Amgen (AMGN) Receives Positive CHMP Opinion To Expand Use Of Nplate®

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Amgen Receives Positive CHMP Opinion To Expand Use Of Nplate® (romiplostim) In Pediatric Patients With Chronic Immune Thrombocytopenic Purpura

Positive Opinion Based on Five Studies Demonstrating Nplate Reduces Rates of Bleeding in Children With Rare Blood Disorder

Amgen (AMGN) today announced that the Committee for Medicinal Products for Human Use (CHMP) of the European Medicines Agency (EMA) has adopted a positive opinion to expand the current indication for Nplate® (romiplostim) to include the treatment of chronic immune (idiopathic) thrombocytopenic purpura (ITP) for patients one year of age and older who are refractory to other treatments (e.g., corticosteroids, immunoglobulins).

The positive CHMP opinion was based on five studies evaluating the safety and efficacy of Nplate in children with ITP, including four completed studies (a Phase 3, a Phase 1/2 placebo-controlled study, and two long-term safety and efficacy studies) and one ongoing long-term safety and efficacy study.

“Children with ITP are at risk for serious bleeding events due to low platelet counts, and currently, limited therapeutic options are available to treat this rare disease,” said Sean E. Harper, M.D., executive vice president of Research and Development at Amgen. “We are pleased by today’s positive CHMP opinion and look forward to working with European regulatory authorities to deliver on our commitment to bring Nplate to pediatric patients with ITP who are suffering from thrombocytopenia.”

ITP is a rare, serious autoimmune disease characterized by low platelet counts in the blood (a condition known as thrombocytopenia) and impaired platelet production.1,2 European studies report incidence rates in children between four and five cases per 100,000 children each year.3 The treatment goal for children with ITP is to promote a platelet count that maintains appropriate control of bleeding, improve symptoms and increase the number of platelets.1,4

The CHMP positive opinion will now be reviewed by the European Commission (EC), which has the authority to approve medicines for the European Union (EU). If approved, a centralized marketing authorization will be granted that will be valid in the 28 countries that are members of the EU. Norway, Iceland and Liechtenstein, as members of the European Economic Area (EEA), will take corresponding decisions on the basis of the decision of the EC.

About Nplate® (romiplostim)

Nplate is a thrombopoietin (TPO) receptor agonist indicated for the treatment of low blood platelet counts in adults with chronic ITP, who had an insufficient response to other medicines or surgery. Nplate mimics the body’s natural thrombopoietin and is designed to increase platelet counts in patients with chronic ITP.5

Nplate is the first U.S. Food and Drug Administration (FDA)-approved treatment specifically for adult chronic ITP.

In the U.S., Nplate is indicated for the treatment of thrombocytopenia in patients with chronic ITP who have had an insufficient response to corticosteroids, immunoglobulins or splenectomy. Nplate is not indicated for the treatment of thrombocytopenia due to myelodysplastic syndrome (MDS) or any cause of thrombocytopenia other than chronic ITP. Nplate should be used only in patients with ITP whose degree of thrombocytopenia and clinical condition increase the risk for bleeding. Nplate should not be used in an attempt to normalize platelet counts.

In the EU, Nplate is indicated for the treatment of adult chronic ITP patients who are refractory to other treatments (e.g., corticosteroids, immunoglobulins).

Nplate was named as a recipient of the U.S. Prix Galien 2009 “Best Biotechnology Product” award and also received the 2009 Scrip Awards for “Best New Drug.” Nplate has also been honored with numerous awards throughout the EU, including a 2010 Prix Galien in France in the category of “Drugs for Rare Diseases,” and the 2011 Prix Galien in Germany in the category of “Specialist Care.” In September 2010, Nplate was awarded the 2010 International Prix Galien Award, an award granted every two years which recognizes the “Best of the Best” selected from previous national Prix Galien award recipients.

Nplate is also approved in CanadaAustraliaRussiaMexicoSwitzerland, Lichtenstein, JapanArgentinaIsraelSouth KoreaHong KongChile, Serbia, KazakhstanMalaysiaSingaporeColombiaKuwaitTaiwanSouth AfricaBrazilGuatemalaMoroccoEcuadorMacauEgyptLebanonPeru and Venezuela. Nplate has received orphan designation for chronic ITP in the U.S. (2003), the EU (2005), Switzerland (2005), Japan(2006), Mexico and South Korea (2010).

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