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Minimally Invasive Surgery Plus Rt-PA for ICH Evacuation Phase III

Minimally Invasive Surgery Plus Rt-PA for ICH Evacuation Phase III

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01827046
Acronym
MISTIE-III
Enrollment
499
Registered
2013-04-09
Start date
2013-12-30
Completion date
2018-09-30
Last updated
2019-09-27

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Intracerebral Hemorrhage

Keywords

intracerebral hemorrhage, ICH, brain hemorrhage, minimally invasive surgery, rt-PA

Brief summary

A phase III, randomized, case-controlled, open-label, 500-subject clinical trial of minimally invasive surgery plus rt-PA in the treatment of intracerebral hemorrhage (ICH).

Detailed description

Primary Objectives: Efficacy: Demonstrate that minimally invasive surgery (MIS) plus recombinant tissue plasminogen activator (rt-PA) for three days improves functional outcome by a 12% increase in the modified Rankin Scale (mRS) score 0-3 compared to medically treated subjects assessed at 365 days. Secondary Objective: Demonstrate that the end of treatment volume and percent of ICH reduction from MIS+rt-PA is related to improved functional outcome, as compared to medically treated subjects. Safety: Demonstrate that early use of MIS+rt-PA for three days is safe for the treatment of ICH relative to rates of mortality, rebleeding, and infection in the medically treated subject at 30 days.

Interventions

DRUGrt-PA

Up to 9 doses of 1.0 mg of rt-PA will be administered through the catheter that was placed directly into the intracerebral hemorrhage using minimally invasive surgery.

Sponsors

National Institute of Neurological Disorders and Stroke (NINDS)
CollaboratorNIH
Genentech, Inc.
CollaboratorINDUSTRY
Emissary International LLC
CollaboratorINDUSTRY
Johns Hopkins University
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
SINGLE (Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Spontaneous supratentorial ICH ≥ 30 mL diagnosed using radiographic imaging (computerized tomography (CT), computerized tomography angiography (CTA), etc.), with a Glasgow Coma Scale (GCS) ≤ 14 or a NIHSS ≥ 6. * Stability CT scan done at least 6 hours after diagnostic CT showing clot stability (growth \< 5 mL as measured by ABC/2 method). * Symptoms less than 24 hours prior to diagnostic CT (dCT) scan (an unknown time of onset is exclusionary). * Ability to randomize between 12 and 72 hours after dCT. * Systolic Blood Pressure (SBP) \< 180 mmHg sustained for six hours recorded closest to the time of randomization. * Historical Rankin score of 0 or 1. * Age ≥ 18 and older.

Exclusion criteria

* Infratentorial hemorrhage. * Intraventricular hemorrhage (IVH) requiring treatment for IVH-related (casting) mass effect or shift due to trapped ventricle. External ventricular drain (EVD) to treat intracranial pressure (ICP) is allowed. * Thalamic bleeds with apparent midbrain extension with third nerve palsy or dilated and non-reactive pupils. Other (supranuclear) gaze abnormalities are not exclusions. Note: Patients with a posterior fossa ICH or cerebellar hematomas are ineligible. * Irreversible impaired brain stem function (bilateral fixed, dilated pupils and extensor motor posturing), GCS ≤ 4. * Ruptured aneurysm, arteriovenous malformation (AVM), vascular anomaly, Moyamoya disease, hemorrhagic conversion of an ischemic infarct, recurrence of a recent (\< 1 year) hemorrhage diagnosed with radiographic imaging. * Patients with unstable mass or evolving intracranial compartment syndrome. * Platelet count \< 100,000; international normalized ratio (INR) \> 1.4. * Any irreversible coagulopathy or known clotting disorder. * Inability to sustain INR ≤ 1.4 using short- and long-active procoagulants (such as but not limited to NovoSeven, Fresh Frozen Plasma (FFP), and/or vitamin K). * Subjects requiring long-term anti-coagulation are excluded. Reversal of anti-coagulation is permitted for medically stable patients who can realistically tolerate the short term risk of reversal. Patient must not require Coumadin (anticoagulation) during the first 30 days, and normalized coagulation parameters must be demonstrated, monitored closely and maintained during the period of brain instrumentation. * Use of Dabigatran, Apixaban, and/or Rivaroxaban (or a similar medication from the similar medication class) prior to symptom onset. * Internal bleeding, involving retroperitoneal sites, or the gastrointestinal, genitourinary, or respiratory tracts. * Superficial or surface bleeding, observed mainly at vascular puncture and access sites (e.g., venous cutdowns, arterial punctures, etc.) or site of recent surgical intervention. * Positive urine or serum pregnancy test in pre-menopausal female subjects without a documented history of surgical sterilization. * Allergy/sensitivity to rt-PA. * Prior enrollment in the study. * Participation in a concurrent interventional medical investigation or clinical trial. Patients in observational, natural history, and/or epidemiological studies not involving an intervention are eligible. * Not expected to survive to the day 365 visit due to co-morbidities and/or are do not resuscitate (DNR)/ do not intubate (DNI) status prior to randomization. * Any concurrent serious illness that would interfere with the safety assessments including hepatic, renal, gastroenterologic, respiratory, cardiovascular, endocrinologic, immunologic, and hematologic disease. * Patients with a mechanical heart valve. Presence of bio-prosthetic valve(s) is permitted. * Known risk for embolization, including history of left heart thrombus, mitral stenosis with atrial fibrillation, acute pericarditis, or subacute bacterial endocarditis. * Any other condition that the investigator believes would pose a significant hazard to the subject if the investigational therapy were initiated. * Active drug or alcohol use or dependence that, in the opinion of the site investigator, would interfere with adherence to study requirements. * In the investigator's opinion, the patient is unstable and would benefit from a specific intervention rather than supportive care plus or minus MIS+rt-PA removal of the ICH. * Inability or unwillingness of subject or legal guardian/representative to give written informed consent.

Design outcomes

Primary

MeasureTime frameDescription
Dichotomized, Adjudicated Modified Rankin Scale Score 0-3 vs. 4-6 at 365 Days Post Ictus (Adjusted)Day 365Dichotomized, adjudicated, cross-sectional modified Rankin Scale (mRS) score 0-3 vs. 4-6 at 365 days post-ictus, adjusting for baseline (pre-randomization) variables used in covariate adaptive randomization as well as the clinically established severity variables IVH size and ICH location (lobar or deep). Ictus refers to symptom onset. The mRS is a commonly used scale for measuring the degree of disability or dependence in the daily activities of people who have suffered a stroke or other causes of neurological disability. It is scored from: 0=No symptoms at all, 1=No significant disability, 2=Slight disability, 3=Moderate disability, 4=Moderately severe disability, 5=Severe disability and 6=death. Dichotomized scores are: 0-3=No symptoms to moderate disability requiring some assistance; 4-6=Moderately severe disability requiring complete assistance to death.

Secondary

MeasureTime frameDescription
Dichotomized Extended Glasgow Outcome Scale (eGOS) Score UGR-US vs. LS-Death at 365 Days Post Ictus (Adjusted)Day 365Dichotomized, cross-sectional extended Glasgow Outcome Scale (eGOS) score upper good recovery (UGR) through upper severe disability (US) vs. lower severe disability (LS) through death at 365 days post ictus, adjusting for baseline (pre-randomization) variables used in covariate adaptive randomization as well as the clinically established severity variables IVH size and ICH location (lobar or deep). The eGOS is a commonly used scale for measuring the degree of disability or dependence in the daily activities of people who have suffered a stroke or other causes of neurological disability. It is scored as: 1=Death, 2=Vegetative state, 3=Lower severe disability, 4=Upper severe disability, 5=Lower moderate disability, 6=Upper moderate disability, 7=Lower good recovery, 8=Upper good recovery. Dichotomous variable coding is as follows: 1=codes 4-8, 0=codes 1-3.
All Cause Mortality Longitudinally From Ictus to 365 Days (Adjusted)Day 365By group comparison of mortality from ictus to 365 days adjusted for baseline severity.
Clot Removal (Amount of Residual Blood)24 hours after last doseRelationship between clot removal as an Area Under the Curve (AUC) clot-assessment that estimates the time-averaged clot volume from ictus to end of treatment (EOT i.e. 24 hours after last dose) as AUC clot exposure and functional outcome (proportion 0-3 Modified Rankin Scale (mRS)).
Patient Disposition: Home Days Over 365 Days Time From Ictus.During 365 days of follow-upBy group comparison of cumulative days at home during the 365 days post ictus.
Patient Disposition: Patient Location at 365 Days Post Ictus (i.e., Good vs. Bad Location) (Adjusted)Day 365Patient disposition: By group comparison of residential location at day 365 post ictus adjusted for baseline severity. Good locations refers to home and rehabilitation; and bad locations refers to acute care, long-term care and death.
Dichotomized, Adjudicated, Cross-sectional Modified Rankin Scale (mRS) Score 0-3 vs. 4-6 180 Days Post Ictus (Adjusted)Day 180Dichotomized, adjudicated, cross-sectional modified Rankin Scale (mRS) score 0-3 vs. 4-6 at 180 days post-ictus, adjusting for baseline (pre-randomization) variables used in covariate adaptive randomization as well as the clinically established severity variables IVH size and ICH location (lobar or deep). The mRS is a commonly used scale for measuring the degree of disability or dependence in the daily activities of people who have suffered a stroke or other causes of neurological disability. It is scored from: 0=No symptoms at all, 1=No significant disability, 2=Slight disability, 3=Moderate disability, 4=Moderately severe disability, 5=Severe disability and 6=death. Dichotomized scores are: 0-3=No symptoms to moderate disability requiring some assistance; 4-6=Moderately severe disability requiring complete assistance to death
Dichotomized Extended Glasgow Outcome Scale (eGOS) Score UGR-US vs. LS-Death at 180 Days Post Ictus (Adjusted)Day 180Dichotomized, cross-sectional extended Glasgow Outcome Scale (eGOS) score upper good recovery (UGR) through upper severe disability (US) vs. lower severe disability (LS) through death at 180 days post ictus, adjusting for baseline (pre-randomization) variables used in covariate adaptive randomization as well as the clinically established severity variables IVH size and ICH location (lobar or deep). The eGOS is a commonly used scale for measuring the degree of disability or dependence in the daily activities of people who have suffered a stroke or other causes of neurological disability. It is scored as: 1=Death, 2=Vegetative state, 3=Lower severe disability, 4=Upper severe disability, 5=Lower moderate disability, 6=Upper moderate disability, 7=Lower good recovery, 8=Upper good recovery. Dichotomous variable coding is as follows: 1=codes 4-8, 0=codes 1-3.
Type and Intensity of ICU Management: ICU DaysUp to 365 daysBy group comparison of cumulative number of days in the Intensive Care Unit (ICU) in a hospital
Type and Intensity of ICU Management: Hospital DaysUp to 365 daysBy group comparison of total number of days in the hospital
EQ-VASDay 365By group comparison of EQ-VAS at day 365 post ictus. The EuroQol Visual Analogue Scale (EQ-VAS) is a self-reported measure of health status. It is a marked scale where subjects draw a line to indicate their health, with end points of 0 (the worst health you can imagine) and 100 (the best health you can imagine).
EuroQol 5 Dimensional Scale (EQ-5D)Day 365By group comparison of EQ-5D at day 365 post ictus. The EuroQol 5 Dimensional Scale (Eq-5D) is a self-reported measure of health status. It is arranged to assess domains related to mobility, self-care, usual activities, pain/discomfort, and anxiety/depression. For each domain, codes were 1=no problems, 2=some problems, 3=extreme problems, and 9=unknown. Having a problem in at least 1 domain was coded as 1 (originally represented by 2 or 3) and no problems as 0 (originally represented by 1) .

Other

MeasureTime frameDescription
Mortality and Safety Events: First-week (Operative) MortalityDay 7Mortality and Safety events: By group comparison of mortality within the first 7 days post randomization.
Mortality and Safety Events: All Cause MortalityDay 30By group comparison of mortality from all causes within the first 30 days post randomization.
Mortality and Safety Events: Adjudicated Symptomatic Brain Bleeding Within 72 Hours After Last Dose72 hours after last doseBy group comparison of the percentage of subjects experiencing one or more adjudicated symptomatic brain bleeding events within the first 30 days post randomization.
Mortality and Safety Events: Adjudicated Bacterial Brain InfectionDay 30By group comparison of the percentage of subjects experiencing one or more adjudicated brain bacterial infection events within the first 30 days post randomization.
Mortality and Safety Events: Total Serious Adverse Events (SAE) at 30 DaysDay 30By group comparison of the total number of adjudicated serious adverse events that occurred within the first 30 days post randomization.
Mortality and Safety Events: Summary of AE and SAE by MedDRA Code and Grouped by Organ System Within the First 30 Days Post IctusDay 30By group comparison of the total number of adjudicated adverse events (AE) and serious adverse events (SAE) across all coded organ systems that occurred within the first 30 days post ictus.

Countries

Australia, Canada, China, Germany, Hungary, Israel, Spain, United Kingdom, United States

Participant flow

Recruitment details

Recruitment and randomization occurred at 78 hospitals in USA, Canada, Europe, Australia, and Asia

Participants by arm

ArmCount
MIS Plus Rt-PA Management
Subjects randomized to the MIS plus rt-PA management arm will undergo minimally invasive surgery followed by up to 9 doses of 1.0 mg of rt-PA (Activase/Alteplase/CathFlo) for intracerebral hemorrhage clot resolution. rt-PA: Up to 9 doses of 1.0 mg of rt-PA will be administered through the catheter that was placed directly into the intracerebral hemorrhage using minimally invasive surgery.
250
Medical Management
Subjects randomized to medical management will receive the standard medical therapies for the treatment of intracerebral hemorrhage, which includes ICU care only and no planned surgical intervention.
249
Total499

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyLost to Follow-up15
Overall StudyWithdrawal by Subject04

Baseline characteristics

CharacteristicMedical ManagementTotalMIS Plus Rt-PA Management
Age, Continuous62 years62 years62 years
Antiplatelet therapy77 Participants144 Participants67 Participants
Blood pressure at presentation
Diastolic BP (mm Hg)
98 mm Hg98 mm Hg99 mm Hg
Blood pressure at presentation
Systolic BP (mm Hg)
176 mm Hg177 mm Hg177 mm Hg
Blood pressure at randomization
Diastolic BP (mm Hg)
69 mm Hg69 mm Hg70 mm Hg
Blood pressure at randomization
Systolic BP (mm Hg)
138 mm Hg138 mm Hg138 mm Hg
Clot location
Deep
144 Participants307 Participants163 Participants
Clot location
Lobar
105 Participants192 Participants87 Participants
Cocaine use9 Participants20 Participants11 Participants
Diabetes67 Participants139 Participants72 Participants
Diagnostic CT at presentation - IntraCerebral Hemorrhage (ICH) volume (mL)41.5 mL41.8 mL42.7 mL
Diagnostic CT at presentation - IntraVentricular Hemorrhage (IVH) volume (mL)0 mL0 mL0 mL
Ethnicity (NIH/OMB)
Hispanic or Latino
34 Participants68 Participants34 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
215 Participants431 Participants216 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants
GCS score at randomization
13-15
78 Participants153 Participants75 Participants
GCS score at randomization
3-8
63 Participants127 Participants64 Participants
GCS score at randomization
9-12
108 Participants219 Participants111 Participants
Hormone replacement therapy3 Participants4 Participants1 Participants
Hyperlipidaemia medication compliant93 Participants189 Participants96 Participants
Hypertension240 Participants481 Participants241 Participants
mRS score before stroke
0
233 Participants463 Participants230 Participants
mRS score before stroke
1
16 Participants36 Participants20 Participants
NIHSS score at randomization19 Units on a scale19 Units on a scale19 Units on a scale
On anticoagulants10 Participants34 Participants24 Participants
Other cardiovascular disease34 Participants72 Participants38 Participants
Race (NIH/OMB)
American Indian or Alaska Native
1 Participants2 Participants1 Participants
Race (NIH/OMB)
Asian
18 Participants30 Participants12 Participants
Race (NIH/OMB)
Black or African American
41 Participants87 Participants46 Participants
Race (NIH/OMB)
More than one race
2 Participants2 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
3 Participants3 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants1 Participants1 Participants
Race (NIH/OMB)
White
184 Participants374 Participants190 Participants
Region of Enrollment
Australia
2 participants4 participants2 participants
Region of Enrollment
Canada
4 participants7 participants3 participants
Region of Enrollment
China
5 participants10 participants5 participants
Region of Enrollment
Europe
44 participants85 participants41 participants
Region of Enrollment
United States
194 participants393 participants199 participants
Sex: Female, Male
Female
103 Participants194 Participants91 Participants
Sex: Female, Male
Male
146 Participants305 Participants159 Participants
Stability CT(last CT before randomization) IntraCerebral Hemorrhage (ICH) volume (mL)45.3 mL45.6 mL45.8 mL
Stability CT(last CT before randomization) IntraVentricular Hemorrhage (IVH) volume (mL)0.4 mL0.4 mL0.3 mL
Time from stroke to diagnostic CT (h)1.9 Hours2.0 Hours2.2 Hours
Time from stroke to stability CT (h)36.3 Hours36.3 Hours36.4 Hours
Tobacco use39 Participants89 Participants50 Participants
Ventilated at randomization102 Participants209 Participants107 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
48 / 25062 / 249
other
Total, other adverse events
205 / 250169 / 249
serious
Total, serious adverse events
75 / 25084 / 249

Outcome results

Primary

Dichotomized, Adjudicated Modified Rankin Scale Score 0-3 vs. 4-6 at 365 Days Post Ictus (Adjusted)

Dichotomized, adjudicated, cross-sectional modified Rankin Scale (mRS) score 0-3 vs. 4-6 at 365 days post-ictus, adjusting for baseline (pre-randomization) variables used in covariate adaptive randomization as well as the clinically established severity variables IVH size and ICH location (lobar or deep). Ictus refers to symptom onset. The mRS is a commonly used scale for measuring the degree of disability or dependence in the daily activities of people who have suffered a stroke or other causes of neurological disability. It is scored from: 0=No symptoms at all, 1=No significant disability, 2=Slight disability, 3=Moderate disability, 4=Moderately severe disability, 5=Severe disability and 6=death. Dichotomized scores are: 0-3=No symptoms to moderate disability requiring some assistance; 4-6=Moderately severe disability requiring complete assistance to death.

Time frame: Day 365

Population: Includes participants with mRS scores available at day 365. Number and proportions reported refer to number of participants and proportions with Modified Rankin Score 0-3

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
MIS Plus Rt-PA ManagementDichotomized, Adjudicated Modified Rankin Scale Score 0-3 vs. 4-6 at 365 Days Post Ictus (Adjusted)mRS 0-3110 Participants
MIS Plus Rt-PA ManagementDichotomized, Adjudicated Modified Rankin Scale Score 0-3 vs. 4-6 at 365 Days Post Ictus (Adjusted)mRS 4-6139 Participants
Medical ManagementDichotomized, Adjudicated Modified Rankin Scale Score 0-3 vs. 4-6 at 365 Days Post Ictus (Adjusted)mRS 0-3100 Participants
Medical ManagementDichotomized, Adjudicated Modified Rankin Scale Score 0-3 vs. 4-6 at 365 Days Post Ictus (Adjusted)mRS 4-6140 Participants
p-value: 0.7395% CI: [-6.8, 10.7]Chi-squared
Comparison: Adjusted for age, GCS, stability ICH volume, stability IVH volume, ICH deep locationp-value: 0.3395% CI: [-4, 12]Multivariate logit model
Secondary

All Cause Mortality Longitudinally From Ictus to 365 Days (Adjusted)

By group comparison of mortality from ictus to 365 days adjusted for baseline severity.

Time frame: Day 365

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
MIS Plus Rt-PA ManagementAll Cause Mortality Longitudinally From Ictus to 365 Days (Adjusted)48 Participants
Medical ManagementAll Cause Mortality Longitudinally From Ictus to 365 Days (Adjusted)62 Participants
p-value: 0.08Log Rank
p-value: 0.03795% CI: [0.45, 0.98]Adjusted Cox proportional Hazard
Secondary

Clot Removal (Amount of Residual Blood)

Relationship between clot removal as an Area Under the Curve (AUC) clot-assessment that estimates the time-averaged clot volume from ictus to end of treatment (EOT i.e. 24 hours after last dose) as AUC clot exposure and functional outcome (proportion 0-3 Modified Rankin Scale (mRS)).

Time frame: 24 hours after last dose

Population: Includes patients who survived through the dosing period

ArmMeasureGroupValue (MEAN)Dispersion
MIS Plus Rt-PA ManagementClot Removal (Amount of Residual Blood)mRS 0-32.69 10mL x daysStandard Deviation 1.11
MIS Plus Rt-PA ManagementClot Removal (Amount of Residual Blood)mRS 4-63.32 10mL x daysStandard Deviation 1.33
Medical ManagementClot Removal (Amount of Residual Blood)mRS 0-34.11 10mL x daysStandard Deviation 1.35
Medical ManagementClot Removal (Amount of Residual Blood)mRS 4-65.26 10mL x daysStandard Deviation 1.82
p-value: <0.00195% CI: [0.62, 0.8]Logit model
p-value: <0.00195% CI: [0.59, 0.78]Multivariate logit model
Secondary

Dichotomized, Adjudicated, Cross-sectional Modified Rankin Scale (mRS) Score 0-3 vs. 4-6 180 Days Post Ictus (Adjusted)

Dichotomized, adjudicated, cross-sectional modified Rankin Scale (mRS) score 0-3 vs. 4-6 at 180 days post-ictus, adjusting for baseline (pre-randomization) variables used in covariate adaptive randomization as well as the clinically established severity variables IVH size and ICH location (lobar or deep). The mRS is a commonly used scale for measuring the degree of disability or dependence in the daily activities of people who have suffered a stroke or other causes of neurological disability. It is scored from: 0=No symptoms at all, 1=No significant disability, 2=Slight disability, 3=Moderate disability, 4=Moderately severe disability, 5=Severe disability and 6=death. Dichotomized scores are: 0-3=No symptoms to moderate disability requiring some assistance; 4-6=Moderately severe disability requiring complete assistance to death

Time frame: Day 180

Population: Includes patients who were not lost to followup at day 180

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
MIS Plus Rt-PA ManagementDichotomized, Adjudicated, Cross-sectional Modified Rankin Scale (mRS) Score 0-3 vs. 4-6 180 Days Post Ictus (Adjusted)mRS 0-399 Participants
MIS Plus Rt-PA ManagementDichotomized, Adjudicated, Cross-sectional Modified Rankin Scale (mRS) Score 0-3 vs. 4-6 180 Days Post Ictus (Adjusted)mRS 4-6151 Participants
Medical ManagementDichotomized, Adjudicated, Cross-sectional Modified Rankin Scale (mRS) Score 0-3 vs. 4-6 180 Days Post Ictus (Adjusted)mRS 0-393 Participants
Medical ManagementDichotomized, Adjudicated, Cross-sectional Modified Rankin Scale (mRS) Score 0-3 vs. 4-6 180 Days Post Ictus (Adjusted)mRS 4-6150 Participants
p-value: 0.7695% CI: [-0.1, 0.07]Chi-squared
p-value: 0.3195% CI: [0.81, 1.94]Multivariate logit model
Secondary

Dichotomized Extended Glasgow Outcome Scale (eGOS) Score UGR-US vs. LS-Death at 180 Days Post Ictus (Adjusted)

Dichotomized, cross-sectional extended Glasgow Outcome Scale (eGOS) score upper good recovery (UGR) through upper severe disability (US) vs. lower severe disability (LS) through death at 180 days post ictus, adjusting for baseline (pre-randomization) variables used in covariate adaptive randomization as well as the clinically established severity variables IVH size and ICH location (lobar or deep). The eGOS is a commonly used scale for measuring the degree of disability or dependence in the daily activities of people who have suffered a stroke or other causes of neurological disability. It is scored as: 1=Death, 2=Vegetative state, 3=Lower severe disability, 4=Upper severe disability, 5=Lower moderate disability, 6=Upper moderate disability, 7=Lower good recovery, 8=Upper good recovery. Dichotomous variable coding is as follows: 1=codes 4-8, 0=codes 1-3.

Time frame: Day 180

Population: Patients were included if they were not lost to followup at day 180

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
MIS Plus Rt-PA ManagementDichotomized Extended Glasgow Outcome Scale (eGOS) Score UGR-US vs. LS-Death at 180 Days Post Ictus (Adjusted)eGOS UGR-US (4-8)81 Participants
MIS Plus Rt-PA ManagementDichotomized Extended Glasgow Outcome Scale (eGOS) Score UGR-US vs. LS-Death at 180 Days Post Ictus (Adjusted)eGOS LS-Death (1-3)169 Participants
Medical ManagementDichotomized Extended Glasgow Outcome Scale (eGOS) Score UGR-US vs. LS-Death at 180 Days Post Ictus (Adjusted)eGOS UGR-US (4-8)76 Participants
Medical ManagementDichotomized Extended Glasgow Outcome Scale (eGOS) Score UGR-US vs. LS-Death at 180 Days Post Ictus (Adjusted)eGOS LS-Death (1-3)167 Participants
p-value: 0.7995% CI: [-0.07, 0.09]Chi-squared
p-value: 0.3595% CI: [0.79, 1.97]Multivariate logit model
Secondary

Dichotomized Extended Glasgow Outcome Scale (eGOS) Score UGR-US vs. LS-Death at 365 Days Post Ictus (Adjusted)

Dichotomized, cross-sectional extended Glasgow Outcome Scale (eGOS) score upper good recovery (UGR) through upper severe disability (US) vs. lower severe disability (LS) through death at 365 days post ictus, adjusting for baseline (pre-randomization) variables used in covariate adaptive randomization as well as the clinically established severity variables IVH size and ICH location (lobar or deep). The eGOS is a commonly used scale for measuring the degree of disability or dependence in the daily activities of people who have suffered a stroke or other causes of neurological disability. It is scored as: 1=Death, 2=Vegetative state, 3=Lower severe disability, 4=Upper severe disability, 5=Lower moderate disability, 6=Upper moderate disability, 7=Lower good recovery, 8=Upper good recovery. Dichotomous variable coding is as follows: 1=codes 4-8, 0=codes 1-3.

Time frame: Day 365

Population: Those with non-missing mRS scores at 365 days post ictus

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
MIS Plus Rt-PA ManagementDichotomized Extended Glasgow Outcome Scale (eGOS) Score UGR-US vs. LS-Death at 365 Days Post Ictus (Adjusted)eGOS UGR-US (4-8)94 Participants
MIS Plus Rt-PA ManagementDichotomized Extended Glasgow Outcome Scale (eGOS) Score UGR-US vs. LS-Death at 365 Days Post Ictus (Adjusted)eGOS LS-Death (1-3)150 Participants
Medical ManagementDichotomized Extended Glasgow Outcome Scale (eGOS) Score UGR-US vs. LS-Death at 365 Days Post Ictus (Adjusted)eGOS UGR-US (4-8)84 Participants
Medical ManagementDichotomized Extended Glasgow Outcome Scale (eGOS) Score UGR-US vs. LS-Death at 365 Days Post Ictus (Adjusted)eGOS LS-Death (1-3)150 Participants
p-value: 0.5595% CI: [-0.06, 0.11]Chi-squared
p-value: 0.2795% CI: [0.82, 1.97]Multivariate logit model
Secondary

EQ-VAS

By group comparison of EQ-VAS at day 365 post ictus. The EuroQol Visual Analogue Scale (EQ-VAS) is a self-reported measure of health status. It is a marked scale where subjects draw a line to indicate their health, with end points of 0 (the worst health you can imagine) and 100 (the best health you can imagine).

Time frame: Day 365

Population: Includes patients who survived or were not lost to followup through 365 days

ArmMeasureValue (MEDIAN)
MIS Plus Rt-PA ManagementEQ-VAS70 score on a scale
Medical ManagementEQ-VAS70 score on a scale
p-value: 0.66Wilcoxon (Mann-Whitney)
Secondary

EuroQol 5 Dimensional Scale (EQ-5D)

By group comparison of EQ-5D at day 365 post ictus. The EuroQol 5 Dimensional Scale (Eq-5D) is a self-reported measure of health status. It is arranged to assess domains related to mobility, self-care, usual activities, pain/discomfort, and anxiety/depression. For each domain, codes were 1=no problems, 2=some problems, 3=extreme problems, and 9=unknown. Having a problem in at least 1 domain was coded as 1 (originally represented by 2 or 3) and no problems as 0 (originally represented by 1) .

Time frame: Day 365

Population: Patients were included if they survived or were not lost to followup through 365 days

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
MIS Plus Rt-PA ManagementEuroQol 5 Dimensional Scale (EQ-5D)Any problem176 Participants
MIS Plus Rt-PA ManagementEuroQol 5 Dimensional Scale (EQ-5D)No problem16 Participants
Medical ManagementEuroQol 5 Dimensional Scale (EQ-5D)Any problem155 Participants
Medical ManagementEuroQol 5 Dimensional Scale (EQ-5D)No problem15 Participants
p-value: 0.87Chi-squared
Secondary

Patient Disposition: Home Days Over 365 Days Time From Ictus.

By group comparison of cumulative days at home during the 365 days post ictus.

Time frame: During 365 days of follow-up

Population: Includes only patients with cumulative home days at any time during the 365 days of follow-up.

ArmMeasureValue (MEDIAN)
MIS Plus Rt-PA ManagementPatient Disposition: Home Days Over 365 Days Time From Ictus.306 Days
Medical ManagementPatient Disposition: Home Days Over 365 Days Time From Ictus.300 Days
p-value: 0.78Wilcoxon (Mann-Whitney)
Secondary

Patient Disposition: Patient Location at 365 Days Post Ictus (i.e., Good vs. Bad Location) (Adjusted)

Patient disposition: By group comparison of residential location at day 365 post ictus adjusted for baseline severity. Good locations refers to home and rehabilitation; and bad locations refers to acute care, long-term care and death.

Time frame: Day 365

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
MIS Plus Rt-PA ManagementPatient Disposition: Patient Location at 365 Days Post Ictus (i.e., Good vs. Bad Location) (Adjusted)Good Location163 Participants
MIS Plus Rt-PA ManagementPatient Disposition: Patient Location at 365 Days Post Ictus (i.e., Good vs. Bad Location) (Adjusted)Bad location87 Participants
Medical ManagementPatient Disposition: Patient Location at 365 Days Post Ictus (i.e., Good vs. Bad Location) (Adjusted)Good Location151 Participants
Medical ManagementPatient Disposition: Patient Location at 365 Days Post Ictus (i.e., Good vs. Bad Location) (Adjusted)Bad location98 Participants
p-value: 0.3495% CI: [-0.04, 0.11]Chi-squared
Secondary

Type and Intensity of ICU Management: Hospital Days

By group comparison of total number of days in the hospital

Time frame: Up to 365 days

ArmMeasureValue (MEDIAN)
MIS Plus Rt-PA ManagementType and Intensity of ICU Management: Hospital Days17 Days
Medical ManagementType and Intensity of ICU Management: Hospital Days17 Days
p-value: 0.75Median test
Secondary

Type and Intensity of ICU Management: ICU Days

By group comparison of cumulative number of days in the Intensive Care Unit (ICU) in a hospital

Time frame: Up to 365 days

Population: Includes patients with cumulative ICU days during the 365 days of follow-up

ArmMeasureValue (MEDIAN)
MIS Plus Rt-PA ManagementType and Intensity of ICU Management: ICU Days10 Days
Medical ManagementType and Intensity of ICU Management: ICU Days10 Days
p-value: 0.46Median test
Other Pre-specified

Mortality and Safety Events: Adjudicated Bacterial Brain Infection

By group comparison of the percentage of subjects experiencing one or more adjudicated brain bacterial infection events within the first 30 days post randomization.

Time frame: Day 30

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
MIS Plus Rt-PA ManagementMortality and Safety Events: Adjudicated Bacterial Brain Infection2 Participants
Medical ManagementMortality and Safety Events: Adjudicated Bacterial Brain Infection0 Participants
p-value: 0.16Chi-squared
Other Pre-specified

Mortality and Safety Events: Adjudicated Symptomatic Brain Bleeding Within 72 Hours After Last Dose

By group comparison of the percentage of subjects experiencing one or more adjudicated symptomatic brain bleeding events within the first 30 days post randomization.

Time frame: 72 hours after last dose

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
MIS Plus Rt-PA ManagementMortality and Safety Events: Adjudicated Symptomatic Brain Bleeding Within 72 Hours After Last Dose6 Participants
Medical ManagementMortality and Safety Events: Adjudicated Symptomatic Brain Bleeding Within 72 Hours After Last Dose3 Participants
p-value: 0.32Chi-squared
Other Pre-specified

Mortality and Safety Events: All Cause Mortality

By group comparison of mortality from all causes within the first 30 days post randomization.

Time frame: Day 30

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
MIS Plus Rt-PA ManagementMortality and Safety Events: All Cause Mortality23 Participants
Medical ManagementMortality and Safety Events: All Cause Mortality37 Participants
p-value: 0.05Chi-squared
Other Pre-specified

Mortality and Safety Events: First-week (Operative) Mortality

Mortality and Safety events: By group comparison of mortality within the first 7 days post randomization.

Time frame: Day 7

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
MIS Plus Rt-PA ManagementMortality and Safety Events: First-week (Operative) Mortality2 Participants
Medical ManagementMortality and Safety Events: First-week (Operative) Mortality10 Participants
p-value: 0.02Chi-squared
Other Pre-specified

Mortality and Safety Events: Summary of AE and SAE by MedDRA Code and Grouped by Organ System Within the First 30 Days Post Ictus

By group comparison of the total number of adjudicated adverse events (AE) and serious adverse events (SAE) across all coded organ systems that occurred within the first 30 days post ictus.

Time frame: Day 30

ArmMeasureGroupValue (NUMBER)
MIS Plus Rt-PA ManagementMortality and Safety Events: Summary of AE and SAE by MedDRA Code and Grouped by Organ System Within the First 30 Days Post IctusSerious Adverse Events123 Number of events
MIS Plus Rt-PA ManagementMortality and Safety Events: Summary of AE and SAE by MedDRA Code and Grouped by Organ System Within the First 30 Days Post IctusAdverse Events477 Number of events
Medical ManagementMortality and Safety Events: Summary of AE and SAE by MedDRA Code and Grouped by Organ System Within the First 30 Days Post IctusSerious Adverse Events136 Number of events
Medical ManagementMortality and Safety Events: Summary of AE and SAE by MedDRA Code and Grouped by Organ System Within the First 30 Days Post IctusAdverse Events378 Number of events
Other Pre-specified

Mortality and Safety Events: Total Serious Adverse Events (SAE) at 30 Days

By group comparison of the total number of adjudicated serious adverse events that occurred within the first 30 days post randomization.

Time frame: Day 30

ArmMeasureValue (NUMBER)
MIS Plus Rt-PA ManagementMortality and Safety Events: Total Serious Adverse Events (SAE) at 30 Days123 Number of events
Medical ManagementMortality and Safety Events: Total Serious Adverse Events (SAE) at 30 Days136 Number of events
p-value: 0.01Chi-squared

Source: ClinicalTrials.gov · Data processed: Mar 4, 2026