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THOUSAND OAKS, Calif., July 1, 2014 /PRNewswire/ -- Amgen (NASDAQ:AMGN) today announced that the U.S. Food and Drug Administration (FDA) has granted Breakthrough Therapy Designation to investigational bispecific T cell engager (BiTE®) antibody blinatumomab, for adults with Philadelphia-negative (Ph-) relapsed/refractory B-precursor acute lymphoblastic leukemia (ALL), a rapidly progressing cancer of the blood and bone marrow1.
The Breakthrough Therapy Designation was based on the results of a Phase 2 trial of 189 adult patients with Ph- relapsed/refractory B-precursor ALL treated with blinatumomab. Data from the Phase 2 trial were most recently presented at the 50th Annual Meeting of the American Society of Clinical Oncology (ASCO) and the 19th Congress of the European Hematology Association (EHA).
"There is a high unmet need for new medicines to treat relapsed and refractory ALL patients, who have very few treatment options," said Sean E. Harper, M.D., executive vice president of Research and Development at Amgen. "The results from the Phase 2 trial evaluating blinatumomab in adult patients with relapsed or refractory ALL are encouraging and provide a strong basis for a regulatory filing later this year and potential approval in this serious disease."
The FDA states that Breakthrough Therapy Designation is intended to expedite the development and review of drugs for serious or life-threatening conditions. The criteria for Breakthrough Therapy Designation require preliminary clinical evidence that demonstrates the drug may have substantial improvement on at least one clinically significant endpoint over available therapy. A Breakthrough Therapy Designation conveys all of the fast-track program features, more intensive FDA guidance on an efficient drug development program, an organizational commitment involving senior managers, and eligibility for rolling review and priority review2.
In the U.S. alone, it is estimated that over 6,000 cases of ALL were diagnosed in 2013, and in the European Union, more than 7,000 cases of ALL are diagnosed each year3,4. In adult patients with relapsed or refractory ALL, median overall survival is just three to five months5.
About BiTE® Technology
Bispecific T cell engager (BiTE®) antibodies are a type of immunotherapy being investigated for use in fighting cancer by helping to engage the body's immune system to detect and target malignant cells. The modified antibodies are designed to engage two different targets simultaneously, thereby juxtaposing T cells (a type of white blood cell capable of killing other cells perceived as threats) to cancer cells. BiTE antibodies help place the T cells within reach of the targeted cell, with the intent of allowing it to inject toxins and trigger the cell to die (apoptosis). BiTE antibodies are currently being investigated for their potential to treat a wide variety of cancers. For more information on BiTE antibodies, visit www.biteantibodies.com.
Blinatumomab is an investigational BiTE® antibody designed to direct the body's cell-destroying T cells against target cells expressing CD19, a protein found on the surface of B-cell derived leukemias and lymphomas. Blinatumomab is the first of the BiTE antibodies and Amgen has received orphan drug designation from the FDA for the treatment of ALL, chronic lymphocytic leukemia (CLL), hairy cell leukemia, prolymphocytic leukemia and indolent B cell lymphoma and from the European Medicines Agency for the treatment of indolent B cell lymphoma, ALL, CLL and mantle cell leukemia (MCL). Blinatumomab is also being investigated for its potential to treat pediatric relapsed/refractory ALL, relapsed/refractory Philadelphia positive (Ph+) B-precursor ALL, minimal residual disease positive (MRD+) B-precursor ALL, relapsed/refractory non-Hodgkin's lymphoma (NHL), including relapsed/refractory diffuse large B-cell lymphoma (DLBCL).
Acute lymphoblastic leukemia (ALL) is an aggressive cancer of the blood and bone marrow the spongy tissue inside bones where blood cells are made1. The disease progresses rapidly and affects immature blood cells, rather than mature ones1. Worldwide, ALL accounts for more than 12 percent of leukemia. Of the 42,000 people diagnosed worldwide, 31,000 will die from the disease. Patients with ALL have abnormal white blood cells (lymphocytes) that crowd out healthy white blood cells, red blood cells and platelets, leading to infection, anemia (fatigue), easy bleeding and serious side effects6.
Amgen is committed to unlocking the potential of biology for patients suffering from serious illnesses by discovering, developing, manufacturing and delivering innovative human therapeutics. This approach begins by using tools like advanced human genetics to unravel the complexities of disease and understand the fundamentals of human biology.
Amgen focuses on areas of high unmet medical need and leverages its biologics manufacturing expertise to strive for solutions that improve health outcomes and dramatically improve people's lives. A biotechnology pioneer since 1980, Amgen has grown to be the world's largest independent biotechnology company, has reached millions of patients around the world and is developing a pipeline of medicines with breakaway potential.
For more information, visit www.amgen.com and follow us on www.twitter.com/amgen.
This news release contains forward-looking statements that are based on the current expectations and beliefs of Amgen Inc. and its subsidiaries (Amgen or us) and are subject to a number of risks, uncertainties and assumptions that could cause actual results to differ materially from those described. All statements, other than statements of historical fact, are statements that could be deemed forward-looking statements, including estimates of revenues, operating margins, capital expenditures, cash, other financial metrics, expected legal, arbitration, political, regulatory or clinical results or practices, customer and prescriber patterns or practices, reimbursement activities and outcomes and other such estimates and results. Forward-looking statements involve significant risks and uncertainties, including those discussed below and more fully described in the Securities and Exchange Commission (SEC) reports filed by Amgen Inc., including Amgen Inc.'s most recent annual report on Form 10-K and any subsequent periodic reports on Form 10-Q and Form 8-K. Please refer to Amgen Inc.'s most recent Forms 10-K, 10-Q and 8-K for additional information on the uncertainties and risk factors related to our business. Unless otherwise noted, Amgen is providing this information as of July 1, 2014, and expressly disclaims any duty to update information contained in this news release.
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CONTACT: Amgen, Thousand Oaks
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- Mayo Clinic. "Acute lymphocytic leukemia." Available at: http://www.mayoclinic.com/health/acute-lymphocytic-leukemia/DS00558. Accessed on May 28, 2014.
- U.S. Food and Drug Administration. "Frequently Asked Questions: Breakthrough Therapies." Available at: http://www.fda.gov/RegulatoryInformation/Legislation/FederalFoodDrugandCosmeticActFDCAct/SignificantAmendmentstotheFDCAct/FDASIA/ucm341027.htm. Accessed on May 28, 2014.
- Siegel R, Naishadham D, Jemal A. Cancer statistics, 2013. Ca Cancer J Clin. 2013;63:11-30.
- Gatta G, Maarten van der Zwan J, Casali P, et. al. Rare cancers are not so rare: The rare cancer burden in Europe. Eur J Cancer. 2011;47:2493-2511.
- Advani A.S. New immune strategies for the treatment of acute lymphoblastic leukemia: Antibodies and chimeric antigen receptors. Hematology Am Soc Hematol Educ Program. 2013;2013:131-7. Retrieved from: http://asheducationbook.hematologylibrary.org/content/2013/1/131.long.
- Mayo Clinic. "Acute lymphocytic leukemia: symptoms". Available at: http://www.mayoclinic.com/health/acute-lymphocytic-leukemia/DS00558/DSECTION=symptoms. Accessed on May 28, 2014.
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