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CLEAR III Monthly Broadcast
December 2011
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Agenda Enrollments and Announcements….Mark A. Macek
MISTIE Outcomes…………………………..Gayane Yenokyan Good news for Randomization!……….Natalie Ullman
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CLEAR III Recent Enrollments
November-December 2011
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Congratulations to November-December 2011 Enrollments
Dr. Sagi Harnof (PI), Yulia Wasserman, Tali Kimchi Shiri Fischler (coordinators), Chaim Sheba Medical Center 9th enrollment on (the trial's 179th enrollment)
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Congratulations to November-December 2011 Enrollments
Dr. Carsten Hobohm(PI), Rita Lachmund and Daniela Urban (coordinators), University of Leipzig 1st enrollment on (the trial's 180th enrollment)
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Congratulations to November-December 2011 Enrollments
Dr. Thomas Kerz (PI/Coordinator), University of Mainz 3rd enrollment on (the trial's 181st enrollment)
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Congratulations to November-December 2011 Enrollments
Dr. Sayona John(PI), Terry Cole (coordinator), Rush University 13th enrollment on (the trial's 182nd enrollment)
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Congratulations to November-December 2011 Enrollments
Dr. David Ledoux(PI), Oleg Rivkin(coordinator), Northshore, Long Island 4th enrollment on (the trial's 183rd enrollment)
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Congratulations to November-December 2011 Enrollments
Dr. Paul Vespa (PI), Maria Fillipou and Maria Etchepare (coordinator), UCLA 4th enrollment on (the trial's 184th enrollment)
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Congratulations to November-December 2011 Enrollments
Dr. Stephan Mayer(PI), Noeleen Ostapkovich(coordinator), Columbia 4th enrollment on (the trial's 185th enrollment)
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Congratulations to November-December 2011 Enrollments
Dr. Venkatesh Aiyagari (PI), Maureen Hillmann(coordinator), University of Illinois at Chicago 3rd enrollment on (the trial's 186th enrollment)
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Congratulations to November-December 2011 Enrollments
Dr. Robert Hoesch (PI), Julie Martinez(coordinator), University of Utah 7th enrollment on (the trial's 187th enrollment)
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Outcomes and trajectory for recovery after intracerebral hemorrhage
Presented by Gayane Yenokyan Assistant Scientist, Biostatistics Center 4/3/2019
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Presentation Plan Goal of the analysis
Stroke outcome measures included in the analyses Data Results Implications Summary and conclusions 4/3/2019
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Goals of the Analysis Main goals are:
To assess the relationships between outcomes measures at various times post stroke To evaluate variability of one measure at various levels of another To understand recovery in ICH 4/3/2019
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Data MISTIE I and II 117 MISTIE patients (with available outcomes):
80 surgical and 37 medical patients (3 ICES patients) 26 “Run-in’s” and 91 randomized 59 Stage I and 58 Stage II Follow-up visits (days post stroke): 30, 90, 180, 270, and 365 4/3/2019
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MISTIE I and II MINIMALLY INVASIVE SURGERY plus T-PA for INTRACEREBRAL HEMORRHAGE EVACUATION Study Hypothesis: Clot reduction with minimally invasive surgery plus rt-PA decreases mortality and increases good outcomes 4/3/2019
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MISTIE Trial Design Stage I N = 60 Stage II n = 60 Medical Arm
Minimally Invasive Surgery + 0.3 mg rt-PA 1.0 mg ICES Stage II n = 60 Medical Arm Image Guided Surgical Arm 3Trajectory options
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Main Characteristics of MISTIE Trial
First prospectively randomized MIS + rt-PA trial in ICH Prospectively defined, standardized surgical task Independent ICH Surgical Center Fully monitored, independent adjudication of image guided surgery 25 clinical sites
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Outcomes Included in the Analysis
Death (mRS = 6) Stroke Scales: mRS Barthel index NIHSS score SIS and its subscales 4/3/2019
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Plan for the Results Mortality and factors that affect mortality rate
Pair-wise correlations of Stroke Scales by follow-up visit Variability of SIS subscales by mRS (cut-offs of mRS) Trajectories (and summaries) of Stroke Scales over time post stroke Predicting Outcome at 180 days 4/3/2019
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Part I: Mortality Research Question: What factors predict Mortality?
4/3/2019
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Distribution of Deaths by Follow-up
Time of Death (days post stroke) 30 90 180 270 Total Alive - 86 Deaths 14 11 3 31 Missing status 120 4/3/2019
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Mortality in MISTIE I and II cohorts
Status Stage I* Stage II Total Cohort N(%) N Alive 46 (78.0) 40 (69%) 86 Died 13 (22%) 18 (31%) 31 30 6 8 14 90 5 11 180 1 2 3 270 - 365 * Includes ICES (n = 3) 4/3/2019
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Availability of Follow-up Visits, Stage I (N = 59)
Follow-up Visit (days post stroke) Number of Patients Number of Patients who died Number of Patients Lost to Follow-up or no Information 30 59 6 1 90 52 180 45 44 4/3/2019
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Availability of Follow-up Visits, Stage II (N = 58)
Follow-up Visit (days post stroke) Number of Patients Number of Patients who died Number of Patients Lost to Follow-up or no Information 30 58 8 3 90 47 5 180 34 2 10 270 22 4 365 15 - 4/3/2019
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Two Stages Can be Combined
Result of the Log-rank test: p-value = 0.507 4/3/2019
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Multivariate Analyses
Predictors of Death Covariate* Bivariate Analyses Multivariate Analyses HR (95%CI) P-value Age of onset (per 5 years) 1.2 (1.1, 1.4) 0.034 1.2 (1.0, 1.4) 0.041 ICH (per 10cc) 1.3 (1.1, 1.5) 0.003 1.2 (1.0, 1.5) 0.053 Enrollment GCS (per 1 score increment) 0.8 (0.8, 1.0) 0.019 0.9 (0.8, 1.0) 0.020 Men 2.2 (0.9, 5.4) 0.080 Cardio-vascular disease 1.9 (0.9, 3.8) 0.083 Other factors evaluated: randomization group, location, ethnicity, medical history, hypertension, diabetes, alcohol etc. * Selected at alpha = 0.1 in the bivariate analysis 4/3/2019
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II. Pair-wise Correlations of Outcome Measures by Follow-up Visit
4/3/2019
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Research Question: How do different Stroke scales correlate with each other over the course of recovery? 4/3/2019
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mRS vs. Barthel by time post stroke
Pearson Correlation Coefficients: (30, 90, and 180 days) ≥ 0.81 (p-value <0.0001) Barthel improves earlier than Rankin. Barthel measures ability, Rankin measures disability/dependence 4/3/2019
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mRS vs. SIS by time post stroke
Pearson Correlation Coefficients: (30, 90, and 180 days) ≥ 0.83 (p-value <0.0001) 4/3/2019
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mRS vs. SIS Mood Stability
Pearson Correlation Coefficients: (30, 90, and 180 days) 0.4 to 0.5 (p-value <0.0001) Mood stability improves earlier and is already pretty high at 30 days 4/3/2019
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mRS vs. SIS Social Participation
Pearson Correlation Coefficients: (30, 90, and 180 days) from 0.4 to 0.6 (p-value <0.0001) Correlation with social participation is low, but it improves dramatically. 4/3/2019
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Summary of Findings for Parts I and II
ICH volume predicts death – supports the hypothesis that getting the blood out will improve the outcomes Low linear correlation between SIS sub-scales: Mood, Emotion, Social Participation and Disability Measures at 30 days post-stroke (Barthel and SIS ADL) These correlations increase over time Data seem to support the notion of “gradual improvement”: Initial improvement of Barthel Index (at 30 days), followed by improvement in modified Rankin Score 4/3/2019
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III. Variability of SIS subscales by mRS
4/3/2019
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Variability of SIS physical sub-scales (y-axis) by mRS (x-axis) at 30 days
30-day outcomes 4/3/2019
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Variability of SIS physical sub-scales (y-axis) by mRS (x-axis) at 180 days
30-day outcomes 4/3/2019
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Variability of SIS emotion/social sub-scales (y-axis) by mRS (x-axis) 30 days
30-day outcomes Red circle indicates high variability and overlap of communication memory and emotion at mRS=3 and 4 4/3/2019
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Variability of SIS emotion/social sub-scales (y-axis) by mRS (x-axis) 180 days
30-day outcomes Red circle indicates high variability and overlap of communication memory and emotion at mRS=3 and 4 4/3/2019
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Summary of Findings (Part II)
SIS physical subscales correlate well with Rankin score There appears to be good separation between mRS 3 and 4 based on the physical subscales There is lots of variability in SIS emotion, communication, memory and social participation at mRS = 3 and 4 Social participation is affected the most by stroke; it correlates better with Rankin Social participation improves at 180 days 4/3/2019
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IV. Outcome Trajectories
4/3/2019
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Modified Rankin Score Over Time
Overall better improvement in Rankin scores in the surgical arm 4/3/2019
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SIS Physical Domain Sub-scales over Time
Functions that improve the best after surgery are Strength and Mobility 4/3/2019
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SIS Social Domain Sub-scales over Time
Memory and mood seem to improve in Surgical patients much better than in medical: Communication seem to improve earlier 4/3/2019
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Summary of Findings (Part III)
Most of functions improve over time Surgery seems to be better at improving physical domains (as measured by Barthel score, Rankin or SIS physical) and memory and mood There is quite a bit of heterogeneity in response in both treatment arms Next: look at predictors of “better response” 4/3/2019
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V. Predict Outcomes at 180 days
4/3/2019
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Strategy Rankin as the outcome Exclude deaths
Continuous Dichotomous (dependence vs. not) Exclude deaths Available data: 117 – 39 (Deaths before 180) – 3 (Deaths at 180) = 75 observations 4/3/2019
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Distribution of Rankin at 180 days
4/3/2019
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Distribution of NIHSS at 180 days
4/3/2019
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(Continuous) Rankin Score at 180
Covariate Multivariate Analyses Multivariate Analyses* beta (95%CI) P-value Surgery -0.5 (-0.9, -0.2) 0.007 -0.5 (-0.8, -0.1) 0.017 ICH (per 10cc) 0.1 (0.0, 0.2) 0.028 0.1 (-0.02, 0.2) 0.140 Age of onset (per 5 years) 0.2 (0.1, 0.3) <0.0001 0.2 (0.1, 0.2) 0.001 Enrollment GCS (per 1 score increment) -0.2 (-0.2, -0.1) Lobar Location -0.5 (-1.0, -0.1) 0.020 -0.5 (-1, -0.1) 0.027 Diabetes 0.8 (0.3, 1.2) 0.7 (0.3, 1.1) CVD 0.6 (0.2, 1.0) 0.002 0.6 (0.2, 0.9) This model explains about 50% variability in Rankin Scores * Excluding deaths 4/3/2019
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Independence at 180 (Rankin <4)
Covariate Multivariate Analyses Multivariate Analyses* OR (95%CI) P-value Surgery 3.5 (0.8, 15.5) 0.096 3.4 (0.8, 15.1) 0.108 Age of onset (per 5 years) 0.6 (0.5, 0.9) 0.010 0.7 (0.5, 0.9) 0.012 Enrollment GCS (per 1 score increment) 1.7 (1.3, 2.3) <0.0001 CVD 0.2 (0.1, 0.8) 0.019 0.022 * Excluding deaths 4/3/2019
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Question: Should one separate survival from recovery when talking about outcomes after ICH?
Answer: There seem to be evidence that predictors of survival and recovery at 180-day are different (slides 16 vs. 39 and 40) 4/3/2019
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Question: What are the most prominent predictors of survival vs
Question: What are the most prominent predictors of survival vs. predictors of better Rankin scores are 180 days? Answer: Pre-randomization ICH volume seem to be negatively correlated with survival. Other less modifiable factors of survival are age at onset, sex, and GCS at enrollment. When looking at better Rankin scores among the survivors, surgical intervention, lobar location, and absence of diabetes and CVD are associated with better outcomes. 4/3/2019
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Question: Which scales are most correlated with modified Rankin score
Question: Which scales are most correlated with modified Rankin score? Do these correlations “improve” over time? Answer: Barthel index, SIS total score and its “physical” subscales (strength, mobility, hand function and ADL) are better correlated with Rankin scores, compared to SIS emotion, mood, memory and social participation subscales. These relationships become stronger over time. 4/3/2019
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Question: Which scales demonstrate more variability in the process of recovery after ICH?
Answer: SIS emotion, mood, memory, hand function and social participation subscales 4/3/2019
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Thank you!
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Making your life easier during randomization
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The options… 2. Upload jepgs
Site Team: Enter age, gender, ICH location, IVH Graeb score, and date/time of all diagnostic and stability scans. Upload DICOMs EARLY (>2hrs before randomizing) Site Team: Enter basic demographic information & CT date/times Reading Center: we will enter everything else necessary for you to be able to randomize
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2012 CLEAR III Webinars Will host 3 per month:
3rd Thurs. of every month at 8am & 2pm EDT 4th Thurs. of every month at 9am EDT No longer held on 4th Fridays! MUST re-register for all! Visit our new website to do so
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