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Alteplase (tissue plasminogen activator, t-PA) has been the global standard for treating patients with acute ischemic stroke who meet treatment criteria. However, interest is rising in tenecteplase (TNK) as an off-label alternative. Advantages of TNK include greater fibrin specificity and ease of administration, with a single bolus injection instead of a 1-hour infusion. Two new studies provide information on TNK for acute stroke.
In a phase 3 trial, Kvistad and colleagues tested TNK (at a higher dose, 0.4 mg/kg, than is commonly administered) against t-PA (0.9 mg/kg) at 11 hospitals in Norway. Patients were treated within 4.5 hours after stroke onset. The primary outcome was 3-month modified Rankin Scale (mRS) score of 0–1, indicating excel…