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EBI-2511 is a highly potent and orally active EZH2 inhibitor, with an IC50 of 6 nM in Pfeffiera cell lines, respectively.

EBI-2511 (Compound 34) significantly reduces cellular H3K27me3 levels in a dose-dependent manner with an approximate IC50 of 8 nM, which is 3-fold more potent than EPZ-6438. In addition to Pfeffier cell line, EBI-2511 was shown active with IC50 value of 55 nM against WSU-DLCL2[1].

EBI-2511 displays a dose-dependent inhibition on the tumor growth, resulting in 28% (10mg/kg), 83% (30mg/kg), and 97% (100mg/kg) reduction in tumor size. At the same dosage level, EBI-2511 shows a superior anti-tumor efficacy to EPZ-6438 (P<0.01). It is noteworthy that no significant changes in body weights of all treatment groups are observed[1].

[1]. Lu B, et al. Discovery of EBI-2511: A Highly Potent and Orally Active EZH2 Inhibitor for the Treatment of Non-Hodgkin's Lymphoma. ACS Med Chem Lett. 2018 Jan 29;9(2):98-102.

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