Exelixis, Inc. (NASDAQ:EXEL) announced that the Independent Data Monitoring Committee (IDMC) notified the company today that a planned interim analysis of the COMET-1 phase 3 pivotal trial has been completed, and that the IDMC recommended the trial proceed to its final analysis. Exelixis continues to anticipate top-line data from COMET-1 in 2014. About the COMET-1 Trial COMET-1 is a randomized, double-blind, controlled trial designed to enroll 960 patients with mCRPC who have progressed after treatment with docetaxel, abiraterone and/or enzalutamide. All patients in the trial have bone metastases and there is no limit to the number or type of prior treatments. Patients were randomized 2:1 to receive cabozantinib (60 mg daily) or prednisone (5 mg twice daily). The trial is event-driven and has 90% power to detect a 25% reduction in the risk of death (HR = 0.75) at the time of final analysis, which requires 578 events. The current interim analysis after 387 events was also planned to assess if the trial achieved its primary endpoint; it did not include a futility analysis. The secondary endpoint of the trial is bone scan response as assessed by an independent radiology facility (IRF). About Cabozantinib Cabozantinib inhibits the activity of tyrosine kinases including MET, VEGFRs and RET. These receptor tyrosine kinases are involved in both normal cellular function and in pathologic processes such as oncogenesis, metastasis, tumor angiogenesis, and maintenance of the tumor microenvironment. COMETRIQ® (cabozantinib) is currently approved by the U.S. Food and Drug Administration for the treatment of progressive, metastatic medullary thyroid cancer. The European Commission granted COMETRIQ conditional approval for the treatment of adult patients with progressive, unresectable locally advanced or metastatic medullary thyroid carcinoma (MTC). Similar to another drug approved in this setting, the approved indication states that for patients in whom Rearranged during Transfection (RET) mutation status is not known or is negative, a possible lower benefit should be taken into account before individual treatment decisions.
Important Safety Information, including Boxed WARNINGSWARNING: PERFORATIONS AND FISTULAS, and HEMORRHAGE
- Serious and sometimes fatal gastrointestinal perforations and fistulas occur in COMETRIQ-treated patients.
- Severe and sometimes fatal hemorrhage occurs in COMETRIQ-treated patients.
- COMETRIQ treatment results in an increase in thrombotic events, such as heart attacks.
- Wound complications have been reported with COMETRIQ.
- COMETRIQ treatment results in an increase in hypertension.
- Osteonecrosis of the jaw has been observed in COMETRIQ-treated patients.
- Palmar-Plantar Erythrodysesthesia Syndrome (PPES) occurs in patients treated with COMETRIQ.
- The kidneys can be adversely affected by COMETRIQ. Proteinuria and nephrotic syndrome have been reported in patients receiving COMETRIQ.
- Reversible Posterior Leukoencephalopathy Syndrome has been observed with COMETRIQ.
- Avoid administration of COMETRIQ with agents that are strong CYP3A4 inducers or inhibitors.
- COMETRIQ is not recommended for use in patients with moderate or severe hepatic impairment.
- COMETRIQ can cause fetal harm when administered to a pregnant woman.
Exelixis, the Exelixis logo, and COMETRIQ are registered U.S. trademarks.