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.
Children treated by bone marrow transplantation (BMT) experience bone toxicity. Those bone damages are caused by both a decrease of bone formation and an increase of bone destruction after BMT.For long term survivors, bone complications are major determinants of impaired quality of life. No standard treatment currently exists to prevent those bone injuries. Denosumab is a treatment which specifically blocks bone destruction for 4 to 6 months in adults. This trial will study whether it is safe to prescribe Denosumab to children after BMT in the aim of preventing bone complications.
MicroPort Orthopedics (MPO) is conducting this study to investigate the primary stability of its PROFEMUR® Preserve Femoral Components using radiostereometric analysis (RSA). RSA allows precise measurement of micromotion around orthopedic implants and hence, may estimate long-term fixation to bone.
Cancers located in the upper aerodigestive tract of the head and neck region present unique management challenges due to the crucial functions in this anatomic region along with its anatomic density. As such, cancers themselves and the actual treatment can affect these functions. Of these, the ability to effectively and safely transport a swallow bolus from the oral cavity to the esophagus is particularly important. This consideration has in fact been a major source of debate regarding the optimal management for head and neck cancers as both oncologic-effective and function-preserving therapies are desired. Accomplishing this therapeutic goal has been elusive and can be attributed to a lack of tools that effectively and longitudinally evaluate swallow function over the course of a treatment and in follow-up. As such, investigators surprisingly lack a clear understanding of the natural history of treatment -related swallow dysfunction (dysphagia) regardless of the treatment modality. As such, understanding the prevalence of this significant complication is in fact not well established. Understanding the true prevalence of treatment-related dysphagia is in fact critical to establish as it will help guide decisions as to whether or not treatment strategies require modification including de-intensification of treatment that is receiving considerable attention for favourable prognosis patients associated with the human papillomavirus (HPV). To address this problem, winvestigators hypothesize that the quantitative and validated patient-reported outcome (PRO) instrument, the Sydney Swallow Questionnaire (SSQ), can be an effective tool to longitudinally measure swallow function to determine the natural history of head and neck cancer treatment-related swallow dysphagia. The SSQ is particularly well suited for longitudinal evaluation of swallow function as it quantifies various aspect of patient-perceived swallow function in contrast to other swallow PROs that measure the impact of swallow function on quality of life domains. To determine the two-year prevalence of dysphagia, investigators will employ a multi-institution prospective study design using our Oncospace® web-portal to facilitate secure prospective data curation and analysis that will include evaluations before, during and following standard of care definitive cancer treatment for a total of 36 months in the follow-up period.
This is a multicentre, phase II, randomized, open label study to evaluate the efficacy and safety of monthly Radium 223 in prolonging the off treatment interval of men with localized prostate cancer receiving intermittent androgen ablation therapy for a rising PSA post-radiation or post-prostatectomy, who are at high risk for occult metastases.
The primary purpose of this study is to assess the long-term safety profile of RCT-01 injections as compared to placebo injections. This study will also measure the long-term impact these injections will have on tendon structure and function and the symptoms of Achilles tendinosis. This is study is designed to follow participants who have completed participation in a clinical trial where they received injections of either RCT-01 or placebo in the Achilles tendon. No clinical interventions will be performed as part of study procedures. The day of study entry (Visit 1) will be coordinated with the participant's final visit in the earlier clinical trial. All participants will return to the clinic for repeat assessments of their Achilles tendinosis and overall health 6, 12 and 18 months after study entry. Furthermore, they will complete 'telephone visits'; during which they will report information on their overall health; 3, 9, and 15 months after study entry. Total duration of patient participation is approximately 18 months.
Prostate cancer is the most common malignancy among men in the United States and Canada. Suspicion of prostate cancer with modern screening tests, such as digital rectal exam (DRE) and prostate serum antigen (PSA) require ultrasound-guided biopsy for pathological diagnosis. However, this technique misses cancer in nearly one quarter of patients and finds clinically insignificant disease in another third of patients, resulting in over-treatment and unnecessary morbidity. MRI is the best imaging method for prostate cancer detection, but current techniques cannot reliably predict tumour grade and are often unreliable for localizing cancer, particularly within the transition zone, where specificity is low. The primary objective of this pilot study is to evaluate the added benefit of localizing prostate cancer and predicting tumour grade with Hyperpolarized 13C MRI, in addition to traditional T2-weighted and diffusion-weighted MR imaging. The investigators propose a pilot study, in men diagnosed with prostate cancer awaiting prostatectomy, with the specific goals of comparing pre-operative imaging findings to ground truth histology, using whole-mount prostate specimens. The results of this study will provide insight into the prostate cancer disease signatures with MRI and determine if there is added benefit for incorporation of this new technique into future clinical MRI protocols. If future imaging tests could determine the size, grade and extent of disease, this would open the door for less invasive, localized treatment options with reduced morbidity.
Opioid dependence and its associated harms are becoming increasingly prevalent in North America, with overdose now being the second leading cause of accidental death in the US. This pilot study will investigate the feasibility of a novel mobile device to monitor vital signs in both opioid-injecting individuals and hospital inpatients who are on high-dose oral opioids. A secondary goal is to explore associations between consumption and changes in vital signs post-injection with the long-term goal of developing a mobile system that will alert clinicians when patients are at risk of overdose so that appropriate interventions can be delivered in time.
It is common practice to insert a Foley catheter into the bladder to drain urine during and after a lung resection. Recently, there has been increasing interest in the potential risks associated with this catheterization, particularly with regard to infection. As thoracic surgery adopts minimally invasive surgical techniques, the need for urinary catheterization during surgery is being questioned since these less invasive surgeries are known to result in less post-operative acute pain, shorter length of stay, and other outcomes that tend to decrease overall anesthetic needs for this patient population. Thus, there is a need to investigate whether patients who have had a minimally invasive lung resection truly need the Foley catheter at all. This will be achieved by assigning patients to either an experimental no-catheter group or the standard of care routine urinary catheter group to determine if patients with no catheter experience different rates of complications. This pilot study will primarily determine if there is a difference in post operative urinary complications between the groups. It is hoped that this study will definitively determine whether a Foley urine catheter is a necessary procedure in the course of a minimally invasive lung resection.
Laparoscopic partial nephrectomy (LPN) is often reserved for patients with a small peripheral tumour, in the hands of an experienced surgeon since it demands a high degree of endoscopic skill. Renal vessel clamp for vascular control is a required step during standard LPN. However, this creates a time limiting step for the surgeon and induces renal injury via warm ischemia and reperfusion injury. This novel approach can substantially reduce renal injury during LPN via superselective embolization of level II renal arteries pre-operatively. This technique facilitates the performance of a clamp-less, zero-ischemia LPN, significantly simplifying the procedure by remove time thresholds within which to perform tumor excision. The preliminary results are promising; however, there is a need for further corroboration of their results, in addition to a randomized controlled trial comparing this modified, zero ischemia technique with standard LPN.
This study explores the effect of zoledronic acid on incident vertebral fractures and osteonecrotic lesions in children recently diagnosed with acute lymphoblastic leukemia.