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.
Brief Summary: Retrospective study to evaluate the clinical performance of two restorative materials - glass-ionomer (GI) and resin-modified glass-ionomer (RMGI) materials - in Class V carious and non-carious cervical lesions restored by dental students.
COVID-19 patients who develop severe disease often develop acute respiratory distress syndrome (ARDS) as a result of a dysregulated immune response. This in turn stimulates a pro-inflammatory cascade ("cytokine storm") as well as emergency myelopoiesis. This proinflammatory cascade is activated when viral-mediated cell damage occurs in the lungs, resulting in the release of damage-signaling alarmin molecules such as S100A8/A9 (Calprotectin), HMGB1, Resistin, and oxidized phospholipids. These damage-associated molecular patterns (DAMPs) are recognized by the pattern recognition receptor Toll-Like Receptor 4 (TLR4) found on macrophages, dendritic cells and other innate immune cells and result in additional release of pro-inflammatory molecules. Several recent studies have shown that S100A8/A9 serum levels in hospitalized COVID-19 patients positively correlate with both neutrophil count and disease severity. Taken together the DAMP-TLR4 interaction forms a central axis in the innate immune system and is a key driver of the pathological inflammation observed in COVID-19. We hypothesis that targeting the initial step in the signalling pathways of these DAMPs in innate immunity offers the best hope for controlling the exaggerated host response to SARS-CoV-2 infection. EB05 has demonstrated safety in two clinical studies (>120 patients) and was able to block LPS-induced (TLR4 agonist) IL-6 release in humans. Given, this extensive body of evidence we believe EB05 could ameliorate ARDS due to COVID-19, significantly reducing ventilation rates and mortality.
LOVIT-COVID is a multicentre concealed-allocation parallel-group blinded randomized controlled trial to ascertain the effect of high-dose intravenous vitamin C compared to placebo on mortality or persistent organ dysfunction at 28 days in hospitalized COVID-19 patients.
Although erector spinae plane (ESP) block reportedly provides postoperative pain relieve, controversy remains regarding the accuracy and consistency of analgesic success following ESP block. The goal of this study is to determine the extent and duration of clinical neural blockade following an ESP injection with different local anesthetic doses. Methods Twenty four healthy volunteers will be recruited, and each subject will make 2 separate visits to the study centre to undergo intervention and assessment. The 2 study visits will be separated by an interval of at least 2 weeks to ensure complete washout of any residual effects and a return to baseline status. At each study visit, the subject will receive a unilateral ESP block with 1.5% lidocaine and 5 mcg/mL epinephrine. Two different local anesthetic volumes will be investigated: 20 mL (300 mg lidocaine) at one study visit and 30 mL (450 mg lidocaine) at the other study visit. Volunteers will be randomized to one of two intervention groups: (1) Group 20/30: A unilateral ESP block with 20 mL of local anesthetic at the first visit, and 30 mL of local anesthetic at the second visit; or (2) Group 30/20: a unilateral ESP block with 30 mL of 1.5% lidocaine with 1/200,000 epinephrine at the first visit, and 20 mL of the same local anesthetic solution at the second visit. There will be 2 study subgroups based on the vertebral level at which the ESP block is administered: (1) Volunteer subjects in subgroup TP4 will receive the ESP block injection at the T4 transverse process (TP4) level in order to evaluate the anesthetic effect on the chest wall. (2) Volunteers in subgroup TP8 will receive the ESP block injection at the T8 transverse process (TP8) level in order to evaluate the anesthetic effect on the abdominal wall. The first 10 volunteer subjects recruited will receive ESP blocks at the TP4 level and the subsequent 10 subjects will receive ESP blocks at the TP8 level.
This is a Phase 3, open-label study to evaluate the long-term safety and tolerability of valbenazine, and to provide participants continued access to valbenazine for the treatment of chorea associated with Huntington disease.
Internet-based health promotion programs have the potential to reach more individuals than in person interventions, without overtaxing healthcare resources. Having a high quality, user-centered web-based program can help maximize user engagement and adherence. Thus, the primary objective of this pilot study is to examine the feasibility, time, cost, and acceptability of a web-based physical activity behavior change program with Canadian Adults who have had to start practising/following the social distancing guidelines due to the COVID-19 situation. We will also be examining changes other behavioral indicators related to PA as a secondary outcome measure.
The COPE Trial is a randomized controlled trial that will provide currently isolated yet generally physically healthy 18-64 year old adults who are pre-retirement with the opportunity to receive a free 3-month subscription to either a yoga or moderate-to-high intensity aerobic exercise app or be randomized to a waitlist control group. Study outcomes include measures of psychological wellbeing and physical health.
The clinical picture of the novel corona virus 2 (SARS-CoV-2) disease (COVID-19) is rapidly evolving. Although infections may be mild, up to 25% of all patients admitted to hospital require admission to the intensive care unit, and as many as 40% will progress to develop severe problems breathing due to the acute respiratory distress syndrome (ARDS). ARDS often requires mechanical ventilation, with a 50% risk of mortality. Researchers at the Ottawa Hospital Research Institute (OHRI) have been studying the potential therapeutic role of mesenchymal stromal/stem cells, or MSCs, for the treatment of ARDS for over a decade. This has led to the world's first clinical trial using MSC therapy for patients with severe infections (sepsis) which is often associated with ARDS (NCT02421484). This trial demonstrated tolerability, and potential signs of efficacy. In addition, the investigators have established expertise in producing clinical-grade MSCs and have received approval from Health Canada for the use of MSCs in three different clinical studies. This protocol consists of 2 sequential trials using the same trial infrastructure, noted as the Phase 1 trial 'CIRCA-1901' and the Phase 2a trial 'CIRCA-1902'. CIRCA-1901 is an open-label, dose-escalating and safety trial using a 3+3+3 design to determine the safety, and maximum feasible tolerated dose of repeated delivery of Umbilical Cord Mesenchymal Stromal Cells (UC-MSC) intravenously. The investigators will enroll up to 9 patients; each receiving repeated unit doses of UC-MSCs delivered by IV infusion on each of 3 consecutive days (24±4 hours apart) according to the following dose-escalation schedule (3 patients per dose panel): (i) Panel 1: 25 million cells/unit dose (cumulative dose: 75 million MSCs), (ii) Panel 2: 50 million cells/unit dose (cumulative dose: 150 million MSCs), (iii) Panel 3: up to 90 million cells/unit dose (cumulative dose: up to 270 million MSCs). If no safety issues are identified, we will continue to the Phase 2a trial. CIRCA-1902 is a single-arm, open-label extension of the CIRCA-1901 trial to assess early signs of efficacy (major morbidity and mortality). The Phase 2a trial (CIRCA-1902) will enroll 12 patients to assess early signals of benefit on mortality and major morbidity in a high risk, high mortality population.
This study evaluates the feasibility of using thermal blankets to actively warm massively bleeding trauma patients at Sunnybrook Health Sciences Centre. It is hypothesized that either full thermal blankets or half thermal blankets will be a feasible intervention to implement for the care of massively bleeding trauma patients.
The purpose of this study is to compare infection rates when patients, elected for primary or aseptic revision THA / TKA, have a single intravenous antibiotic dose versus one single intravenous antibiotic dose in combination with intra-articular antibiotics. This is a prospective, randomized clinical survey on selected outcome measurements on 1834 subjects who will be recruited in a period of about 2 years.