Mechanical Opening Device Implantation Following Intravenous r-tPA for Recanalization in Acute Ischemic Stroke

NCT ID: NCT02347358

Last Updated: 2015-01-27

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Clinical Phase

PHASE2

Total Enrollment

100 participants

Study Classification

INTERVENTIONAL

Study Start Date

2015-02-28

Study Completion Date

2017-04-30

Brief Summary

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This study is to test a hypothesis that temporary implantation of JRecanTM blood flow recanalisation device within 6.5 hours of symptom onset of acute ischemic stroke due to a major intracranial artery occlusion following IV r-tPA can provide a greater rate of early successful recanalisation than treatment of IV r-tPA alone.

Detailed Description

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Conditions

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Ischemic Cerebrovascular Accident

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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IV r-tPA with JRecanTM blood FR device

Dual IV r-tPA therapy and adjunctive treatment with JRecanTM blood flow recanalisation device

Group Type EXPERIMENTAL

JRecanTM blood FR device

Intervention Type DEVICE

JRecanTM blood flow recanalisation device

IV r-tPA

IV infusion of r-tPA

Group Type ACTIVE_COMPARATOR

IV r-tPA

Intervention Type DRUG

intravenous recombinant human tissue plasminogen activator

Interventions

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JRecanTM blood FR device

JRecanTM blood flow recanalisation device

Intervention Type DEVICE

IV r-tPA

intravenous recombinant human tissue plasminogen activator

Intervention Type DRUG

Other Intervention Names

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intravenous recombinant human tissue plasminogen activator

Eligibility Criteria

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Inclusion Criteria

1. Age 18 - 75
2. Clinical presentations consistent with acute ischemic stroke
3. NIHSS ≥ 8 and \< 30 at the time of randomization
4. Initiation of the correct IV t-PA dose treatment within 4.5 hours of onset of stroke symptoms (onset time is defined as the last time when the patient was witnessed to be at baseline)
5. Complement of catheter angiography within 6.5 hours of onset of stroke symptoms
6. Thrombolysis in myocardial Infarction (TIMI) 0-1 flow in the intracranial internal carotid artery, M1 segment of the MCA, basilar artery, or intracranial vertebral artery with contralaterally chronic intracranial vertebral artery occlusion confirmed by catheter angiography
7. The acute occlusion lesion is accessible to the JRecanTM blood flow recanalisation device
8. Functional independence before this time stroke (Modified Rankin Score ≤ 1)
9. Subject or subject's legally authorized representative has signed and dated an Informed Consent Form according to country regulations, ethics committee requirements.
10. Subject is willing to conduct protocol-required follow-up visits.

Exclusion Criteria

1. NIHSS \<8 or ≥30
2. Rapid neurological improvement prior to study randomization
3. Female who is pregnant or lactating or has a positive pregnancy test at time of admission
4. Taking part in another clinical study.
5. History of stroke in the past 3 months.
6. Current participation in another investigational drug or device treatment study.
7. Uncontrolled hypertension defined as systolic blood pressure \> 185 or diastolic blood pressure \> 110 that cannot be controlled except with continuous parenteral antihypertensive medication.
8. Known hereditary or acquired hemorrhagic diathesis, coagulation factor deficiency. (Patients without history or suspicion of coagulopathy do not require INR or prothrombin time lab results to be available prior to enrollment.)
9. Warfarin therapy with INR greater than 1.7.
10. Low molecular Weight Heparins (such as Dalteparin, Enoxaparin, Tinzaparin, Fondaparinux) as DVT prophylaxis or in full dose within the last 24 hours from screening.
11. Subject who has received heparin or a direct thrombin inhibitor (e.g. rivaroxaban, Angiomax™, argatroban, Refludan™) within the last 48 hours must have a normal partial thromboplastin time (PTT) to be eligible.
12. Subject who has received factor Xa inhibitor therapy (e.g. dabigatran) within the past 24 hours must have a normal ecarin clotting time to be eligible. Subject who has received factor Xa inhibitor therapy more than 24 hours ago but less than 48 hours ago must have a normal partial thromboplastin time (PTT) to be eligible.
13. Baseline lab values: glucose \< 50 mg/dl or \> 400 mg/dl, platelets \< 100,000, or Hct \< 25.
14. Renal Failure as defined by a serum creatinine \> 2.0 or Glomerular Filtration Rate \[GFR\] \< 30.
15. Subject who requires hemodialysis or peritoneal dialysis, or who have a contraindication to an angiogram for whatever reason.
16. Life expectancy of less than 90 days.
17. Previous intra-cranial hemorrhage, neoplasm, subarachnoid hemorrhage, cerebral aneurysm, or arteriovenous malformation.
18. Clinical presentation suggests a subarachnoid hemorrhage, even if initial CT or MRI scan is normal.
19. Presumed septic embolus, or suspicion of bacterial endocarditis.
20. Presumed pericarditis including pericarditis after acute myocardial infarction.
21. Suspicion of aortic dissection.
22. Surgery or biopsy of parenchymal organ within 30 days.
23. Trauma with internal injuries or ulcerative wounds within 30 days.
24. Severe head trauma or head trauma with loss of consciousness within 90 days.
25. Any active or recent hemorrhage within 30 days.
26. Cerebral vasculitis.
27. Subject with a pre-existing neurological or psychiatric disease that would confound the neurological and functional evaluations.
Minimum Eligible Age

18 Years

Maximum Eligible Age

75 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Hunan Rui Kang Tong technology development co., LTD

UNKNOWN

Sponsor Role collaborator

The Second Artillery General Hospital

OTHER

Sponsor Role lead

Responsible Party

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Weijian Jiang

Principal Investigator

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Weijian Jiang, MD,PhD

Role: PRINCIPAL_INVESTIGATOR

New Era Stroke Care and Research Institute, The Second Artillery General Hospital Beijing

Central Contacts

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Weijian Jiang, MD,PhD

Role: CONTACT

+8613901122837

Other Identifiers

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2013CB733805

Identifier Type: -

Identifier Source: org_study_id

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