The purpose of this study is to assess the safety, tolerability, biomarker, cognitive and clinical efficacy of investigational products in participants with an Alzheimer's disease-causing mutation by determining if treatment with the study drug slows the rate of progression of cognitive/clinical impairment or improves disease-related biomarkers.

The goal of the current study is to measure the requirement for threonine in patients with CD using the IAAO method and compare the requirement to previously determined threonine requirement estimated in young adults using the IAAO technique. It is hypothesize that the requirement for threonine in patients with CD will be higher than the threonine requirement previously determined in young adults using the IAAO method. Up to 10 clinically stable patients with CD will be recruited from the IBD Clinic at Mt. Sinai Hospital, Toronto, and subsequently followed up at the Clinical Research Center (CRC), The Hospital for Sick Children (SickKids), Toronto, Canada. Before the study begins, the participants will be required to visit the CRC (Room 5500 Hill Wing, The Hospital for Sick Children) for a pre-study assessment of their height, weight, fat mass, fat free mass, resting metabolic rate and medical history. These assessments will take about 3 hours to complete. They will need to have been fasted for 10 hours prior to the pre-study assessment. The pre-study assessment is needed to calculate their dietary requirements for the study, and to assess health status. After signing the consent form, the subjects will complete the screening procedures (height, weight, fasting blood sample and medical history questionnaire, BIA, Skinfold and calorimetry). Each study will consist of a 2-day adaptation period to a prescribed diet in accordance with the energy requirement of the subject and 1-study day. The diet will provide an adequate amount of protein, of 1 g protein/kg/d. The 2-day adaptation period is to allow the body to adapt to an adequate amount of protein as it has been shown that protein kinetics is altered without it. Dietary intakes during this time will be provided in the form of lactose-free milk shakes (Scandishake) with added carbohydrate (SolCarb) and protein (beneprotein) to meet the subjects' requirement. Following the 2 days of adaptation is the study day where threonine intake will be randomly assigned and phenylalanine (Phe) kinetics will be measured with the use of isotopically labelled Phe. On this day, VCO2 will be measured by calorimetry immediately after the 5th meal for a period of 20 minutes. On the study day (3rd day of each 3-day period), the diet will be provided as 8 hourly isocaloric, isonitrogenous meals made up of a flavored liquid formula and protein free cookies developed for use in amino acid kinetic studies. Each meal will represent 1/12th of the subject's total daily requirements. The nitrogen (protein) content of the diet will be provided in the form of a crystalline amino acid mixture based on the amino acid composition of egg protein. * A daily multivitamin supplement will be provided during the study period. * No other food or beverages will be consumed on the adaptation days except water, 1 cup clear tea, or 1 cup clear coffee. * During the 8-hr study day, no other food or drink will be consumed except water. * Urine and breath samples will be collected at baseline and at isotopic steady state. * Breath samples will be collected simultaneously with urine samples. * Five baseline breath samples will be collected 60, 45, 30, 15 min, and just before the tracer protocol begins. * Three baseline urine samples will be collected 60, 30 min, and just before the tracer protocol begins. * Four plateau breath samples will be collected every 15 minutes 2.5 h after the tracer protocol begins. * Three plateau breath samples will be collected every 30 minutes 2.5 h after the tracer protocol begin * Breath samples will be collected with subjects breathing into an Exetainers plastic tube and samples will be stored in pre-evacuated glass tubes at room temperature until analysis. * Urine samples will be collected in Eppendorf tubes and stored at - 20 º C until analyzed for 1-13C phenylalanine enrichment. * The rate of CO2 production (VCO2) will be measured on each testing day using a ventilated hood indirect calorimeter at meal 5 to quantify 13CO2 excretion in breath. Subjects can choose to withdraw from the study at any time and for any reason, based on his/her individual judgment. In particular, if a subject is unable to tolerate the diet, whether it is regards to taste, loose stools or constipated stools, he/she has the right to withdraw at any time during the study.

A prospective longitudinal cohort study that will assess the effect of a Personalized Medicine (PM) clinic recommendations on pharmacogenetic variation and/or interacting drugs on plasma drug exposure, effectiveness or toxicity of commonly used antidepressant, pain, and antiemetic medications in cancer patients. Such recommendations will entail genotype-guided treatment suggestions while also considering potential DDI, and will be provided to patients during their clinic visit, and referring physicians thereafter. Drug concentration and therapeutic effectiveness will be assessed before (baseline) and 6 months after recommendations have been provided. To assess effectiveness, patient-reported outcomes will be evaluated using validated scales for symptoms of depression, pain and chemotherapy-induced nausea/ vomiting The investigators hypothesize that the pharmacogenetic variation and DDI, if applicable, determine steady state drug concentration and therapeutic response or toxicity of the investigated antidepressant, pain or antiemetic treatments at baseline, while there is a clinically significant reduction or absence of the effect 6 months after the PM clinic recommendations to referring physicians and patients.

The goal of this pilot trial is to test a protocol for a planned Canada-wide clinical trial looking at whether or not the use of a patients own blood works as good as the current standard of care using donated blood products to reduce blood loss in adult patients having heart surgery. The main questions this study aims to answer are: * Is the protocol practical, effective, and efficient. * Does the use of a patients own blood lower the following: bleeding, the amount donated blood products given, and complications. Participants will be separated into two groups by a process that is like flipping a coin. One group will donate blood to themselves in the operating room and get their own blood back after surgery. The other group will be given blood products donated by other humans to treat the bleeding after heart surgery. Researchers will compare both groups to see if patients that get their own blood have fewer donated blood products given at time of heart surgery and have less complications after surgery.

When a doctor suspects cancer, often a biopsy is taken for testing to confirm if cancer is present. Usually, doctors would wait for the results of a biopsy before delivering radiation, but this may lead to a patient having to wait for a treatment that he or she urgently needs. With long wait times for biopsies in Canada, this may lead to symptoms and risks of complications from cancer in the meantime. Therefore, this study is being done to answer the following question: Is it safe and feasible to deliver radiation before obtaining a biopsy in a carefully selected group of patients who urgently need radiation treatment.

The proposed project aims to develop and validate a multi-dimensional digital active aging program integrated with resilience to promote the biopsychosocial functions of older adults aged 60, including Chinese older immigrants in Canada (Study 1) and English-speaking White Canadian older adults (Study 2). The proposed study takes a typical pretest-training-posttest design. Pretest and posttest: a battery of outcome measures on physical, psychological, and social functions will be administered to all participants. Data will also be used to identify sociodemographic risk predictors for outcome variables (i.e., biopsychosocial functions and resilience). Training: the participants will be randomly assigned to three arms to receive 4 weeks of 16 training/practice/control treatment sessions delivered via Zoom. In the "active aging with resilience (AR)" condition, participants will complete physical, cognitive, and social engagement training modules, starting with a 30-min resilience-building module. The traditional "active aging" (AA) training involves the same multi-domain active aging training without the initial resilience-building module. The "workshop training" (WT) control condition involves workshops following the same 4-week schedule on aging-related topics.

This study aims to analyze the immune profiles of patients with Chronic Rhinosinusitis with Nasal polyps (CRSwNP) with and without asthma before and after Mepolizumab. A group of participants with CRS without nasal polyps (CRSsNP) with asthma will be included to compare their immune profiles to CRSwNP.

Youth in Canada are in need of novel, innovative approaches to support their mental health and wellbeing. Within this age group, research suggests rates of several mental health difficulties and related hospitalizations have increased over recent decades. These challenges are exacerbated in rural communities, such as in Northwestern Ontario, where youth access mental health services less frequently and face longer wait times than those in more urban areas. Such limited access and extended waits can exacerbate symptoms, prolong distress, and increase the risk for adverse outcomes. In partnership with St. Joseph Care Group and Thunder Bay Counselling Centre, the investigators are evaluating the impact of a mental health app (JoyPop) as a tool for youth waiting for mental health services. The JoyPop app was developed to support improved emotion regulation - a fundamental difficulty for youth presenting with mental health challenges and an ability still undergoing maturation during this developmental period. A two-arm randomized controlled trial (RCT) will be used to evaluate the effectiveness of the app compared to usual practice while youth aged 12-17 are waiting for mental health services.

The CAN-PRIME Study is to test the safety and functionality of Neuralink's N1 Implant and R1 Robot in people who have difficulty moving their arms and legs (tetraparesis or tetraplegia). The N1 Implant is a small, wireless device placed in the skull. It connects to tiny threads inserted into the brain by the R1 Robot, which is a machine designed to carefully place these threads. This study will help researchers learn how well the implant and robot work and if they are safe for use.

Biliary tract cancer (BTC) accounts for \<1% of all cancers, but remains a highly fatal malignancy. Surgical resection is the only hope for cure, but most patients present with advanced disease when curative-intent surgery is not possible. The therapeutic options for patients with advanced disease are limited, primarily to chemotherapeutic regimens, which are based on empiric evidence without the use of biomarkers. These current treatment strategies have been largely ineffective in controlling the disease, resulting in poor survival outcomes of less than 1 year. An understanding of the molecular characteristics of biliary tract cancer may enable stratification of patients into therapies that target specific molecular alterations with greater efficacies and improved clinical outcomes. This study aims to investigate the feasibility and clinical utility of prospective molecular profiling of advanced biliary tract cancer. The primary endpoint of this study is to demonstrate the feasibility of returning whole genome sequencing results within 8 weeks of tumour biopsy for second-line treatment consideration (n=30 patients). In parallel, tumour whole transcriptome sequencing will be performed to identify actionable molecular alterations (e.g., fusion transcripts). Once the primary endpoint is met, the study will be expanded. Current funding allows expansion to 40 patients in total.