The modified Rankin Scale (mRS) runs from 0-6 running from perfect health without symptoms to death. 0 - No symptoms at all. 1 - No significant disability. Able to carry out all usual duties and activities. 2 - Slight disability. Unable to carry out all previous activities but able to look after own affairs without assistance. 3 - Moderate disability. Requires some help, but able to walk unassisted. 4 - Moderately severe disability. Unable to walk unassisted and unable to attend to own bodily needs without assistance. 5 - Severe disability. Bedridden, incontinent, and requires constant nursing care and attention. 6 - Dead. Persons with a Rankin of 0-2 are considered functionally independent.

The primary analysis was conducted according to intention to treat. All subjects were analyzed in the treatment group to which they were randomized. Subjects with missing mRS (n=9 in group two; n=4 in group one) or mRS assessed <60 days or >120 days post-randomization (n=10 in group two; n=4 in group one) are assigned an unfavorable outcome(mRS >2)

The intent-to-treat analysis includes all subjects who were randomized, and each subject analyzed according to the treatment group to which they were randomly assigned. Subjects who ended the study prior to 90 days post- randomization for a reason other than death (LTFU etc) (n=8 in group two; n=2 in group one) are assumed to be alive

Symptomatic Intracranial Hemorrhage- Symptomatic ICH is defined as an intracranial hemorrhage temporally related to a decline in neurological status as well as new or worsening neurologic symptoms in the judgment of the clinical investigator and which may warrant medical intervention. These events are identified via Adverse Event CRF submitted by the site

The intent-to-treat analysis sample includes all subjects who are randomized, and each subject is analyzed according to the treatment group to which they were randomly assigned.

a dense intracerebral hematoma involving more than 30% of the infarcted area with substantial space-occupying effect or any hemorrhagic area outside the infarcted area, determined via central read of the submitted CT scans.

Subjects were excluded if a post-baseline CT scan was not obtained within 30 hours of randomization (i.e., participants who died, had care withdrawn at the request of the family, or underwent imaging after the 30-hour window).

Asymptomatic intracranial hemorrhage is defined as an intracranial hemorrhage without evidence of decline in neurological status or new or worsening neurologic symptoms in the judgment of the clinical investigator. These events are identified via Adverse Event CRF submitted by the site.

The intent-to-treat analysis sample includes all subjects who are randomized, and each subject is analyzed according to the treatment group to which they were randomly assigned.

The National Institutes of Health Stroke Scale (NIHSS), a serial measure of neurologic deficit, is a 42-point scale that >> quantifies neurologic deficits in 11 categories, with 0 indicating normal function without neurologic deficit and higher

>> scores indicating greater severity of deficit.

The intent-to-treat analysis sample includes all subjects who are randomized, and each subject is analyzed according to the treatment group to which they were randomly assigned. Subjects with missing NIHSS and NIHSS measured <18 hours or >30 hours post-randomization are assigned an unfavorable outcome (NIHSS score>1).

The National Institutes of Health Stroke Scale (NIHSS), a serial measure of neurologic deficit, is a 42-point scale that quantifies neurologic deficits in 11 categories, with 0 indicating normal function without neurologic deficit and higher scores indicating greater severity of deficit.

The intent-to-treat analysis sample includes all subjects who are randomized, and each subject is analyzed according to the treatment group to which they were randomly assigned. Subjects with missing NIHSS and NIHSS measured <60 days or >120 days post-randomization are assigned an unfavorable outcome (NIHSS score>1).

The Barthel Index (BI)is an ordinal scale used to measure a subject's performance in activities of daily living (ADL) in ten variables- feeding, transfer (bed to chair), grooming, toilet use, bathing, mobility on a level surface, stair use, dressing, bowels and bladder. It is an assessment of independence in ADL and is scored in increments of 5 points. The lowest possible score on the index is 0 which implies total dependence on others for ADL and the highest total score is 100 which indicate full independent in ADL. A higher score is associated with a greater likelihood of being able to live at home with a degree of independence.

The intent-to-treat analysis sample includes all subjects who are randomized, and each subject is analyzed according to the treatment group to which they were randomly assigned. Subjects with missing BI and BI measured <60 days or >120 days post-randomization are assigned an unfavorable outcome (BI 0-90).

The Trail Making Test is a neuropsychological test of visual attention and task switching that is thought to be sensitive to the presence of cerebral dysfunction. It is a timed test consisting of two parts where the subject is asked to draw a "trail" made by connecting numbers in sequential order (part A) and then in part B the combination of numbers and letters. Scoring is calculated separately for Parts A and B but both scores are provided as the minutes and seconds it takes for the subject to complete each part. Normally, the entire test (A and B) can be completed in 5 to 10 minutes.

Participants were excluded if the Trail Making Test was not assessed or if they failed to complete Part A.

The Trail Making Test is a neuropsychological test of visual attention and task switching that is thought to be sensitive to the presence of cerebral dysfunction. It is a timed test consisting of two parts where the subject is asked to draw a "trail" made by connecting numbers in sequential order (part A) and then in part B the combination of numbers and letters. Scoring is calculated separately for Parts A and B but both scores are provided as the minutes and seconds it takes for the subject to complete each part. Normally, the entire test (A and B) can be completed in 5 to 10 minutes.

Participants were excluded if the Trail Making Test was not assessed or if they failed to complete Part B.

The modified Rankin Scale (mRS) runs from 0-6 running from perfect health without symptoms to death. 0 - No symptoms at all. 1 - No significant disability. Able to carry out all usual duties and activities. 2 - Slight disability. Unable to carry out all previous activities but able to look after own affairs without assistance. 3 - Moderate disability. Requires some help, but able to walk unassisted. 4 - Moderately severe disability. Unable to walk unassisted and unable to attend to own bodily needs without assistance. 5 - Severe disability. Bedridden, incontinent, and requires constant nursing care and attention. 6 - Dead. Persons with a Rankin of 0-2 are considered functionally independent.

The intent-to-treat analysis sample includes all subjects who are randomized, and each subject is analyzed according to the treatment group to which they were randomly assigned. Subjects with missing mRS and mRS measured <150 days or >210 days post-randomization are assigned an unfavorable outcome (mRS>2).

The modified Rankin Scale (mRS) runs from 0-6 running from perfect health without symptoms to death. 0 - No symptoms at all. 1 - No significant disability. Able to carry out all usual duties and activities. 2 - Slight disability. Unable to carry out all previous activities but able to look after own affairs without assistance. 3 - Moderate disability. Requires some help, but able to walk unassisted. 4 - Moderately severe disability. Unable to walk unassisted and unable to attend to own bodily needs without assistance. 5 - Severe disability. Bedridden, incontinent, and requires constant nursing care and attention. 6 - Dead. Persons with a Rankin of 0-2 are considered functionally independent.

The intent-to-treat analysis sample includes all subjects who are randomized, and each subject is analyzed according to the treatment group to which they were randomly assigned. Subjects with missing mRS and mRS measured <240 days or >300 days post-randomization are assigned an unfavorable outcome (mRS>2).

The modified Rankin Scale (mRS) runs from 0-6 running from perfect health without symptoms to death. 0 - No symptoms at all. 1 - No significant disability. Able to carry out all usual duties and activities. 2 - Slight disability. Unable to carry out all previous activities but able to look after own affairs without assistance. 3 - Moderate disability. Requires some help, but able to walk unassisted. 4 - Moderately severe disability. Unable to walk unassisted and unable to attend to own bodily needs without assistance. 5 - Severe disability. Bedridden, incontinent, and requires constant nursing care and attention. 6 - Dead. Persons with a Rankin of 0-2 are considered functionally independent.

The intent-to-treat analysis sample includes all subjects who are randomized, and each subject is analyzed according to the treatment group to which they were randomly assigned. Subjects with missing mRS and mRS measured <330 days or >390 days post-randomization are assigned an unfavorable outcome (mRS>2).