Effect of Time Delay on Reperfusion After Tenecteplase in an Extended Time Window: Analysis From the CHABLIS‐T Trials

Background The association between time and reperfusion in an extended time window remains unexplored. This study aimed to investigate whether time delay was associated with reduced odds of reperfusion in patients with acute ischemic stroke treated with tenecteplase in the 4.5‐ to 24‐hour time windo...

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Main Authors: Lan Hong, Juehua Zhu, Zhijiao He, Xinru Wang, Siyuan Li, Xinyu Liu, Yifeng Ling, Lumeng Yang, Qi Fang, Qiang Dong, Xin Cheng
Format: Article
Language:English
Published: Wiley 2025-06-01
Series:Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease
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Online Access:https://www.ahajournals.org/doi/10.1161/JAHA.124.040994
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author Lan Hong
Juehua Zhu
Zhijiao He
Xinru Wang
Siyuan Li
Xinyu Liu
Yifeng Ling
Lumeng Yang
Qi Fang
Qiang Dong
Xin Cheng
author_facet Lan Hong
Juehua Zhu
Zhijiao He
Xinru Wang
Siyuan Li
Xinyu Liu
Yifeng Ling
Lumeng Yang
Qi Fang
Qiang Dong
Xin Cheng
author_sort Lan Hong
collection DOAJ
description Background The association between time and reperfusion in an extended time window remains unexplored. This study aimed to investigate whether time delay was associated with reduced odds of reperfusion in patients with acute ischemic stroke treated with tenecteplase in the 4.5‐ to 24‐hour time window, in the CHABLIS‐T (Chinese Acute Tissue‐Based Imaging Selection for Lysis in Stroke‐Tenecteplase) trials. Methods Patients from the CHABLIS‐T and CHABLIS‐T II trials treated with tenecteplase were included. Major reperfusion was assessed via follow‐up perfusion imaging or digital subtraction angiography. Time intervals from symptom onset/last known well to hospital arrival/administration of tenecteplase were analyzed as continuous and categorical variables in multivariable logistic regression models. Subgroup analysis examined the consistency of the association across different patient characteristics. Results Sixty‐seven patients achieved postthrombolytic major reperfusion among the 199 patients included. Longer onset‐to‐arrival time was associated with lower odds of major reperfusion (continuous: odds ratio [OR], 0.98 per 10 minutes, P=0.004; categorical: OR, 0.45, P=0.003). Similarly, prolonged onset‐to‐thrombolysis time was associated with decreased probability of reperfusion (continuous variable: OR, 0.98 per 10 minutes, P=0.01; categorical variable: OR, 0.48, P=0.002). The analysis of time from last known well drew similar results. Subgroup analysis revealed that patients with nonatherosclerotic stroke were more susceptible to time delay. Conclusions Time delay was associated with reduced postthrombolytic reperfusion odds in patients with stroke treated with tenecteplase, especially in nonatherosclerotic cases. Prompt reperfusion remains essential, even in patients with benign perfusion profiles in an extended time window. Registration URL: https://clinicalTrials.gov; URL: CHABLIS‐T NCT04086147; CHABLIS‐T II NCT04516993
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series Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease
spelling doaj-art-d5a24778d4e14da387895a77df33ed1c2025-08-20T03:50:00ZengWileyJournal of the American Heart Association: Cardiovascular and Cerebrovascular Disease2047-99802025-06-01141210.1161/JAHA.124.040994Effect of Time Delay on Reperfusion After Tenecteplase in an Extended Time Window: Analysis From the CHABLIS‐T TrialsLan Hong0Juehua Zhu1Zhijiao He2Xinru Wang3Siyuan Li4Xinyu Liu5Yifeng Ling6Lumeng Yang7Qi Fang8Qiang Dong9Xin Cheng10Department of Neurology, National Center for Neurological Disorders, National Clinical Research Centre for Aging and Medicine Huashan Hospital, Fudan University Shanghai ChinaDepartment of Neurology The First Affiliated Hospital of Soochow University Suzhou Jiangsu Province ChinaDepartment of Neurology, National Center for Neurological Disorders, National Clinical Research Centre for Aging and Medicine Huashan Hospital, Fudan University Shanghai ChinaDepartment of Neurology, National Center for Neurological Disorders, National Clinical Research Centre for Aging and Medicine Huashan Hospital, Fudan University Shanghai ChinaDepartment of Neurology, National Center for Neurological Disorders, National Clinical Research Centre for Aging and Medicine Huashan Hospital, Fudan University Shanghai ChinaDepartment of Neurology, National Center for Neurological Disorders, National Clinical Research Centre for Aging and Medicine Huashan Hospital, Fudan University Shanghai ChinaDepartment of Neurology, National Center for Neurological Disorders, National Clinical Research Centre for Aging and Medicine Huashan Hospital, Fudan University Shanghai ChinaDepartment of Neurology, National Center for Neurological Disorders, National Clinical Research Centre for Aging and Medicine Huashan Hospital, Fudan University Shanghai ChinaDepartment of Neurology The First Affiliated Hospital of Soochow University Suzhou Jiangsu Province ChinaDepartment of Neurology, National Center for Neurological Disorders, National Clinical Research Centre for Aging and Medicine Huashan Hospital, Fudan University Shanghai ChinaDepartment of Neurology, National Center for Neurological Disorders, National Clinical Research Centre for Aging and Medicine Huashan Hospital, Fudan University Shanghai ChinaBackground The association between time and reperfusion in an extended time window remains unexplored. This study aimed to investigate whether time delay was associated with reduced odds of reperfusion in patients with acute ischemic stroke treated with tenecteplase in the 4.5‐ to 24‐hour time window, in the CHABLIS‐T (Chinese Acute Tissue‐Based Imaging Selection for Lysis in Stroke‐Tenecteplase) trials. Methods Patients from the CHABLIS‐T and CHABLIS‐T II trials treated with tenecteplase were included. Major reperfusion was assessed via follow‐up perfusion imaging or digital subtraction angiography. Time intervals from symptom onset/last known well to hospital arrival/administration of tenecteplase were analyzed as continuous and categorical variables in multivariable logistic regression models. Subgroup analysis examined the consistency of the association across different patient characteristics. Results Sixty‐seven patients achieved postthrombolytic major reperfusion among the 199 patients included. Longer onset‐to‐arrival time was associated with lower odds of major reperfusion (continuous: odds ratio [OR], 0.98 per 10 minutes, P=0.004; categorical: OR, 0.45, P=0.003). Similarly, prolonged onset‐to‐thrombolysis time was associated with decreased probability of reperfusion (continuous variable: OR, 0.98 per 10 minutes, P=0.01; categorical variable: OR, 0.48, P=0.002). The analysis of time from last known well drew similar results. Subgroup analysis revealed that patients with nonatherosclerotic stroke were more susceptible to time delay. Conclusions Time delay was associated with reduced postthrombolytic reperfusion odds in patients with stroke treated with tenecteplase, especially in nonatherosclerotic cases. Prompt reperfusion remains essential, even in patients with benign perfusion profiles in an extended time window. Registration URL: https://clinicalTrials.gov; URL: CHABLIS‐T NCT04086147; CHABLIS‐T II NCT04516993https://www.ahajournals.org/doi/10.1161/JAHA.124.040994acute strokereperfusiontenecteplasethrombolysistreatment delay
spellingShingle Lan Hong
Juehua Zhu
Zhijiao He
Xinru Wang
Siyuan Li
Xinyu Liu
Yifeng Ling
Lumeng Yang
Qi Fang
Qiang Dong
Xin Cheng
Effect of Time Delay on Reperfusion After Tenecteplase in an Extended Time Window: Analysis From the CHABLIS‐T Trials
Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease
acute stroke
reperfusion
tenecteplase
thrombolysis
treatment delay
title Effect of Time Delay on Reperfusion After Tenecteplase in an Extended Time Window: Analysis From the CHABLIS‐T Trials
title_full Effect of Time Delay on Reperfusion After Tenecteplase in an Extended Time Window: Analysis From the CHABLIS‐T Trials
title_fullStr Effect of Time Delay on Reperfusion After Tenecteplase in an Extended Time Window: Analysis From the CHABLIS‐T Trials
title_full_unstemmed Effect of Time Delay on Reperfusion After Tenecteplase in an Extended Time Window: Analysis From the CHABLIS‐T Trials
title_short Effect of Time Delay on Reperfusion After Tenecteplase in an Extended Time Window: Analysis From the CHABLIS‐T Trials
title_sort effect of time delay on reperfusion after tenecteplase in an extended time window analysis from the chablis t trials
topic acute stroke
reperfusion
tenecteplase
thrombolysis
treatment delay
url https://www.ahajournals.org/doi/10.1161/JAHA.124.040994
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