Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/112054
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Type: Journal article
Title: Tenecteplase versus alteplase before endovascular thrombectomy (EXTEND-IA TNK): multicenter, randomized, controlled study
Author: Campbell, B.
Mitchell, P.
Churilov, L.
Yassi, N.
Kleinig, T.
Yan, B.
Dowling, R.
Bush, S.
Dewey, H.
Thijs, V.
Simpson, M.
Brooks, M.
Asadi, H.
Wu, T.
Shah, D.
Wijeratne, T.
Ang, T.
Miteff, F.
Levi, C.
Krause, M.
et al.
Citation: International Journal of Stroke, 2018; 13(3):328-334
Publisher: SAGE Publications
Issue Date: 2018
ISSN: 1747-4930
1747-4949
Statement of
Responsibility: 
Bruce CV Campbell, Peter J Mitchell, Leonid Churilov, Nawaf Yassi, Timothy J Kleinig, Bernard Yan, Richard J Dowling, Steven J Bush, Helen M Dewey, Vincent Thijs, Marion Simpson, Mark Brooks, Hamed Asadi, Teddy Y Wu, Darshan G Shah, Tissa Wijeratne, Timothy Ang, Ferdinand Miteff, Christopher Levi, Martin Krause, Timothy J Harrington, Kenneth C Faulder, Brendan S Steinfort, Peter Bailey, Henry Rice, Laetitia de Villiers, Rebecca Scroop, Wayne Collecutt, Andrew A Wong, Alan Coulthard, PA Barber, Ben McGuinness, Deborah Field, Henry Ma, Winston Chong, Ronil V Chandra, Christopher F Bladin, Helen Brown, Kendal Redmond, David Leggett, Geoffrey Cloud, Anoop Madan, Neil Mahant, Bill O’Brien, John Worthington, Geoffrey Parker, Patricia M. Desmond, Mark W Parsons, Geoffrey A Donnan and Stephen M Davis on behalf of the EXTEND-IA TNK investigators
Abstract: Background and hypothesis: Intravenous thrombolysis with alteplase remains standard care prior to thrombectomy for eligible patients within 4.5 h of ischemic stroke onset. However, alteplase only succeeds in reperfusing large vessel arterial occlusion prior to thrombectomy in a minority of patients. We hypothesized that tenecteplase is non-inferior to alteplase in achieving reperfusion at initial angiogram, when administered within 4.5 h of ischemic stroke onset, in patients planned to undergo endovascular therapy. Study design: EXTEND-IA TNK is an investigator-initiated, phase II, multicenter, prospective, randomized, open-label, blinded-endpoint non-inferiority study. Eligibility requires a diagnosis of ischemic stroke within 4.5 h of stroke onset, pre-stroke modified Rankin Scale≤3 (no upper age limit), large vessel occlusion (internal carotid, basilar, or middle cerebral artery) on multimodal computed tomography and absence of contraindications to intravenous thrombolysis. Patients are randomized to either IV alteplase (0.9 mg/kg, max 90 mg) or tenecteplase (0.25 mg/kg, max 25 mg) prior to thrombectomy. Study outcomes: The primary outcome measure is reperfusion on the initial catheter angiogram, assessed as modified treatment in cerebral infarction 2 b/3 or the absence of retrievable thrombus. Secondary outcomes include modified Rankin Scale at day 90 and favorable clinical response (reduction in National Institutes of Health Stroke Scale by ≥8 points or reaching 0-1) at day 3. Safety outcomes are death and symptomatic intracerebral hemorrhage.
Keywords: Ischemic stroke; thrombolysis; tissue plasminogen activator; tenecteplase; alteplase; endovascular thrombectomy; intra-arterial clot retrieval; CT perfusion; randomized trial
Rights: © 2017 World Stroke Organization Reprints and permissions: sagepub.co.uk/journalsPermissions.nav
RMID: 0030077186
DOI: 10.1177/1747493017733935
Grant ID: http://purl.org/au-research/grants/nhmrc/1043242
http://purl.org/au-research/grants/nhmrc/1035688
http://purl.org/au-research/grants/nhmrc/1113352
http://purl.org/au-research/grants/nhmrc/1111972
Appears in Collections:Medicine publications

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