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.
Health Issue: Bronchopulmonary dysplasia (BPD), a chronic lung disease, is the most common complication of being born premature. Damage to the still developing lung stops the normal formation of the alveoli. Young adults with a history of BPD have lower lung function, early heart disease, and increased risk of death, compared to those without BPD. Recently, it has been reported that they may also develop a type of lung disease typically seen in older adults with a longstanding history of smoking. The severity of lung disease is usually measured using pulmonary function tests (PFT), but these tests may be normal, even in the presence of important changes in the fine structure of the lung. Such structural changes may be early markers of future lung disease and can be detected using lung magnetic resonance imaging (MRI). Unlike other ways of imaging the lungs, MRI does not expose people to harmful X-rays. To date, no studies have been done to examine the fine structure of the lung of school-aged children who had a history of BPD, to determine whether there are signs of lung disease that might not otherwise be obvious. This is important because once armed with this information, preventive measures can be taken to avoid worsening of lung disease. Objective: 1) In 7-9 year-old children born extremely premature, lung MRI will be compared between those with and without BPD. The Investigators expect to observe more severe structural lung abnormalities in children with BPD, compared to those without BPD; 2) The Investigators will test to see if children with more severe MRI abnormalities also have worse lung function, and/or more symptoms of breathing problems. The Investigators expect to observe more PFT abnormalities in children with BPD than in those without and that these will match up with lung fine structure abnormalities identified on MRI. How will work be undertaken? Children 7-9 years old who were born extremely prematurely will be recruited to participate in this study. Participants will be identified from Neonatal Follow-up clinics they attended. The Investigators will enroll 20 children with BPD and 20 without BPD. Participants will have lung MR images taken, during which they need to lie still for a few minutes. PFT will also be performed, during which they will blow into a machine. Parents will be asked to complete questionnaires about breathing problems, their living conditions (environment) and any doctor visits or hospital stays. Medical charts will be reviewed for information about their birth. Unique/Innovative Aspects: This will be the first study using MRI as an innovative way to visualize and measure fine structure of the lung in children born prematurely with and without BPD. These findings may be early markers of lung disease, which would identify children who have, or are at risk of developing lung disease later in life, for whom the Investigators may be able to offer treatments now and/or prevent worsening of lung disease.
In this study, potential associations between several genetic polymorphisms and nicotine dependence will be examined. The relative reinforcing efficacy of cigarettes using the forced-choice procedure will be assessed. In addition, reactivity to smoking cues using a reliable procedure will be conducted.
This second phase of a pilot study (non-drug) will examine the effectiveness and feasibility of Telephone based Cognitive Behavioural Therapy (Tele-CBT) as an additional treatment to the usual standard of care in bariatric surgery patients. Participants one year post-surgery will receive six sessions of Tele-CBT and complete measures before, during, immediately after, and one year after participation in the study.
Multicenter, randomized, open-label, parallel-group study of guadecitabine vs treatment choice (TC). Participants will be randomly assigned in a 1:1 ratio to either guadecitabine or TC. TC options include the 8 high or low intensity, locally available regimens below; or Best supportive Care (BSC) alone: - High intensity (intermediate or high dose cytarabine [HiDAC]; mitoxantrone, etoposide, and cytarabine [MEC]; or fludarabine, cytarabine, granulocyte colony stimulating factor [G-CSF], +/- idarubicin [FLAG/FLAG-Ida]). - Low intensity (low dose cytarabine [LDAC], decitabine, or azacitidine). - BSC.
The feasibility of using the Apnea Risk Evaluating System (ARESTM) device to take longitudinal measures of sleep parameters in asymptomatic men with prostate cancer who are about to initiate androgen deprivation therapy (ADT) will be evaluated. Study participants will complete serial questionnaires relating to sleep quality, hot flashes, and quality of life.
Radiation therapy is an important adjunct in the treatment of patients with glioma, although a common side effect is radiation-induced injury of brain parenchyma. Unfortunately, conventional MRI is not accurate in differentiating radiation-induced brain injury from recurrent tumour, both of which may demonstrate progressive contrast enhancement. Recent studies have suggested that perfusion MRI could improve this differentiation. Perfusion MRI can be performed with an injection of exogenous contrast using dynamic contrast enhancement (DCE) or dynamic susceptibility contrast enhancement (DSC). Perfusion MRI can also be performed without contrast injection using arterial spin labeling (ASL) or intravoxel incoherent motion (IVIM). DCE-MRI relies on accurate measurement of T1 values in order to convert the MRI signal intensity to contrast concentration. Dynamic susceptibility-weighted contrast enhancement (DSC) perfusion is the most common technique used in clinical practice but measurement of tumor relative cerebral blood volume (rCBV) can be biased by extravascular contrast leakage and susceptibility-weighted artifacts. The purpose of this study is to evaluate the accuracy of perfusion MR imaging using non-contrast and contrast-based techniques in differentiating recurrent tumour from radiation-induced brain injury in patients with known high grade glioma. The investigators will compare the accuracy of IVIM, ASL, DCE and DSC techniques. A secondary goal of the study is to compare two new different T1 mapping methods used for DCE-MRI.
To determine the feasibility and effectiveness of a RCT of an adapted DBT group delivered to individuals with ID and emotional dysregulation.
Lung isolation technique and one-lung ventilation (OLV) are the mainstays of thoracic anesthesia. Two principal lung isolation techniques are mainly use by clinicians, the double lumen tubes (DLT) and the bronchial blockers (BB). The physiology of lung collapse during OLV is not well described in the literature. Few publications characterized scant aspects of lung collapse, only with the use of DLT and sometime in experimental animals. Two phases of lung collapse have been described. The first phase is a quick and partial secondary to the intrinsic recoil of the lung. The second phase is the reabsorption of gas contained in the alveoli by the capillary bed. The investigators plan to describe the physiology of the second phase of lung deflation using of DLT or BB, in a human clinical context.
The purpose of this study is to examine the effect of varying nitrate doses of beetroot juice supplementation on dynamic, multijoint resistance exercise performance in active, trained individuals. Performance will be assessed based on parameters including neuromuscular efficiency, anaerobic performance capability, oxygen consumption, plasma nitrate/nitrite levels, specific muscle tissue biomarkers including lactate, and anthropometric measurements of select muscle groups.
The purpose of the study is to assess functionality, performance, and reliability of an single-use auto-injector (AI) with benralizumab administered subcutaneously (SC) in an at-home setting reported by the patient or caregiver, and to confirm the safety and clinical benefit of benralizumab administration in asthma patients with severe asthma