Abstract
The purpose of the COMPLETE (International Acute Ischemic Stroke Registry With the Penumbra System Aspiration Including the 3D Revascularization Device) registry was to evaluate the generalizability of the safety and efficacy of the Penumbra System (Penumbra, Inc, Alameda) in a real-world setting. COMPLETE was a global, prospective, postmarket, multicenter registry. Patients with large vessel occlusion-acute ischemic stroke who underwent mechanical thrombectomy using the Penumbra System with or without the 3D Revascularization Device as frontline approach were enrolled at 42 centers (29 United States, 13 Europe) from July 2018 to October 2019. Primary efficacy end points were successful postprocedure angiographic revascularization (modified Thrombolysis in Cerebral Infarction ≥2b) and 90-day functional outcome (modified Rankin Scale score 0-2). The primary safety end point was 90-day all-cause mortality. An imaging core lab determined modified Thrombolysis in Cerebral Infarction scores, Alberta Stroke Program Early CT Scores, clot location, and occurrence of intracranial hemorrhage at 24 hours. Independent medical reviewers adjudicated safety end points. Six hundred fifty patients were enrolled (median age 70 years, 54.0% female, 49.2% given intravenous recombinant tissue-type plasminogen activator before thrombectomy). Rate of modified Thrombolysis in Cerebral Infarction 2b to 3 postprocedure was 87.8% (95% CI, 85.3%-90.4%). First pass and postprocedure rates of modified Thrombolysis in Cerebral Infarction 2c to 3 were 41.5% and 66.2%, respectively. At 90 days, 55.8% (95% CI, 51.9%-59.7%) had modified Rankin Scale score 0 to 2, and all-cause mortality was 15.5% (95% CI, 12.8%-18.3%). Using Penumbra System for frontline mechanical thrombectomy treatment of patients with large vessel occlusion-acute ischemic stroke in a real-world setting was associated with angiographic, clinical, and safety outcomes that were comparable to prior randomized clinical trials with stringent site and operator selection criteria. Registration: URL: https://www.clinicaltrials.gov; Unique identifier: NCT03464565.
Highlights
AND PURPOSE: The purpose of the COMPLETE (International Acute Ischemic Stroke Registry With the Penumbra System Aspiration Including the 3D Revascularization Device) registry was to evaluate the generalizability of the safety and efficacy of the Penumbra System (Penumbra, Inc, Alameda) in a real-world setting
Using Penumbra System for frontline mechanical thrombectomy treatment of patients with large vessel occlusion–acute ischemic stroke in a real-world setting was associated with angiographic, clinical, and safety outcomes that were comparable to prior randomized clinical trials with stringent site and operator selection criteria
The American Heart/American Stroke Association 2019 and the European Stroke Organization/European Society for Minimally Invasive Neurological Therapy 2019 Guidelines agree that high-quality evidence exists to support the use of Mechanical thrombectomy (MT) plus best medical management over best medical management alone in patients with anterior circulation large vessel occlusion– acute ischemic stroke (LVO-AIS) with an Alberta Stroke Program Early CT Score (ASPECTS) ≥6 presenting within 6 hours of onset
Summary
COMPLETE was a global, prospective, postmarket, multicenter registry. Patients with large vessel occlusion– acute ischemic stroke who underwent mechanical thrombectomy using the Penumbra System with or without the 3D Revascularization Device as frontline approach were enrolled at 42 centers (29 United States, 13 Europe) from July 2018 to October 2019. Primary efficacy end points were successful postprocedure angiographic revascularization (modified Thrombolysis in Cerebral Infarction ≥2b) and 90-day functional outcome (modified Rankin Scale score 0–2). COMPLETE was a global, prospective, multicenter, single-arm, postmarket, registry assessing the performance of the Penumbra System in an LVO-AIS patient population. Inclusion criteria were patient age ≥18 years, prestroke modified Rankin Scale (mRS) score 0 to 1, patient experiencing AIS secondary to intracranial LVO who is eligible for MT using Penumbra System, planned frontline treatment with Penumbra System, and signed informed consent per Institutional Review Board/Ethics Committee. Exclusion criteria were any comorbid disease or condition expected to compromise survival or ability to complete follow-up assessments through 90 days and currently participating in an investigational (drug, device, etc) clinical trial that will confound registry end points. Natural history, or epidemiological studies not involving intervention remained eligible
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