NCT06510634

Brief Summary

Endovascular thrombectomy (EVT) for posterior circulation occlusion is generally performed within a window of less than 24 hours from the time the patient was last known well (LKW). The efficacy and safety of EVT beyond the 24-hour window remain uncertain.

Trial Health

75
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
236

participants targeted

Target at P75+ for all trials

Timeline
23mo left

Started Jun 2019

Longer than P75 for all trials

Geographic Reach
1 country

1 active site

Status
enrolling by invitation

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress79%
Jun 2019Mar 2028

Study Start

First participant enrolled

June 1, 2019

Completed
4.8 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

April 1, 2024

Completed
3 months until next milestone

First Submitted

Initial submission to the registry

July 14, 2024

Completed
5 days until next milestone

First Posted

Study publicly available on registry

July 19, 2024

Completed
3.6 years until next milestone

Study Completion

Last participant's last visit for all outcomes

March 1, 2028

Expected
Last Updated

February 28, 2025

Status Verified

February 1, 2025

Enrollment Period

4.8 years

First QC Date

July 14, 2024

Last Update Submit

February 25, 2025

Conditions

Outcome Measures

Primary Outcomes (1)

  • proportion of patients with Modified ranking scale (mRS) (0-3) at 90 days

    A 0-6 scale running from perfect health without symptoms to death.

    90(±14)days

Secondary Outcomes (3)

  • distribution of patients with Modified ranking scale (mRS) (0-3) at 90 days

    90(±14)days

  • Mortality within 90 days

    90(±14)days

  • Incidence of symptomatic intracranial haemorrhage

    90(±14)days

Study Arms (2)

endovascular thrombectomy group

The EVT group would include Stent retriever thrombectomy; Aspiration; Balloon angioplasty and/or stenting; Intra-arterial medication; Combination

Other: Endovascular Therapy

best medical treatment gruop

BMM consisted of IVT antiplatelet drugs, anticoagulation, or combinations of these treatment modalities according to institutional guidelines.

Other: Endovascular Therapy

Interventions

Endovascular therapy, as an adjunct to standard stroke therapy, may be beneficial for a very select population of patients who present with an acute ischemic stroke and have a proven large, proximal occlusion on imaging. Endovascular therapy includes any one or more of the following: Intra-arterial thrombolytic therapy, aspiration, stent retrieval, or a combination of multiple mechanical devices.

best medical treatment gruopendovascular thrombectomy group

Eligibility Criteria

Age18 Years - 90 Years
Sexall
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

This study is a prospective, multicenter cohort study, which analyzed the prospectively databases of 11 stroke centers.Including patients with ischemic stroke due to vertebrobasilar artery beyond 24 hours from last known well.

You may qualify if:

  • age≥18 years.;
  • blockage in the vertebrobasilar artery, including the vertebral artery or basilar artery, determined using computed tomographic angiography (CTA)/ magnetic resonance angiography (MRA)/digital subtraction angiography (DSA);
  • VBAO occurrence more than 24 hours from LKW;
  • none to mild premorbid disability defined by modified Rankin Scale (mRS) score ≤2;
  • informed consent before enrollment in the clinical trials.

You may not qualify if:

  • neuroimaging evidence of cerebral hemorrhage on presentation;
  • lack of follow up information on outcomes at 90 days
  • serious, advanced, or terminal illness.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Tianjin Huanhu Hospital

Tianjin, Tianjin Municipality, China

Location

MeSH Terms

Conditions

Ischemic Stroke

Condition Hierarchy (Ancestors)

StrokeCerebrovascular DisordersBrain DiseasesCentral Nervous System DiseasesNervous System DiseasesVascular DiseasesCardiovascular Diseases

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Chief Physician

Study Record Dates

First Submitted

July 14, 2024

First Posted

July 19, 2024

Study Start

June 1, 2019

Primary Completion

April 1, 2024

Study Completion (Estimated)

March 1, 2028

Last Updated

February 28, 2025

Record last verified: 2025-02

Locations