Amgen Presents Overall Survival Data From KYPROLIS® (carfilzomib) Phase 3 ENDEAVOR Trial At 16th International Myeloma Workshop

Late-Breaking Presentation to Show Overall Survival Benefit of KYPROLIS Compared to Velcade® (Bortezomib) in Relapsed or Refractory Multiple Myeloma Patients
First-and-Only Head-to-Head Study Comparing Proteasome Inhibitors to Demonstrate Statistically Significant Improved Overall Survival

THOUSAND OAKS, CA, USA I March 3, 2017 I Amgen (NASDAQ:AMGN) today announced positive results from a planned overall survival (OS) interim analysis of the Phase 3 head-to-head ENDEAVOR trial. The study met the key secondary endpoint of OS, demonstrating that patients with relapsed or refractory multiple myeloma treated with KYPROLIS® (carfilzomib) and dexamethasone (Kd) lived 7.6 months longer than those treated with Velcade® (bortezomib) and dexamethasone (Vd) (median OS 47.6 months for Kd versus 40.0 for Vd, HR=0.79; 95 percent CI: 0.65 – 0.96; p=0.01). The OS benefit was consistent regardless of prior Velcade therapy (HR 0.75 for no prior Velcade; HR 0.84 for prior Velcade). These data will be presented today during the late-breaking abstract session at the 16th International Myeloma Workshop (IMW) in New Delhi.

"Results from the ENDEAVOR primary analysis proved KYPROLIS is the superior proteasome inhibitor, having doubled progression-free survival compared to Velcade," said Meletios A. Dimopoulos, M.D., professor of Clinical Therapeutics at the National and Kapodistrian University of Athens, School of Medicine. "Results presented today showed that progression-free survival advantage translated into significantly improved survival for patients, a clinical endpoint that creates confidence for physicians and patients, especially in a relapsing disease like multiple myeloma."

"We are proud to share these results with leading multiple myeloma experts at IMW as we continue to explore the complex biology of treating this presently incurable disease," said Sean E. Harper, M.D., executive vice president of Research and Development at Amgen. "KYPROLIS continues to demonstrate advancement in proteasome inhibition, and we look forward to submitting these findings to regulatory agencies worldwide to support a potential label update."

This Kd regimen administered with 56 mg/m2 KYPROLIS twice weekly is approved in the U.S., European Union and other countries based on the primary analysis of progression-free survival (PFS) in the ENDEAVOR study.

Adverse events observed in this updated analysis were consistent with those previously reported for ENDEAVOR. The most common adverse events (greater than or equal to 20 percent) in the KYPROLIS arm were anemia, diarrhea, pyrexia, dyspnea, fatigue, hypertension, cough, insomnia, upper respiratory tract infection, peripheral edema, nausea, bronchitis, asthenia, back pain, thrombocytopenia and headache.

The KYPROLIS clinical program continues to focus on providing solutions for physicians and patients in treating this frequently relapsing and difficult-to-treat cancer. KYPROLIS is available for patients whose myeloma has relapsed or become resistant to another treatment and continues to be studied in a range of combinations and patient populations.

About ENDEAVOR
The randomized ENDEAVOR (RandomizEd, OpeN Label, Phase 3 Study of Carfilzomib Plus DExamethAsone Vs Bortezomib Plus DexamethasOne in Patients With Relapsed Multiple Myeloma) trial of 929 patients evaluated KYPROLIS in combination with low-dose dexamethasone (Kd), versus bortezomib with low-dose dexamethasone (Vd) in patients whose multiple myeloma has relapsed after at least one, but not more than three prior therapeutic regimens. The primary endpoint of the trial was PFS, defined as the time from treatment initiation to disease progression or death. The primary analysis was published in The Lancet Oncology and is described in the Prescribing Information.

Patients received treatment until progression with KYPROLIS as a 30-minute infusion on days 1, 2, 8, 9, 15 and 16 of 28 day treatment cycles, along with low-dose dexamethasone (20 mg). For Cycle 1 only, KYPROLIS was administered at 20 mg/m2 on days 1 and 2, and if tolerated was escalated to 56 mg/m2 from day 8 Cycle 1 onwards. Patients who received bortezomib (1.3 mg/m2) with low-dose dexamethasone (20 mg) were treated with bortezomib administered subcutaneously or intravenously at the discretion of the investigator and in accordance with regional regulatory approval of bortezomib. More than 75 percent of the patients in the control arm received bortezomib subcutaneously. This study was conducted at 235 sites worldwide. For information about this trial, please visit www.clinicaltrials.gov under trial identification number NCT01568866 or the News Release section of Amgen.com.

About Multiple Myeloma
Multiple myeloma is an incurable blood cancer, characterized by a recurring pattern of remission and relapse.1 It is a rare and very aggressive disease that accounts for approximately one percent of all cancers.2,3 In the U.S., there are nearly 95,000 people living with, or in remission from, multiple myeloma.4 Approximately 30,330 Americans are diagnosed with multiple myeloma each year and 12,650 patient deaths are reported on an annual basis.4

About KYPROLIS® (carfilzomib) 
Proteasomes play an important role in cell function and growth by breaking down proteins that are damaged or no longer needed.5 KYPROLIS has been shown to block proteasomes, leading to an excessive build-up of proteins within cells.5 In some cells, KYPROLIS can cause cell death, especially in myeloma cells because they are more likely to contain a higher amount of abnormal proteins.5,6

KYPROLIS is approved in the U.S. for the following:

  • In combination with dexamethasone or with lenalidomide plus dexamethasone for the treatment of patients with relapsed or refractory multiple myeloma who have received one to three lines of therapy.
  • As a single agent for the treatment of patients with relapsed or refractory multiple myeloma who have received one or more lines of therapy.

KYPROLIS is also approved in Argentina, Australia, Bahrain, Canada, Hong Kong, Israel, Japan, Kuwait, Lebanon, Macao, Mexico, Thailand, Colombia, S. Korea, Canada, Qatar, Switzerland, United Arab Emirates, Turkey, Russia, Brazil, India and the European Union. Additional regulatory applications for KYPROLIS are underway and have been submitted to health authorities worldwide.

About Amgen's Commitment to Oncology
Amgen Oncology is committed to helping patients take on some of the toughest cancers, such as those that have been resistant to drugs, those that progress rapidly through the body and those where limited treatment options exist. Amgen's supportive care treatments help patients combat certain side effects of strong chemotherapy, and our targeted medicines and immunotherapies focus on more than a dozen different malignancies, ranging from blood cancers to solid tumors. With decades of experience providing therapies for cancer patients, Amgen continues to grow its portfolio of innovative and biosimilar oncology medicines.

About Amgen
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 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 one of the world's leading independent biotechnology companies, has reached millions of patients around the world and is developing a pipeline of medicines with breakaway potential.

SOURCE: Amgen

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