satish k surabhi , md.facc,fscai,rpvi medical director ... · satish k surabhi ,...
TRANSCRIPT
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Satish K Surabhi, MD.FACC,FSCAI,RPVI
Medical Director, Cardiac Cath LabsAnMed Health Heart & Vascular Care
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None
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Fig. 1. Progression of Heart Failure.With each hospitalization for acute heart failure, there is substantial myocardial and/or renal damage leading to an overall decline in function.
Progress in Cardiovascular Diseases, 2016, Available online 5 January 2016
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Myocardial or vascularstress or injury
Evolution and progressionof heart failure
Mechanisms of Progression in Heart Failure
Increased activity or response to maladaptive
mechanisms
Decreased activity or response to adaptive
mechanisms
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Betablocker
Mineralocorticoidreceptor
antagonist
Drugs That Reduce Mortality in Heart Failure With Reduced Ejection Fraction
ACEinhibitor
Angiotensinreceptorblocker
Drugs that inhibit the renin-angiotensin system have modest effects on
survival
Based on results of SOLVD-Treatment, CHARM-Alternative,COPERNICUS, MERIT-HF, CIBIS II, RALES and EMPHASIS-HF
10%
20%
30%
40%
0%
% D
ecre
ase
in M
orta
lity
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One Enzyme — Neprilysin — DegradesMany Endogenous Vasoactive Peptides
Endogenousvasoactive peptides
(natriuretic peptides, adrenomedullin,bradykinin, substance P,
calcitonin gene-related peptide)
Inactive metabolites
Neprilysin
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Neprilysin Inhibition Potentiates Actions of Endogenous Vasoactive Peptides That Counter
Maladaptive Mechanisms in Heart Failure
Endogenousvasoactive peptides
(natriuretic peptides, adrenomedullin,bradykinin, substance P,
calcitonin gene-related peptide)
Inactive metabolites
Neurohormonal activation
Vascular toneCardiac fibrosis,
hypertrophySodium retention
Neprilysin Neprilysininhibition
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Myocardial or vascularstress or injury
Evolution and progressionof heart failure
Mechanisms of Progression in Heart Failure
Angiotensinreceptor blocker
Inhibition of neprilysin
Increased activity or response to maladaptive
mechanisms
Decreased activity or response to adaptive
mechanisms
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LCZ696
LCZ696: Angiotensin Receptor Neprilysin Inhibition
Angiotensinreceptor blocker
Inhibition of neprilysin
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A Comparison of Angiotensin Receptor-Neprilysin Inhibition (ARNI) With ACE Inhibition
in the Long-Term Treatment of Chronic Heart Failure With a Reduced Ejection Fraction
Milton Packer, John J.V. McMurray, Akshay S. Desai, Jianjian Gong, Martin P. Lefkowitz, Adel R. Rizkala, Jean L. Rouleau,
Victor C. Shi, Scott D. Solomon, Karl Swedberg and Michael R. Zile for the PARADIGM-HF Investigators and Committees
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Betablocker
Mineralocorticoidreceptor
antagonist
Drugs That Reduce Mortality in Heart Failure With Reduced Ejection Fraction
ACEinhibitor
Angiotensinreceptorblocker
Drugs that inhibit the renin-angiotensin system have modest effects on
survival
Based on results of SOLVD-Treatment, CHARM-Alternative,COPERNICUS, MERIT-HF, CIBIS II, RALES and EMPHASIS-HF
10%
20%
30%
40%
0%
% D
ecre
ase
in M
orta
lity
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Prospective comparison of ARNI with ACEI to Determine Impact on Global Mortality and
morbidity in Heart Failure trial (PARADIGM-HF)
SPECIFICALLY DESIGNED TO REPLACE CURRENT USEOF ACE INHIBITORS AND ANGIOTENSIN RECEPTOR
BLOCKERS AS THE CORNERSTONE OF THETREATMENT OF HEART FAILURE
Aim of the PARADIGM-HF Trial
LCZ696400 mg daily
Enalapril20 mg daily
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• NYHA class II-IV heart failure
• LV ejection fraction ≤ 40% 35%
• BNP ≥ 150 (or NT-proBNP ≥ 600), but one-third lower if hospitalized for heart failure within 12 months
• Any use of ACE inhibitor or ARB, but able to tolerate stable dose equivalent to at least enalapril 10 mg daily for at least 4 weeks
• Guideline-recommended use of beta-blockers and mineralocorticoid receptor antagonists
• Systolic BP ≥ 95 mm Hg, eGFR ≥ 30 ml/min/1.73 m2 and serum K ≤ 5.4 mEq/L at randomization
PARADIGM-HF: Entry Criteria
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2 weeks 1-2 weeks 2-4 weeks
Single-blind run-in period Double-blind period
(1:1 randomization)
Enalapril
10 mgBID
100 mgBID
200 mgBID
Enalapril 10 mg BID
LCZ696 200 mg BID
PARADIGM-HF: Study Design
Randomization
LCZ696
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PARADIGM-HF Was Designed to Show Incremental Effect on Cardiovascular
Death
The sample size of the trial was determined by effect on cardiovascular mortality, not the primary endpoint
The Data Monitoring Committee was allowed to stop the trial only for a compelling effect on cardiovascular
mortality (in addition to the primary endpoint)Difference in cardiovascular mortality of 15% between
LCZ696 and enalapril was prospectively identified as being clinically important (n=8000 yielded 80% power)
Primary endpoint was cardiovascular death or hospitalization for heart failure, but PARADIGM-HF was designed as a cardiovascular mortality
trial
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All-cause mortality
• Change from baseline in the clinical summary score of the Kansas City CardiomyopathyQuestionnaire at 8 months
• Time to new onset of atrial fibrillation
• Time to first occurrence of a protocol-defined decline in renal function
PARADIGM-HF: Secondary Endpoints
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NationalLeaders
Endpoint and AngioedemaAdjudication
S. Solomon (US)A. Desai (US)
A. Kaplan (US)N. Brown (US)B. Zuraw (US)
NovartisOperations
Data Monitoring Committee
H. Dargie (UK), chairR. Foley (US)
G. Francis (US)M Komajda (FR)S. Pocock (UK)
Investigative Sites
Executive Committee
J. McMurray (UK), co-chairM. Packer (US), co-chair
J. Rouleau (CA)S. Solomon (US)
K. Swedberg (SW) M. Zile (US)
PARADIGM-HF: Study Organization
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10,521 patients screened at1043 centers in 47 countries
Did not fulfill criteriafor randomization
(n=2079)
Randomized erroneously or at sites closed due to GCP violations (n=43)
8399 patients randomized for ITT analysis
LCZ696 (n=4187)
At last visit375 mg daily
11 lost to follow-up
Enalapril (n=4212)
At last visit18.9 mg daily
9 lost to follow-up
median 27 monthsof follow-up
PARADIGM-HF: Patient Disposition
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LCZ696(n=4187)
Enalapril(n=4212)
Age (years) 63.8 ± 11.5 63.8 ± 11.3Women (%) 21.0% 22.6%Ischemic cardiomyopathy (%) 59.9% 60.1%LV ejection fraction (%) 29.6 ± 6.1 29.4 ± 6.3NYHA functional class II / III (%) 71.6% / 23.1% 69.4% / 24.9%Systolic blood pressure (mm Hg) 122 ± 15 121 ± 15Heart rate (beats/min) 72 ± 12 73 ± 12N-terminal pro-BNP (pg/ml) 1631 (885-3154) 1594 (886-3305)B-type natriuretic peptide (pg/ml) 255 (155-474) 251 (153-465)History of diabetes 35% 35%Digitalis 29.3% 31.2%Beta-adrenergic blockers 93.1% 92.9%Mineralocorticoid antagonists 54.2% 57.0%ICD and/or CRT 16.5% 16.3%
PARADIGM-HF: Baseline Characteristics
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(all comparisons are versusenalapril 20 mg daily, not versus placebo)
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0
16
32
40
24
8
Enalapril(n=4212)
360 720 10800 180 540 900 1260Days After Randomization
PARADIGM-HF: Cardiovascular Death or Heart Failure Hospitalization (Primary
Endpoint)
41874212
39223883
36633579
30182922
22572123
15441488
896853
249236
LCZ696Enalapril
Patients at Risk
1117
Kap
lan-
Mei
er E
stim
ate
ofC
umul
ativ
e R
ates
(%)
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0
16
32
40
24
8
Enalapril(n=4212)
360 720 10800 180 540 900 1260Days After Randomization
41874212
39223883
36633579
30182922
22572123
15441488
896853
249236
LCZ696Enalapril
Patients at Risk
1117
Kap
lan-
Mei
er E
stim
ate
ofC
umul
ativ
e R
ates
(%)
914
LCZ696(n=4187)
PARADIGM-HF: Cardiovascular Death or Heart Failure Hospitalization (Primary
Endpoint)
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0
16
32
40
24
8
Enalapril(n=4212)
360 720 10800 180 540 900 1260Days After Randomization
41874212
39223883
36633579
30182922
22572123
15441488
896853
249236
LCZ696Enalapril
Patients at Risk
1117
Kap
lan-
Mei
er E
stim
ate
ofC
umul
ativ
e R
ates
(%)
914
LCZ696(n=4187)
HR = 0.80 (0.73-0.87)P = 0.0000002
Number needed to treat = 21
PARADIGM-HF: Cardiovascular Death or Heart Failure Hospitalization (Primary
Endpoint)
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Enalapril(n=4212)
Kap
lan-
Mei
er E
stim
ate
ofC
umul
ativ
e R
ates
(%)
Days After Randomization
PARADIGM-HF: Cardiovascular Death
41874212
40564051
38913860
32823231
24782410
17161726
1005994
280279
LCZ696Enalapril
Patients at Risk
360 720 10800 180 540 900 12600
16
32
24
8
693
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Enalapril(n=4212)
LCZ696(n=4187)
Kap
lan-
Mei
er E
stim
ate
ofC
umul
ativ
e R
ates
(%)
Days After Randomization
41874212
40564051
38913860
32823231
24782410
17161726
1005994
280279
LCZ696Enalapril
Patients at Risk
360 720 10800 180 540 900 12600
16
32
24
8
693
558
PARADIGM-HF: Cardiovascular Death
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Enalapril(n=4212)
LCZ696(n=4187)
HR = 0.80 (0.71-0.89)P = 0.00004
Number need to treat = 32
Kap
lan-
Mei
er E
stim
ate
ofC
umul
ativ
e R
ates
(%)
Days After Randomization
41874212
40564051
38913860
32823231
24782410
17161726
1005994
280279
LCZ696Enalapril
Patients at Risk
360 720 10800 180 540 900 12600
16
32
24
8
693
558
PARADIGM-HF: Cardiovascular Death
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LCZ696(n=4187)
Enalapril(n=4212)
Hazard Ratio
(95% CI)
PValue
Primary endpoint
914(21.8%)
1117(26.5%)
0.80(0.73-0.87) 0.0000002
Cardiovascular death
558(13.3%)
693(16.5%)
0.80(0.71-0.89) 0.00004
Hospitalization for heart failure
537(12.8%)
658(15.6%)
0.79(0.71- 0.89) 0.00004
PARADIGM-HF: Effect of LCZ696 vs Enalapril on Primary Endpoint and Its
Components
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LCZ696 vs Enalapril on Primary Endpoint and on Cardiovascular Death,
by SubgroupsPrimaryendpoint
Cardiovasculardeath
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PARADIGM-HF: All-Cause Mortality
41874212
40564051
38913860
32823231
24782410
17161726
1005994
280279
LCZ696Enalapril
Enalapril(n=4212)
LCZ696(n=4187)
HR = 0.84 (0.76-0.93)P<0.0001
Kap
lan-
Mei
er E
stim
ate
ofC
umul
ativ
e R
ates
(%)
Days After RandomizationPatients at Risk
360 720 10800 180 540 900 12600
16
32
24
8
835
711
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LCZ696(n=4187)
Enalapril(n=4212)
Treatmenteffect
PValue
KCCQ clinical summary score
at 8 months– 2.99± 0.36
– 4.63± 0.36
1.64(0.63, 2.65) 0.001
New onsetatrial fibrillation
84/2670(3.2%)
83/2638(3.2%)
Hazard ratio0.97
(0.72,1.31)0.84
Protocol-defined decline in renal
function94/4187(2.3%)
108/4212(2.6%)
Hazard ratio0.86
(0.65, 1.13)0.28
PARADIGM-HF: Effect of LCZ696 vs Enalapril on Secondary Endpoints
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LCZ696(n=4187)
Enalapril(n=4212)
PValue
Prospectively identified adverse events
Serum potassium > 6.0 mmol/l 181 236 0.007Serum creatinine ≥ 2.5 mg/dl 139 188 0.007Cough 474 601 < 0.001
Discontinuation for adverse event 449 516 0.02
Discontinuation for hyperkalemia 11 15 NSDiscontinuation for renal impairment 29 59 0.001
PARADIGM-HF: Adverse Events
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LCZ696(n=4187)
Enalapril(n=4212)
PValue
Prospectively identified adverse eventsSymptomatic hypotension 588 388 < 0.001Serum potassium > 6.0 mmol/l 181 236 0.007Serum creatinine ≥ 2.5 mg/dl 139 188 0.007Cough 474 601 < 0.001
Discontinuation for adverse event 449 516 0.02Discontinuation for hypotension 36 29 NSDiscontinuation for hyperkalemia 11 15 NSDiscontinuation for renal impairment 29 59 0.001
Angioedema (adjudicated)Medications, no hospitalization 16 9 NSHospitalized; no airway compromise 3 1 NSAirway compromise 0 0 ----
PARADIGM-HF: Adverse Events
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In heart failure with reduced ejection fraction, when compared with recommended doses of enalapril:LCZ696 was more effective than enalapril in . . .• Reducing the risk of CV death and HF hospitalization• Reducing the risk of CV death by incremental 20%• Reducing the risk of HF hospitalization by incremental 21%• Reducing all-cause mortality by incremental 16%• Incrementally improving symptoms and physical limitationsLCZ696 was better tolerated than enalapril . . .• Less likely to cause cough, hyperkalemia or renal impairment• Less likely to be discontinued due to an adverse event• More hypotension, but no increase in discontinuations• Not more likely to cause serious angioedema
PARADIGM-HF: Summary of Findings
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10%
Angiotensin Neprilysin Inhibition With LCZ696 Doubles Effect on Cardiovascular Death of Current Inhibitors of the Renin-Angiotensin
System
20%
30%
40%
ACEinhibitor
Angiotensinreceptorblocker
0%
% D
ecre
ase
in M
orta
lity
18%
20%
Effect of ARB vs placebo derived from CHARM-Alternative trialEffect of ACE inhibitor vs placebo derived from SOLVD-Treatment trial
Effect of LCZ696 vs ACE inhibitor derived from PARADIGM-HF trial
Angiotensinneprilysininhibition
15%
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