There are about 28871 clinical studies being (or have been) conducted in Canada. The country of the clinical trial is determined by the location of where the clinical research is being studied. Most studies are often held in multiple locations & countries.
Patent ductus arteriosus (PDA) is the most common cardiovascular problem that develops in preterm infants. Persistent PDA may result in higher rates of death, chronic lung disease (CLD), pulmonary hemorrhage, necrotizing enterocolitis (NEC), acute kidney injury (AKI), intraventricular hemorrhage (IVH) and cerebral palsy. Currently available options to treat a PDA include indomethacin, ibuprofen or acetaminophen followed by surgical or interventional closure of the PDA if medical therapy fails. Wide variation exists in PDA treatment practices across Canada. A survey conducted through the Canadian Neonatal Network (CNN) in 2019 showed that the most common choice of initial pharmacotherapy is standard dose ibuprofen. In view of the high pharmacotherapy failure rate with standard dose ibuprofen, there is a growing use of higher doses of ibuprofen with increasing postnatal age (with 32% of respondents currently adopting this practice) in spite of the fact that effectiveness and safety of higher ibuprofen doses have not been established in extremely preterm infants [<29 weeks gestational age (GA)]. In view of this large practice variation across Canadian neonatal intensive care units (NICUs), we are planning a comparative effectiveness study of the different primary pharmacotherapeutic agents used to treat the PDA in preterm infants. Aims Primary: To compare the primary pharmacotherapeutic practices for PDA closure and evaluate their impact on clinical outcomes in extremely preterm infants (<29 weeks GA) Secondary: To understand the relevance of pharmacotherapeutic PDA treatment with respect to clinical outcomes in the real world. Methods: Participants: Extremely preterm infants (<29 weeks gestational age) with an echocardiography confirmed PDA who will be treated according to attending team Interventions: 1. Standard dose ibuprofen [10-5-5 regimen, i.e., 10mg/kg followed by 2 doses of 5mg/kg at 24h intervals] 2. Adjustable dose ibuprofen [10-5-5 regimen if treated within the first week. Higher doses of ibuprofen up to a 20-10-10 regimen if treated after the postnatal age cut-off for lower dose as per the local center policy] 3. Intravenous indomethacin [0.1-0.3mg/kg every 12-24h for a total of 3 doses]. 4. Acetaminophen [Oral/intravenous] (15mg/kg every 6h) for 3-7 days Outcomes: Primary: Failure of primary pharmacotherapy (Need for further medical and/or surgical/interventional treatment following an initial course of pharmacotherapy). Secondary: (a) Receipt of 2nd course of pharmacotherapy; (b) Surgical/interventional PDA closure; (c) CLD (d) NEC (stage 2 or greater) (e) Severe IVH (Grade III-IV) (f) Definite sepsis (g) Stage 1 or greater AKI; (h) Post-treatment serum bilirubin; (i) Phototherapy duration; (j) All-cause mortality during hospital stay.
Families who experience maternal mental illness and a variety of chronic stressors are currently underserved by the parenting programs. The investigators propose that impairments in maternal self-regulation, which result in unsupportive parenting, directly impact children's own self-regulation and neurobiology, leading to risk for intergenerational transmission of mental illness. The objective of this study is to develop and evaluate a program that is targeted at improving underlying self-regulatory mechanisms in both mothers with depression and their 3 to 5-year-old children. It is hypothesized that children exposed to maternal mental illness will have greater self-regulatory deficits across emotional and behavioural domains, compared to children not exposed to mental illness. The effects of maternal mental illness are expected to be compounded for children of mothers reporting a higher degree of chronic stressors, including poverty, housing instability, violence, and low social support. Further, it is hypothesized that taking a dual-generation intervention approach to addressing self-regulatory mechanisms underlying psychopathology at the level of the mother, child, and dyad (i.e. parenting interactions) will improve both maternal capacities and child outcomes. The objectives for this study are to 1) establish a better understanding of the self-regulatory processes that are altered in preschool-aged children exposed to maternal mental illness, and determine the mediating role of parenting behaviours, as well as the moderating impact of chronic stress exposure; and 2) develop and evaluate a novel dual-generation intervention for mothers with mental illness and their 3 to 5-year-old children based on existing gold-standard evidence-based approaches.
Dementia is a term used to describe a collection of symptoms including memory loss, problems with reasoning and communication, and a reduction in a person's ability to carry out daily activities. The most common types of dementia are: Alzheimer's disease, vascular dementia, mixed dementia and dementia with Lewy bodies. Clinicians and families are looking for ways to deal with this challenging group of diseases to improve quality of life, reduce depression and agitation for individuals in long term care (LTC). There are a variety of non-pharmacologic interventions for dementia often used in addressing physiological and behavioral challenges, new to this category of treatment is virtual reality (VR). Virtual reality has been studied in mild cognitive impairment. Colleagues completed a systematic review of non-pharmacological intervention to treat older people with dementia and found music to be the only intervention effective, VR was not included as no studies were found. The Registered Nurses Association of Ontario report non-pharmacological approaches are an important alternative to the use of antipsychotic medications. They recommend health-care providers should consider non-pharmacological interventions wherever possible as a first-line approach to the management of BPSD. Virtual reality as proposed in this research will include music, library items will be selected that are person specific, and will provide sensory stimulation. To date there is no published research on the use the VR in moderate to severe dementia in LTC, looking at depression.
Background There are significant limitations in the current approaches to assessing 2 important areas of cardiovascular physiology - the systemic circulation and left ventricular (LV) performance. The investigators' have repurposed the concepts of "systemic vascular conductance" to assess systemic circulation, and the "head capacity principle" to assess LV performance. The investigators' now seek to test these concepts in human adults, with heart failure and without heart failure, using non-invasive methods. Hypothesis There will be a depressed head-capacity curve and reduced power among patients with heart failure which will indicate compromised left ventricular pump function. Methods The research study will involve a single outpatient visit per subject. The study will take place with the subject supine on a bed/table. The subjects will be instrumented with EKG electrodes and finger blood pressure cuffs. The continuous finger BP device performs a waveform analysis in real-time to determine the non-invasive stroke volume, cardiac output, and blood pressure. The patient will be supine for at least 5 minutes to collect baseline data before being handed a dynamometer device. The subject will then be asked to squeeze the dynamometer with maximum force for a minimum of 2 minutes while only engaging their forearm and remaining relaxed in the rest of their body. The subject will then release the dynamometer and remain supine, in recovery, for a minimum of 5 minutes. Following the handgrip test, the instrumentation will be removed and the patient's participation in the study will be complete. The study duration should be about 20 min.
The objective of this study is to quantify motor performance, this study will use an eye movement Fitts' task to examine the effects of cervical spine manipulation on participants with chronic neck pain and the subsequent changes to saccade movement time. This study will also include a head movement Fitts' task which has previously reported a reduction in head movement time in chronic neck pain participants after cervical spine manipulation. This is an observational within-subjects design that involves a pre/post cervical spine manipulation intervention on participants (n=20) with chronic neck pain and asymptomatic controls (n=20). All participants will complete an eye movement and head movement Fitts' task before and after cervical spine manipulation to identify any changes in saccade and head movement time, saccade and head peak velocity, and time to peak saccade and head velocity.
HIV (human immunodeficiency virus) can have subtle but important effects on the brain, leading to difficulties in memory, concentration, or problem solving. Goal-setting interventions have been shown to help individuals maintain their physical activity in order to improve brain health. The study objective is to estimate the extent to which goal management training before a personalized healthy lifestyle program is associated with greater adherence to health recommendations, achievement of health-related goals, and better brain health and general health outcomes compared to the healthy lifestyle program alone. Participants will be randomized to either Goal Management Training (GMT) and a Healthy Lifestyle Program (HLP) or the control group (HLP alone).
This is a randomized, double-blind, double-dummy, active-controlled, multi-center study to assess the efficacy and safety of abrocitinib 200 mg (2 x 100 mg tablets) administered orally QD compared with dupilumab 300 mg administered by subcutaneous injection every other week (as per label guidelines) in adult participants on background topical therapy, with moderate to severe AD. The treatment duration is 26 weeks. A total of approximately 600 participants will be enrolled from approximately 220 sites globally. Approximately 600 participants will be randomly assigned to study intervention. There are primary efficacy assessments at Week 2 and Week 4, and a key secondary efficacy assessment at Week 16. Efficacy and safety endpoints will be assessed throughout the entire study. Exploratory endpoints related to hand eczema efficacy will be assessed throughout the study.
Patients presenting to the emergency department, or needing hospitalization, for a variety of medical conditions often require non-invasive ventilation (breathing support). For example, for a person with shortness of breath as a complication of COPD (Chronic obstructive pulmonary disease) the gold standard of care requires application of a BiPAP machine. However, in the current environment of COVID-19, the aerosols produced by this machine in a COVID-19 positive patient pose serious potential harms to healthcare providers and other patients. All patients with similar symptoms to COVID-19 need to be treated as positive until definite testing determines otherwise. The best test available for COVID-19 takes up to 4 hours to determine the patients status, which is too long to delay application of a BiPAP. This could lead to either a delay in care or the need for invasive breathing measures (intubation), which requires intense resource utilization, may not be in line with a patient's goals of care, and could cause serious harms (i.e. infection, medication reactions, etc.) in patients who do not need it. The use of a closed-loop BiPAP machine in which no expired air is released into the environment would solve these problems. Building off the failures of a similar approach that was trialed in Italy in response to the COVID-19 crisis, this project will develop and test a novel closed-loop BiPAP system.
The Post discharge after surgery Virtual Care with Remote Automated Monitoring technology (PVC-RAM) Trial is a multicentre, parallel group, superiority, randomized controlled trial to determine the effect of virtual care with remote automated monitoring (RAM) technology compared to standard care on days alive at home during the 30-day follow-up after randomization, in adults who have undergone semi-urgent (e.g., oncology), urgent (e.g., hip fracture), or emergency (e.g., ruptured abdominal aortic aneurysm) surgery. It will also determine, during the first 30 days, the effect of virtual care with RAM technology on several secondary outcomes, including: 1. hospital re-admission; 2. emergency department visit; 3. urgent-care centre visit; 4. acute-hospital care (i.e., a composite of hospital re-admission and emergency department or urgent-care centre visit) 5. brief acute-hospital care (i.e., acute-hospital care that lasts <24 hours); 6. all-cause hospital days; 7. medication error detection; 8. medication error correction; and 9. death. An additional secondary objective is to determine the effect of virtual care with RAM technology on pain at 7, 15, and 30 days and 6 months after randomization.
Refractory epilepsy, meaning epilepsy that no longer responds to medication, is a common neurosurgical indication in children. In such cases, surgery is the treatment of choice. Complete resection of affected brain tissue is associated with highest probability of seizure freedom. However, epileptogenic brain tissue is visually identical to normal brain tissue, complicating complete resection. Modern investigative methods are of limited use. An important subjective assessment during surgery is that affected brain tissue feels stiffer, however there is presently no way to determine this without committing to resecting the affected area. It is hypothesized that intra-operative use of a tonometer (Diaton) will identify abnormal brain tissue stiffness in affected brain relative to normal brain. This will help identify stiffer brain regions without having to resect them. The objective is to determine if intra-operative use of a tonometer to measure brain tissue stiffness will offer additional precision in identifying epileptogenic lesions. In participants with refractory epilepsy, various locations on the cerebral cortex will be identified using standard pre-operative investigations like magnetic resonance imagin (MRI) and positron emission tomography (PET). These are areas of presumed normal and abnormal brain where the tonometer will be used during surgery to measure brain tissue stiffness. Brain tissue stiffness measurements will then be compared with results of routine pre-operative and intra-operative tests. Such comparisons will help determine if and to what extent intra-operative brain tissue stiffness measurements correlate with other tests and help identify epileptogenic brain tissue. 24 participants have already undergone intra-operative brain tonometry. Results in these participants are encouraging: abnormally high brain tissue stiffness measurements have consistently been identified and significantly associated with abnormal brain tissue. If the tonometer adequately identifies epileptogenic brain tissue through brain tissue stiffness measurements, it is possible that resection of identified tissue could lead to better post-operative outcomes, lowering seizure recurrences and neurological deficits.