E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
Patients with acute ischaemic 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.1.1.1 | Medical condition in easily understood language |
Patients with acute ischaemic 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 | 18.1 |
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 MRI-based intravenous thrombolysis with Alteplase in patients waking-up with stoke symptoms or patients with unknown sumptom onset. |
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E.2.2 | Secondary objectives of the trial |
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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 Ranking 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
- 90 (+/-10) days after stroke |
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E.5.2 | Secondary end point(s) |
Secondary efficacy endpoints :
- Global Outcome Score (combination of MRS0-1, NIHSS 0-1, Barthel Index 95-100, Glasgow Coma Scale 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) dyays after stroke (Beck Depression Inventory)
- 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 in ECASS II
- SICH as defined in NINDS
- Parenchymal haemorrhage type 2 (PH-2)
- 22-36 hours after treatment |
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E.5.2.1 | Timepoint(s) of evaluation of this end point |
90 (+/-10) days after stroke |
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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 | 3 |
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 | 2 |
E.8.9.1 | In the Member State concerned months | |
E.8.9.1 | In the Member State concerned days | |
E.8.9.2 | In all countries concerned by the trial years | 4 |