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Trial details imported from ClinicalTrials.gov
For full trial details, please see the original record at
https://clinicaltrials.gov/study/NCT05203224
Registration number
NCT05203224
Ethics application status
Date submitted
10/01/2022
Date registered
24/01/2022
Titles & IDs
Public title
Improving Early Reperfusion With Adjuvant Dornase Alfa in Large Vessel Ischemic Stroke (EXTEND-IA DNase)
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Scientific title
Improving Early Reperfusion With Adjuvant Dornase Alfa in Large Vessel Ischemic Stroke (EXTEND-IA DNase)
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Secondary ID [1]
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MBC2101
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Universal Trial Number (UTN)
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Trial acronym
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Linked study record
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Health condition
Health condition(s) or problem(s) studied:
Ischemic Stroke
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Condition category
Condition code
Stroke
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Haemorrhagic
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Stroke
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Ischaemic
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Neurological
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Other neurological disorders
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Cardiovascular
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0
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Diseases of the vasculature and circulation including the lymphatic system
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Intervention/exposure
Study type
Interventional
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Description of intervention(s) / exposure
Treatment: Drugs - Dornase Alfa
Experimental: Intravenous Dornase alfa (DNase) - Patients will receive a single intravenous dose of dornase alfa (at either 0.125mg/kg, 0.25mg/kg, 0.5mg/kg or 1mg/kg in escalating tiers), administered as a bolus over \~30 seconds.
Treatment: Drugs: Dornase Alfa
Intravenous Dornase alfa
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Intervention code [1]
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Treatment: Drugs
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Comparator / control treatment
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Control group
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Outcomes
Primary outcome [1]
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Proportion of patients with substantial angiographic reperfusion or absence of retrievable intracranial thrombus at initial angiogram without symptomatic intracerebral hemorrhage
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Assessment method [1]
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composite outcome of reperfusion on initial angiogram (day 0 - expanded Treatment In Cerebral Infarction \[eTICI\] 2b-3 or no retrievable intracranial thrombus) and assessment of symptomatic intracerebral hemorrhage on brain imaging 24h post-treatment. eTICI 2b-3 indicates reperfusion of \>50% of the initially involved arterial territory.
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Timepoint [1]
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24 hours post-treatment
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Eligibility
Key inclusion criteria
1. Patients presenting with acute ischemic stroke eligible, using standard criteria, to receive IV thrombolytics within 4.5 hours of stroke onset
2. Patient's age is =18 years
3. Intention to perform endovascular thrombectomy Imaging inclusion criteria
4. Arterial occlusion on CTA or MRA of the ICA, M1, M2 or basilar artery
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Minimum age
18
Years
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Maximum age
No limit
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Sex
Both males and females
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Can healthy volunteers participate?
No
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Key exclusion criteria
1. Intracranial hemorrhage (ICH) identified by CT or MRI
2. Rapidly improving symptoms at the discretion of the investigator
3. Pre-stroke mRS score of = 4 (indicating previous disability)
4. Hypodensity in >1/3 MCA territory or equivalent proportion of basilar artery territory on non-contrast CT
5. Contraindication to imaging with contrast agents
6. Any terminal illness such that patient would not be expected to survive more than 1 year
7. Any condition that, in the judgment of the investigator could impose hazards to the patient if study therapy is initiated or affect the participation of the patient in the study.
8. Pregnant or lactating women
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Study design
Purpose of the study
Treatment
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Allocation to intervention
NA
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Procedure for enrolling a subject and allocating the treatment (allocation concealment procedures)
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Methods used to generate the sequence in which subjects will be randomised (sequence generation)
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Masking / blinding
Open (masking not used)
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Who is / are masked / blinded?
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Intervention assignment
Single group
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Other design features
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Phase
Phase 2
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Type of endpoint/s
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Statistical methods / analysis
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Recruitment
Recruitment status
Recruiting
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Data analysis
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Reason for early stopping/withdrawal
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Other reasons
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Date of first participant enrolment
Anticipated
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Actual
18/02/2022
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Date of last participant enrolment
Anticipated
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Actual
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Date of last data collection
Anticipated
31/12/2025
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Actual
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Sample size
Target
300
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Accrual to date
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Final
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Recruitment in Australia
Recruitment state(s)
QLD,SA,VIC
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Recruitment hospital [1]
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Princess Alexandra Hospital - Brisbane
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Recruitment hospital [2]
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Royal Adelaide Hospital - Adelaide
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Recruitment hospital [3]
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Royal Melbourne Hospital - Melbourne
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Recruitment postcode(s) [1]
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4102 - Brisbane
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Recruitment postcode(s) [2]
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5000 - Adelaide
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Recruitment postcode(s) [3]
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3050 - Melbourne
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Funding & Sponsors
Primary sponsor type
Other
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Name
University of Melbourne
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Address
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Country
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Ethics approval
Ethics application status
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Summary
Brief summary
Patients presenting to the emergency department with acute ischemic stroke, who are are eligible for standard intravenous thrombolytic therapy within 4.5 hours of stroke onset will be assessed for major vessel occlusion to determine their eligibility for the trial. All participants will receive intravenous tenecteplase (or alteplase due to manufacturer shortage) and endovascular thrombectomy as standard care. The trial is a Bayesian Optimised Phase 2 dose-finding umbrella trial (single arm versus objective performance criterion of 20% substantial reperfusion prior to endovascular thrombectomy based on the EXTEND-IA TNK trials NCT02388061, NCT03340493). The aim is to determine the optimal dose of intravenous dornase alfa (recombinant human DNase 1) with sufficient promise to take forward in a seamless phase 2b/3 design.
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Trial website
https://clinicaltrials.gov/study/NCT05203224
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Trial related presentations / publications
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Public notes
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Contacts
Principal investigator
Name
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Bruce CV Campbell, MBBS PhD
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Address
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University of Melbourne
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Country
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Phone
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Fax
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Email
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Contact person for public queries
Name
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Bruce CV Campbell, MBBS PhD
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Address
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Country
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Phone
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0393427000
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Fax
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Email
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[email protected]
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Contact person for scientific queries
Data sharing statement
Will individual participant data (IPD) for this trial be available (including data dictionaries)?
Yes
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What data in particular will be shared?
Anonymized individual patient data will be uploaded to the Virtual Stroke Trials Archive (http://www.virtualtrialsarchives.org/vista/) 2 years after the publication of the primary manuscript. Qualified investigators can access data after submission of a project proposal that has been approved by the VISTA steering committee.
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When will data be available (start and end dates)?
2 years after the publication of the primary manuscript
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Available to whom?
Qualified investigators can access data after submission of a project proposal that has been approved by the VISTA steering committee.
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Available for what types of analyses?
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How or where can data be obtained?
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What supporting documents are/will be available?
No Supporting Document Provided
Results publications and other study-related documents
No documents have been uploaded by study researchers.
Results not provided in
https://clinicaltrials.gov/study/NCT05203224