Assessment of transition from use of alteplase to tenecteplase in the treatment of acute ischemic stroke in a large system of community hospitals.

Objective: Pharmacologic thrombolytic treatment for acute ischemic stroke has primarily been managed by intravenous alteplase. Tenecteplase is a variant that has been shown to be non-inferior to alteplase in clinical trials. In this study, we present a real-world assessment of patient outcomes with the facility-wide transition to the use of tenecteplase versus altepase for acute ischemic stroke in a large system of community hospitals in the United States.

Methods: This retrospective analysis assessed adult patients who received either alteplase or tenecteplase between 1 April 2020 and 31 March 2023. Propensity matching was used to estimate the covariate-adjusted association with outcomes of discharge expired/hospice, intracranial hemorrhage and readmission to a facility in the same healthcare system within 30, 60, or 90 days.

Results: Among 12,766 patients, gross mortality was 7.6% (n = 285) with tenecteplase and 8.2% (n = 739) with alteplase (p = 0.314); intracranial hemorrhage was 2.4% with either. The propensity match analysis found that the relative risk of mortality/hospice for patients given tenecteplase versus alteplase was 0.993 (95% CI: 0.848-1.162, p = 1.000). When limited to five facilities with the highest volume of thrombolytic use, there were no significant differences in outcomes. While the time from emergency department arrival to thrombolytic administration (door-to-needle) was shorter among patients receiving tenecteplase, there was no significant difference in the odds of mortality based on door-to-needle time.

Conclusion: In alignment with previous studies, these findings demonstrate the lack of potential harm with a transition from alteplase to tenecteplase in clinical practice for acute ischemic stroke patients treated in community hospitals.