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12 Month Outcomes in Patients with Diabetes Mellitus Implanted with a Resolute Zotarolimus-eluting Stent: Initial Results from the RESOLUTE Global Clinical.

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Presentation on theme: "12 Month Outcomes in Patients with Diabetes Mellitus Implanted with a Resolute Zotarolimus-eluting Stent: Initial Results from the RESOLUTE Global Clinical."— Presentation transcript:

1 12 Month Outcomes in Patients with Diabetes Mellitus Implanted with a Resolute Zotarolimus-eluting Stent: Initial Results from the RESOLUTE Global Clinical Program Stephan Windecker On behalf of the RESOLUTE Clinical Program Investigators Swiss Cardiovascular Center and Clinical Trials Unit Bern Bern University Hospital, Switzerland

2 Potential conflicts of interest
Speaker’s name: Stephan Windecker MD  I have the following potential conflicts of interest to report:  Research contracts  Consulting  Employment in industry  Stockholder of a healthcare company  Owner of a healthcare company  Other(s)  I do not have any potential conflict of interest 2

3 Background While drug eluting stents (DES) are often used in complex patient and lesion cohorts the amount of data on current generation DES in this patient cohort is limited. Resolute All Comers is an unrestricted open label trial that provides the ability to assess the outcomes in both the more well studied simple patient cohort and the more complex, higher risk patient cohort.

4 Baseline Patient and Lesion Characteristics
Resolute All Comers Complex Versus Simple Patients Variable, % Complex n = 1520 Simple n = 772 pts P value Age, years (Mean+SD) 63.9±11.1 65.1±10.3 0.009 Men 78.9 72.9 0.001 Diabetes mellitus 23.1 24.2 0.566 Hypertension 70.0 73.6 0.079 Hyperlipidemia 63.2 71.2 <0.001 Current smoker 29.5 20.6 Prior myocardial infarction 29.9 0.845 Prior PCI 32.4 31.1 0.538 Prior coronary artery bypass grafting 10.9 7.6 0.014 Current revasc for UA/MI 33.7 LAD 51.1 49.7 Lesion Length (mm) 12.4±8.6 11.3±5.1 RVD (mm) 2.6±0.6 2.6±0.5 0.216 Diameter Stenosis 65.8±19.7 58.7±12.5 B2/C 79.5 66.9 Stefanini G et al. J Am Coll Cardiol 2011, in press 4 4

5 RESOLUTE All Comers – Complex Patients
Clinical Outcomes to 12 Months R-ZES EES (n=764) (n=756) Percentage [%] Cardiac Death ARC ST Def/Prob Death TV-MI CD/TV-MI CI-TLR P=0.02 P=0.24 P=0.90 P=0.58 P=0.26 P=0.80 5

6 RESOLUTE All Comers – Simple Patients
Clinical Outcomes to 12 Months R-ZES EES (n=376) (n=396) Percentage [%] Cardiac Death ARC ST Def/Prob Death TV-MI CD/TV-MI CI-TLR P=0.79 P=0.50 P=0.70 P=0.48 P=0.12 P=0.49 6

7 The Impact of Patient and Lesion Complexity on Outcomes in the RESOLUTE AC Trial
Target Lesion Failure 10% ZES Simple ZES Complex 9.8 8.9 EES Simple EES Complex 8% 6.8 6% 5.6 Cumulative Incidence Patient Oriented Composite 4% 2% 0% 30 60 90 120 150 180 210 240 270 300 330 360 Time after Initial Procedure (days) No. at Risk EES Complex 756 703 693 677 662 738 701 698 686 667 670 709 ZES Complex 764 723 709 696 685 744 718 711 708 692 693 703 725 EES Simple 396 377 375 369 357 385 376 365 368 370 379 ZES Simple 376 353 351 346 340 366 352 350 345 348 359 Stefanini G et al. J Am Coll Cardiol 2011, in press

8 Diabetic Patient Analysis
The ability to assess outcomes in broad patient populations such as simple or complex is possible from a single randomized trial such as Resolute All Comers, however for assessment of more specific sub-groups such as diabetics the prospective analysis from a broader pooled patient data set may allow for more clarity and confidence in reported outcomes. Patients with diabetes are of particular interest as outcomes in this sub group have not been as low as seen in the broader general patient population. 8 8

9 Five Year Outcomes of Diabetic Patients Included into the SIRTAX Trial
Diabetes No Diabetes Ischemia Driven MACE, 0 to 5 YEARS Ischemia Driven TLR, 0 to 5 YEARS 40% 40% HR (95% Cl): 1.45 ( ), p=0.02 HR (95% Cl): 1.09 ( ), p=0.67 30% 30% Cumulative Incidence 20% Cumulative Incidence 20% 10% 10% 0% 0% 1 2 3 4 5 1 2 3 4 5 Years after Index PCI Years after Index PCI Cardiac Death or MI, 0 to 5 YEARS ARC Definite Stent Thrombosis, 0 to 5 YEARS 40% HR (95% Cl): 1.74 ( ), p=0.01 40% HR (95% Cl): 1.07 ( ), p=0.85 30% 30% Cumulative Incidence 20% Cumulative Incidence 20% 10% 10% 0% 0% 1 2 3 4 5 1 2 3 4 5 Years after Index PCI Years after Index PCI

10 Five Year Outcomes of Diabetic Patients Included into the SIRTAX Trial
Adjusted HR (95% CI) p-interaction Cardiac death 0 to 1 year 2.67 ( ) 1 to 5 years 2.16 ( ) 0 to 5 years 2.28 ( ) 0.72 MI 1.05 ( ) 1.60 ( ) 0.97 1.45 ( ) Ischemia driven TLR 1.13 ( ) 1.21 ( ) 0.96 1.16 ( ) MACE 1.45 ( ) 0.90 1.47 ( ) 1.45 ( ) .1 .2 .5 1 2 5 10 Non Diabetes Diabetes

11 Mortality in Diabetic vs Non-Diabetic Patients in Trials With At Least 6 Months Clopidogrel
Bare Metal Stent (BMS) Paclitaxel Eluting Stent (PES) Sirolimus Eluting Stent (SES) Diabetic Patients N=3,852 Non-Diabetic Patients N=10,947 SES vs BMS: hazard ratio 0.88 (0.55 to 1.30) PES vs BMS: hazard ratio 0.91 (0.60 to 1.38) SES vs PES: hazard ratio 0.95 (0.63 to 1.43) SES vs BMS: hazard ratio 1.05 (0.69 to 1.73) PES vs BMS: hazard ratio 0.89 (0.66 to 1.18) SES vs PES: hazard ratio 1.23 (0.82 to 1.69) 20% 20% 16% 16% 12% 12% Cumulative Incidence of Death Overall 8% 8% 4% 4% 0% 0% 1 2 3 4 1 2 3 4 Years after Initial Procedure Years after Initial Procedure No. of Events/No. of Patients No. of Events/No. of Patients BMS 904 37/904 15/632 7/358 10/224 2851 60/2851 26/1845 10/1052 18/811 PES 1162 35/1162 40/1020 11/535 3/158 3585 63/3585 35/3080 21/1655 12/722 SES 1078 39/1078 26/830 12/497 1/73 2857 52/2857 25/2091 10/995 6/182 Stettler C et al. Brit Med J 2008 11

12 Diabetic Patient Analysis
Methods An analysis of outcomes in the diabetic patients fro the one randomized control trial and 4 single arm studies was prospectively planned and therefore we evaluated the effectiveness of the Resolute ZES in these patients from all these studies. Of the 5130 patients enrolled in the RESOLUTE Global Clinical Program, a significant proportion were considered high risk with complex lesions, 1535 had diabetes and of that 57.2% that are considered “on label” diabetic patients are included in this initial analysis. The analysis of this cohort was a pre specified analysis in the Global Resolute Clinical Program. 12 12

13 RESOLUTE Global Clinical Program
Enrollment Complete - In Follow Up RESOLUTE1 Non-RCT First-in-Human (R=139) 4 yr RESOLUTE AC2,3 1:1 RCT vs. Xience V (R=1140; X=1152) 2 yr RESOLUTE Int Non-RCT Observational (R=2349) 1 yr 2.25 – 3.5mm Non-RCT vs. Hx Control (R=1242) 1 yr RESOLUTE US4 2.25 – 3.5mm Angio/IVUS Non-RCT vs. Hx Control (R=100) 1 yr 4.0mm Angio Non-RCT vs. Hx Control (R=60) 1 yr RESOLUTE Japan 2.5 – 3.5mm Non-RCT (R=100) vs. Hx Control 1 yr R Japan SVS 2.25 Non-RCT vs. PG (R=63) <1 yr RESOLUTE US 38 mm sub-study Non-RCT vs. PG (R= ) < 30d Enrolling / Planning RESOLUTE Asia Non-RCT (R≈300) enroll R-China Registry Registry (R=1500 max) enroll R-China RCT 3:1 vs. Cypher (R=742; C=248) plan 1 Meredith IT, et al. EuroIntervention. 2010;5: Serruys PW, et al. N Engl J Med. 2010;363: 3 Silber S, et al. Lancet. 2011;377: Yeung AC, et al. JACC. 2011;57(17):

14 RESOLUTE Global Clinical Program
Diabetic Patient Analysis 5130 Patients Enrolled Total Diabetic Patient Population N = 1535 ‘On label’ Diabetic Population N = 878 57.2% of total diabetic population On label is defined as all enrolled subjects excluding subjects with bifurcation, bypass grafts, ISR, AMI ≤ 72 hours, LVEF <30%, unprotected left main lesion, >2 vessels stented, renal insufficiency or failure (creatinine ≥ 140µmol/L), total lesion length per vessel >27 mm, >1 lesion per vessel, lesion with thrombus, or total occlusion (preprocedure TIMI = 0).

15 RESOLUTE Pooled – On Label Diabetics
Baseline Characteristics Variable, % n=878 Age, years (Mean+SD) 65.2 ± 10.2 Men 66.4 Diabetes mellitus 100.0 Insulin Dependent DM 28.5 Hypertension 87.6 Hyperlipidemia 86.2 Current smoker 18.2 Family History 37.8 Prior percutaneous coronary intervention 34.6 Prior coronary artery bypass grafting 10.5 Prior MI 24.9 LAD 39.5 Lesion Length (mm) 22.48 ± 11.25 RVD (mm) 2.66 ± 0.48 Minimum Luminal Diameter (mm) 0.74 ± 0.39 B2/C 65.9 15 15

16 RESOLUTE Pooled – On Label Diabetics
Clinical Outcomes to 12 Months n = 867 Percentage [%] Death Cardiac Death TV-MI CD/TV-MI ARC ST Def/Prob CI-TLR TLF TVF MACE

17 RESOLUTE Pooled – On Label Diabetics
Dual Antiplatelet Therapy (DAPT) Usage % of patients on DAPT at: 30 Days 6 Months 12 Months Aspirin 97.7 97.1 96.8 Clopidogrel 96.3 95.6 90.6 Ticlopidine 1.9 2.0 DAPT 96.2 94.9 90.1

18 ARC Stent Thrombosis to 12 Months
RESOLUTE Pooled – On Label Diabetics ARC Stent Thrombosis to 12 Months % (n) Definite ST Early: (0 – 30 days) 0.1 (1) Late: (31 days – 360 days) All: (0 days – 360 days) 0.2 (2) Probable ST Early : (0 – 30 days) 0.0 (0) Definite/Probable ST 0.3 (3)

19 RESOLUTE Pooled – On Label DM vs Non-DM
Target Lesion Failure (cardiac death, TV MI and TLR) 15% Diabetics (N = 878) P value = 0.081 Hazard Ratio = 1.341 95% CI (0.96, 1.87) Non Diabetics (N = 1903) 10% Cumulative Incidence of TLF 6.6% 5% 4.9% 0% 3 6 9 12 Time after Initial Procedure (months) Error bars indicate a point-wise two-sided 95% confidence interval (±1.96*SE). Standard Error based on the Greenwood Formula.

20 RESOLUTE Pooled – On Label DM vs Non-DM
Clinically Driven Target Lesion Revascularization 15% Diabetics (N = 878) P value = Hazard Ratio = 1.676 95% CI (1.03, 2.72) Non Diabetics (N = 1903) 10% Cumulative Incidence of TLR 5% 3.4% 2.0% 0% 3 6 9 12 Time after Initial Procedure (months) Error bars indicate a point-wise two-sided 95% confidence interval (±1.96*SE). Standard Error based on the Greenwood Formula.

21 RESOLUTE Pooled – On Label DM vs Non-DM
Cardiac Death and Target Vessel MI 15% Diabetics (N = 878) P value = Hazard Ratio = 1.134 95% CI (0.73, 1.75) Non Diabetics (N = 1903) 10% Cumulative Incidence of Cardiac Death/TV MI 5% 3.6% 3.1% 0% 3 6 9 12 Time after Initial Procedure (months) Error bars indicate a point-wise two-sided 95% confidence interval (±1.96*SE). Standard Error based on the Greenwood Formula.

22 RESOLUTE Pooled – On Label DM vs Non-DM
Definite/Probable Stent Thrombosis 15% Diabetics (N = 878) P value = Hazard Ratio = 1.086 95% CI (0.27, 4.34) Non Diabetics (N = 1903) 10% Cumulative Incidence of ARC Definite/Probable Stent Thrombosis 5% 0.3% 0% 0.3% 3 6 9 12 Time after Initial Procedure (months) Error bars indicate a point-wise two-sided 95% confidence interval (±1.96*SE). Standard Error based on the Greenwood Formula.

23 RESOLUTE Pooled – On Label DM vs Non-DM
Patient Oriented Endpoint Log Rank P value = 0.023 Diabetics (N = 878) Non Diabetics (N = 1903) 20% 15% 14.4% 11.2% Cumulative Incidence 10% 5% 0% 3 6 9 12 Time after Initial Procedure (months) Error bars indicate a point-wise two-sided 95% confidence interval (±1.96*SE). Standard Error based on the Greenwood Formula.

24 Summary Additional findings from the Resolute All Comers trial reinforces the lower events rates that are expected when treating “simple” patient and lesion cohorts R-ZES and EES have similar outcomes and are safe and effective among patients with complex baseline clinical and angiographic characteristics through 1 year. In addition the initial analysis of the diabetic patient population from larger pooled Resolute clinical program: Indicates consistently low adverse events rates despite the higher risk nature of this patient population Suggests that the treatment effect of the Resolute Zotarolimus eluting stent seen in the non diabetic patient population may be consistent even in the diabetic patient population


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