Acute Ischemic Stroke Clinical Trial
Official title:
Trial of Intra-arterial Tenecteplase Following Successful Endovascular Thrombectomy on Safety and Efficacy in Patients With Large Vessel Occlusion of Posterior Circulation - a Multicenter Randomized Clinical Trial (ATTENTION IA)
Rationale: Recently, one prospective multicenter RCT reported a potential beneficial effect of intra-arterial alteplase following successful endovascular thrombectomy (EVT) in patients with an acute intracranial large vessel occlusion. In 2018, another prospective multicenter RCT supported the superiority of tenecteplase over alteplase in ischemic stroke patients with large vessel occlusion. Objective: To assess the effect of EVT in addition to intra-arterial tenecteplase compared to EVT alone, in patients with large vessel occlusion of posterior circulation, on functional and safety outcomes. Study design: This is a parallel group, randomized clinical trial of EVT with IA-TNK versus EVT. The trial has observer blind assessment of the primary outcome and of neuro-imaging at baseline and follow-up. Study population: Patients with acute intracranial large vessel occlusion of posterior circulation and an eTICI 2b-3 after EVT. Main study parameters/outcomes: The primary effect parameter will be excellent functional status at day 90 defined as a modified Rankin Score (mRS) of 0-1. The estimate will be adjusted for the known prognostic variables age, pre-stroke mRS, time from onset to randomization, stroke severity (NIHSS) and collaterals and adjusted and unadjusted estimates with corresponding 95% confidence intervals will be reported.
Status | Completed |
Enrollment | 208 |
Est. completion date | November 24, 2023 |
Est. primary completion date | August 24, 2023 |
Accepts healthy volunteers | No |
Gender | All |
Age group | 18 Years and older |
Eligibility | Inclusion criteria - Acute ischemic stroke patients with symptomatic intracranial large vessel occlusion (LVO) in the intracranial vertebral artery, basilar artery, or the P1 segment of the posterior cerebral artery. - Treated with endovascular thrombectomy (EVT) resulting in an eTICI score 2b50/3 at end of the procedure. - Age of 18 years or older; - National Institutes of Health Stroke Scale (NIHSS) score on admission=6; - Posterior Circulation ASPECTS = 6 on CT/CTA-Source Images/MRI-DWI. - Time from estimated time of basilar artery occlusion to randomization<24 hours; - Written informed consent. Exclusion criteria - Pre-existing dependency with mRS >1; - Contraindication to Intravenous Thrombolysis (except time to therapy); - Complete clinical recovery in the angiography suite by end of EVT procedure; - Pregnancy; if a woman is of childbearing potential a urine or serum beta HCG test is positive; - Severe contrast allergy or absolute contraindication to iodinated contrast; - Participation in other investigational drug or device clinical trials; - Systolic pressure >185 mmHg or diastolic pressure >110 mmHg, and cannot be controlled by antihypertensive drugs; - Known genetic or acquired bleeding diathesis, lack of anticoagulant factors, or oral anticoagulant drugs and INR > 1.7, or treated with direct oral anticoagulant agents in the prior 48 hours; - platelets <100 000/mm3, aPTT >40 s, or PT >15 s; Blood glucose < 2.7 or >22.2 mmol/L; - Severe renal Failure as defined by a serum creatinine > 3.0 mg/dl (or 265.2 µmol/l) or glomerular Filtration Rate [GFR] < 30, or patient requires hemodialysis or peritoneal dialysis; - Clinical presentation suggests a subarachnoid hemorrhage, even if initial CT or MRI scan is normal; - Suspicion of aortic dissection; - Presumed vasculitis or septic embolization; - Life expectancy < 1 year; - Patients that cannot complete 90-day follow-up (e.g. no fixed residence, overseas patients, etc.); - CT/MR shows intracranial hemorrhage; - Ischemic stroke within 3 months; - Severe head trauma within 3 months; - Major surgery or severe trauma within the last 2 weeks. - History of prior intracranial hemorrhage. |
Country | Name | City | State |
---|---|---|---|
China | The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine | Hefei | Anhui |
Lead Sponsor | Collaborator |
---|---|
The First Affiliated Hospital of University of Science and Technology of China |
China,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | a modified Rankin Score of 0-1 | modified Rankin scale (range, 0 to 6, with a score of 0 indicating no disability, 1 no clinically significant disability, 2 slight disability, 3 moderate disability but remaining able to walk unassisted, 4 moderately severe disability, 5 severe disability, and 6 death) | 90 (± 14 days) after procedure | |
Secondary | a modified Rankin Score of 0-3 | modified Rankin scale (range, 0 to 6, with a score of 0 indicating no disability, 1 no clinically significant disability, 2 slight disability, 3 moderate disability but remaining able to walk unassisted, 4 moderately severe disability, 5 severe disability, and 6 death) | 90 (± 14 days) after procedure | |
Secondary | Modified Rankin Score | modified Rankin scale (range, 0 to 6, with a score of 0 indicating no disability, 1 no clinically significant disability, 2 slight disability, 3 moderate disability but remaining able to walk unassisted, 4 moderately severe disability, 5 severe disability, and 6 death) | 90 (± 14 days) after procedure | |
Secondary | NIHSS score | The NIHSS is an ordinal hierarchical scale to evaluate the severity of stroke by assessing a patient's performance. Scores range from 0 to 42, with higher scores indicating a more severe deficit. | 24 hours after procedure | |
Secondary | mortality | (Number of subjects who died at 90-day follow-up/total number of subjects who participated in 90-day follow-up) x100% | 90 (± 14 days) after procedure | |
Secondary | symptomatic intracerebral hemorrhage (ICH) | SICH means any hemorrhage with neurological deterioration, as indicated by an NIHSS score that was higher by =4 points than the value at baseline or the lowest value in the first 72 hours or any hemorrhage leading to death. | within 72 hours after procedure |
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