Interim data from Epizyme Inc.’s ongoing phase II trial of EZH2 inhibitor tazemetostat boosted company shares (NASDAQ:EPZM) Wednesday as investors embraced news that 92 percent of patients with relapsed or refractory follicular lymphoma and EZH2-activating mutations treated with the experimental therapy saw their tumors shrink. People with the same mutation and diffuse large B-cell lymphoma (DLBCL) also benefited, though at a lower rate than seen in an earlier preview of the data. Both cancers are forms of non-Hodgkin lymphoma.