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S ystolic H eart failure treatment with the If inhibitor ivabradine T rial Michel Komajda on behalf of the Investigators
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Disclosures SHIFT Executive Committee members received fees, research grants, or both from Servier, as well as fees for speaking or consulting from other major cardiovascular pharmaceutical companies
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Background Elevated heart rate is associated with poor outcome in a number of cardiovascular conditions including heart failure Heart rate remains elevated in many heart failure patients despite treatment by beta-blockers Ivabradine is a novel heart rate-lowering agent acting by inhibiting the I f current in the sino-atrial node We hypothesized that the addition of ivabradine to recommended therapy would be beneficial in heart failure patients with elevated heart rate
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Primary objective To evaluate whether the I f inhibitor ivabradine improves cardiovascular outcomes in patients with 1. Moderate to severe chronic heart failure 1. Moderate to severe chronic heart failure 2. Left ventricular ejection fraction 35% 2. Left ventricular ejection fraction 35% 3. Heart rate 70 bpm and 3. Heart rate 70 bpm and 4. Recommended therapy 4. Recommended therapy
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Europe GermanyPortugal BelgiumGreeceSpain DenmarkIrelandSweden Finland Italy Turkey France The Netherlands UK Bulgaria Czech Republic Estonia Hungary South America Argentina Brazil Chili North America Canada Asia China Hong Kong India South Korea Malaysia Australia Latvia Lithuania Norway Poland Romania Russia Slovakia Slovenia Ukraine Multinational study 6505 patients, 37 countries, 677 centres
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Study organisation Steering Committee Argentina: S. Perrone Australia: H. Krum Belgium: W. Van Mieghem Brazil: E. Bocchi Bulgaria: T. Katova Canada: P. Liu Chile: J. Jalil China: D. Hu Czech Republic: J. Vitovec Denmark: L. Køber Estonia: T. Uuetoa Finland: M. Niemelä France: G. Jondeau Germany: K. Werdan Greece: D. Kremastinos Hong-Kong: C. Yu Hungary: K. Tóth India: D. S. Rao Ireland: K. Mc Donald Italy: M. Metra Latvia: J. Jirgenson † A. Erglis A. Erglis Lithuania: A. Kavoliuniene Malaysia: K. Sim The Netherlands: A. Voors Norway: K. Dickstein Poland: G. Opolski Portugal: L. Providência Romania: D. Ionescu Russia: G. Aroutiounov Slovakia: R. Hatala Slovenia: M. Sebestjen South Korea: B. Oh Spain: F. Avilés Sweden: R. Willenheimer Turkey: A. Oto United Kingdom:M. Cowie Ukraine: O. Parkhomenko Executive Committee M. Komajda co-chair, K. Swedberg co-chair M. Böhm, J. Borer, I. Ford, L. Tavazzi
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Study organisation Data Monitoring Committee P. Poole-Wilson, chair († March 2009) S. Pocock, chair (April 2009) J-Y. Le Heuzey M. Nieminen J. Camm (April 2009) Endpoint Validation Committee J.L. Lopez Sendon, chair M. Alings K. Dickstein A.Gavazzi J.R. Gonzalez-Juanatey E. Lopez de Sa P. Ponikowski
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18 years Class II to IV NYHA heart failure Ischaemic/non-ischaemic aetiology LV systolic dysfunction (EF 35%) Heart rate 70 bpm Sinus rhythm Documented hospital admission for worsening heart failure 12 months Inclusion criteria Swedberg K, et al. Eur J Heart Fail. 2010;12:75-81.
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Study design HR and tolerability Ivabradine 5 mg bid Matching placebo, bid Every 4 months D0 D14 D28 M4 Ivabradine 7.5/5/2.5 mg bid according to Swedberg K, et al. Eur J Heart Fail. 2010;12:75-81. 3.5 years Screening 7 to 30 days
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Study endpoints Cardiovascular death Hospitalization for worsening heart failure Primary composite endpoint Other endpoints All-cause / CV / HF death All-cause / CV / HF hospitalization Composite of CV death, hospitalization for HF or non-fatal MI NYHA class / Patient & Physician Global Assessment Swedberg K, et al. Eur J Heart Fail. 2010;12:75-81. In total population and in patients with at least 50% target dose of beta-blockers
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Patients and follow-up Median study duration: 22.9 months; maximum: 41.7 months 6558 randomized 3268 to ivabradine3290 to placebo 3264 analysed 1 lost to follow-up 3241 analysed 2 lost to follow-up 7411 screened Excluded: 27 Excluded: 27 Excluded: 26 Excluded: 26
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Baseline characteristicsIvabradine3241Placebo3264 Mean age, y Mean age, y60.760.1 Male, % Male, %7677 Ischaemic aetiology, % Ischaemic aetiology, %6867 NYHA II, % NYHA II, %4949 NYHA III/IV, % NYHA III/IV, %5151 Previous MI, % Previous MI, %5656 Diabetes, % Diabetes, %3031 Hypertension, % Hypertension, %6766
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Baseline characteristicsIvabradine3241Placebo3264 Mean heart rate, bpm Mean heart rate, bpm8080 Mean LVEF, % Mean LVEF, %2929 Mean SBP, mm Hg Mean SBP, mm Hg122121 Mean DBP, mm Hg Mean DBP, mm Hg7676 eGFR, mL/min/1.73 m 2 7575
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Chronic HF background treatment 89 91 84 61 22 3 90 91 83 59 22 4 0 10 20 30 40 50 60 70 80 90 100 Beta-blockersACEIs and/or ARBs DiureticsAldosterone antagonists DigitalisICD/CRT Ivabradine Placebo Patients (%)
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Background beta-blocker treatment 0 10 20 30 40 50 60 70 80 90 100 BB at randomization At least 50% target daily dose Target daily dose 89 56 26 Ivabradine Placebo 89 56 26 Patients (%)
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Mean heart rate reduction Mean ivabradine dose: 6.4 mg bid at 1 month 6.5 mg bid at 1 year 6.5 mg bid at 1 year 02 weeks148121620242832 Months 90 80 70 60 50 67 75 80 64 Ivabradine Placebo Heart rate (bpm)
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Ivabradine n=793 (14.5%PY) Placebo n=937 (17.7%PY) [ 0.75-0.90 HR = 0.82 [95% CI 0.75-0.90 ] p<0.0001 0612182430 Months 40 30 20 10 0 Ivabradine Placebo Primary composite endpoint - 18% Cumulative frequency (%)
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Ivabradine n=514 (9.4%PY) Placebo n=672 (12.7%PY) [ 0.66-0.83 HR = 0.74 [95% CI 0.66-0.83 ] p<0.0001 0612182430 Months 30 20 10 0 Ivabradine Placebo Hospitalization for heart failure - 26% Cumulative frequency (%)
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Ivabradine n=449 (7.5%PY) Placebo n=491 (8.3%PY) HR = 0.91 p=0.128 0612182430 Months 30 20 10 0 Ivabradine Placebo Cardiovascular death Cumulative frequency (%)
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Effect of ivabradine on outcomes Endpoints Hazard ratio 95% CI p value Primary composite endpoint0.82[0.75;0.90] p<0.0001 All-cause death0.90[0.80;1.02] p=0.092 Death from HF0.74[0.58;0.94] p=0.014 Hospitalisation for any cause0.89[0.82;0.96] p=0.003 Hospitalisation for CV reason0.85[0.78;0.92] p=0.0002 CV death/hospitalisation for HF or non-fatal MI0.82[0.74;0.89] p<0.0001
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Age <65 years ≥65 years Sex Male Female Beta-blockers No Yes Aetiology of heart failure Non-ischaemic Ischaemic NYHA class NYHA class II NYHA class III or IV Diabetes No Yes Hypertension No Yes Baseline heart rate <77 bpm ≥77 bpm Test for interaction p=0.029 1.51.00.5 Hazard ratio Favours ivabradineFavours placebo Effect of ivabradine in prespecified subgroups
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1.51.00.5 Hazard ratio Favours ivabradineFavours placebo IvabradineHazard ratio Primary composite endpoint 330 (11.9 PY) 0.90362 (13.3 PY) Cardiovascular death 176 (5.9 PY) 1.00175 (5.9 PY) Hospitalisation for worsening HF 213 (7.7 PY) 0.81260 (9.6 PY) Placebo Patients with at least 50% BB target dose (n=3181) p value ns ns p=0.021
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NYHA class changes 28 68 5 24 70 6 0 10 20 30 40 50 60 70 ImprovementStabilityWorsening Ivabradine Placebo p=0.0003 Patients (%)
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Incidence of selected adverse events (N = 6492) Patients with an event Ivabradine N=3232, % N=3232, % (n)Placebo N=3260, % N=3260, % (n) p value All serious adverse events 45% 45% ( 1450 ) 48% 48% (1553)0.025 All adverse events 75% 75% (2439) 74% 74% (2423)0.303 Heart failure 25% 25% (804) 29% 29% (937)0.0005 Symptomatic bradycardia 5% 5% (150) 1% 1% (32)<0.0001 Asymptomatic bradycardia 6% 6% (184) 1% 1% (48)<0.0001 Atrial fibrillation 9% 9% (306) 8% 8% (251)0.012 Phosphenes 3% 3% (89) 1% 1% (17)<0.0001 Blurred vision 1% 1% (17) <1% <1% (7)0.042
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Conclusion with systolic dysfunction Heart failure with systolic dysfunction and elevated heart rate is associated with poor outcomes (primary composite endpoint in the placebo group is 18%/year) Ivabradine reduced CV mortality or heart failure hospitalization by 18% (p<0.0001). The absolute risk reduction was 4.2% This beneficial effect was mainly driven by a favourable effect on heart failure death/hospital admission (RRR 26%) Overall, treatment with ivabradine was safe and well tolerated
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Clinical implications The addition of ivabradine to recommended therapy significantly reduces death and hospitalisations related to heart failure in patients with heart rate 70 bpm The NNT for 1 year to prevent … One primary endpoint is 26 One hospitalization for heart failure is 27
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Available now online from Lancet http://www.lancet.com published online August 29, 2010 DOI:10.1016/S0140-6736(10)61198-1
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Acknowledgements 6505 patients from 37 countries 6505 patients from 37 countries 677 centres 677 centres More than 700 investigators and staff More than 700 investigators and staff Study supported by Study supported by Learn more about SHIFT on Monday 30 August during the Clinical Trial Update II (14h13, Stockholm, Zone K)
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