Stroke Trial Reaches Primary Completion for Thrombectomy Study

A Phase 3 trial investigating mechanical thrombectomy with extracranial proximal carotid artery acute stenting for Acute Ischemic Stroke reached primary completion on 2026-03-08, with 404 participants enrolled.

Background

Acute ischemic stroke (AIS) is a critical medical emergency caused by a blockage of blood flow to the brain, leading to significant morbidity and mortality. Mechanical thrombectomy (MT) has become a standard of care for patients with large vessel occlusions, demonstrating improved functional outcomes when performed within specific time windows. However, a subset of AIS patients presents with concomitant proximal carotid occlusive disease, either as a tandem occlusion (an occlusion in the intracranial vessel along with a severe stenosis or occlusion in the extracranial internal carotid artery) or a local occlusion. Managing these complex cases presents unique challenges, as the proximal carotid lesion can impede successful intracranial thrombectomy or lead to re-occlusion. This trial aims to investigate strategies for addressing these specific anatomical challenges in acute stroke management.

Trial design

This Phase 3 trial, titled "Proximal Internal Carotid Artery Acute Stroke Secondary to Tandem or Local Occlusion Thrombectomy Trial," reached primary completion with 404 participants enrolled. The study focuses on patients with Acute Ischemic Stroke from intracranial vessel occlusion in the anterior circulation who also have proximal carotid occlusive disease (occlusion or severe stenosis). The primary objective is to establish the efficacy of intra-arterial mechanical thrombectomy with extracranial proximal carotid artery acute stenting versus non-stenting approaches in this specific patient population.

What this means

The primary completion of this Phase 3 trial signifies that the data collection for the study's primary endpoint has concluded. This milestone is a crucial step towards the eventual analysis and disclosure of results for a trial addressing a complex and challenging aspect of acute ischemic stroke management. For patients experiencing acute ischemic stroke with concomitant proximal carotid occlusive disease, current treatment strategies can be complicated. The findings from this study are anticipated to provide important evidence regarding the efficacy of mechanical thrombectomy combined with acute stenting in this specific patient group, potentially informing future clinical guidelines and improving outcomes for these individuals.

Source

The information regarding this trial event was obtained from ClinicalTrials.gov, a public database of clinical studies. The primary completion date for the study NCT05611242, titled "Proximal Internal Carotid Artery Acute Stroke Secondary to Tandem or Local Occlusion Thrombectomy Trial", was posted on 2026-03-08 on clinicaltrials.gov.