Ottawa Hospital Research Institute

This study tests a personalized virus therapy (bacteriophage) combined with antibiotics in one patient with a chronic, drug-resistant hip joint infection. The patient has no other good options left—without treatment, the infection could be fatal or require leg amputation. The goa…

This study tests whether a new surgical irrigation solution called XPERIENCE can lower the risk of joint infection after hip or knee replacement better than the standard dilute Betadine wash. About 7,600 adults having primary hip or knee replacement will be randomly assigned to r…

This study compares two blood thinners, rivaroxaban and apixaban, to see which causes less bleeding in people with atrial fibrillation (an irregular heartbeat). About 3,000 adults who need to start blood thinners will take one of the two drugs. The goal is to find which medicatio…

This phase 3 trial is testing whether a personalized program of supplements (vitamin D, mushroom extract, fish oil, probiotics, and whey protein) plus lifestyle coaching can improve recovery and quality of life for people undergoing surgery for lung, stomach, or esophageal cancer…

This phase 3 trial is testing whether a 4-week low-dose steroid regimen, given alongside standard drugs like rituximab or cyclophosphamide, is safer and as effective as the usual longer steroid treatment for ANCA vasculitis with severe kidney problems. The study will enroll 36 pe…

This pilot study tests whether omeprazole, a common heartburn drug, can reduce gastrointestinal bleeding in adults 65 and older who take blood thinners for blood clots. Researchers will enroll 360 participants to see if a larger trial is feasible. The study focuses on recruitment…

This study is testing whether adding rosuvastatin (a common cholesterol-lowering drug) to standard blood thinner treatment can lower the risk of another blood clot in people who have recently had a deep vein thrombosis or pulmonary embolism. About 2,700 participants will receive …

This study tests whether a drug called tranexamic acid can safely replace routine platelet transfusions in adults receiving a stem cell transplant for blood cancers. About 662 participants will either get tranexamic acid or standard platelet transfusions. The goal is to see if th…

This pilot study is testing whether a low dose of colchicine, a drug usually used for gout, can reduce the risk of post-thrombotic syndrome (PTS) after a deep vein thrombosis (DVT) in the leg. PTS can cause chronic pain, swelling, and skin changes. The trial will enroll 150 adult…

This study tests whether using a portable heart monitor for 15 days after a fainting episode can detect dangerous heart rhythms that standard short-term monitoring might miss. About 580 adults who fainted and are at medium or high risk will be randomly assigned to either usual ca…

This study aims to find people who have asthma or COPD but don't know it yet. Participants will take an online questionnaire to see if they are at risk. Those at risk will be randomly assigned to receive early diagnosis and treatment from their doctor or usual care. The goal is t…

This pilot study looks at whether taking the chemotherapy drug temozolomide at a specific time of day (morning or evening) is practical for people with glioblastoma, a type of brain cancer. Fifty adults who have completed surgery and radiation will be randomly assigned to take th…

This study tests a home-based program of exercise, nutrition advice, and breathing exercises before surgery to see if it reduces disability three months after the operation. Half of the 902 participants will follow the program using an online platform, while the other half will r…

This trial tests whether women with early-stage breast cancer can safely skip a drug called G-CSF during part of their chemotherapy to reduce bone pain. About 242 participants will either receive or skip G-CSF after paclitaxel infusions. The main goal is to see if skipping it low…

This study tests whether modafinil, a drug that promotes wakefulness, can reduce severe fatigue and thinking problems in people with advanced cancer. About 40 adults with stage III or IV cancer will receive either modafinil or a placebo for a short time. The goal is to see if the…

This study compares two ways to treat chronic sinusitis with nasal polyps: a new in-clinic procedure done under local anesthesia versus standard sinus surgery in an operating room. Researchers will enroll 140 adults to see if the in-clinic approach controls symptoms just as well,…

This phase 1 trial tests whether a fractional CO2 laser can safely reduce the scar tissue that causes penile curvature in Peyronie's disease. Sixty men with stable, chronic disease will receive three laser sessions over 18 weeks. The main goal is to check for side effects, but re…

This early study tests whether using a vacuum erection device every day for six months can improve penile numbness in men. Eight adult men with reduced sensation will use the device at home and report their experiences through questionnaires and check-ins. The goal is to see if t…

This study looks at whether women aged 70 and older with low-risk breast cancer can safely skip hormone therapy after surgery. Current guidelines recommend at least 5 years of hormone therapy, but older patients may face more side effects with less benefit. The trial will compare…

This pilot study is testing whether taking endocrine therapy in the morning or evening makes a difference for people with metastatic breast or prostate cancer. Fifty participants will be randomly assigned to take their medication either within an hour of waking or within an hour …

This study looks at how well the pancreas can produce insulin in people with type 2 diabetes. Participants drink a meal replacement shake, and blood is taken five times over two hours to measure insulin and blood sugar levels. The goal is to understand differences in insulin prod…

This study is testing whether a quick, non-invasive test that measures heart rate and breathing patterns before thoracic surgery can help predict which patients are more likely to have complications after the operation. Researchers will enroll 130 adults undergoing major chest su…

This study tests a computer tool called the Extubation Advisor that helps doctors decide when to safely remove a breathing tube from critically ill patients. The tool combines patient data with risk predictions. The study will enroll 200 adults who have been on a ventilator for m…

This study looks at whether brain scans can predict if someone will be satisfied after knee replacement surgery. Up to 1 in 5 patients still have pain or trouble moving after surgery, and doctors can't currently predict who. Researchers will scan the brains of 50 adults before an…

This study is testing whether adding hip arthroscopy to a standard hip realignment surgery (PAO) improves outcomes for people with hip dysplasia. About 204 participants will be randomly assigned to receive either PAO alone or PAO plus arthroscopy. Researchers will measure quality…

This pilot study is testing whether it's practical to run a larger trial that compares inducing labor at 38 weeks versus waiting for natural labor in people with gestational diabetes. About 260 participants will be randomly assigned to either early induction or expectant manageme…