolerability. Read Less

The study will examine the efficacy of an internet-based cognitive behavioural therapy (iCBT) for Inflammatory Bowel Disease (IBD) intervention to reduce stress, anxiety, and depression in individuals with IBD and comorbid clinically elevated t anxiety and/or depressive symptoms. The investigators will conduct a two-arm RCT comparing participants receiving the iCBT intervention (intervention group) and those receiving Treatment As Usual (TAU). Read Less

The Positively Dance study involves the assessment of the accessibility and feasibility of a 12-week randomized aerobic dance pilot program that will provide women living with HIV with the opportunity to take part in dance classes with women living with HIV as the dance instructors. Read Less

The general goal of the present study is to assess the impact of a community-based exercise and dietary intervention in pregnant women living in urban areas during and after their pregnancy on the reduction of the risks of both diabetes and obesity in mothers and their offspring. We hypothesize that a community-based lifestyle intervention program during and after gestation may improve pregnancy outcomes in terms of reducing the risk of developing obesity or type 2 DM in mothers and their children. Read Less

Unplanned hospital readmissions are associated with increases in morbidity, mortality, cost and patient dissatisfaction,. Policymakers continue to seek effective policy solutions to avoid readmissions in order to improve quality of care and reduce unnecessary expenditures,. One attempt to reduce readmissions was implemented on June 1 2012, when the Specialist Services Committee of British Columbia (a partnership of Doctors of BC and the Ministry of Health) introduced the new "G78717" fee code for physicians. The objective of the fee code was to create a financial incentive for physicians to provide a point-of-care supplemental discharge summary to patients and their primary care providers prior to discharge from hospital. Initially, only urgent hospital admissions were eligible for this incentive payment but on Nov 1 2015 the incentive was extended to include elective admissions as well. The other eligibility criteria remained unchanged. The effectiveness and cost-effectiveness of the fee code intervention is unknown. This study will address important questions relevant to this policy intervention using rigorous methods and empirical data. This study will employ two methods for measuring changes in readmission risk. First, we will use interrupted (multivariate) time series to measure whether there was a temporal change in provincial readmission risk associated with the implementation of the new fee code. We will complement the above analyses with a stronger design, comparing hospitalizations for which the fee code was charged (intervention group) with a cohort of clinically similar hospitalizations for which the fee code was not charged (control group). For this approach, multivariate logistic regression will be the primary statistical method. Using this analytic strategy, 30-day readmission risk between the intervention and control group will be measured over time, adjusted for patient-, provider-, and hospitalization-level covariates. Read Less

Total knee arthroplasty is an effective surgical intervention for patients with chronic osteoarthritis commonly performed worldwide. Postoperative pain management has been a key focus in patient care for this procedure. Poorly controlled pain following total knee arthroplasty is associated with decreased ambulation, increased length of hospital stay, increased complications (particularly related to significant opioid use), and overall suboptimal patient recovery. Appropriate postoperative pain management utilizing motor sparing peripheral nerve blocks and periarticular injections has been shown to provide faster, more optimized patient recovery and reduced hospital length of stay in patients undergoing total knee arthroplasty. Adductor canal block (ACB) is a well-studied peripheral nerve block performed for analgesia following total knee arthroplasty. ACB is an effective component of multimodal analgesia providing improved pain control to the peripatellar and intra-articular aspect of the knee joint while largely preserving the strength of the quadriceps muscles1. In addition, perioperative local infiltration analgesia (LIA) performed by the orthopaedic surgical team is a common practice that has been shown to improve short-term postoperative pain relief and reduce total systemic opioid consumption during hospital stay2 for total knee arthroplasty. The Infiltration between the Popliteal Artery and Capsule of the Knee (iPACK) block is a newly described regional anesthesia technique for postoperative analgesia in total knee arthroplasty, performed under ultrasound guidance. It targets the articular branches of the tibial, common peroneal, and obturator nerves in the popliteal region, and aims to provide analgesia to the posterior aspect of the knee joint without compromising lower extremity motor function following total knee arthroplasty. This study aims to determine whether the IPACK block provides additional analgesia (in combination with ACB + LIA) for total knee arthroplasty surgeries. The study will examine how much additional analgesia IPACK provides in the context of an already-optimized regional anesthesia pathway for total knee arthroplasty, which uses ACB + LIA, both modalities that have reasonable existing evidence. Read Less

Frontotemporal dementia (FTD), the most common dementia in individuals younger than 60 years of age, has no disease-modifying treatment. Neuroimaging studies have revealed salience and default mode network dysfunction, frontotemporal atrophy and hypometabolism as pathophysiological hallmarks of behavioral variant FTD (bvFTD). A key brain structure affected by bvFTD is the subgenual cingulate (SGC), which serves as a hub for multi-axonal projections to and from the ventromedial prefrontal, dorsal anterior cingulate, orbitofrontal, and dorsolateral frontal cortices, and limbic structures. The disruption of these SGC projections in bvFTD result in the core clinical features of apathy, disinhibition, loss of empathy, compulsivity, hyperorality and loss of executive function. The central goal of this proposal is to use deep brain stimulation (DBS) for modulation of the SGC downstream projections to treat bvFTD. Investigators hypothesize that SGC DBS will drive activity in the dysfunctional networks, reverse hypometabolism, and potentially improve symptoms. To determine the physiologic effects and mechanisms of SGC DBS, investigators will assess cerebral metabolism by FDG-PET, connectivity by rsfMRI and MEG, atrophy by volumetric MRI, and neurodegenerative and neuroinflammatory biomarkers. The safety and preliminary efficacy data obtained in these patients will inform the possible future role of DBS in apathetic bvFTD. Read Less