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Actelion Ltd.. (1/31/13). "Press Release: Actelion Launches Opsumit in Germany". Allschwil.

Region Region Germany
Organisations Organisation Actelion Ltd. (SIX: ATLN)
  Group Johnson & Johnson (JnJ) (Group)
  Organisation 2 University Hospital Gießen
  Group University of Gießen (Justus Liebig University)
Products Product Opsumit®
  Product 2 clinical research
Person Person Schwarz, Otto (Actelion 201106– COO before Head Business Strategy + Operations since 2008)
     


Actelion Ltd (SIX: ATLN) announced today that following approval by the EU Commission, Opsumit® is available for prescribers in Germany from 1 February 2014.

Opsumit (macitentan) was granted marketing authorisation by the European Commission for the long term treatment of pulmonary arterial hypertension (PAH) in the EU on 20th December 2013. Opsumit is indicated as monotherapy or in combination, for the long term treatment of PAH in adult patients of WHO Functional Class (FC) II to III.

Efficacy has been shown in a PAH population including idiopathic and heritable PAH, PAH associated with connective tissue disorders, and PAH associated with corrected simple congenital heart disease.

Prof. Dr. med Ardeshir Ghofrani, University Hospital Giessen commented: "In SERAPHIIN, the long-term Phase III study in PAH, macitentan significantly reduced the risk of the composite morbidity-mortality endpoint when compared to placebo in both treatment-naïve patients and those on background therapy for PAH."

In the SERAPHIN study, treatment with macitentan 10 mg resulted in a 45% risk reduction (hazard ratio [HR] 0.55; 97.5% CI: 0.39 to 0.76; logrank p < 0.0001) of the composite morbidity-mortality endpoint when compared to placebo. In patients already on background therapy for PAH treatment with macitentan 10 mg resulted in a 38% risk reduction (HR 0.62; 95% CI: 0.43 to 0.89; logrank p=0.0094) of the composite morbidity-mortality endpoint compared to placebo.

Macitentan 10 mg is also described as reducing the risk of PAH related death or hospitalization for PAH up to end of treatment (EOT) by 50% (HR 0.50; 97.5% CI: 0.34 to 0.75; logrank p<0.0001). Macitentan 10 mg improved quality of life assessed by the SF36 questionnaire.

Otto Schwarz, Chief Operating Officer of Actelion commented: "Following the very positive introduction of Opsumit into the US market, I am very pleased to announce that Opsumit is going to be available to patients in Germany, the largest European Market."

The most commonly reported adverse drug reactions with Opsumit are nasopharyngitis (14.0%), headache (13.6%) and anaemia (13.2%). The majority of adverse reactions are mild to moderate in intensity.


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NOTES TO THE EDITOR

ABOUT OPSUMIT® (MACITENTAN)

Opsumit (macitentan) is a novel dual endothelin receptor antagonist (ERA) that resulted from a tailored drug discovery process with the target of developing an ERA to address efficacy and safety [2,3].

ABOUT THE SERAPHIN STUDY

SERAPHIN (Study with an Endothelin Receptor Antagonist in Pulmonary arterial Hypertension to Improve cliNical outcome) was the largest and longest randomized, controlled study in PAH patients to include a clearly defined morbidity/mortality primary endpoint [1]. The pivotal Phase III study was designed to evaluate the efficacy and safety of Opsumit (macitentan) - a novel dual endothelin receptor antagonist that resulted from a tailored drug discovery process - through the primary endpoint of time to first morbidity and all-cause mortality event in patients with symptomatic PAH.

Global enrolment was completed in December 2009 with a total of 742 patients. Patients were randomized 1:1:1 to receive two different doses of macitentan (3 mg and 10 mg once daily) or placebo. Patients were allowed to receive PAH background therapy throughout the study, either PDE-5 inhibitors or oral/inhaled prostanoids. This event-driven study was conducted in 151 centers from almost 40 countries in North America, Latin America, Europe, Asia-Pacific and Africa and was completed in the first half of 2012, with 287 patients having an adjudicated event.

ABOUT SERAPHIN STUDY DATA

Patients were randomized to placebo (n=250), macitentan 3 mg (n=250), or macitentan 10 mg (n=242). The primary end point occurred in 46.4%, 38.0%, and 31.4% of the patients in these groups, respectively. The hazard ratio for macitentan 3 mg versus placebo was 0.70 (97.5% CI, 0.52 to 0.96; p=0.0108) and the hazard ratio for macitentan 10 mg versus placebo was 0.55 (97.5% CI, 0.39 to 0.76; p<0.0001). Worsening of pulmonary arterial hypertension was the most frequent primary end point event. The effect of macitentan on this end point was observed irrespective of background therapy for pulmonary arterial hypertension. [3]

ABOUT THE SAFETY AND TOLERABILITY PROFILE

The most commonly reported adverse drug reactions with Opsumit are nasopharyngitis (14.0%), headache (13.6%) and anaemia (13.2%). The majority of adverse reactions are mild to moderate in intensity.

ABOUT OPSUMIT (MACITENTAN) SUBMISSIONS TO HEALTHCARE AUTHORITIES

Approval of the new drug application for Opsumit (macitentan) was issued by the US Food and Drug Administration (FDA) on 18 October 2013 for the treatment of pulmonary arterial hypertension (PAH, WHO Group I) to delay disease progression. Disease progression included: death, initiation of intravenous (IV) or subcutaneous prostanoids, or clinical worsening of PAH (decreased 6-minute walk distance, worsened PAH symptoms and need for additional PAH treatment). Opsumit also reduced hospitalization for PAH.

Health Canada approved Opsumit for the long-term treatment of pulmonary arterial hypertension (PAH, WHO Group l) to reduce morbidity in patients of WHO Functional Class II or III whose PAH is either idiopathic or heritable, or associated with connective tissue disease or congenital heart disease in November 2013.

Regulatory reviews are ongoing in Switzerland, Australia, Taiwan, Mexico, Korea and Israel.

ABOUT PULMONARY ARTERIAL HYPERTENSION [4, 5, 6]

Pulmonary arterial hypertension (PAH) is a chronic, life-threatening disorder characterized by abnormally high blood pressure in the arteries between the heart and lungs of an affected individual. The symptoms of PAH are non-specific and can range from mild breathlessness and fatigue during normal daily activity to symptoms of right heart failure and severe restrictions on exercise capacity and ultimately reduced life expectancy.

PAH is one group within the classification of pulmonary hypertension (PH). This group includes idiopathic PAH, heritable PAH and PAH caused by factors which include connective tissue disease, HIV infection and congenital heart disease.

The last decade has seen significant advances in the understanding of the pathophysiology of PAH, which has been paralleled with developments of treatment guidelines and new therapies. Drugs targeting the three pathways that have been established in the pathogenesis of PAH are endothelin receptor antagonists (ERAs), prostacyclins and phosphodiesterase-5 inhibitors. PAH treatments have transformed the prognosis for PAH patients from symptomatic improvements in exercise tolerance 10 years ago to delayed disease progression today. Improved disease awareness and evidence-based guidelines developed from randomized controlled clinical trial data have highlighted the need for early intervention, goal-oriented treatment and combination therapy.

In PAH, survival rates are unacceptably low and PAH remains incurable.


References

1. Pulido T et al. Macitentan and Morbidity and Mortality in Pulmonary Arterial Hypertension. N Engl J Med 2013;369:809-18.

2 .Bolli MH et al. The Discovery of N-[5-(4-Bromophenyl)-6-[2-[(5-bromo-2-pyrimidinyl)oxy]ethoxy]-4-pyrimidinyl]-N'-propylsulfamide (Macitentan), an Orally Active, Potent Dual Endothelin Receptor Antagonist. J Med Chem. 2012; 55:7849-61.

3. Iglarz M. et al. Pharmacology of macitentan, an orally active tissue targeting dual endothelin receptor antagonist. J Pharmacol Exp Ther. 2008;327(3):736-745.

4. Proceedings of the 4th world symposium on pulmonary hypertension. J Am CollCardiol 2009;54(1 Suppl).

5. Galiè N, Hoeper MM, Humbert M, et al; ESC Committee for Practice Guidelines (CPG). Guidelines for the diagnosis and treatment of pulmonary hypertension: the Task Force for the Diagnosis and Treatment of Pulmonary Hypertension of the European Society of Cardiology (ESC) and the European Respiratory Society (ERS), endorsed by the International Society of Heart and Lung Transplantation (ISHLT). Eur Heart J 2009;30:2493-537.

6. Benza RL, Miller DP, Barst RJ, Badesch DB, Frost AE, McGoon MD. An evaluation of long-term survival from time of diagnosis in pulmonary arterial hypertension from REVEAL. Chest 2012;142:448-56.


Actelion Ltd.

Actelion Ltd. is a leading biopharmaceutical company focused on the discovery, development and commercialization of innovative drugs for diseases with significant unmet medical needs.

Actelion is a leader in the field of pulmonary arterial hypertension (PAH). Our portfolio of PAH treatments covers the spectrum of disease, from WHO Functional Class (FC) II through to FC IV, with oral, inhaled and intravenous medications. Although not available in all countries, Actelion has treatments approved by health authorities for a number of specialist diseases including Type 1 Gaucher disease, Niemann-Pick type C disease, Digital Ulcers in patients suffering from systemic sclerosis, and mycosis fungoides in patients with cutaneous T-cell lymphoma.

Founded in late 1997, with now over 2,400 dedicated professionals covering all key markets around the world including the US, Japan, China, Russia and Mexico, Actelion has its corporate headquarters in Allschwil / Basel, Switzerland.

Actelion shares are traded on the SIX Swiss Exchange (ticker symbol: ATLN) as part of the Swiss blue-chip index SMI (Swiss Market Index SMI®). All trademarks are legally protected.


For further information please contact:

Roland Haefeli
Senior Vice President, Head of Investor Relations & Public Affairs
Actelion Pharmaceuticals Ltd, Gewerbestrasse 16, CH-4123 Allschwil
+41 61 565 62 62
+1 650 624 69 36
www.actelion.com

The above information contains certain "forward-looking statements", relating to the company's business, which can be identified by the use of forward-looking terminology such as "estimates", "believes", "expects", "may", "are expected to", "will", "will continue", "should", "would be", "seeks", "pending" or "anticipates" or similar expressions, or by discussions of strategy, plans or intentions. Such statements include descriptions of the company's investment and research and development programs and anticipated expenditures in connection therewith, descriptions of new products expected to be introduced by the company and anticipated customer demand for such products and products in the company's existing portfolio. Such statements reflect the current views of the company with respect to future events and are subject to certain risks, uncertainties and assumptions. Many factors could cause the actual results, performance or achievements of the company to be materially different from any future results, performances or achievements that may be expressed or implied by such forward-looking statements. Should one or more of these risks or uncertainties materialize, or should underlying assumptions prove incorrect, actual results may vary materially from those described herein as anticipated, believed, estimated or expected.

   
Record changed: 2017-04-02

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