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NCT Number: NCT07419997

A Multicenter, Retrospective, Observational Cohort Study on Intravenous Thrombolysis Beyond the Time Window for Acute Ischemic Stroke

A multicenter, retrospective, observational cohort study on intravenous thrombolysis beyond the time window for acute ischemic stroke

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Key information

Conditions

Stroke Brain Diseases Cardiovascular Diseases Central Nervous System Diseases Cerebrovascular Disorders Ischemic Stroke Nervous System Diseases Vascular Diseases

Age range

18 year and older

Sex eligibility

All sexes

Study type

Observational

Primary location

Xuanwu Hospital Capital Medical University, Beijing, Beijing 100053

Beijing, 100053, China

Location status: Recruiting

Location contact

Xin Xing, MD

CONTACT

[email protected]

01083198082

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

  • Patients with acute ischemic stroke, regardless of gender;
  • Age ≥ 18 years old;
  • Time from onset to treatment within 4.5 - 24 hours (the onset time refers to the last time when they appeared normal);
  • Complete relevant clinical data (including gender, age, mRS, NIHSS, etc.).

Treatment and study plan

Primary outcomes

  1. Proportion of study participants with mRS scores of 0 - 1

    Time frame: at 90 (±7) days

    Proportion of study participants with mRS scores of 0 - 1

Secondary outcomes

  1. Distribution of mRS scores ranging from 0 to 6

    Time frame: at 90 (±7) days

    Distribution of mRS scores ranging from 0 to 6

  2. Proportion of study participants with mRS scores of 0 - 2

    Time frame: at 90 (±7) days

    Proportion of study participants with mRS scores of 0 - 2

  3. The proportion of study participants with a NIHSS score of ≤1 or a decrease of ≥8 points compared to the baseline

    Time frame: at 24 (±12) hours

    The proportion of study participants with a NIHSS score of ≤1 or a decrease of ≥8 points compared to the baseline

  4. mortality rate

    Time frame: at 90 (±7) days

    mortality rate

  5. Symptomatic intracranial hemorrhage

    Time frame: within 36 hours

    Symptomatic intracranial hemorrhage

Study contacts

Contact information is provided by the study sponsor or research team.

Xin Xing, MD

CONTACT

[email protected]

01083198082

Sponsors and collaborators

Lead sponsor

Xuanwu Hospital, Beijing

Other

Registry information

Acronym: TRAILBLAZER

Important dates

Study start
2025
Primary completion
2026
Study completion
2026
First posted
Feb 19, 2026
Registry last updated
Feb 19, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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