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Les stents actifs « actualités ». Victor Legrand CHU de Liège. Stents actifs. Malheurs et déceptions. ACTION Trial Event Free survival curve. Overall Intent-to-treat Population, Per patient (N=1329/1531 § ). MACE (%)*. 15.7. TVF (%)**. 16.7. Death (%). 2.3. QMI (%). 2.3. Non-QMI (%).
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Les stents actifs« actualités » Victor Legrand CHU de Liège
Stents actifs Malheurs et déceptions
Overall Intent-to-treat Population, Per patient (N=1329/1531§) MACE (%)* 15.7 TVF (%)** 16.7 Death (%) 2.3 QMI (%) 2.3 Non-QMI (%) 2.6 TLR (%) (CABG/PCI) 8.5 (1.7/6.8) TVR (%) (CABG/PCI) 1.1 (0.1/1.0) Deliver II : Evénements à 6 mois *: MACE: Death, Q-wave MI (QMI), non-Q-wave MI (NQMI), Target lesion revascularization (TLR) by CABG or PCI **: TVF: MACE + Target vessel revascularization by CABG or PCI §89% patients came back within 200 days
Stents actifs Risques
All Stent Thrombosis 0.8% In Hospital 0.3% Out of Hosp (to 30 days) 0.3% Out of Hosp (31-180 days) 0.2% Out of Hosp (181-270 days) 0.0% Incomplete Apposition Resolved 5.4% Persistent 1.1% Late Acquired 2.2% Aneurysms Resolved 0.4% Persistent 0.4% Late Acquired 0.4% TAXUS IV: SafetyThrombosis, Incomplete Apposition & Aneurysms Express™ Control TAXUS™ Stent 0.6% 0.0% 0.3% 0.3% 0.0% 6.4% 3.2% 1.1% 1.0% 0.7% 0.0% All p values = ns
All Stent Thrombosis 0.8% In Hospital 0.0% Out of Hosp (to 30 days) 0.2% Out of Hosp (31-180 days) 0.3% Out of Hosp (181-270 days) 0.3% Incomplete Apposition Resolved 4.9% Persistent 9.8% Late Acquired 0.0% Aneurysms Resolved Persistent Late Acquired 1.1% SIRIUS : SafetyThrombosis, Incomplete Apposition & Aneurysms BX™ Control Cypher™ Stent 0.4% 0.0% 0.2% 0.2% 0.0% 8.7% 7.5% * 8.7% 0.6% * p = 0.05
Thrombose du stent (étude Taxus IV) P=0.75 0.6% (n=4) 0.8% (n=5) Thrombose du Stent %
Stents actifs Efficacité
Dante Pazzanese FIM - Event free survival Death, MI, CABG, Re-PTCA 100 90.1% 80 Patients without Events (%) 60 40 20 0 24 0 12 6 18 30 36 Time (Months)
RAVEL Target Lesion Revascularization 97.5% 86.4% P (FE) = 0.002 P (LR) = 0.001
# events prevented per 1,000 patients CYPHER™ Stent Patients: TLR Improvements (SIRIUS, 12 mos.) Sirolimus Control p-value Overall 4.9 20.0 0.0001 152 M ale 5.2 20.5 0.0001 153 Female 4.1 19.0 0.0002 149 Diabetes 8.4 26.4 0.0002 180 No Diabetes 3.7 17.6 0.0001 138 LAD 6.0 23.0 0.0001 170 Non-LAD 4.1 18.0 0.0001 140 Small Vessel (<2.75) 6.6 22.3 0.0001 157 Large Vessel 3.1 18.2 0.0001 151 Short Lesion 4.0 18.6 0.0001 146 Long Lesion (>13.5) 6.0 21.9 0.0001 158 Overlap 5.7 23.2 0.0001 175 No Overlap 4.5 18.6 0.0001 141 Hazards Ratio 95% CI 0 0.1 0.2 0.4 0.5 0.6 0.7 0.8 0.9 1.0 0.9 0.8 0.7 0.3
Resténose BinaireAnalysePéri-Stent : E-SIRIUS vs SIRIUS Proximal Margin Distal Margin p = 0.285 p = 0.018 p = 0.002 p = 0.002
Control BMS TAXUS DES SIRIUS DES Resténose et dimensions vasculaires TAXUS IV SIRIUS P<0.001 P<0.001 P<0.001 P<0.001 P<0.001 P=0.08 * TAXUS: 9 month analysis; SIRIUS: 8 month analysis
SIRIUS - Restenosis vs. Stent Length In-Stent 52.4 44.3 36.7 Control 29.7 23.5 Sirolimus 6.5 4.1 2.6 1.7 1.0
30 days 6months 30 days 6 months Death - 1 - - Q MI - 1 1 1 nonQMI 5* 5 1 1 TLR 1 4 1 1 CABG - 1 - - TOTAL 6 12(19%) 3 3(13.6%) BIFurcation StudyT stenting vs provisional T stenting Stent+Stent (n=63) Stent+PTCA (n=22) * : 2 stent thrombosis
Control BMS TAXUS DES SIRIUS DES Resténose et diabète In-stent Analysis segment P<0.001 P<0.001 P<0.001 P<0.001 n=58 n=78 n=104 n=93 n=58 n=78 n=104 n=93 TAXUS-IV SIRIUS TAXUS-IV SIRIUS * TAXUS: 9 month analysis; SIRIUS: 8 month analysis
Control BMS TAXUS DES SIRIUS DES Resténose et diabète insulino dép. In-stent Analysis segment P=0.38 P=0.01 P=0.007 P=0.03 n=54 n=51 n=44 n=38 n=54 n=51 n=44 n=38 TAXUS-IV SIRIUS TAXUS-IV SIRIUS * TAXUS: 9 month analysis; SIRIUS: 8 month analysis
Stents actifs Registres cliniques
Research Registry • Pts treated with at least 1SES 1072pts/2346sts • Multivessel dilatation 338 (32%) • stent diameter = 2.25mm 205 (19%) • bifurcation stenting (stent+stent) 214 (20%) • total stent length>48mm 332 (31%) • LM 51 (5%) • CTO 71 • Unstable angina 462 (43%) • Diabetes 224 (21%) • AMI(primary PCI) 241 (16%)
Stents actifs Evaluations en cours
TAXUS Clinical Trials Feasibility Study TAXUS I Slow release TAXUS IV Slow Release TAXUS V Slow Release Safety & Performance Study TAXUS II Cohort I Slow release TAXUS II Cohort II Moderate release TAXUS VI Moderate Release In-stent Restenosis TAXUS III Slow release
THE REALITY STUDY A Prospective, Randomized, Multi-Center Comparison of the CYPHERTM Sirolimus-Eluting and the TAXUSTM Paclitaxel-Eluting Stent Systems Primary Endpoint: in-lesion restenosis rate by QCA at 8 mths
Compagnie Nom Drogue Polymère J&J/Cordis Cypher Rapamycin Yes Boston Scientific TAXUS Paclitaxel Yes Cook Logic PTX Paclitaxel No Guidant/Cook Achieve Paclitaxel No Guidant LifeFloActinomycin D Yes Conor ? Paclitaxel No Biocompatibles ? Batimastat / Yes (dexamethosone) Medtronic ? Antisense Yes Medtronic/Abbott ? ABT 578 Yes Jomed ? Tacrolimus Yes Guidant ? Everolimus Yes Le paysage des stents actifs
Pour conclure... • Deux stents actifs ( Cypher et Taxus) ont prouvé leur efficacité pour prévenir la resténose. • Les données cliniques à court et moyen terme sont rassurantes. • La place de ces endoprothèses dans certaines indications ( resténose instent, pontages, multitronculaires,…) reste à préciser. • De nouvelles drogues, des associations de médicaments, de nouveaux modes de libération thérapeutique et des nouveaux stents sont en cours d ’évaluation.
Drug Eluting Stent Trials Comparison of % Neointimal Volume(Neointimal Volume / Stent Volume) 22.6 16.7 12.8 7.9 7.8 7.2 2.9 2.9 1.1 1.0 FUTURE FI F2 S-Stent ASPECT Low High TAXUS IISR MR TAXUS I RAVEL SIRIUS
Drug Eluting Stent Trials Comparison of In-Stent Late Loss 0.85 0.57 0.39 0.36 0.31 0.29 0.30 0.17 0.12 0.11 -0.05 S-Stent FUTURE FI F2 TAXUS I SIRIUS ASPECT Low High TAXUS IISR MR RAVEL TAXUS IV