This clinical trial will enroll 110 patients from approximately 15 Canadian stroke centres. Patients coming to the emergency department with bleeding in the brain not due to trauma or other known causes who can be treated within 6 hours of onset will undergo CT angiography using standard CT scanners ("CAT scan"). Those with a "spot sign", a type of marker on the CT scan that shows the brain is still bleeding, will be randomly assigned to a single injection of "factor 7"(a blood clotting drug used in hemophilia) or placebo (inactive saline); patients without a spot sign will not be treated. The researchers will look at how much bleeding happens after the treatments are administered, as well as clinical outcomes such as death and disability. The researchers think that factor 7 will cause the bleeding to stop faster and possibly decrease death and disability.
This phase II double blind RCT will enroll 110 patients from approximately 15 Canadian stroke centres. Acute ICH patients who can be treated within 6 hours of onset will undergo CT angiography using standard CT procedures. Those with a spot sign will be randomly assigned in a 1:1 ratio to a single injection of rFVIIa 80 µg/kg or placebo; patients without a spot sign will not be treated. The primary endpoint is ICH expansion within 24 hours.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
QUADRUPLE
Enrollment
50
80ug/kg IV bolus
Saline
Foothills Medical Centre
Calgary, Alberta, Canada
Walter C. Mackenzie Health Sciences Centre
Edmonton, Alberta, Canada
Vancouver General Hospital
Vancouver, British Columbia, Canada
Vancouver Island Health Authority
Victoria, British Columbia, Canada
Hamilton HSC
Hamilton, Ontario, Canada
Kingston General Hospital
Kingston, Ontario, Canada
London Health Sciences Centre
London, Ontario, Canada
Trillium Health Centre
Mississauga, Ontario, Canada
The Ottawa Hospital
Ottawa, Ontario, Canada
Toronto Western Hospital
Toronto, Ontario, Canada
...and 5 more locations
ICH size
Difference between groups in ICH size on CT scan at 24 hours post-dose, adjusted for baseline ICH size
Time frame: 24 hours
Feasibility
Percentage of sites who can meet recruitment targets of 2 patients per site per year; % patients who meet the target time of \<45 minutes from emergency department arrival to the start of the scan; % patients who meet the target time of \<60 minutes from the end of the CT angiogram to administration of study drug; Local site spot sign interpretation accuracy as judged by central adjudicator; protocol violations
Time frame: 0
Waiver of consent process evaluation/effectiveness
Waiver of consent use, acceptability, and effect on treatment times. Questionnaire will be administed to subject/LAR at 4 days and 90 days.
Time frame: 4,90 days
Acute blood pressure control
% subjects where blood pressure control was acheived, defined as achieving systolic BP \<180 mmHg within 1 hour post-randomization
Time frame: 1hr
Thromboembolic events
Incidence of myocardial infarction and ischemic stroke within 4 days; any other arterial or venous thromboembolic SAEs within 4 days
Time frame: 4 days
Mortality
90-day mortality rate
Time frame: 90 days
Unstable angina
Unstable angina w/in 4 days of treatment
Time frame: 4 days
Troponin increase
Troponin rise above upper limit of normal within 4 days (without clinical symptoms or ECG evidence of acute coronary syndrome)
Time frame: 4 days
DVT
Deep venous thrombosis (DVT) within 4 days
Time frame: 4 days
Pulmonary embolism
PE within 30 days
Time frame: 30 days
Cognition
Montreal Cognitive Assessment (MoCA) and Stroke Impact Scale at 90 days and 1 year.
Time frame: 90 days, 1 year
Disability
Proportion of subjects with modified Rankin score 5-6 (death or severe disability) at 90 days and 1 year
Time frame: 90 d, 1 year
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