Ottawa

Preterm birth, defined as birth before 37 weeks of gestation, occurs in about 8 percent of pregnancies in Canada and is linked to many health challenges, especially when it happens before 29 weeks. At this early stage, infants often face breathing difficulties and may require resuscitation. This trial compares resuscitation using either low 30% or high 60% oxygen levels to determine which approach results in better survival and neurodevelopmental outcomes at around 24 months of age. The study uses a cluster randomized crossover design where hospitals alternate between starting resuscitation with 30% or 60% oxygen for groups of 30 infants. Resuscitation includes standard care steps like lung expansion and ventilation support as needed. Oxygen is initially given at the assigned concentration for the first 5 minutes, then adjusted based on the infants oxygen saturation levels and heart rate over the next 5 minutes to maintain target saturation ranges. This approach aims to balance risks of too much or too little oxygen. Participants are infants born between 23 and 28 weeks gestation who receive full resuscitation at participating centers. During the study, infants have oxygen saturation monitored continuously, and adjustments to oxygen concentration are made carefully. Researchers will evaluate survival and major neurodevelopmental outcomes at 24 months corrected age, along with several safety and health measures during the neonatal intensive care stay. The trial is expected to provide important evidence to guide oxygen use during resuscitation of extremely preterm infants.

Researchers are evaluating the safety and effects of a medicine called Ritlecitinib for adults with moderate to severe hidradenitis suppurativa HS, a condition that causes long-lasting painful red lumps on the skin. The study focuses on participants who have not responded well to or cannot tolerate antibiotics for HS. This Phase 2, randomized, double-blind, placebo-controlled study aims to understand how Ritlecitinib compares to placebo in treating this condition. Participants will be randomly assigned to take either Ritlecitinib or a matching placebo by mouth once daily at home. The study includes a loading dose of Ritlecitinib for the first 8 weeks, followed by a maintenance dose for the next 8 weeks, totaling 16 weeks of treatment. The placebo group will follow the same schedule with a pill that looks like the study medicine but contains no active drug. Throughout the study, participants will have about 10 clinic visits over approximately 24 weeks, including screening, Day 1, and follow-ups every 1, 2, or 4 weeks until Week 16. At these visits, health status will be reviewed through physical exams, blood and urine tests, vital signs, chest X-rays, ECGs, hearing tests, and questionnaires. Participants will also record daily medication intake and HS symptoms using a mobile eDiary. Researchers will measure skin response and safety outcomes to assess the effects of the study medicine compared to placebo.

Researchers are evaluating calderasib alone or combined with cetuximab to treat people with advanced solid tumors that have the KRAS G12C mutation, excluding colorectal cancer. This study aims to measure how many participants experience tumor shrinkage or disappearance and compare the responses between the two treatments. It is a phase 2, open-label trial focused on treatment safety and tolerability. Participants will receive calderasib orally with no set limit on treatment cycles. Some participants will also receive cetuximab via intravenous infusion every two weeks. Treatment continues until criteria for stopping the study intervention are met. The trial uses a randomized, parallel design to compare the two experimental arms. Throughout the study, participants will be monitored for tumor response, adverse events, and treatment discontinuations related to side effects. Researchers will also assess progression-free survival, duration of response, and overall survival up to about 76 months. The trial lasts until April 2032, with ongoing safety and efficacy evaluations during this period.

Researchers are evaluating MK-2214, a study treatment designed to slow brain changes in people with early Alzheimers disease AD. AD is a form of dementia that causes memory loss, communication difficulties, and challenges in decision-making, affecting daily tasks. This phase 2 trial aims to determine if MK-2214 slows the spread of tau protein in the brain compared to a placebo, as well as to assess the safety and tolerability of MK-2214. Participants will be randomly assigned to receive either MK-2214 or a placebo through intravenous IV infusion every 4 weeks during the study. The study uses a parallel design with quadruple masking to compare the effects of the study drug versus placebo over a period of up to approximately 23 months. Both groups receive infusions on the same schedule to maintain the studys integrity. During the study, participants will undergo brain scans including positron emission tomography PET to measure tau protein levels and other assessments such as cognitive and daily living function tests. Researchers will monitor adverse events and treatment discontinuations throughout the study, which lasts up to about 26 months. These assessments help determine the impact of MK-2214 on disease progression and safety in individuals with early AD.

Researchers are investigating whether sacituzumab tirumotecan alone or combined with other treatments can treat certain advanced or unresectable gastrointestinal cancers, including colorectal cancer, pancreatic ductal adenocarcinoma, and biliary tract cancer. The study aims to understand the safety and tolerability of sacituzumab tirumotecan and how well the cancer responds to these treatments. Participants will receive sacituzumab tirumotecan in different dose levels either combined with chemotherapy every two weeks in a 4-week cycle, alone every two weeks in a 4-week cycle, or combined with cisplatin and pembrolizumab in a 3-week cycle. Treatment continues until the cancer worsens or participants cannot tolerate it. Cisplatin is given up to approximately six months, and pembrolizumab is administered for up to about two years in the combination group. During the study, participants will have regular assessments to monitor safety, side effects, and how the cancer responds via imaging and clinical evaluation. Researchers will track dose-limiting toxicities, adverse events, treatment discontinuations due to side effects, and objective response rates. Additional measures include duration of response, progression-free survival, and overall survival, with monitoring lasting up to approximately 63 months.

Researchers are evaluating the effects of an investigational medicine called PGN-EDODM1 to understand how safe and tolerable multiple doses are for adults with myotonic dystrophy type 1 DM1. This phase 2 study compares PGN-EDODM1 to a placebo to assess its safety and tolerability in people with this condition. Participants will be randomly assigned to receive either PGN-EDODM1 or a placebo. The treatment is given by intravenous infusion once every 4 weeks for a total of 12 weeks. Those in the PGN-EDODM1 group will receive ascending doses, while the placebo group will receive saline infusions on the same schedule. During the study, participants will be monitored for safety by tracking adverse events from the start through Day 112. Researchers will measure drug levels in the blood, changes in muscle tissue, myotonia severity, hand grip strength, and mobility using specific tests. The total participation lasts through about 16 weeks, including treatment and follow-up assessments.

Researchers are investigating new treatments for high-risk, early-stage breast cancer, specifically targeting two types triple-negative breast cancer TNBC and hormone receptor-low positiveHER2-negative breast cancer. These cancers are characterized by low or no HER2 protein and low hormone receptor presence. The study aims to evaluate if adding sacituzumab tirumotecan sac-TMT to pembrolizumab and chemotherapy can better reduce cancer cells in tumors and lymph nodes and improve the length of time patients live without cancer progression compared to pembrolizumab with chemotherapy alone. Participants in this trial receive one of two treatment plans. One group gets sacituzumab tirumotecan intravenously every two weeks plus pembrolizumab every three weeks for 12 weeks, followed by pembrolizumab with carboplatin and paclitaxel for another 12 weeks. After 3 to 6 weeks, surgery and optional radiation therapy take place, followed by pembrolizumab for about 28 weeks. Participants with remaining disease may receive additional treatments chosen by their doctors, including olaparib, capecitabine, doxorubicin, epirubicin, or cyclophosphamide. The other group receives chemotherapy drugs carboplatin and paclitaxel with pembrolizumab initially, then pembrolizumab with cyclophosphamide and doxorubicin or epirubicin, followed by surgery, optional radiation, and pembrolizumab for about 28 weeks, with similar additional options for residual disease. During the study, participants undergo core needle biopsies, receive intravenous infusions of study drugs, and have surgery and possible radiation therapy. Researchers assess outcomes such as the percentage of participants with no detectable cancer cells at surgery pathological complete response, event-free survival up to about 92 months, and overall survival up to nearly 10 years. Quality of life and side effects are monitored through questionnaires and adverse event tracking. The study lasts several years, with various assessments throughout treatment and follow-up periods to gather comprehensive data on treatment effects and safety.

Researchers are evaluating the efficacy and safety of trontinemab in people with early symptomatic Alzheimers disease, ranging from mild cognitive impairment to mild dementia due to Alzheimers. This Phase III trial aims to understand how trontinemab affects cognitive decline and disease progression in this population. Participants are randomly assigned to receive either intravenous trontinemab or a placebo in a parallel-group design. Treatment is administered by IV infusion, and the effects are compared over a period of 72 weeks. The study includes comprehensive safety and efficacy assessments throughout this period. During the 72 weeks of the study, participants will undergo various evaluations including cognitive tests such as the Clinical Dementia Rating-Sum of Boxes CDR-SB, Alzheimers Disease Assessment Scales, brain imaging with PET and MRI scans, and biomarker measurements in cerebrospinal fluid and blood. Safety monitoring includes tracking adverse events, infusion reactions, and antibody development. The study requires participants to have a study partner and to complete all study procedures over this time.

Researchers are studying the safety and effects of VHB937 in people with early Alzheimers disease, including those with Mild Cognitive Impairment due to Alzheimers or mild Alzheimers itself. This randomized, double-blind, placebo-controlled Phase II trial aims to evaluate whether VHB937 can benefit memory, thinking abilities, daily functioning, and brain changes. The study also looks at how the body processes VHB937 and responds to it. Participants receive intravenous infusions of either a low dose or high dose of VHB937, or a placebo, over a 72-week double-blind period. After this, an extension phase follows for further observation. The treatments are given through infusions, and participants are randomly assigned to one of the three groups in parallel. Throughout the study, participants and their study partners attend regular visits for assessments including clinical dementia rating scales, cognitive tests, daily living activities evaluation, and brain imaging biomarkers. Safety is monitored by tracking adverse events and serious adverse events. Blood samples are collected to measure VHB937 levels and immune responses. The total study duration includes the 72-week treatment period plus additional time in the extension phase.

Researchers are evaluating the accuracy and reliability of the MedMira Inc. Multiplo4 Complete Syphilis TPnTP Antibody Test a point-of-care test or POCT to diagnose infectious syphilis. This study responds to a rise in infectious syphilis cases in Canada, especially among heterosexuals and females of childbearing age, which has led to increased congenital syphilis and stillbirths. The goal is to compare this rapid tests performance to the standard syphilis serology testing used in clinical settings. Participants attending a sexual health clinic in Ottawa for routine syphilis testing will undergo testing with both the investigational Multiplo Complete Syphilis Antibody Test and conventional syphilis serology tests. The study involves a single visit lasting approximately 30 minutes during which both tests will be conducted in parallel to evaluate the new devices sensitivity and specificity. During the visit, participants will provide informed consent and be tested using both methods. Researchers will measure the accuracy of the investigational test compared to the gold standard. The study is designed to include individuals 16 years and older attending the clinic for syphilis testing, including follow-up visits. The study does not involve masking or randomization and aims to complete data collection by July 2026.