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The PLATINUM DIVERSITY Study Everolimus-eluting Stent Implantation

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1 The PLATINUM DIVERSITY Study Everolimus-eluting Stent Implantation
Outcomes in Women and Minorities Compared with White Men One Year After Everolimus-eluting Stent Implantation Good morning. On behalf of the PLATINUM DIVERSITY investigators, it is my pleasure and honor to present the initial results of the PLATINUM DIVERSITY study. Wayne Batchelor, M.D. and Roxana Mehran, M.D. on behalf of the PLATINUM DIVERSITY investigators

2 Financial Disclosures
Within the past 12 months, I or my spouse/partner have had a financial interest/arrangement or affiliation with the organization(s) listed below. Affiliation/Financial Relationship Company Grant/Research Support Consulting Fees/Honoraria Boston Scientific Abbott, Medtronic

3 Diversity in the U.S. Population
Minorities expected to represent over half (52%) of the U.S. population by 2050 NOTE: Hispanics may be of any race U.S. Census Bureau, 2009 National Projections supplement to the 2008 National Projections, August 14, 2008

4 Disparities in Clinical Practice and Research
Whites account for 64% of population but 85-90% of PCI volume and clinical trial enrollment US Population 2010* BSC ION, Libertē and PE Plus Studies**: Pooled Patient Demographics Composition(%) Registry US 0.6 6 0.1 0.2 0.3 0.9 0.4 5 2.5 16 5.0 13 87 72 US PCI Procedures 2012* The data garnered from clinical research trials form the basis for evaluating the safety and efficacy of medical devices. However, despite major efforts from the US FDA and NIH, enrollment of women and minorities in cardiovascular clinical trials remains poor. N=7987 *MedPar 2012, 2013 Master Hospital file & US 2010 Census **Data supplied by Dr. P. Underwood, BSC

5 PURPOSE Construct a novel study design that would specifically address the diversity gap Determine if there are significant differences in 1 year clinical outcomes between women and minorities compared with white men in the era of second generation DES To characterize and evaluate the impact of social/behavioral/economic determinants of health in women and minorities

6 PLATINUM DIVERSITY STUDY DESIGN
Multicenter, single-arm, prospective “enriched” cohort study 52 U.S. sites enrolling women and minorities Pooling of data with PROMUS ELEMENT PAS f (I) PLATINUM DIVERSITY COHORT (n=1,501) Inclusion criteria Patients received at least 1 Promus PREMIER stent Self-identified as ≥1 of the following: - Female - Black, of African heritage - Hispanic/Latino - American Indian/Alaskan Native (II) PROMUS ELEMENT PLUS PAS COHORT (n=2,687)* prospective, open-label, multicenter, all-comers observational study designed to examine 1 yr outcomes with PROMUS Element Plus stent *Kandzari et al Am J Cardiol. 2016

7 STUDY DESIGN: STATISTICS Minorities vs White men
1° Endpoint: Death/MI/TVR at 12 months Primary Analyses Women vs White men Minorities vs White men Expected rates: White men = 7.3% (n=1628 PE Plus PAS) Women = 10.1% (pooled PE Plus PAS (n=806) & PLATINUM Diversity) 2-sided α = 5% Power = ~0.80 Expected attrition = 5% n=1000 (Women in PLATINUM Diversity) Expected rates: White men = 7.3% (n=1628 PE Plus PAS) Minority = 10.6 % (pooled PE Plus PAS (N=284) & PLATINUM Diversity) 2-sided α = 5% Power = ~0.80 Expected attrition = 5% n=700 (Minority in PLATINUM Diversity)

8 MI (STEMI and NonSTEMI) TVR Death/MI Definite/Probable ST (ARC)
SECONDARY ENDPOINTS Death MI (STEMI and NonSTEMI) TVR Death/MI Definite/Probable ST (ARC) Definitions for above are as reported in the following: One-Year Outcomes in "Real-World" Patients Treated With a Thin-Strut, Platinum-Chromium, Everolimus-Eluting Stent (from the PROMUS Element Plus US Post-Approval Study [PE-Plus PAS]). Kandzari et al. Am J Cardiol. 2016

9 STUDY DESIGN Total Patients N=4,188 Platinum DIVERSITY N=1,501
PE Plus PAS N=2,687 Women N=1,863 White Men N=1,635 Minority N=1,059 12-month Follow-up 94% (N=1,755) 12-month Follow-up 95% (N=1,556) 12-month Follow-up 93% (N=982)

10 STUDY COMMITTEES Principal Investigators Roxana Mehran Wayne Batchelor
Mount Sinai Medical Center Wayne Batchelor Tallahassee Memorial Hospital Joseph Kannam (chair) Germano DiSciascio Claude Hanet Goran Stankovic Boston Scientific Corporation Lisa Currier, Project Manager Project Management, Statistics PRA International Colleen Mullenix, Project Manager Monitoring, Data Management, Safety, Statistics Independent Clinical Events Committee Study Sponsor CRO

11 PLATINUM DIVERSITY TOP SITES
Study Principal Investigators Roxana Mehran (81) Mount Sinai Medical Center Wayne Batchelor (48) Tallahassee Memorial Hospital Top Enrolling Centers Principal Investigators Scott Davis (101) Arkansas Cardiology Roger Hill (38) St Bernards Heart and Vascular Luis Tami (96) Research Physicians Network Alliance Steven Hearne (36) Delmarva Heart Research Foundation John Wang (71) MedStar Union Memorial Hospital Vince Vismara (35) Palmetto Health Islam Othman (69) NC Heart and Vascular Research Jerrold Grodin (34) VA North Texas Health Care System Osvaldo Gigliotti (65) Seton Heart Institute Jerome E Williams (34) Novant Health Heart and Vascular Institute Amir Haghighat (47) Cardiovascular Institute of Northwest Florida Robert Pyo (33) Montefiore Medical Center Sarabjeet Singh (46) Central Cardiology Medical Clinic Elie Gharib (32) CAMC Clinical Trials Center Mario Lopez (43) Charlotte Heart and Vascular Institute Hosbedar Tamboli (31) Bay Area Cardiology Gregory Giugliano (40) Baystate Medical Center Zafir Hawa (31) North Kansas City Hospital Phillip Horwitz (39) University of Iowa Hospitals and Clinics Tim Shapiro (30) Lankenau Medical Center Sandeep Nathan (38) University of Chicago Medical Center George Kichura (29) St. Louis Heart and Vascular

12 6 months ahead of schedule
STUDY ENROLLMENT Enrollment complete 6 months ahead of schedule 1,501 Patients at 52 sites No. Patients First Patient October 2014 August 2015 Enrollment Complete February 2016 Expected Completion

13 DEMOGRAPHICS PLATINUM Diversity N=1,501 Women Minorities N=1,057 N=766
White Black Hispanic Asian American Indian Pacific Islander Other Women N=1,057 Minorities N=766 42% 58%

14 BASELINE CHARACTERISTICS
Variable White Men 1,635 pt 2,207 les Women 1,863 pt 2,463 les P-value Minority 1,059 pt 1,455 les Age, y 63 ± 11 66 ± 12 <0.0001 62 ±11 0.01 Current Smoker, % 22 0.73 24 0.50 Current Diabetes, % 34 42 51 Hyperlipidemia, % 76 75 0.42 72 0.05 Hypertension, % 84 History of CAD, % 60 63 0.07 48 ACS, % 59 55 53 0.0006 MI <72h, % 31 0.02 33 0.002 Renal Disease, % 9 14 20 RVD, mm 3.0 ± 0.54 2.9 ± 0.50 2.9 ± 0.52 0.003 Lesion Length, mm 17 ± 11 18 ± 11 0.65 19 ± 11 Severe Calcification, % 3.3 8.8 9.3 Thrombus, % 13 9.1 8.6 Study Stents/pt 1.5 ± 0.82 1.5 ± 0.77 0.37 1.6 ± 0.87 0.11 White men from PE Plus PAS; Females/minorities from DIVERSITY and PE Plus PAS ; P-value from χ2 test; les=lesions

15 ANTIPLATELET MEDICATION USE
100 90 80 70 ASA White men Women Minority P-value (vs white men) 100 90 80 70 Dual Antiplatelet Therapy P-value (vs white men) (Discharge) Time (Months) Patients were treated with one of the following P2Y12 inhibitors per standard of care; P-value from χ2 test

16 PRIMARY ENDPOINT: DEATH/MI/TVR
White men Women 1 Endpoint Components of 1 Endpoint P=0.33 P=0.04 P=0.06 P=0.27 Binary Rates; Per protocol, MI definition based on CK > 2x ULN; P-value from χ2 test

17 PRIMARY ENDPOINT: DEATH/MI/TVR
White men Women Minority 1 Endpoint Components of 1 Endpoint P=0.33 P=0.04 P=0.06 P=0.27 P=0.08 P=0.03 P=0.0002 P=0.97 Binary Rates; Per protocol, MI definition based on CK > 2x ULN; P-value from χ2 test

18 SECONDARY ENDPOINT: DEATH/MI
White men Women Minority 10 8 6 4 2 P-values White men vs Women P=0.006 White men vs Minority P=0.0002 6.5 5.1 Death/MI, % 3.0 180 365 Time (Days) At-risk Patients White Men 1635 1569 1068 Women 1863 1795 1251 Minority 1059 1017 715 Kaplan Meier Rates; P-value from log-rank test

19 Kaplan Meier Rates; P-value from log-rank test
12 MONTH TVR White men Women Minority 10 8 6 4 2 P-values White men vs Women P=0.95 White men vs Minority P=0.91 5.9 5.6 TVR, % 4.8 180 365 Time (Days) At-risk Patients White Men 1635 1554 1045 Women 1863 1784 1227 Minority 1059 1011 707 Kaplan Meier Rates; P-value from log-rank test

20 Kaplan Meier Rates; P-value from log-rank test
DEFINITE/PROBABLE ST White men Women Minority 10 8 6 4 2 P-values White men vs Women P=0.31 White men vs Minority P=0.20 Definite/Probable ST, % 1.2 0.9 0.7 180 365 Time (Days) At-risk Patients White Men 1635 1567 1062 Women 1863 1797 1242 Minority 1059 1018 711 Kaplan Meier Rates; P-value from log-rank test

21 PRESPECIFIED MULTIVARIATE ANALYSIS
Women vs White Men Multivariate Adjustment Odds Ratio (95% CI) P-value C-statistic Death/MI/TVR 1.1 [0.87, 1.47] 0.35 Death/MI 1.6 [1.11, 2.39] 0.01 0.74 Death 1.4 [0.91, 2.28] 0.11 MI 1.7 [0.91, 3.09] 0.09 TVR 0.87 [0.63, 1.19] 0.42 Minority vs White Men Multivariate Adjustment Odds Ratio (95% CI) P-value C-statistic Death/MI/TVR 1.1 [0.81, 1.47] 0.57 Death/MI 1.9 [1.22, 2.80] 0.004 0.74 Death 1.0 [0.62, 1.75] 0.11 MI 2.6 [1.40, 4.82] 0.002 TVR 0.87 [0.63, 1.19] 0.95 Risk vs White Men: Lower Higher Variables in the analysis include history of CABG, CHF, MI, MVD, PCI, renal disease, ISR, hypertension, PVD, CVA, LM, hyperlipidemia, AF, TIA, cardiogenic shock, NYHA Class , family history of CAD, BMI as well as diabetic, angina and smoking status; lesion/procedural characteristics: de novo lesion, calcification, CTO and TO, tortuosity, lesion within or distal to a >60 bend in the vessel, ostial or bifurcated lesion, culprit Lesion for STEMI, TIMI flow, thrombus, restenotic lesion, target lesion vessel, # study stents implanted, pre-or post-dilatation, brachytherapy, IVUS

22 CONCLUSIONS “All-comers” coronary stent trials do not represent a random selection of U.S. patients and tend to lack adequate enrollment of women and minorities By employing an “enriched enrollment” prospective cohort design, PLATINUM DIVERSITY efficiently produced valuable outcomes data to help bridge this gap Despite significant differences in baseline clinical and angiographic characteristics, women, minorities and white men showed no differences in death/MI/TVR

23 CONCLUSIONS Women showed an increased risk of death/MI
Minorities showed an increased risk of MI and death/MI Similar rates of TVR and ST among all 3 groups suggest that “device failure” is unlikely to account for the observed differences These results highlight the heterogeneity conferred by sex and race and suggest further study into the biologic, social, behavioral, and economic factors that impact CV risk after DES

24 SOCIAL/BEHAVIORAL FACTORS
PLATINUM DIVERSITY SOCIAL/BEHAVIORAL FACTORS Marital Status/Living situation Income Employment status Education Hx alcohol/substance abuse Social/ behavioral determinants of health Life Wellness Access or healthcare utilization Language Birth country 1 language/English fluency Language concordance BMI Exercise regularity Type of insurance Early subject contact Current PCP Time/distance to hospital Smartphone usage Parameters not collected in PE Plus PAS Future analyses will investigate the impact of these parameters

25 ACKNOWLEDGEMENTS Paul Underwood Dominic Allocco
Peter Mauer Craig Thompson Eileen Rose Kristine Roy Songtao Jiang Peter Lang Eileen Rose Alison Osattin Peter Lam

26 End


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