THOUSAND OAKS, Calif. and SOUTH SAN FRANCISCO, Calif., Dec. 6, 2014 /PRNewswire/ -- Amgen (NASDAQ: AMGN) and its subsidiary Onyx Pharmaceuticals, Inc., announced today results of the Phase 3 ASPIRE (CArfilzomib, Lenalidomide, and DexamethaSone versus Lenalidomide and Dexamethasone for the treatment of PatIents with Relapsed Multiple MyEloma) trial, which evaluated Kyprolis® (carfilzomib) for Injection plus Revlimid® (lenalidomide) and dexamethasone (KRd) compared with Revlimid and dexamethasone (Rd) in patients with relapsed multiple myeloma. As previously reported, the ASPIRE study met its primary endpoint by demonstrating that KRd significantly extended the time patients lived without their disease worsening, or progression-free survival (PFS), by 26.3 months compared to 17.6 months with Rd (HR=0.69; 95 percent CI: 0.57-0.83; p<0.0001), an 8.7 month improvement in PFS.
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The results from ASPIRE (abstract 79) will be featured during the 56th American Society of Hematology (ASH) Annual Meeting and Exposition press briefing on Saturday, December 6 at 8 a.m. PT and were published in the New England Journal of Medicine. Keith Stewart, M.B., Ch.B., dean for research at Mayo Clinic in Arizona and principal investigator will present these results in an oral session at ASH on Sunday, December 7 at 12 p.m. PT.
Secondary endpoints, which are being presented for the first time, included overall survival (OS), overall response rate (ORR), duration of response (DOR), health-related quality of life (HR-QoL) measures and safety. While the data for median OS are not yet mature based on the prespecified statistical boundary at the interim (p=0.005), the analysis showed a trend in favor of KRd compared with Rd (HR=0.79; 95 percent CI: 0.63-0.99; one-sided p=0.018, two-sided p=0.04). Patients will continue to be monitored for OS. The ORR was 87.1 percent with KRd and 66.7 percent with Rd (one-sided p<0.0001, two-sided p<0.001). In the KRd and Rd groups, 14 percent versus 4.3 percent of patients achieved a stringent complete response, a measurement indicating superior depth of response. Median DOR was 28.6 months (KRd) and 21.2 months (Rd). KRd consistently improved Global HR-QoL compared with Rd over 18 cycles of treatment (one-sided p=0.0001, two-sided p<0.001).
"Nearly all patients with multiple myeloma experience a relapse following treatment, underscoring the need for new options that not only extend the time patients live without their disease progressing, but also improve the depth and duration of a response to treatment," said Dr. Stewart. "The combination of carfilzomib, lenalidomide and low-dose dexamethasone generates deep and durable responses, provides a clinically meaningful improvement in progression-free survival and promises to be an important advancement in the treatment of myeloma."
Treatment discontinuation due to an adverse event (AE) occurred in 15.3 percent (KRd) versus 17.7 percent (Rd) of patients. In the KRd arm, 7.7 percent versus 8.5 percent (Rd) of patients died while still on study treatment or within 30 days of receiving the last dose of study treatment. The most common hematologic treatment-emergent AEs (≥grade 3) included neutropenia (29.6 percent [KRd] versus 26.5 percent [Rd]), anemia (17.9 percent [KRd] versus 17.2 percent [Rd]) and thrombocytopenia (16.6 percent [KRd] versus 12.3 percent [Rd]). The most common nonhematologic treatment-emergent AEs (≥grade 3) included hypokalemia (9.4 percent [KRd] versus 4.9 percent [Rd]), fatigue (7.7 percent [KRd] versus 6.4 percent [Rd]) and diarrhea (3.8 percent [KRd] versus 4.1 percent [Rd]). Other treatment-emergent AEs of interest (all grade) included dyspnea (19.4 percent [KRd] versus 14.9 percent [Rd]), hypertension (14.3 percent [KRd] versus 6.9 percent [Rd]), acute renal failure (grouped term: 8.4 percent [KRd] versus 7.2 percent [Rd]), cardiac failure (grouped term: 6.4 percent [KRd] versus 4.1 percent [Rd]) and ischemic heart disease (5.9 percent [KRd] versus 4.6 percent [Rd]). Lastly, rates of peripheral neuropathy (grouped term) were 17.1 percent (KRd) and 17.0 percent (Rd), respectively.
"Delivering new potential treatment options exemplifies Onyx and Amgen's commitment to advancing the care of patients with multiple myeloma," said Pablo J. Cagnoni, M.D., president, Onyx Pharmaceuticals, Inc. "The results from the Phase 3 ASPIRE study bring us one step closer to establishing Kyprolis as a backbone of therapy in the treatment of multiple myeloma."
Results from the ASPIRE trial will form the basis for regulatory submissions throughout the world beginning in the first half of 2015. In the U.S., the data may support the conversion of accelerated approval to full approval and expand the current indication.
The international, randomized Phase 3 ASPIRE (CArfilzomib, Lenalidomide, and DexamethaSone versus Lenalidomide and Dexamethasone for the treatment of PatIents with Relapsed Multiple MyEloma) trial evaluated Kyprolis in combination with lenalidomide and low-dose dexamethasone, versus lenalidomide and low-dose dexamethasone alone, in patients with relapsed multiple myeloma following treatment with one to three prior regimens. The primary endpoint of the trial was PFS, defined as the time from treatment initiation to disease progression or death. Secondary endpoints included OS, ORR, DOR, disease control rate, duration of disease control, change over time in HR-QoL and safety. Patients were randomized to receive Kyprolis (20 mg/m2 on days 1 and 2 of cycle 1 only, then 27 mg/m2 subsequently), in addition to a standard dosing schedule of lenalidomide (25 mg per day for 21 days on, 7 days off) and low-dose dexamethasone (40 mg per week in 4 week cycles), versus lenalidomide and low-dose dexamethasone alone. In the Kyprolis arm, patients were given a 10 minute infusion on days 1, 2, 8, 9, 15 and 16. Kyprolis was omitted on days 8 and 9 during cycles 13-18 and not administered beyond 18 cycles. The study randomized 792 patients at sites in North America, Europe and Israel.
Onyx conducted the ASPIRE trial under a Special Protocol Assessment (SPA) from the U.S. Food and Drug Administration (FDA) and has received Scientific Advice from the European Medicines Agency (EMA) on the design and planned analysis of the study.
Amgen Webcast Investor Meeting
Amgen will host a webcast investor meeting on Monday, December 8, at 12 p.m. PT. Sean E. Harper, M.D., executive vice president of Research and Development at Amgen, and Pablo J. Cagnoni, M.D., president of Onyx Pharmaceuticals Inc., along with members of Amgen's clinical development team and clinical investigators, will participate in the investor meeting to discuss data presented at ASH, including the results of the pivotal Kyprolis ASPIRE study and BLINCYTOTM (blinatumomab) studies in acute lymphoblastic leukemia and diffuse large B-cell lymphoma.
Live audio of the investor meeting will be simultaneously broadcast over the Internet and will be available to members of the news media, investors and the general public.
The webcast, as with other selected presentations regarding developments in Amgen's business given by management at certain investor and medical conferences, can be found on Amgen's website, www.amgen.com, under Investors. Information regarding presentation times, webcast availability and webcast links are noted on Amgen's Investor Relations Events Calendar. The webcast will be archived and available for replay for at least 90 days after the event.
About Multiple Myeloma
Multiple myeloma is the second most common hematologic cancer and results from an abnormality of plasma cells, usually in the bone marrow. In the U.S., approximately 70,000 people are living with multiple myeloma and approximately 24,000 new cases are diagnosed annually.1 Worldwide, nearly 230,000 people are living with multiple myeloma and approximately 114,000 new cases are diagnosed annually.2 In Europe, approximately 89,000 people are living with multiple myeloma and approximately 39,000 new cases are diagnosed annually.3
About Kyprolis® (carfilzomib) for Injection
On July 20, 2012, the U.S. FDA granted accelerated approval of Kyprolis® (carfilzomib) for Injection for the treatment of patients with multiple myeloma who have received at least two prior therapies including bortezomib and an immunomodulatory agent (IMiD) and have demonstrated disease progression on or within 60 days of completion of the last therapy. Approval was based on response rate. Clinical benefit, such as improvement in survival or symptoms, has not been verified.
Kyprolis is marketed in the U.S. by Onyx Pharmaceuticals, Inc., an Amgen subsidiary.
Kyprolis is a product of Onyx Pharmaceuticals, Inc. Onyx Pharmaceuticals is a subsidiary of Amgen and holds development and commercialization rights to Kyprolis globally, excluding Japan. For more information about Kyprolis, visit www.kyprolis.com.
Important Safety Information Regarding Kyprolis® (carfilzomib) for Injection
Safety data have been evaluated in 526 patients with relapsed and/or refractory multiple myeloma who received single-agent Kyprolis. There were 37 deaths in the Phase 2 studies, or 7 percent of patients. The most common causes of death, other than disease progression, were cardiac (5 patients), end-organ failure (4 patients) and infection (4 patients). Important warnings and precautions include cardiac arrest, congestive heart failure, myocardial ischemia, pulmonary hypertension, pulmonary complications, infusion reactions, tumor lysis syndrome, thrombocytopenia, hepatic toxicity and embryo-fetal toxicity.
Death due to cardiac arrest has occurred within a day of Kyprolis administration. Patients with New York Heart Association Class III and IV heart failure, myocardial infarction in the preceding 6 months and conduction abnormalities uncontrolled by medications were not eligible for the clinical trials. These patients may be at greater risk for cardiac complications.
Pulmonary arterial hypertension (PAH) was reported in 2 percent of patients treated with Kyprolis and was Grade 3 or greater in less than 1 percent of patients. Dyspnea was reported in 35 percent of patients enrolled in clinical trials. Grade 3 dyspnea occurred in 5 percent; no Grade 4 events and 1 death (Grade 5) was reported.
Infusion reactions, characterized by a spectrum of systemic symptoms including fever, chills, arthralgia, myalgia, facial flushing, facial edema, vomiting, weakness, shortness of breath, hypotension, syncope, chest tightness, or angina can occur immediately following or up to 24 hours after administration of Kyprolis. Administration of dexamethasone prior to Kyprolis reduces the incidence and severity of reactions. Tumor lysis syndrome (TLS) occurred following Kyprolis administration in <1 percent of patients. Patients with multiple myeloma and a high tumor burden should be considered to be at greater risk for TLS.
Thrombocytopenia following Kyprolis administration resulted in a dose reduction in 1 percent of patients and discontinuation of treatment with Kyprolis in <1 percent of patients.
Cases of hepatic failure, including fatal cases, have been reported (<1 percent). Kyprolis can cause elevations of serum transaminases and bilirubin.
There are no adequate and well-controlled studies in pregnant women using Kyprolis. Females of reproductive potential should be advised to avoid becoming pregnant while being treated with Kyprolis.
The most common serious adverse reactions were pneumonia, acute renal failure, pyrexia and congestive heart failure. The most common adverse reactions (incidence of 30 percent or greater) observed in clinical trials of patients with multiple myeloma were fatigue, anemia, nausea, thrombocytopenia, dyspnea, diarrhea and pyrexia. Serious adverse reactions were reported in 45 percent of patients.
Full prescribing information is available at www.kyprolis.com.
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About Onyx Pharmaceuticals, Inc.
Based in South San Francisco, California, Onyx Pharmaceuticals, Inc., an Amgen subsidiary, is a global biopharmaceutical company engaged in the development and commercialization of innovative therapies for improving the lives of people with cancer. The company is focused on developing novel medicines that target key molecular pathways. For more information about Onyx, visit the company's website at www.onyx.com. Onyx Pharmaceuticals is on Twitter. Sign up to follow our Twitter feed @OnyxPharm at http://twitter.com/OnyxPharm.
REVLIMID® is a registered trademark of Celgene Corporation.
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CONTACT: Amgen, Thousand Oaks
Kristen Davis, 805-447-3008 (Amgen media)
Lindsay Treadway, 650-266-5346 (Onyx media)
Arvind Sood, 805-447-1060 (investors)
- National Cancer Institute. SEER Stat Fact Sheets: Myeloma. Available at http://seer.cancer.gov/statfacts/html/mulmy.html.
- International Agency for Research on Cancer, GLOBOCAN 2012 database. Available at http://globocan.iarc.fr/.
- Cancer Research UK. "Myeloma Incidence Statistics." Available at: http://www.cancerresearchuk.org/cancer-info/cancerstats/types/myeloma/incidence/uk-multiple-myeloma-incidence-statistics#europeandworldwide.
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