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Amgen Announces Results of Phase 3 Head-to-Head Study of Drugs for Multiple Myeloma

By Drug Discovery Trends Editor | March 2, 2015

Amgen and its subsidiary Onyx Pharmaceuticals Inc. announced the results from a planned interim analysis showing that the Phase 3 head-to-head clinical trial ENDEAVOR evaluating Kyprolis (carfilzomib) for Injection in combination with low-dose dexamethasone versus Velcade (bortezomib) and low-dose dexamethasone met the primary endpoint of progression-free survival (PFS). Patients with relapsed multiple myeloma treated with Kyprolis lived twice as long without their disease worsening, demonstrating statistically and clinically significant superiority over Velcade.

The Kyprolis combination demonstrated superiority over the Velcade combination for secondary objectives of higher overall response rate and lower neuropathy events. Overall survival data are not yet mature and continue to be monitored.

Treatment discontinuation due to adverse events and on-study deaths were comparable between the two arms. The rates of cardiac failure and renal failure for Kyprolis were comparable to those observed in the Phase 3 ASPIRE study. In ENDEAVOR, the rates for cardiac and renal failure were higher in the Kyprolis arm versus the Velcade arm. There was an increase in the incidence of hypertension and dyspnea in the Kyprolis arm compared to Velcade and that observed in the ASPIRE study.

Full data will be submitted for presentation at the American Society of Clinical Oncology 2015 Annual Meeting.

“We are excited about the results with Kyprolis in the ENDEAVOR and ASPIRE studies and the potential positive impact for patients with relapsed multiple myeloma,” said Robert A. Bradway, chairman and chief executive officer at Amgen.
 
“As new treatment options become available to patients with relapsed multiple myeloma, comparative trials, like ENDEAVOR, are becoming increasingly important to help physicians make informed decisions about the optimal care for patients,” said Pablo J. Cagnoni, M.D., president, Onyx Pharmaceuticals Inc. “Demonstrating superiority over Velcade in this head-to-head trial supports our goal of ensuring continued improvement of patient outcomes and potentially establishing Kyprolis as the backbone of therapy for patients with multiple myeloma.”

The ENDEAVOR study is the first of two head-to-head studies for Kyprolis versus Velcade, an established proteasome inhibitor, currently approved to treat multiple myeloma.

Source: Amgen


Filed Under: Drug Discovery

 

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