Table 6 Inhibitors of PcG proteins undergoing current clinical trials in malignant cellsa.

From: Structural heterogeneity of the mammalian polycomb repressor complex in immune regulation

Target polycomb subunit

Agent

Mode of action

NCT ID

Phase

Target tumor types

Status

EZH2

Tazemetostat (EPZ-6438)

S-adenosyl- L-methionine (SAM) competitive inhibitor

NCT02875548

II

Diffuse large B cell lymphoma

Recruiting

NCT02601950

II

INI (hSNF5; SMARCB1)-negative tumor and relapsed/refractory synovial sarcoma

Recruiting

NCT01897571

I/II

Advanced solid tumor and B cell lymphoma

Active, not recruiting

NCT02601937

I

INI (hSNF5; SMARCB1)-negative tumor and synovial sarcoma

Recruiting

NCT02860286

II

Malignant mesothelioma

Completed

NCT03213665

II

Relapsed/refractory advanced solid tumor and non-Hodgkin’s lymphoma

Recruiting

NCT02889523

Ib/II

Diffuse large B cell lymphoma

Suspended

NCT03217253

I

Metastatic or unresectable solid tumor

Active,not recruiting

NCT03348631

II

Recurrent ovarian cancer

Suspended

GSK2816126

SAM competitive inhibitor

NCT02082977

I

Relapsed/refractory diffuse large B cell lymphoma and transformed follicular lymphoma

Terminated

CPI-1205

SAM competitive inhibitor

NCT02395601

I

B cell lymphoma

Completed

CPI-0209

Second generation inhibitor of EZH2

NCT04104776

I/II

Advanced solid tumor

Recruiting

PF-06821497

SAM competitive inhibitor

NCT03460977

I

Relapsed/refractory small cell lung cancer,castration-resistant prostate cancer, and follicular lymphoma

Recruiting

SHR2554

SAM competitive inhibitor

NCT03603951

I

Relapsed/refractory mature lymphoid neoplasm

Recruiting

EZH1 and EZH2

DS-3201b (Valemetostat tosylate)

SAM competitive inhibitor

NCT04102150

II

Relapsed/refractory adult T cell leukemia/lymphoma

Recruiting

EED

MAK683

Binds to EED and change overall shape of PRC2

NCT02900651

I/II

Diffuse large B cell lymphoma

Recruiting

BMI1

PTC-596

Phosphorylation of BMI-1 at two N-terminal sites which leads to the degradation of BMI-1

NCT03605550

Ib

High grade glioma and diffuse intrinsic pontine glioma

Recruiting

NCT03206645

I

Ovarian cancer

Recruiting

NCT02404480

I

Advanced solid cancer

Completed

NCT03761095

I

Leiomyosarcoma

Recruiting

  1. aInformation in Table 6 was acquired from https://clinicaltrials.gov/.