The study will be a multicenter, prospective, randomized, open label, blinded-endpoint (PROBE), controlled phase 3 trial (2 arms with 1:1 randomization) in ischemic stroke due to large vessel occlusion with perfusion mismatch up to 24 hours of symptom onset. The target mismatch profiles on CTP or MRI perfusion weighted imaging include ischemic core volume <70 mL, mismatch ratio≥1.8 and mismatch volume≥15 mL demonstrated by a certified automatic software. The sample size is 516 patients.
The trial is a multicenter, prospective, block randomized, open label, blinded-endpoint (PROBE) controlled design. Patients with acute ischemic stroke due to large vessel occlusion within 4.5-24 hours of symptom onset (including wake-up stroke and unwitnessed stroke) will be randomized 1:1 to 0.25mg/kg intravenous tenecteplase or standard medical treatment.