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Published on 26 June 2013

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Breakthrough Therapy designation to Novartis’ serelaxin (RLX030) for acute heart failure

Novartis announced today that the US Food and Drug Administration (FDA) has granted Breakthrough Therapy designation status to RLX030 (serelaxin), an investigational treatment for patients with acute heart failure (AHF).

Novartis announced today that the US Food and Drug Administration (FDA) has granted Breakthrough Therapy designation status to RLX030 (serelaxin), an investigational treatment for patients with acute heart failure (AHF). The FDA has concluded that RLX030 qualifies for a Breakthrough Therapy designation after considering the available clinical evidence which supports a substantial improvement over currently available therapies for AHF,[1] a life-threatening illness.
The FDA’s decision was supported by efficacy and safety results from the phase III RELAX-AHF trial, which also showed that patients who received RLX030 had a 37% reduction in mortality at 6 months after an acute heart failure episode compared to those who received conventional treatment.[2]
Each year around 3.5 million AHF episodes happen in the US and EU alone;[3] this is expected to increase further as the population ages. Every AHF episode contributes to a downward spiral of worsening heart failure and damage to vital organs, such as the heart and kidneys, which decreases the chance of the patient surviving another episode.[4] There is an urgent need for new treatments that help relieve patients’ symptoms and protect the vital organs against damage during an AHF episode, as well as have the potential to increase life expectancy in the AHF patient population.
“RLX030 is representative of Novartis’ strong commitment to develop innovative treatments for patients in areas of significant unmet need,” said David Epstein, Division Head of Novartis Pharmaceuticals. “Commonly used medicines for AHF only improve the immediate symptoms, so the additional effect on survival observed with RLX030 offers hope to patients and physicians”.
RLX030 is currently being assessed by health authorities around the world including the FDA and the European Medicines Agency (EMA) for the treatment of AHF.
About RLX030 and Novartis’ commitment to heart failure
RLX030 (serelaxin) is a form of a naturally occurring hormone (human relaxin-2), present in both men and women,[5] although its levels rise in pregnant women to help the body cope with the additional cardiovascular demands during pregnancy.[6] RLX030 is proposed for administration on admission to the emergency room to patients experiencing an AHF episode and is infused over a 48 hour period, in addition to conventional therapies.
In RELAX-AHF, RLX030 was shown to have both short and longer-term effects, helping patients breathe during and after an AHF episode, reducing the rate of heart failure worsening.[2] Data from the clinical trial program has also shown that RLX030’s side effects are comparable to conventional therapy and it was generally well tolerated.[2]
Another Novartis compound called LCZ696, an angiotensin receptor neprilysin inhibitor, is the first in a new class of dual acting drugs being evaluated for the treatment of chronic heart failure. A robust clinical development program including two global phase III studies (PARAGON-HF and PARADIGM-HF) is underway to fully assess the efficacy and safety profile of LCZ696.
References
  1. US Food and Drug Administration. Frequently Asked Questions: Breakthrough Therapies. Available at: http://www.fda.gov/RegulatoryInformation/Legislation/ FederalFoodDrugandCosmeticActFDCAct/ SignificantAmendmentstotheFDCAct/FDASIA/ucm341027.htm. Accessed 17 May 2013.
  2. Teerlink et al. Serelaxin, recombinant human relaxin-2, for treatment of acute heart failure (RELAX-AHF): a randomised, placebo-controlled trial. Lancet, 2013;381:29-39.
  3. Novartis data on file: approximately 1.86 million diagnosed events in the US and 1.6 million in the top 5 EU countries.
  4. Mosterd A, Hoes A. Clinical epidemiology of heart failure. Heart. 2007;93:1137-1146.
  5. Teichman S et al. Relaxin, a pleiotropic vasodilator for the treatment of heart failure. Heart Fail Rev. 2009;14:321-329
  6. Teichman SL et al. Relaxin: Review of biology and potential role in treating heart failure. Curr Heart Fail Rep. 2010;7:75-82.


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