E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
Patients with acute ischemic stroke proven by MRI and unknown time from symptom onset which otherwise fulfil the approval criteria for intravenous thrombolysis in acute stroke |
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E.1.1.2 | Therapeutic area | Diseases [C] - Nervous System Diseases [C10] |
MedDRA Classification |
E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 15.0 |
E.1.2 | Level | PT |
E.1.2 | Classification code | 10061256 |
E.1.2 | Term | Ischaemic stroke |
E.1.2 | System Organ Class | 10029205 - Nervous system disorders |
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E.1.3 | Condition being studied is a rare disease | No |
E.2 Objective of the trial |
E.2.1 | Main objective of the trial |
The objective is to test the efficacy and safety of intravenous thrombolysis with Alteplase (rtPA) in patients waking up with stroke symptoms or patients with unknown time of symptom onset, in whom MRI scanning indicates the onset to have been within 4.5 hours. |
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E.2.2 | Secondary objectives of the trial |
Additional safey and efficacy end-points will be assessed, mostly through alternative means of analysis for the existing end-points. This will include:
- alternative definitions of favourable functional outcome that have been used in other clinical trials (global outcome score combining four separate scales; categorical shift analysis of the modified Rankin Scale; responder analysis using different favourable outcome definitions according to baseline severity)
- brain imaging based measures of effect (infarct volume at 22-36h scan, blood vessel status at 22-36h)
- other measures of health and wellbeing (incidence of depression at day 90; quality of life; healthcare system resource utilisation)
- alternative definitions of symptomatic intracranial haemorrhage |
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E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
Clinical Inclusion Criteria - Clinical diagnosis of acute ischemic stroke with unknown symptom onset (e.g., stroke symptoms recognized on awakening) - Last known well (without neurological symptoms) >4.5 hours of treatment initiation - Measurable disabling neurological deficit (defined as an impairment of one or more of the following: language, motor function, cognition, gaze, vision, neglect) - Age 18-80 years -Treatment can be started within 4.5 hours of symptom recognition (e.g., awakening) - Written informed consent by patient or proxy
Imaging Inclusion Criteria: - Acute stroke MRI including diffusion weighted imaging (DWI) and fluid attenuated inversion recovery (FLAIR) completed and showing a pattern of “DWI-FLAIR-mismatch”, i.e. acute ischemic lesion visibly on DWI (“positive DWI”) but no marked parenchymal hyperintensity visible on FLAIR (“negative FLAIR”) indicative of an acute ischemic lesion ≤4.5 hours of age
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E.4 | Principal exclusion criteria |
Clinical Exclusion Criteria - Planned or anticipated treatment with endovascular reperfusion strategies (e.g. intra-arterial thrombolysis, mechanical recanalization techniques) - Pre-stroke disability (inability to carry out all daily activities, requiring some help or supervision, i.e. slight disability corresponding to an MRS score >1) - Participation in any investigational study in the previous 30 days - Severe stroke by clinical assessment (e.g. NIHSS >25) - Hypersensitivity to Alteplase or any of the excipients - Pregnancy or lactating (formal testing needed in woman of childbearing potential; childbearing potential is assumed in women up to 55 years of age) - Significant bleeding disorder at present or within past 6 months - Known haemorrhagic diathesis - Manifest or recent severe or dangerous bleeding - Known history of or suspected intracranial haemorrhage - Suspected subarachnoid haemorrhage (even if CT is negative) or condition after subarachnoid haemorrhage from aneurysm - History of CNS damage (e.g. neoplasm, aneurysm, intracranial or spinal surgery) - Recent (within 10 days) traumatic external heart massage, obstetrical delivery, recent puncture of a non-compressible blood-vessel - Current use of anticoagulants (e.g. Phenprocoumon, Warfarin, new anticoagulants such as Dabigatran) or current use of heparin and elevated thromboplastin time (low-dose subcutaneous heparin is allowed) - Platelet count <100,000/mm3 (<100G/l) - Blood glucose <50 or >400 mg/dl (<2.8 or 22.2 mmol/l) - Severe uncontrolled hypertension, i.e. systolic blood pressure >185 mmHg or diastolic blood pressure >110 mmHg or requiring aggressive medication to maintain blood pressure within these limits (routine medical treatment is allowed to lower the blood pressure below these limits) - Manifest or recent bacterial endocarditis, pericarditis - Manifest or recent acute pancreatitis - Documented ulcerative gastrointestinal disease during the last 3 months, oesophageal varices, arterial aneurysm, arterial/venous malformations - Neoplasm with increased bleeding risk - Manifest severe liver disease including hepatic failure, cirrhosis, portal hypertension and active hepatitis - Major surgery or significant trauma in past 3 months - Stroke within 30 days - Life expectancy 6 months or less by judgement of the investigator - Any condition associated with a significantly increased risk of severe bleeding not mentioned above - Any contraindication to MRI (e.g. cardiac pacemaker)
Imaging Exclusion Criteria: - Poor MRI quality precluding interpretation according to the study protocol - Any sign of intracranial haemorrhage on baseline MRI - FLAIR showing a marked parenchymal hyperintensity in a region corresponding to the acute DWI lesion inidicative of an acute ischemic lesion with a high likelihood of being > 4.5 hours old - Large DWI lesion volume > 1/3 of the MCA or >50% of the anterior cerebral artery (ACA) or posterior cerebral artery (PCA) territory (visual inspection) or >100 ml - Any MRI findings indicative of a high risk of symptomatic intracranial haemorrhage related to potential IV-tPA treatment in the judgement of the investigator
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E.5 End points |
E.5.1 | Primary end point(s) |
Primary Efficacy Endpoint • “Favourable outcome” defined by a score of 0-1 on the modified Rankin Scale (MRS) 90 (±10) days after stroke Primary Safety Endpoints • Mortality 90( ±)10 days after stroke • Death or dependency 90 (±10) days after stroke (MRS 4-6)
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E.5.1.1 | Timepoint(s) of evaluation of this end point |
Primary Efficacy Endpoint • 90 ±10 days after stroke Primary Safety Endpoints • 90 ±10 days after stroke
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E.5.2 | Secondary end point(s) |
Secondary Efficacy Endpoints - Global Outcome Score (combination of MRS 0-1, NIHSS 0-1, Barthel Index [BI] 95-100, Glasgow Outcome Scale [GOS] 1) 90 (±10) days after stroke - Categorical shift in MRS 90 (±10) days after stroke - Responder analysis relating MRS 90 (±10) days after stroke to baseline NIHSS score: “response” defined by NIHSS <7 = MRS 0; NIHSS 8-14 = MRS 0-1; NIHSS >14 = MRS 0-2 - Infarct volume after 22-36 hours - Depressive symptoms 90 (±10) days after stroke (Beck Depression Inventory [BDI]) - Functional health status and quality of life 90 (±10) days after stroke (EQ-5D) - Use of health care system resources - 90 +/- 10 days after stroke
Secondary Safety Endpoints - Symptomatic intracranial haemorrhage (SICH) as defined in SITS-MOST - SICH as defined ECASS II - SICH as defined in NINDS - Parenchymal haemorrhage type 2 (PH-2) - 22-36 hours after treatment
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E.6 and E.7 Scope of the trial |
E.6 | Scope of the trial |
E.6.1 | Diagnosis | No |
E.6.2 | Prophylaxis | No |
E.6.3 | Therapy | Yes |
E.6.4 | Safety | Yes |
E.6.5 | Efficacy | Yes |
E.6.6 | Pharmacokinetic | No |
E.6.7 | Pharmacodynamic | No |
E.6.8 | Bioequivalence | No |
E.6.9 | Dose response | No |
E.6.10 | Pharmacogenetic | No |
E.6.11 | Pharmacogenomic | No |
E.6.12 | Pharmacoeconomic | No |
E.6.13 | Others | No |
E.7 | Trial type and phase |
E.7.1 | Human pharmacology (Phase I) | No |
E.7.1.1 | First administration to humans | No |
E.7.1.2 | Bioequivalence study | No |
E.7.1.3 | Other | No |
E.7.1.3.1 | Other trial type description | |
E.7.2 | Therapeutic exploratory (Phase II) | No |
E.7.3 | Therapeutic confirmatory (Phase III) | Yes |
E.7.4 | Therapeutic use (Phase IV) | No |
E.8 Design of the trial |
E.8.1 | Controlled | Yes |
E.8.1.1 | Randomised | Yes |
E.8.1.2 | Open | No |
E.8.1.3 | Single blind | No |
E.8.1.4 | Double blind | Yes |
E.8.1.5 | Parallel group | Yes |
E.8.1.6 | Cross over | No |
E.8.1.7 | Other | No |
E.8.2 | Comparator of controlled trial |
E.8.2.1 | Other medicinal product(s) | No |
E.8.2.2 | Placebo | Yes |
E.8.2.3 | Other | No |
E.8.2.4 | Number of treatment arms in the trial | 2 |
E.8.3 |
The trial involves single site in the Member State concerned
| No |
E.8.4 | The trial involves multiple sites in the Member State concerned | Yes |
E.8.4.1 | Number of sites anticipated in Member State concerned | 7 |
E.8.5 | The trial involves multiple Member States | Yes |
E.8.5.1 | Number of sites anticipated in the EEA | 50 |
E.8.6 Trial involving sites outside the EEA |
E.8.6.1 | Trial being conducted both within and outside the EEA | No |
E.8.6.2 | Trial being conducted completely outside of the EEA | No |
E.8.7 | Trial has a data monitoring committee | Yes |
E.8.8 |
Definition of the end of the trial and justification where it is not the last
visit of the last subject undergoing the trial
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E.8.9 Initial estimate of the duration of the trial |
E.8.9.1 | In the Member State concerned years | 3 |
E.8.9.1 | In the Member State concerned months | 11 |
E.8.9.1 | In the Member State concerned days | 30 |
E.8.9.2 | In all countries concerned by the trial years | 5 |
E.8.9.2 | In all countries concerned by the trial months | 0 |
E.8.9.2 | In all countries concerned by the trial days | 30 |