San Men Xia Shi

Researchers are studying the effects of normobaric oxygen (NBO) therapy on patients who have experienced an acute ischemic stroke (AIS) and are transferred for endovascular thrombectomy (EVT). The goal is to assess the safety and effectiveness of NBO in improving functional outcomes three months after stroke. Stroke is a major cause of death and disability worldwide, and while treatments like mechanical thrombectomy can improve blood flow, less than half of patients with large vessel occlusion achieve good recovery. NBO offers potential brain protection by improving oxygen delivery to affected areas and reducing damage through multiple mechanisms. Participants will receive either inhaled 100% oxygen (NBO) or best medical care without NBO. The study focuses on patients transferred for EVT who meet specific stroke severity and imaging criteria. NBO treatment is delivered through oxygen inhalation, aiming to increase oxygen availability to the brain before reperfusion. The study is conducted in a Phase 3 setting and compares outcomes between those receiving NBO and those receiving standard care. During the study, participants will be monitored for disability levels using the modified Rankin scale at 90 days and one year after treatment. Assessments include neurological exams and imaging to confirm stroke details and severity. Researchers will also track safety and functional outcomes to evaluate the impact of NBO therapy. Participants are followed for at least three months after randomization to observe recovery and potential benefits.