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Design and baseline characteristicsDesign and baseline characteristics
Trial hypothesisTrial hypothesis
Fox K et al. Am Heart J. 2013;166(4):654-661.
SIGNIFY is assessing whether heart SIGNIFY is assessing whether heart
rate reduction using ivabradine rate reduction using ivabradine
improves cardiovascular mortality and improves cardiovascular mortality and
morbidity in patients with stable CAD, morbidity in patients with stable CAD,
without clinical heart failurewithout clinical heart failure
SIGNIFY is assessing whether heart SIGNIFY is assessing whether heart
rate reduction using ivabradine rate reduction using ivabradine
improves cardiovascular mortality and improves cardiovascular mortality and
morbidity in patients with stable CAD, morbidity in patients with stable CAD,
without clinical heart failurewithout clinical heart failure
• Proven stable CAD
• Age >55 years
• Without LVSD (EF >40%, no clinical signs of HF)
• In sinus rhythm, with a resting heart rate >70 bpm
• Receiving appropriate and stable doses of
conventional cardiovascular medication
• With one or more other cardiovascular risk factors
Target populationTarget population
Fox K et al. Am Heart J. 2013;166(4):654-661.
At least ONE major risk factor:
Angina pectoris in CCS class II or higher (≥1 mo); or
Objective evidence of myocardial ischemia with
moderate to large deficit induced by noninvasive stress
testing (≤12 mo) without subsequent revascularization; or
Hospital discharge after coronary event ≤12 mo
(AMI >3 mo or UA >1 mo)
Additional cardiovascular Additional cardiovascular risk factors (1)risk factors (1)
Fox K et al. Am Heart J. 2013;166(4):654-661.
OR at least TWO minor risk factors:
Low HDL-C (<40 mg/dL) and/or high LDL-C (<160
mg/dL) despite lipid-lowering treatment; or
Type 1 or 2 diabetes mellitus; or
Peripheral artery disease; or
Current smoker (≥10 cigarettes/d); or
Age ≥70 years
Additional cardiovascular Additional cardiovascular risk factors (2)risk factors (2)
Fox K et al. Am Heart J. 2013;166(4):654-661.
Fox K et al. Am Heart J. 2013;166(4):654-661.
Multinational studyMultinational study
19 102 patients, 51 19 102 patients, 51 countriescountries, 1139 , 1139 centerscenters
Steering CommitteeSteering Committee
Executive CommitteeExecutive Committee
K. Fox chair, R. Ferrari co-chairK. Fox chair, R. Ferrari co-chair
I. Ford, P.G. Steg, J-C Tardif, M. Tendera I. Ford, P.G. Steg, J-C Tardif, M. Tendera
Executive CommitteeExecutive Committee
K. Fox chair, R. Ferrari co-chairK. Fox chair, R. Ferrari co-chair
I. Ford, P.G. Steg, J-C Tardif, M. Tendera I. Ford, P.G. Steg, J-C Tardif, M. Tendera
R. Ferrari (Chair, Ferrara, Italy)
R. Iglesias (Argentina)
P.A. Zelveian (Armenia)
B. Freedman (Australia)
K. Huber (Austria)
J-L.Vanoverschelde (Belgium)
L.A. Machado Cesar (Brazil)
N. Gotcheva (Bulgaria)
P. L’Allier (Canada)
D.Y. Hu (China)
C.P. Lau (Hong Kong)
M. Bergovec (Croatia)
J. Hradec (Czech Republic)
P. Clemmensen and P. Hildebrandt
(Denmark)
J. Eha (Estonia)
M. Laine (Finland)
N. Danchin (France)
S. Kedev (FYROM)
V. Chumburidze (Georgia)
T. Münzel (Germany)
P. Vardas (Greece)
J. Borbola (Hungary)
R. Kasliwal (India)
P. Crean (Ireland)
L. Tavazzi (Italy)
T.Z. Seisembekov (Kazakhstan)
K.B. Seung (Korea)
A.Erglis (Latvia)
A. Laucevicius (Lithuania)
R. Ali (Malaysia)
E. Alexanderson (Mexico)
D. Atar (Norway)
R. Sy (Philippines)
A. Rynkiewicz (Poland)
R. Seabra-Gomes (Portugal)
C. Macarie (Romania)
V.Y. Mareev and Y.A. Karpov (Russia)
M.C. Ostojic (Serbia)
T.H. Koh (Singapore)
J. Murin (Slovakia)
P. Rakovec (Slovenia)
P. Sareli (South Africa)
C. Macaya (Spain)
M. Dellborg( Sweden)
T. Lüscher (Switzerland)
C.E. Chiang (Taiwan)
P. Sritara (Thailand)
W.H. Van Gilst and J.W.
Jukema (The Netherlands)
O. Ergene (Turkey)
A. Parkhomenko (Ukraine)
A. Hall (UK)
F. Kuster (Uruguay)
N.V. Pham (Vietnam)
Study designStudy design
Ivabradine: starting dose of 7.5 mg bid,
then 5, 7.5, 10 mg bid to reach target heart rate of 60 bpm
Matching placebo, bid
Follow-up visit
every 6 months
M0
Inclusion
Mean follow-up of 2.75 years
Placebo run-in
2 - 4 weeks
M1 M2 M3 M6 M48 or study end
19 102 patients randomized
Selection
A randomized, double-blind, placebo-controlled trial
Fox K et al. Am Heart J. 2013;166(4):654-661.
Study end pointsStudy end points
Cardiovascular death
Nonfatal myocardial infarction
Primary composite end pointPrimary composite end point
Secondary end pointsSecondary end points All-cause death
CV death
Coronary death
Nonfatal MI
Coronary revascularization
Elective coronary revascularization
New-onset or worsening heart failure
Fox K et al. Am Heart J. 2013;166(4):654-661.
Baseline characteristicsBaseline characteristics
n=19 102n=19 102
Age, yearAge, year 6565
<70, %<70, % 7272
≥≥70, %70, % 2828
≥≥75, %75, % 1212
Male, %Male, % 7272
Heart rate, bpmHeart rate, bpm 77.277.2
Systolic BP, mm HgSystolic BP, mm Hg 130.5130.5
Diastolic BP, mm HgDiastolic BP, mm Hg 78.278.2
LVEF, %LVEF, % 56.556.5
Fox K et al. Am Heart J. 2013;166(4):654-661.
Baseline characteristicsBaseline characteristics
n= 19 102n= 19 102
CCS class II to IV, %CCS class II to IV, % 6363
CAD duration, yearCAD duration, year 6.26.2
Previous MI, %Previous MI, % 7373
Previous coronary revascularization, %Previous coronary revascularization, % 6868
Dyslipidemia, %Dyslipidemia, % 7171
Diabetes mellitus, %Diabetes mellitus, % 4343
Peripheral artery disease, %Peripheral artery disease, % 2121
Current smoker, %Current smoker, % 2424
Fox K et al. Am Heart J. 2013;166(4):654-661.
0
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50
60
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80
90
100
Background therapiesBackground therapies
Fox K et al. Am Heart J. 2013;166(4):654-661.
Use of background preventive therapies Use of background preventive therapies in clinical trials and registriesin clinical trials and registries
SubstudiesSubstudies
Fox K et al. Am Heart J. 2013;166(4):654-661.
n Measurements
Quality of life substudy
4500 Seattle Angina Questionnaire in patients with angina pectoris at baseline (CCS class II or higher)
Biomarkers substudy
380 Circulating von Willebrand factor, high-sensitivity troponin T, and other biomarkers of CAD progression and endothelial function, at baseline, and 3 and 12 months
Pharmaco-genomics substudy
5000 Genetic variations in candidate genes and in the whole genome vs clinical outcomes
ConclusionConclusion
Fox K et al. Am Heart J. 2013;166(4):654-661.
Elevated resting heart rate is an important correlate
of outcomes in patients with CAD Heart rate lowering may therefore be expected to
reduce mortality and cardiovascular event rates in
patients with stable CAD SIGNIFY will shed further light on the role of heart
rate lowering with ivabradine in patients with stable
CAD without clinical heart failure The study is expected to end in 2014
Elevated resting heart rate is an important correlate
of outcomes in patients with CAD Heart rate lowering may therefore be expected to
reduce mortality and cardiovascular event rates in
patients with stable CAD SIGNIFY will shed further light on the role of heart
rate lowering with ivabradine in patients with stable
CAD without clinical heart failure The study is expected to end in 2014