This is a Phase II, multicenter, open-label, single arm, 2-stage study of tazemetostat 800 mg BID (twice daily) and 1600 mg QD (once daily). Subjects will be screened for eligibility within 21 days of the planned date of the first dose of tazemetostat and enrolled into one of 8 cohorts:
Cohort using tazemetostat 800 mg BID
Cohort using tazemetostat 1600 mg QD
• Cohort 8 (Closed for enrollment): Epitheliod sarcoma
Subjects will be dosed in continuous 28-day cycles. (Note: if treatment with study drug is discontinued prior to completing 2 years, subjects will be followed for a maximum duration of 2 years from start of study drug dosing.) Response assessment will be performed every 8 weeks while on study.
Treatment with tazemetostat will continue until disease progression, unacceptable toxicity or withdrawal of consent, or termination of the study.
| Condition | Malignant Rhabdoid Tumors (MRT), Rhabdoid Tumors of the Kidney (RTK), Atypical Teratoid Rhabdoid Tumors (ATRT), Selected Tumors With Rhabdoid Features, Synovial Sarcoma, INI1-negative Tumors, Malignant Rhabdoid Tumor of Ovary, Renal Medullary Carcinoma, Epithelioid Sarcoma, Poorly Differentiated Chordoma (or Other Chordoma With Sponsor Approval), Any Solid Tumor With an EZH2 GOF Mutation |
|---|---|
| Treatment | Tazemetostat |
| Clinical Study Identifier | NCT02601950 |
| Sponsor | Epizyme, Inc. |
| Last Modified on | 23 May 2022 |
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