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Japan Alteplase Clinical Trial (J-ACT): Efficacy and Safety Study of Tissue Plasminogen Activator (Alteplase) for Ischemic Stroke

Primary Purpose

Cerebral Infarction, Brain Ischemia

Status
Completed
Phase
Phase 3
Locations
Japan
Study Type
Interventional
Intervention
Alteplase
Sponsored by
Mitsubishi Tanabe Pharma Corporation
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional treatment trial for Cerebral Infarction focused on measuring acute stroke, thrombolytic therapy, tissue plasminogen activator

Eligibility Criteria

20 Years - undefined (Adult, Older Adult)All SexesDoes not accept healthy volunteers

Inclusion Criteria: Patients with acute ischemic stroke within 3 hours of onset, with a clearly defined time of onset Exclusion Criteria: patients with rapidly improving neurological symptoms or with minor neurological deficit (National Institutes of Health Stroke Scale (NIHSS) score of ≤4) prior to the start of treatment Computed Tomography (CT) evidence of non-minor early ischemic signs (minor early ischemic sign was defined as the involvement of one-third or less of the middle cerebral artery area) CT evidence of cerebral hemorrhage or subarachnoid hemorrhage symptoms suggestive of subarachnoid hemorrhage lactation, pregnancy or suggestive pregnancy; menstruation platelet count below 100,000/mm3 heparin administration within 48 hours preceding stroke onset with an elevated activated partial thromboplastin time (APTT); current use of oral anticoagulants with an International Normalized Ratio (INR) of ≥1.7; use of drugs not allowed to be administered concomitantly with alteplase (other thrombolytic agents, ozagrel sodium, argatroban and edaravone) prior to the study treatment major surgery or serious trauma within the preceding 14 days; serious head or spinal cord trauma within the preceding 3 months a history of gastrointestinal or urinary tract hemorrhage within the previous 21 days arterial puncture at a noncompressible site within the preceding 7 days a history of stroke within the preceding 3 months; a history of intracranial hemorrhage or increased risk of intracranial hemorrhage because of cerebral aneurysm, arteriovenous malformation, neoplasm, etc. concurrent severe hepatic or renal dysfunction malignant tumor under treatment a systolic blood pressure of >185 mmHg or diastolic blood pressure of >110 mmHg a need for aggressive treatment to reduce blood pressure to below these limits(14)) blood glucose levels of <50 mg/dL or >400 mg/dL acute myocardial infarction(AMI) or endocarditis after AMI concurrent infectious endocarditis, moya-moya disease (Willis circle occlusion syndrome), aortic dissection, neck trauma, etc.; strong suspicion of ischemic cerebrovascular disorder caused by non-thrombotic occlusion or any other hemodynamic condition seizure at the onset of stroke coma (a Japan Coma Scale score of ≥100) an mRS score of ≥2 before stroke onset a history of hypersensitivity to protein preparations difficulty in monitoring for 3 months less than 3 months since any other clinical trial

Sites / Locations

  • National Cardiovascular Center

Arms of the Study

Arm 1

Arm Type

Experimental

Arm Label

Alteplase

Arm Description

0.6mg/kg intravenous alteplase with 10% being administered as a bolus followed by continuous infusion of the remainder over 1 hour

Outcomes

Primary Outcome Measures

Number of Patients With a Modified Rankin Scale (mRS) Score of 0-1 at 3 Months
The number of patients with a mRS score of 0-1. The mRS has 6 items, where 0 = No symptoms at all, 1 = No significant disability despite symptoms, 2 = Slight disability, 3 = Moderate disability, 4 = Moderately severe disability, 5 = Severe disability. The higher scores reflect increased disability.
Number of Patients With Symptomatic Intracranial Hemorrhage (sICH) Within 36 Hours
The number of patients with sICH

Secondary Outcome Measures

Full Information

First Posted
September 5, 2005
Last Updated
February 29, 2012
Sponsor
Mitsubishi Tanabe Pharma Corporation
Collaborators
Kyowa Hakko Kogyo Co., Ltd.
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1. Study Identification

Unique Protocol Identification Number
NCT00147316
Brief Title
Japan Alteplase Clinical Trial (J-ACT): Efficacy and Safety Study of Tissue Plasminogen Activator (Alteplase) for Ischemic Stroke
Official Title
Japan Alteplase Clinical Trial (J-ACT): Phase 3 Efficacy and Safety Study of Tissue Plasminogen Activator (Alteplase) for Acute Ischemic Stroke Within 3 Hours of Onset
Study Type
Interventional

2. Study Status

Record Verification Date
February 2012
Overall Recruitment Status
Completed
Study Start Date
April 2002 (undefined)
Primary Completion Date
undefined (undefined)
Study Completion Date
September 2003 (undefined)

3. Sponsor/Collaborators

Name of the Sponsor
Mitsubishi Tanabe Pharma Corporation
Collaborators
Kyowa Hakko Kogyo Co., Ltd.

4. Oversight

5. Study Description

Brief Summary
Based on previous studies comparing Duteplase[a recombinant tissue plasminogen activator (rt-PA) very similar to alteplase] doses, we performed a clinical trial with 0.6mg/kg, which is lower than the internationally approved dosage of 0.9mg/kg, aiming to assess the efficacy and safety of alteplase for the Japanese.
Detailed Description
Based on previous studies comparing Duteplase ( an rt-PA very similar to alteplase) doses, we performed a clinical trial with 0.6mg/kg, which is lower than the internationally approved dosage of 0.9mg/kg, aiming to assess the efficacy and safety of alteplase for the Japanese. The primary endpoints were the rate of patients with mRS score of 0-1 at 3 months and the incidence of sICH within 36 hours. Thresholds for these endpoints were determined by calculating 90% confidence intervals of weighted averages derived from published reports. The protocol was defined according to the National Institute of Neurological Disorders and Stroke (NINDS) rt-PA stroke study with slight modifications.

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Cerebral Infarction, Brain Ischemia
Keywords
acute stroke, thrombolytic therapy, tissue plasminogen activator

7. Study Design

Primary Purpose
Treatment
Study Phase
Phase 3
Interventional Study Model
Single Group Assignment
Masking
None (Open Label)
Allocation
Non-Randomized
Enrollment
103 (Actual)

8. Arms, Groups, and Interventions

Arm Title
Alteplase
Arm Type
Experimental
Arm Description
0.6mg/kg intravenous alteplase with 10% being administered as a bolus followed by continuous infusion of the remainder over 1 hour
Intervention Type
Drug
Intervention Name(s)
Alteplase
Intervention Description
0.6mg/kg intravenous alteplase with 10% being administered as a bolus followed by continuous infusion of the remainder over 1 hour
Primary Outcome Measure Information:
Title
Number of Patients With a Modified Rankin Scale (mRS) Score of 0-1 at 3 Months
Description
The number of patients with a mRS score of 0-1. The mRS has 6 items, where 0 = No symptoms at all, 1 = No significant disability despite symptoms, 2 = Slight disability, 3 = Moderate disability, 4 = Moderately severe disability, 5 = Severe disability. The higher scores reflect increased disability.
Time Frame
at 3 months
Title
Number of Patients With Symptomatic Intracranial Hemorrhage (sICH) Within 36 Hours
Description
The number of patients with sICH
Time Frame
within 36 hours

10. Eligibility

Sex
All
Minimum Age & Unit of Time
20 Years
Accepts Healthy Volunteers
No
Eligibility Criteria
Inclusion Criteria: Patients with acute ischemic stroke within 3 hours of onset, with a clearly defined time of onset Exclusion Criteria: patients with rapidly improving neurological symptoms or with minor neurological deficit (National Institutes of Health Stroke Scale (NIHSS) score of ≤4) prior to the start of treatment Computed Tomography (CT) evidence of non-minor early ischemic signs (minor early ischemic sign was defined as the involvement of one-third or less of the middle cerebral artery area) CT evidence of cerebral hemorrhage or subarachnoid hemorrhage symptoms suggestive of subarachnoid hemorrhage lactation, pregnancy or suggestive pregnancy; menstruation platelet count below 100,000/mm3 heparin administration within 48 hours preceding stroke onset with an elevated activated partial thromboplastin time (APTT); current use of oral anticoagulants with an International Normalized Ratio (INR) of ≥1.7; use of drugs not allowed to be administered concomitantly with alteplase (other thrombolytic agents, ozagrel sodium, argatroban and edaravone) prior to the study treatment major surgery or serious trauma within the preceding 14 days; serious head or spinal cord trauma within the preceding 3 months a history of gastrointestinal or urinary tract hemorrhage within the previous 21 days arterial puncture at a noncompressible site within the preceding 7 days a history of stroke within the preceding 3 months; a history of intracranial hemorrhage or increased risk of intracranial hemorrhage because of cerebral aneurysm, arteriovenous malformation, neoplasm, etc. concurrent severe hepatic or renal dysfunction malignant tumor under treatment a systolic blood pressure of >185 mmHg or diastolic blood pressure of >110 mmHg a need for aggressive treatment to reduce blood pressure to below these limits(14)) blood glucose levels of <50 mg/dL or >400 mg/dL acute myocardial infarction(AMI) or endocarditis after AMI concurrent infectious endocarditis, moya-moya disease (Willis circle occlusion syndrome), aortic dissection, neck trauma, etc.; strong suspicion of ischemic cerebrovascular disorder caused by non-thrombotic occlusion or any other hemodynamic condition seizure at the onset of stroke coma (a Japan Coma Scale score of ≥100) an mRS score of ≥2 before stroke onset a history of hypersensitivity to protein preparations difficulty in monitoring for 3 months less than 3 months since any other clinical trial
Overall Study Officials:
First Name & Middle Initial & Last Name & Degree
Takenori Yamaguchi, MD
Organizational Affiliation
National Cerebral and Cardiovascular Center, Japan
Official's Role
Study Chair
Facility Information:
Facility Name
National Cardiovascular Center
City
Suita
State/Province
Osaka
ZIP/Postal Code
565-8565
Country
Japan

12. IPD Sharing Statement

Citations:
PubMed Identifier
16763187
Citation
Yamaguchi T, Mori E, Minematsu K, Nakagawara J, Hashi K, Saito I, Shinohara Y; Japan Alteplase Clinical Trial (J-ACT) Group. Alteplase at 0.6 mg/kg for acute ischemic stroke within 3 hours of onset: Japan Alteplase Clinical Trial (J-ACT). Stroke. 2006 Jul;37(7):1810-5. doi: 10.1161/01.STR.0000227191.01792.e3. Epub 2006 Jun 8.
Results Reference
result
PubMed Identifier
21737309
Citation
Hirano T, Sasaki M, Tomura N, Ito Y, Kobayashi S; Japan Alteplase Clinical Trial Group. Low Alberta stroke program early computed tomography score within 3 hours of onset predicts subsequent symptomatic intracranial hemorrhage in patients treated with 0.6 mg/kg Alteplase. J Stroke Cerebrovasc Dis. 2012 Nov;21(8):898-902. doi: 10.1016/j.jstrokecerebrovasdis.2011.05.018. Epub 2011 Jul 7.
Results Reference
derived

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Japan Alteplase Clinical Trial (J-ACT): Efficacy and Safety Study of Tissue Plasminogen Activator (Alteplase) for Ischemic Stroke

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