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Neue Konzepte der Therapie venöser Thromboembolien. Paul Kyrle Univ. Klinik f. Innere Medizin I AKH/Medizinische Universität Wien. Therapie der VTE – verschiedene Möglichkeiten. Thrombolyse hämodynamisch instabile PE, 4-Etagen tVT (?) UFH Niereninsuffizienz, hohes Blutungsrisiko
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Neue Konzepte der Therapie venöser Thromboembolien Paul Kyrle Univ. Klinik f. Innere Medizin I AKH/Medizinische Universität Wien
Therapie der VTE – verschiedene Möglichkeiten • Thrombolyse • hämodynamisch instabile PE, 4-Etagen tVT (?) • UFH • Niereninsuffizienz, hohes Blutungsrisiko • Cave: HIT II (~ 2 %) • Fondaparinux • NMH
Therapie der VTE mit NMH/VKA • gewichtsadaptiert („therapeutische Dosis“) • 1 x oder 2 x tgl. s.c. • mindestens 5 Tage • bis INR mindestens 24 Stunden > 2 • VKA ab Tag 1, mindestens 3 Monate (INR 2-3)
Treatment of VTE: past, present and future Heparin Vitamin K antagonists Heparin Dabigatran/Edoxaban Rivaroxaban/Apixaban
Treatment of VTE: past, present and future Heparin Vitamin K antagonists Heparin Dabigatran/Edoxaban Rivaroxaban/Apixaban
Treatment of VTE acute subacute extended up to 2 weeks up to 3 - 6 months > 6 months
Idraparinux vs. Heparin/VKA – van Gogh-PE The van Gogh Investigators. N Engl J Med 2007;357:1094-1104
LMWH/Dabigatran vs. LMWH/VKA for acute VTE RE-COVER Single-dummy period Double-dummy period Warfarin placebo Dabigatran Warfarin placebo Dabigatran placebo Warfarin Warfarin (INR 2.0–3.0) Initial parenteral therapy 6 months End of treatment Until INR 2.0 E R E= enrolment R= randomization Schulman, N Engl J Med 2009
RE-COVER - Dabigatran for acute/subacute VTE Recurrent VTE and related death Non-inferiority p<0.001 Schulman, N Engl J Med 2009
RE-COVER - Dabigatran for acute/subacute VTE Bleeding Schulman, N Engl J Med 2009
EINSTEIN: Rivaroxaban for acute VTE Randomized, open-label, event-driven, non-inferioritystudy EINSTEIN DVT/PE Treatment period of 3, 6 or 12 months Objectively confirmed DVT without symptomatic PE Rivaroxaban Rivaroxaban N=~2,900 15 mg bid 20 mg od 30-day observation period R Objectively confirmed PE with or without symptomatic DVT Enoxaparin 1.0 mg/kg bid for at least 5 days, followed by VKA to start ≤48 hours, target INR 2.5 (INR range 2–3) N=~3,300 Day 1 Day 21
EINSTEIN-DVT - Rivaroxaban for acute DVT Recurrent VTE and related death HR=0.68 (95% CI: 0.44–1.04) p<0.001 for non-inferiority p=0.08 for superiority EINSTEIN Investigators, N Engl J Med 2010
EINSTEIN-DVT - Rivaroxaban for acute DVT Clinically significant bleeding EINSTEIN Investigators, N Engl J Med 2010
EINSTEIN-PE Büller et a., NEJM 2012
EINSTEIN-PE Büller et a., NEJM 2012
EINSTEIN-PE Büller et a., NEJM 2012
Treatment of VTE acute subacute extended up to 2 weeks > 6 months up to 3 - 6 months NOACS as safe and effective NOACS as effective, but safer
Transient risk factors Iorio, Arch Intern Med 2012 (systematic review of 15 studies)
Risk of recurrence after unprovoked VTE Kyrle, Rosendaal & Eichinger, Lancet 2010
distal DVT p < 0,001 proximal DVT RR (95% CI): distal 1 proximal 2,5 (1,6 – 3,9) PE 2,4 (1,5 – 3,7) symptomatic PE +/- DVT Cumulative Probability of Recurrence (%) n = 347 n = 333 n = 151 Years after Discontinuation of Anticoagulation
Rezidivrisiko der VTE • Antikoagulation • VKA • NOAK • Aspirin • Therapie nach Risikostratifitierung
Randomized, double-blind, placebo-controlled, event-driven (n=30), superiority study Confirmed symptomatic DVT or PE completing 6 or 12 months of rivaroxaban or VKA in EINSTEIN VTE program Treatment period of 6 or 12 months ~53% Rivaroxaban 20 mg od N=1,197 R 30-day observational period Placebo Day 1 Confirmed symptomatic DVT or PE completing 6 or 12 months of VKA ~47% EINSTEINext - Rivaroxaban for extended thromboprophylaxis after VTE Study design EINSTEIN Investigators, NEJM 2011
EINSTEIN-DVT - Rivaroxaban for acute DVT Continued treatment EINSTEIN Investigators, N Engl J Med 2010
no major bleeds 4 major bleeds EINSTEIN-DVT - Rivaroxaban for acute DVT Continued treatment EINSTEIN Investigators, N Engl J Med 2010
AMPLIFY - Extended Agnelli, NEJM 2012
AMPLIFY - Extended Agnelli, NEJM 2012
RE-MEDY™ study design Screening/ baseline Follow up 30 days Treatment period Dabigatran etexilate 150 mg bid Warfarin placebo Anticoagulant therapy 3–12 months* Warfarin (INR 2.0–3.0) Dabigatran placebo and “increased risk of recurrence” 0–7 days untilINR ≤2.3 ConfirmedVTE Up to 36 months* End of treatment S R *Original protocol, 3–6 months of pre-treatment, then 18 months on study drug; amendment allowed 3–12 months of pre-treatment, then up to 36 months on study drug. S, screening; R, randomization.
Major bleeding HR 0.52 (95% CI: 0.27–1.02) Percentage p = 0.058 48% RRR 1.8% 0.9% 13/1430 25/1426 On treatment RRR, relative risk reduction.
Rezidivrisiko der VTE • Antikoagulation • VKA • NOAK • Aspirin • Therapie nach Risikostratifitierung
Rezidivrisiko der VTE • Antikoagulation • VKA • NOAK • Aspirin • Therapie nach Risikostratifitierung
Prediction rules for recurrent VTE • Men continue and HER DOO2 • Vienna Prediction Model • DASH Score • Ottawa Score (cancer patients only)
Preselection of risk factors Vienna Prediction Model • 929 patients with first unprovoked VTE • impact on the recurrence risk independently confirmed • simple assessment, reproducibility • clinical variables: age at venous thrombosis, sex, location, BMI • laboratory variables: FV Leiden, prothrombin mutation, D-Dimer Eichinger, Circulation 2010
RFs after forward selection Vienna Prediction Model • sex • location (distal vs. proximal vs. PE) • D-Dimer 3 weeks after cessation of anticoagulation Eichinger, Circulation 2010