Safety and Efficacy of Alteplase When Administered in Chinese Patients With Acute Ischemic Hemispheric Stroke Where Thrombolysis is Initiated Between 3 and 4.5 Hours After Stroke Onset

Study Overview
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Brief Summary
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To evaluate the safety and efficacy of alteplase when administered between 3 and 4.5 hours after onset of stroke symptoms in Chinese patients with acute ischemic stroke

Official Title
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An Open Label, Multicenter, Single-arm Trial to Assess Safety and Efficacy of Alteplase (Rt-PA) in Chinese Patients With Acute Ischemic Hemispheric Stroke Where Thrombolysis is Initiated Between 3 and 4.5 Hours After Stroke Onset

Conditions
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Stroke

Intervention / Treatment
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* Drug: alteplase


Participation Criteria
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Eligibility Criteria
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Inclusion criteria: Age >= 18 years at screening(visit 1A) but <= 80 years Signed and dated written informed consent in accordance with good clinical practice and local legislation prior to admission to the trial Diagnosis of ischemic stroke with a measureable neurological deficit on National Institute of Health Stroke Scale (NIHSS) Thrombolytic therapy can be initiated within 3 to 4.5 hours of stroke onset Further inclusion criteria apply Exclusion criteria: Evidence of intracranial haemorrhage (ICH) on the (Computer Tomography) CT/(Magnetic Resonance Imaging)MRI-scan or symptoms suggestive of subarachnoid haemorrhage, even if the CT/MRI-scan is normal Acute bleeding diathesis Severe stroke as assessed clinically( e.g. National Institute of Health Stroke Scale>25) and/ or imaging demonstrates multi-lobar infarction (hypodensity >1/3 cerebral hemisphere) Severe uncontrolled arterial hypertension, e.g. systolic blood pressure>185 mmHg or diastolic blood pressure>110mmHg, or aggressive management (intravenous medication) necessary to reduce blood pressure to these limits Blood glucose <50mg/ dL or >400 mg/dL Any history of prior stroke in previous 3 months, or any history of prior stroke with concomitant diabetes Seizure at stroke onset Further exclusion criteria apply

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 80 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Intervention Model: Single Group Assignment
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: alteplase<br> | Drug: alteplase<br> <br> |

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| The Percentage of Patients With Modified Rankin Scale (mRS 0-1) (Favourable Outcome) Response at Day 90 After Stroke Onset by Face-to-face Interview With Patient | The percentage of patients with modified Rankin Scale (mRS 0-1) (favourable outcome) response at Visit 5 (Day 90) after stroke onset by face-to-face interview with patient. Modified Rankin Scale (mRS): 0 = no symptom at all, 1 = no significant disability, 2 = slight disability, 3 = moderate disability, 4 = moderately severe disability, 5 = severe disability, and 6 = dead. | 90 days | 
| The Percentage of Patients With Symptomatic Intracranial Haemorrhage (sICH) Centrally Evaluated by Data-monitoring Committee (DMC) Consultants According to European Cooperative Acute Stroke Study (ECASS) III Definition Within the Whole Study Period | The percentage of patients with symptomatic intracranial haemorrhage (sICH) centrally evaluated by data-monitoring committee (DMC) consultants according to European Cooperative Acute Stroke Study (ECASS) III definition within the whole study period. According to the protocol, sICH (ECASS III criteria) was defined as: any apparently extravascular blood in the brain or within the cranium that was associated with clinical deterioration (defined by an increase in the NIHSS score of 4 or more points), or that led to death and that was identified as the predominant cause of the neurological deterioration. sICH event was firstly evaluated by investigator. The DMC consultants evaluated all the patients with NIHSS score increase of at least 4 any time after treatment (including all fatal patients and sICH events evaluated by investigator). Wilson score confidence interval is presented. | 90 days | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| The Percentage of Global Outcome Responder at Day 90 if he/She Obtains the Following Results at Day 90 (for All of the 4 Endpoints) mRS Score of 0 to 1; Barthel Index Score >= 95; NIHSS Score of 0 to 1; Glasgow Outcome Scale Score of 1 | Percentage of global outcome responder at day 90 if he/she obtains the following results at day 90 for the endpoints mRS score of 0 to 1; Barthel Index score >= 95; NIHSS score of 0 to 1; Glasgow Outcome Scale score of 1. mRS: 0 = no symptom at all, 1 = no significant disability, 2 = slight disability, 3 = moderate disability, 4 = moderately severe disability, 5 = severe disability, and 6 = dead. NIHSS is composed of 11 items, and for each item a score of 0 typically indicates normal function in that specific ability, while a higher score is indicative of some level of impairment. Glasgow Outcome Score applies to patients with brain damage allowing the objective assessment of their recovery in five categories: 1 Good Recovery, 2 Moderately Disabled, 3 Severely Disabled, 4 Vegetative State, 5 Dead. Barthel Index score to measure performance in activities of daily living with the scale ranging from 0 to 100. Global outcome response is the intersection of above four respective outcomes. | 90 days | 
| Patient Survival Probability at Visit 5 (Censoring at Day 90) | Patient survival probability at visit 5 (censoring at day 90). The percentage of patients who died until Day 1, Day 7, Day 30, Day 90. | 90 days | 
| The Percentage of Patients With Death Related to Stroke or of Neurological Causes | The percentage of patients with death related to stroke or of neurological causes. | 90 days | 
| The Percentage of Patients With Severity of Adverse Events | The percentage of patients with severity of adverse events (AEs). The percentage of patients with different categories of AEs are presented. | On-treatment period, that is, within 7 days from the start of bolus | 
| The Percentage of Patients With Incidence of Cerebral Herniation and Symptomatic Edema | The percentage of patients with incidence of cerebral herniation and symptomatic edema. | 90 days |