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Intravenous tenecteplase for acute ischemic stroke within 4.5 to 6 hours of onset (EXIT-BT2): a prospective, randomized, open label, blinded endpoint, and multi-center study

NCT ID NCT06010628

NEW Sponsor: General Hospital of Shenyang Military Region Source: ClinicalTrials.gov ↗

What the study statuses mean

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Recruitment status, easiest to join first

Recruiting now This study
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Sep 10, 2026 · Last updated Sep 10, 2026

Summary

To date, the benefit of intravenous thrombolysis is confined within 4.5 hours of onset for acute ischemic stroke (AIS) patients without advanced neuroimaging selection. Unpublished pilot EXIT-BT (EXtending the tIme window of Thrombolysis by ButylphThalide up to 6 Hours after onset) suggest the safety, feasibility and potential benefit of intravenous tenecteplase (TNK) in AIS within 4.5 to 6 hours of onset. The current study aims to investigate the efficacy and safety of TNK for AIS within 4.5 to 6 hours of onset.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Phase 4

Runs after approval, following long-term safety and how well the treatment works in everyday use.

Participants

About 1,440 people

The number the study aims to enrol. It can still change while the study runs.

Started

Feb 2024

Expected to finish

Dec 2029

An estimate. End dates often move.

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

18 years and older

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Age ≥ 18 year * Acute ischemic stroke confirmed by non-contrast computed tomography and use of CTA for assessment of LVO as determined by local investigators; * The time from last known well to treatment: 4.5 - 6 hours; * NIHSS ≥ 4 at randomization; * First stroke onset or past stroke without obvious neurological deficit (mRS≤1); * Uncertainty over the benefits and risks of thrombolysis by researcher; * Signed informed consent. Exclusion Criteria: * Pre-stroke disability (mRS≥2); * Planned intravenous thrombolysis based on WAKE-UP or EXTEND study criterion; * Any contraindication to intravenous thrombolysis: Obvious head injury or stroke within 3 months; Subarachnoid or intracranial hemorrhage; History of intracranial hemorrhage; Intracranial tumor, arteriovenous malformation or aneurysm; Intracranial or spinal cord surgery within 3 months; Myocardial infarction within 3 months; Major surgery within 1 month; Gastrointestinal or urinary tract hemorrhage within the previous 30 days; Arterial puncture at a noncompressible site within the previous seven days; Active internal hemorrhage; Coagulation abnormalities: platelet count of \<100000/mm3; Aortic arch dissection; Heparin therapy within 24 hours; Infective endocarditis; Oral warfarin is being taken and INR\>1.6 or APTT abnormal; Systolic pressure ≥185 mmHg or diastolic pressure ≥110 mmHg; Blood glucose \< 50 mg/dl (2.7mmol/L); Neurological deficit after epileptic seizures; * Pregnancy; * Allergy to test drugs; * Comorbidity with other serious diseases; * Participating in other clinical trials within 3 months; * Patients not suitable for the study considered by researcher.

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Conditions

The condition(s) this trial relates to.

ischemic stroke

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Stroke, ischemic

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    2 sites. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • Department of Neurology, General Hospital of Northern Theater Command

    RECRUITING

    Shenyang, 110016, China

  • Hui-Sheng Chen

    RECRUITING

    Shenyang, None Selected, 110840, China

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