Phase 3 A.R.R.O.W. Study Of Once-Weekly KYPROLIS® (Carfilzomib) Regimen Meets Primary Endpoint Of Progression-Free Survival In Relapsed And Refractory Multiple Myeloma Patients

Once-Weekly KYPROLIS at 70 mg/m2 Shows Superior Efficacy and Comparable Safety to Twice-Weekly KYPROLIS at 27 mg/m2

Positive Results From Pre-Specified Interim Analysis

THOUSAND OAKS, CA, USA I October 23, 2017 I Amgen (NASDAQ: AMGN) today announced top-line results of the Phase 3 A.R.R.O.W. trial, which showed KYPROLIS® (carfilzomib) administered once-weekly at the 70 mg/m2 dose with dexamethasone allowed relapsed and refractory multiple myeloma patients to live 3.6 months longer without their disease worsening than KYPROLIS administered twice-weekly at the 27 mg/m2 dose with dexamethasone. The overall safety profile of the once-weekly KYPROLIS regimen was comparable to that of the twice-weekly regimen.

The study included 478 patients with relapsed and refractory multiple myeloma who received two or three prior lines of therapy, including a proteasome inhibitor and an immunomodulatory agent (IMiD). Patients in the trial treated with the once-weekly KYPROLIS regimen achieved a statistically significant superior progression-free survival (PFS) with a median of 11.2 months compared to 7.6 months for those treated with the twice-weekly KYPROLIS regimen (HR = 0.69, 95 percent CI, 0.54 – 0.88).

"KYPROLIS has been demonstrated to be the most effective proteosome inhibitor available to patients with multiple myeloma," said Sean E. Harper, M.D., executive vice president of Research and Development at Amgen. "We are encouraged by the efficacy and safety profile of KYPROLIS and dexamethasone administered once-weekly in the A.R.R.O.W. study."

The most frequently reported treatment-emergent adverse events (greater than or equal to 20 percent) in either treatment arm were anemia, diarrhea, fatigue, hypertension, insomnia and pyrexia.

About A.R.R.O.W.

The A.R.R.O.W. (RAndomized, Open-label, Phase 3 Study in Subjects with Relapsed and Refractory Multiple Myeloma Receiving Carfilzomib in Combination with Dexamethasone, Comparing Once-Weekly versus Twice-weekly Carfilzomib Dosing) trial evaluated approximately 478 patients with relapsed and refractory multiple myeloma who have received at least two but no more than three prior therapies, including bortezomib and an IMiD. Those included in the study were randomized to receive once-weekly KYPROLIS (20 mg/m2 on day 1 of cycle 1; 70 mg/m2 on days 8 and 15 of cycle 1; and 70 mg/m2 on days 1, 8 and 15 of subsequent cycles) with dexamethasone (40 mg) versus twice-weekly KYPROLIS (20 mg/m2 on days 1 and 2 of cycle 1; 27 mg/m2 on days 8, 9, 15 and 16 of cycle 1; and 27 mg/m2 on days 1, 2, 8, 9, 15 and 16 of subsequent cycles) with dexamethasone (40 mg). The primary endpoint of the trial was PFS, defined as the time from randomization to disease progression or death. Secondary endpoints included overall response rate, overall survival, and safety and tolerability. The trial was conducted in approximately 100 sites worldwide. For more information about this trial, please visit www.clinicaltrials.gov under trial identification number NCT02412878.

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 life-threatening disease that accounts for approximately one percent of all cancers.2,3 In the U.S., there are more than 118,000 people living with, or in remission from, multiple myeloma.4 Approximately 30,280 Americans are diagnosed with multiple myeloma each year and 12,590 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, Qatar, Switzerland, Singapore, Taiwan, Jordan, Egypt, Saudi Arabia, United Arab Emirates, Turkey, Russia, Brazil, India, Oman 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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