Epizyme Tazemetostat NDA Filed for Epithelioid Sarcoma
Epizyme has submitted an NDA seeking accelerated approval of tazemetostat for treating patients with metastatic or locally advanced epithelioid sarcoma not eligible for curative surgery. The company describes Tazemetostat is an oral, first-in-class, EZH2 inhibitor that it discovered and is developing for various cancers and treatment settings.
The submission is based on updated tazemetostat efficacy and safety data from 62 patients enrolled in the epithelioid sarcoma cohort of a Phase 2 clinical trial, which will be reported in an oral presentation at the American Society of Clinical Oncology 2019 annual meeting, according to the company. To support full approval, Epizyme says it plans to conduct a global, randomized, controlled trial, that it expects to begin shortly.
Epithelioid sarcoma is an ultra-rare soft tissue sarcoma characterized by a loss of the protein INI1, Epizyme says. Patients are most commonly diagnosed as young adults, between 20 and 40 years of age, and median overall survival from initial diagnosis is 30 months.