Imatinib in Acute Ischaemic Stroke

• Sponsor: Niaz Ahmed (Other)
• Overall Status: Recruiting
• CT.gov ID: NCT03639922
• Collaborator: (none)
• Enrollment: 1,260
• Locations: 17
• Arms: 2
• Anticipated Duration (Months): 56
• Patients Per Site: 74.1
• Patients Per Site Per Month: 1.3

Study Details

Study Description

Brief Summary

A clinical trial comparing treatment with Imatinib to placebo when administered within 8 hours of stroke onset for 6 days, in addition to conventional stroke treatment after acute ischaemic stroke.

Condition or Disease	Intervention/Treatment	Phase
Acute Ischaemic Stroke	Drug: Imatinib 400mg; Drug: Placebo Oral Tablet	Phase 3

Detailed Description

The study aims to investigate if Imatinib reduces intracerebral haemorrhage and oedema in stroke patients after IV thrombolysis and/or trombectomy. Two important complications of ischaemic stroke and its acute treatment are haemorrhage into the infarcted tissue and cerebral oedema. Leading to worsening functional outcome in survivors. Both are caused by a disruption of the blood brain barrier (BBB) by ischemia of the brain vascular endothelium and associated cells involved in maintaining the BBB. Imatinib can reduce the damage to the BBB and hence reduce the formation of oedema and haemorrhage.

The study is a phase III randomised, double-blind placebo-controlled parallel-arm trilal of patents with acute ischaemic stroke. Assessing the Clinical variables at baseline and after 3 months.

Primary objective:

To investigate if Imatinib (800 mg / day) treatment initiated within 8 hours of symptom onset and given for 6 days improves functional outcome at three months after acute ischaemic stroke

Secondary objective:

1. Investigate if Imatinib treatment improves functional outcome at three months in acute ischaemic stroke patients treated with iv thrombolysis

2. Investigate if Imatinib treatment improves neurological outcome at three months after acute ischaemic stroke

3. Investigate if Imatinib treatment improves neurological outcome at three months in acute ischaemic stroke patients treated with iv thrombolysis

4. Investigate if Imatinib reduces the frequency and grade of ICH in patients with acute ischaemic stroke treated with iv thrombolysis

5. Investigate if Imatinib reduces the frequency and grade of cerebral oedema in patients with acute ischaemic stroke treated with iv thrombolysis

6. Examine serious and non-serious adverse events in patients treated with Imatinib

7. Investigate if Imatinib reduces mortality at 3 months after acute ischaemic stroke

8. Investigate if Imatinib reduces mortality at 3 months in acute ischaemic stroke patients treated with iv thrombolysis

Study Design

• Study Type: Interventional
• Anticipated Enrollment: 1260 participants
• Allocation: Randomized
• Intervention Model: Parallel Assignment
• Intervention Model Description: randomized, double-blind, placebo-controlled, parallel-armrandomized, double-blind, placebo-controlled, parallel-arm
• Masking: Triple (Participant, Care Provider, Investigator)
• Masking Description: The study is double-blind, only after the study is completed or terminated the treatments will be made available, or if requested by the data safety board, or if requested by treating clinician in association with possible SAE/SUSAR
• Primary Purpose: Treatment
• Official Title: Imatinib in Acute Ischaemic Stroke: A Phase 3, Randomized, Double-blind, Placebo Controlled, Parallel-arm Efficacy Trial of Imatinib in Acute Ischaemic Stroke
• Actual Study Start Date: Oct 1, 2018
• Anticipated Primary Completion Date: Dec 1, 2022
• Anticipated Study Completion Date: Jun 1, 2023

Arms and Interventions

Arm	Intervention/Treatment
Active Comparator: Imatinib Imatinib 400mg (2 tablets of 400mg) per day for 6 days	Drug: Imatinib 400mg; 2 tablets of Imatinib 400mg per day for 6 days
Placebo Comparator: Placebo 2 placebo tablets per day for 6 days	Drug: Placebo Oral Tablet; 2 tablets of placebo per day for 6 days

Outcome Measures

Primary Outcome Measures

1. Functional independency at 3 months as measured by modified Rankin Scale (mRS) Score 0-2. [3 months post treatment]

   For a positive outcome, patients in the active group treated with Imatinib 800 mg per day will have statistically significant higher functional independency compared to the control group treated with placebo.

Secondary Outcome Measures

1. Change in mRS score at 3 months compared to baseline [At baseline and 3 months post treatment]

   For a positive outcome, patients treated with Imatinib will have a favorable shift of the scale.

2. Frequency (%) of ICH on post-treatment imaging scan in patients undergoing IV thrombolysis and or endovascular thrombectomy. [1 day post treatment start]

3. Grade of ICH (COED 1-3) on post-treatment imaging scan in patients undergoing IV thrombolysis and or endovascular thrombectomy. [1 day post treatment start]

4. Frequency (%) of cerebral oedema on post-treatment imaging scan in patients undergoing IV thrombolysis and or endovascular thrombectomy. [1 day post treatment start]

5. Grade (COED 1-3) of cerebral oedema on post-treatment imaging scan in patients undergoing IV thrombolysis and or endovascular thrombectomy. [1 day post treatment start]

6. Serious and non-serious adverse events [3 months post teatment]

7. Mortality at 3 months. [3 months post treatment]

Eligibility Criteria

Criteria

• Ages Eligible for Study: 18 Years to 85 Years
• Sexes Eligible for Study: All
• Accepts Healthy Volunteers: No

Inclusion Criteria:

1. Clinical diagnosis of acute ischaemic stroke with a neurological deficit corresponding to 6 points or higher on the NIHSS score

2. at the time of randomization if no recanalisation therapy performed

3. prior to iv thrombolysis therapy alone or prior to thrombectomy alone if performed

4. prior to iv thrombolysis if both iv thrombolysis and thrombectomy performed Ischaemic stroke is defined as an event characterised by sudden onset of acute focal neurological deficit, presumed to be caused by cerebral ischaemia and an imaging scan excluding any intracranial haemorrhage.

5. Age 18-85 years

6. Patients should be randomized as soon as possible but not later than 8 hours of symptom onset.

7. If the patient receives iv thrombolysis alone, patient should be randomized and study drug should be given within one hour after completion of iv thrombolysis infusion

8. If the patient receives endovascular thrombectomy (with or without prior iv thrombolysis), patient should be randomized within two hours after completion of endovascular thrombectomy and study drug given as soon as possible after randomization.

9. iv thrombolysis, if performed, is done in agreement with European Stroke Organisation guidelines and has been initiated within 4.5 hours of stroke onset (see below separate criteria for indications / contraindications)

10. Endovascular thrombectomy, if performed, is done in agreement with recently published American Stroke Association guidelines, and fulfilling the following criteria

11. Confirmed diagnosis on Computed Tomography Angiography (CTA) or Magnetic Resonance Angiography (MRA) of acute occlusion of either of the first two segments of the Middle Cerebral Artery (M1 or M2), terminal Carotid Artery, first segment of the Anterior Cerebral Artery (A1), or Basilar Artery, consistent with the clinical symptoms.

12. thrombectomy has been initiated within 8 hours of symptom onset (defined as start with femoral artery (groin) puncture)

13. Patient is competent to make a decision and has provided informed consent with regard to participation in the study, retrieval and storage of data and follow up procedures

Exclusion Criteria:

General

1. Imaging scans show signs of large current infarction as defined by more than 1/3 of the Middle Cerebral Artery territory or ½ of other vascular territories

2. ) Known significant pre-stroke disability (mRS ≥2)

3. Severe comorbidities such as advanced dementia (estimate pre-stroke if otherwise healthy), terminal illness, and other severe medical conditions with anticipated life expectancy less than 6 months.

4. Acute pancreatitis

5. Severe hepatic dysfunction, including hepatic failure, cirrhosis, portal hypertension (oesophageal varices) and active hepatitis

6. Ongoing treatment with chemotherapy

7. Drugs which may increase the plasma concentration of Imatinib - ketokonazol, itrakonazol, erythromycin and claritomycin

8. Drugs which may decrease the plasma concentration of Imatinib: Dexametason, phenytoin, karbamazepin, rifampizin, phenobarbital, fosphenytoin, primidon, Hypericum perforatum (Johannesört, St John's wort)

9. Female patients with childbearing potential, if pregnancy cannot be excluded by pregnancy test (urine point-of-care pregnancy test).

10. Patient is participating in other interventional study

Additional Exclusion criteria for patients treated with intravenous thrombolysis (IVT)

1. Severe stroke as assessed clinically by NIHSS>25

2. Administration of heparin within the previous 48 hours preceding the onset of stroke with an elevated activated thromboplastin time (aPTT) at presentation, or corresponding low-molecular heparin.

3. Patients receiving oral anticoagulants, e.g. warfarin sodium (INR>1.7) or direct oral anticoagulation: dabigatran ( aPTT>40s), apixaban, rivaroxaban.

4. Platelet count below 100,000/mm3. Significant bleeding disorder at present or within the past 6 months, known haemorrhagic diathesis.

5. History or evidence or suspicion of intracranial haemorrhage including sub-arachnoid haemorrhage

6. Systolic blood pressure >185 mmHg or diastolic blood pressure >110 mmHg, in spite of repeated doses of i.v. medication to reduce blood pressure below these limits.

7. History of the following conditions: prior ischemic stroke within 3 months, intra-axial neoplasm, intracranial or spinal surgery within the prior 3 months, recent severe head trauma within 3 months or unruptured intracranial aneurysm>5 mm.

8. Major surgery or significant trauma in the past 10 days

Contacts and Locations

Locations

	Site	City	State	Country	Postal Code
1	Mälarsjukhuset Eskilstuna	Eskilstuna		Sweden	633 49
2	Sahlgrenska Universitetssjukhuset	Göteborg		Sweden	413 45
3	Hässleholms sjukhus	Hässleholm		Sweden	28151
4	Centralsjukhuset Karlstad	Karlstad		Sweden	65185
5	Centralsjukhuset Kristianstad	Kristianstad		Sweden	291 85
6	Skånes Universitetssjukhus Lund	Lund		Sweden	221 85
7	Skånes Universitetssjukhus Malmö	Malmö		Sweden	205 02
8	Skaraborgs sjukhus Skövde	Skövde		Sweden	541 42
9	Capio S:t Görans Hospital	Stockholm		Sweden	112 81
10	Södersjukhuset	Stockholm		Sweden	118 83
11	Karolinska Universitetssjukhuset Huddinge	Stockholm		Sweden	141 86
12	Karolinska Universitetssjukhuset Solna	Stockholm		Sweden	171 76
13	Danderyds sjukhus	Stockholm		Sweden	182 88
14	Sundsvalls Sjukhus	Sundsvall		Sweden	856 43
15	Umeå University Hospital	Umeå		Sweden	90185
16	Uppsala Akademiska Sjukhus	Uppsala		Sweden	751 85
17	Västmanlands sjukhus Västerås	Västerås		Sweden	721 89

Sponsors and Collaborators

• Niaz Ahmed

Investigators

• Study Director: Niaz Ahmed, MD PhD, Karolinska Institutet

Study Documents (Full-Text)

None provided.

More Information

Publications

None provided.

• Responsible Party: Niaz Ahmed, Sponsor, Coordinating investigator, Karolinska Institutet
• ClinicalTrials.gov Identifier: NCT03639922
• Other Study ID Numbers: I-StrokeII2016; 2017-000075-85
• First Posted: Aug 21, 2018
• Last Update Posted: Sep 16, 2020
• Last Verified: Sep 1, 2020

• Individual Participant Data (IPD) Sharing Statement: No
• Plan to Share IPD: No
• Studies a U.S. FDA-regulated Drug Product: No
• Studies a U.S. FDA-regulated Device Product: No
• Keywords provided by Niaz Ahmed, Sponsor, Coordinating investigator, Karolinska Institutet: acute ischaemic stroke; Imatinib; blood-brain-barrier; trombectomy; iv trombolysis
• Additional relevant MeSH terms: Stroke; Ischemic Stroke; Cerebral Infarction; Ischemia; Imatinib Mesylate

Study Results

No Results Posted as of Sep 16, 2020