Novartis' new heart failure medicine LCZ696 cut cardiovascular deaths by 20% vs. ACE-inhibitor in landmark PARADIGM-HF trial

NovartisAt the European Society of Cardiology congress and published simultaneously in the New England Journal of Medicine, Novartis revealed that its investigational heart failure medicine, LCZ696, was superior to ACE-inhibitor enalapril on key endpoints in the largest heart failure study ever done[1],[6]. In PARADIGM-HF patients with heart failure with reduced ejection fraction (HF-REF) who were given LCZ696 were more likely to be alive and less likely to have been hospitalized for sudden deterioration of their heart failure than those given ACE-inhibitor enalapril[1]. Patients received LCZ696 or enalapril on top of current best treatment.

The magnitude of benefit with LCZ696 against enalapril in HF-REF patients was highly statistically significant and clinically important. In the study, the benefit of LCZ696 was seen early, was sustained and was consistent across subgroups. LCZ696:[1]

  • reduced the risk of death from cardiovascular causes by 20% (p=0.00004)
  • reduced heart failure hospitalizations by 21% (p=0.00004)
  • reduced the risk of all-cause mortality by 16% (p=0.0005)

Overall there was a 20% risk reduction on the primary endpoint, a composite measure of CV death or heart failure hospitalization (p=0.0000002)[1].

"By demonstrating a very significant reduction in cardiovascular deaths while improving Quality of Life, Novartis' new heart failure medicine, LCZ696, represents one of the most important cardiology advances of the last decade," said David Epstein, Division Head, Novartis Pharmaceuticals. "We want to thank leading cardiologists from around the world for their collaboration with us and their determination in advancing this important new life saving therapy for heart failure patients."

LCZ696, a twice a day tablet being investigated for heart failure, has a unique mode of action which is thought to reduce the strain on the failing heart[6],[7],[8]. It acts to enhance the protective neurohormonal systems of the heart (NP system) while simultaneously suppressing the harmful system (the RAAS)[6],[8]. Currently available medicines for HF-REF work only to block the detrimental effects[6],[8]. Despite existing therapies, the mortality rate remains very high with up to 50% of patients dying within 5 years of a diagnosis of heart failure[9],[10],[11]. Approximately half of patients with heart failure have HF-REF[12].

Analysis of the safety data from PARADIGM-HF showed side effects were manageable in the study[1]. Fewer patients on LCZ696 discontinued study medication for any adverse event compared to those on enalapril (10.7% vs 12.3%, respectively, p=0.03). The LCZ696 group had more hypotension and non-serious angioedema but less renal impairment, hyperkalemia and cough than the enalapril group.

Novartis plans to file the application for marketing authorization with the US FDA by the end of 2014 and in the EU in early 2015.

About the PARADIGM-HF study
PARADIGM-HF is a randomized, double-blind, phase III study evaluating the efficacy and safety profile of LCZ696 versus enalapril (a widely studied ACE inhibitor) in 8,442 patients with HF-REF[6],[13]. The baseline characteristics showed the patients enrolled were typical HF-REF patients with NYHA Class II-IV heart failure. PARADIGM-HF was specifically designed to see if LCZ696 could decrease CV mortality by at least 15% vs. enalapril[6]. Patients received LCZ696 or enalapril in addition to current best treatment regimen. The primary endpoint is a composite of time to first occurrence of either cardiovascular death or heart failure hospitalization, and is the largest heart failure study ever done[6].

Secondary endpoints are change in the clinical summary score for heart failure symptoms and physical limitations (as assessed by Kansas City Cardiomyopathy Questionnaire) at 8 months; time to all-cause mortality; time to new onset atrial fibrillation; and time to occurrence of renal dysfunction[6]. It was initiated in December 2009 and in March 2014 the Data Monitoring Committee confirmed that patients given LCZ696 were significantly less likely to die from CV causes, leading to the trial being stopped early[14]. The DMC also confirmed the primary endpoint had been met.

About LCZ696 in heart failure
LCZ696 is an ARNI (Angiotensin Receptor Neprilysin Inhibitor) and has a unique mode of action which is thought to reduce the strain on the failing heart[6],[8]. It harnesses the body's natural defences against heart failure, simultaneously acting to enhance the levels of natriuretic and other endogenous vasoactive peptides, while also inhibiting the renin-angiotensin-aldosterone system (RAAS).

Heart failure is a debilitating and potentially life-threatening disease in which the heart cannot pump enough blood around the body. Symptoms such as breathlessness, fatigue and fluid retention can appear slowly and worsen over time, significantly impacting quality of life[4],[15].

It is a significant and growing public health concern with a high unmet need for new treatments. Every year, HF costs the world economy $108 billion[16], and hospitalizations comprise 60-70% of treatment costs[17],[18].

About Novartis
Novartis provides innovative healthcare solutions that address the evolving needs of patients and societies. Headquartered in Basel, Switzerland, Novartis offers a diversified portfolio to best meet these needs: innovative medicines, eye care, cost-saving generic pharmaceuticals, preventive vaccines, over-the-counter and animal health products. Novartis is the only global company with leading positions in these areas. In 2013, the Group achieved net sales of USD 57.9 billion, while R&D throughout the Group amounted to approximately USD 9.9 billion (USD 9.6 billion excluding impairment and amortization charges). Novartis Group companies employ approximately 135,000 full-time-equivalent associates and sell products in more than 150 countries around the world.

1. McMurray JJV et al. Angiotensin-Neprilysin Inhibition versus Enalapril in Heart Failure, N Engl J Med 2014; DOI: 10.1056/NEJMoa1409077
2. Effect of ACE inhibitor vs placebo derived from SOLVD-Treatment trial, that showed enalapril reduced risk of death by 16% vs placebo; Effect of LCZ696 vs ACE inhibitor derived from PARADIGM-HF trial.
3. Ambrosy AP et al. J Am Coll Cardiol 2014;63:1123-33. doi: 10.1016/j.jacc.2013.11.053
4. Gheorghiade M, Pang P, Acute heart failure syndromes, Journal of the American College of Cardiology 2009; 53 (7):557-73
5. Harrison's 'Principles of Internal Medicine', Seventeenth Edition pages 1442 - 1455
6. McMurray JJ, Packer M, Desai AS, et al. Dual angiotensin receptor and neprilysin inhibition as an alternative to angiotensin-converting enzyme inhibition in patients with chronic systolic heart failure: rationale for and design of the Prospective comparison of ARNI with ACEI to Determine Impact on Global Mortality and morbidity in Heart Failure trial (PARADIGM-HF). Eur J Heart Fail 2013;15,1062-1073 (doi:10.1093/eurjhf/hft052)
7. Langenickel TH et al. Angiotensin receptor-neprilysin inhibition with LCZ696: a novel approach for the treatment of heart failure. Drug Discovery Today: Therapeutic Strategies.2012, Vol 9. No.4
8. Solomon SD et al. The angiotensin receptor neprilysin inhibitor LCZ696 in heart failure with preserved ejection fraction: a phase 2 double-blind randomised controlled trial. Lancet. 2012;380:1387-95
9. Lloyd-Jones et al. Heart disease and stroke statistics--2010 update: a report from the American Heart Association. Circulation. 2010;121:e46-215
10. Zannad F. et al, Heart failure burden and therapy, Europace 2009, 11; v1-v9.
11. Loehr LR, Rosamond WD, Chang PP, Folsom AR, Chambless LE. Heart failure incidence and survival (from the Atherosclerosis Risk in Communities study). Am J Cardiol. 2008;101(7):1016
12. Doughty R.N., The survival of patients with heart failure with preserved or reduced left ventricular ejection fraction: an individual patient data meta-analysis, European Heart Journal (2012);33(14):1750-1757
13. Clincaltrials.gov, NCT01035255 last accessed online 19 March 2014
14. Novartis press release 'PARADIGM-HF trial of Novartis' LCZ696 for chronic heart failure stopped early based on strength of interim results' issued on March 31, 2014
15. Mosterd A, Hoes, A, Clinical epidemiology of heart failure, Heart 2007;93:1137
16. Cook C, Cole G, Asaria P, Jabbour R, Francis DP. The annual global economic burden of heart failure. Int J Cardiol. 2014.;171(3):368-76
17. Neumann T, Biermann J, Erbel R, Neumann A, Wasem J, Ertl G, et al.,. Heart failure: the commonest reason for hospital admission in Germany: medical and economic perspectives. Dtsch Arztebl Int. 2009;106:269-75.
18. Stewart S, Jenkins A, Buchan S, McGuire A, Capewell S, McMurray JJ. The current cost of heart failure to the National Health Service in the UK. Eur J Heart Fail. 2002 Jun;4(3):36-71.

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