E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
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E.1.1.1 | Medical condition in easily understood language |
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E.1.1.2 | Therapeutic area | Diseases [C] - Cardiovascular Diseases [C14] |
MedDRA Classification |
E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 20.0 |
E.1.2 | Level | LLT |
E.1.2 | Classification code | 10055221 |
E.1.2 | Term | Ischemic stroke |
E.1.2 | System Organ Class | 100000013700 |
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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 |
Objective: To assess the effect of acetylsalicylic acid (ASA) and unfractionated heparin, alone, or in combination, in patients with AIS, who undergo IAT for a confirmed intracranial large vessel occlusion of the anterior circulation. |
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E.2.2 | Secondary objectives of the trial |
The secondary objective is to assess the safety and effect of unfractionated heparin and acetylsalicylic acid, alone, or in combination, on neurological outcome, revascularization and infarct size in patients who undergo intra-arterial treatment for AIS caused by a confirmed intracranial large vessel occlusion of the anterior circulation.
The tertiary objectives are 1) to collect (waste) biomaterials and to analyze biofactors in blood samples with respect to their potential for treatment effect modification, 2) to collect and analyze data regarding the deferred consent procedure and its association with patient recall and satisfaction at three months from randomization, and 3) to study the efficiency of national IAT implementation. To this end, we aim to collect data (time delays and diagnostics) from each step in the acute stroke pathway as input parameters for a simulation model. This way we can study the regional set-up of the IAT organizational model. |
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E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
- a clinical diagnosis of acute ischemic stroke;
- caused by intracranial large vessel occlusion of the anterior circulation (distal intracranial carotid artery or middle (M1/proximal M2) cerebral artery confirmed by neuro-imaging (CTA or MRA);
- CT or MRI ruling out intracranial hemorrhage;
- treatment possible (groin puncture) within 6 hours from symptom onset or last seen well;
- a score of at least 2 on the NIH Stroke Scale;
- age of 18 years or older;
- written informed consent (deferred). |
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E.4 | Principal exclusion criteria |
- Pre-stroke disability which interferes with the assessment of functional outcome at 90 days, i.e. mRS >2
- Contra-indications for ASA/unfractionated heparin, for instance: allergy, recent surgery, heparin induced thrombocytopenia.
- INR exceeding 3.0
- Thrombocyte count <1009/L
- Treatment with IV alteplase despite the following contra-indications for IV alteplase:
o cerebral infarction in the previous 6 weeks with residual neurological deficit or signs of recent infarction on neuroimaging,
o previous intracerebral hemorrhage within the previous 3 months,
o INR exceeding 1.7,
o prior use of direct oral anticoagulant (DOAC),
o IV alteplase infusion >4.5 hours after symptom onset. |
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E.5 End points |
E.5.1 | Primary end point(s) |
The primary outcome is the score on the modified Rankin Scale (mRS) at 90 days (± 14 days).30 The mRS is the preferred disability parameter of clinical trials in stroke. The mRS is an ordinal hierarchical scale incorporating six categories from 0 up to and including 5, and describes the range of disability encountered post stroke. ‘Death’ is assigned a score of 6. |
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E.5.1.1 | Timepoint(s) of evaluation of this end point |
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E.5.2 | Secondary end point(s) |
Secondary outcomes are the following:
- Extended treatment in cerebral ischaemia (eTICI) score on final angiography of IAT (Table 2)
- Recanalization rate at 24 hours, assessed with CTA
- Score on the NIHSS at 24 hours and 5-7 days, or at discharge
- Final infarct volume at 5-7 days, assessed with NCCT or MRI in a subset of 600 patients. Final infarct volume will be assessed with the use of an automated, validated algorithm. Infarct size at day 5-7 will be compared with plain CT and perfusion CT results (if available) at baseline.
- Dichotomized mRS of 0-1 vs. 2-6 at 90 days (± 14 days)
- Dichotomized mRS of 0-2 vs. 3-6 at 90 days (± 14 days)
- Dichotomized mRS of 0-3 vs. 4-6 at 90 days (± 14 days)
- Score on the EQ-5D-5L and Barthel index at 90 days (± 14 days)
Safety endpoints are the following:
- Intracerebral hemorrhage according to the Heidelberg Bleeding Classification
- Symptomatic intracerebral hemorrhage (sICH) scored according to the Heidelberg Bleeding Classification, with the addition of sICH that led to death and that was identified as the predominant cause of the neurologic deterioration
- Extracranial hemorrhages requiring transfusion or resulting in death
- Embolization in new territory on angiography during IAT
- Infarction in new territory within 5-7 days
- Death from all causes within 90 days (+14 days) |
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E.5.2.1 | Timepoint(s) of evaluation of this end point |
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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 | No |
E.8.1.5 | Parallel group | Yes |
E.8.1.6 | Cross over | No |
E.8.1.7 | Other | Yes |
E.8.1.7.1 | Other trial design description |
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E.8.2 | Comparator of controlled trial |
E.8.2.1 | Other medicinal product(s) | No |
E.8.2.2 | Placebo | No |
E.8.2.3 | Other | Yes |
E.8.2.3.1 | Comparator description |
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E.8.2.4 | Number of treatment arms in the trial | 6 |
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 | 4 |
E.8.5 | The trial involves multiple Member States | No |
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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LVLS and
The study will only be terminated prematurely if the Data Safety Monitoring Board recommends stopping. In case of premature termination of the study the database will be closed after 90 days assessment of the last enrolled patient and results will be reported |
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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 | 4 |
E.8.9.1 | In the Member State concerned months | 0 |
E.8.9.1 | In the Member State concerned days | 0 |