Use of EZH2 inhibitors for treating cancer

Patent metadata

Field	Value
Publication number	US-11786533-B2
Application number	US-201716306182-A
Country	US
Kind code	B2
Filing date	Jun 1, 2017
Priority date	Jun 1, 2016
Publication date	Oct 17, 2023
Grant date	Oct 17, 2023

Abstract

The disclosure provides a method for treating cancer in a subject in need thereof comprising administering to the subject: (a) a therapeutically effective amount of an EZH2 inhibitor and (b) a therapeutically effective amount of an immune checkpoint inhibitor. In certain embodiments of the methods of the disclosure, the EZH2 inhibitor is tazemetostat.

First claim

We claim:

1. A method for treating breast cancer, nervous system cancer, colorectal cancer, cervical cancer, or brain cancer in a subject, wherein the breast cancer, nervous system cancer, colorectal cancer, cervical cancer, or brain cancer is resistant to treatment with pembrolizumab as a monotherapy and wherein the breast cancer, nervous system cancer, colorectal cancer, cervical cancer, or brain cancer is resistant to treatment with the compound of Formula (IIa) or a pharmaceutically acceptable salt thereof, as a monotherapy, the method comprising administering to the subject:
(a) a compound of Formula (IIa) or a pharmaceutically acceptable salt thereof:

each of R a and R b , independently is H or R S3 , R S3 being C 1 -C 6 alkyl, C 3 -C 8 cycloalkyl, C 6 -C 10 aryl, 4 to 12-membered heterocycloalkyl, or 5- or 6-membered heteroaryl, or R a and R b , together with the N atom to which they are attached, form a 4 to 12-membered heterocycloalkyl ring having 0 or 1 additional heteroatom, and each of R S3 and the 4 to 12-membered heterocycloalkyl ring formed by R a and R b , is optionally substituted with one or more -Q 3 -T 3 , wherein Q 3 is a bond or C 1 -C 3 alkyl linker each optionally substituted with halo, cyano, hydroxyl or C 1 -C 6 alkoxy, and T3 is selected from the group consisting of halo, cyano, C 1 -C 6 alkyl, C 3 -C 8 cycloalkyl, C 6 -C 10 aryl, 4 to 12-membered heterocycloalkyl, 5- or 6-membered heteroaryl, OR d , COOR d , —S(O) 2 R d , —NR d R e , and —C(O)NR d R e , each of R d and R e independently being H or C 1 -C 6 alkyl, or -Q 3 -T 3 is oxo;
R 7 is -Q 4 -T 4 , in which Q 4 is a bond, C 1 -C 4 alkyl linker, or C 2 -C 4 alkenyl linker, each linker optionally substituted with halo, cyano, hydroxyl or C 1 -C 6 alkoxy, and T 4 is H, halo, cyano, NR f R g , —OR f , —C(O)R f , —C(O)OR f , —C(O)NR f R g , —C(O)NR f OR g , —NR f C(O)R g , —S(O) 2 R f , or R S4 , in which each of R f and R g , independently is H or R S5 , each of R S4 and R S5 , independently is C 1 -C 6 alkyl, C 2 -C 6 alkenyl, C 2 -C 6 alkynyl, C 3 -C 8 cycloalkyl, C 6 -C 10 aryl, 4 to 7-membered heterocycloalkyl, or 5- or 6-membered heteroaryl, and each of R S4 and R S5 is optionally substituted with one or more -Q 5 -T 5 , wherein Q 5 is a bond, C(O), C(O)NR k , NR k C(O), S(O) 2 , or C 1 -C 3 alkyl linker, R k being H or C 1 -C 6 alkyl, and T 5 is H, halo, C 1 -C 6 alkyl, hydroxyl, cyano, C 1 -C 6 alkoxyl, amino, mono-C 1 -C 6 alkylamino, di-C 1 -C 6 alkylamino, C 3 -C 8 cycloalkyl, C 6 -C 10 aryl, 4 to 7-membered heterocycloalkyl, 5- or 6-membered heteroaryl, or S(O) q R q in which q is 0, 1, or 2 and R q is C 1 -C 6 alkyl, C 2 -C 6 alkenyl, C 2 -C 6 alkynyl, C 3 -C 8 cycloalkyl, C 6 -C 10 aryl, 4 to 7-membered heterocycloalkyl, or 5- or 6-membered heteroaryl, and T 5 is optionally substituted with one or more substituents selected from the group consisting of halo, C 1 -C 6 alkyl, hydroxyl, cyano, C 1 -C 6 alkoxyl, amino, mono-C 1 -C 6 alkylamino, di-C 1 -C 6 alkylamino, C 3 -C 8 cycloalkyl, C 6 -C 10 aryl, 4 to 7-membered heterocycloalkyl, and 5- or 6-membered heteroaryl except when T 5 is H, halo, hydroxyl, or cyano; or -Q 5 -T 5 is oxo; provided that R 7 is not H; and
R 8 is H, halo, hydroxyl, COOH, cyano, R S6 , OR S6 , or COOR S6 , in which R S6 is C 1 -C 6 alkyl, C 2 -C 6 alkenyl, C 2 -C 6 alkynyl, amino, mono-C 1 -C 6 alkylamino, or di-C 1 -C 6 alkylamino, and R S6 is optionally substituted with one or more substituents selected from the group consisting of halo, hydroxyl, COOH, C(O)O—C 1 -C 6 alkyl, cyano, C 1 -C 6 alkoxyl, amino, mono-C 1 -C 6 alkylamino, and di-C 1 -C 6 alkylamino; or R 7 and R 8 , together with the N atom to which they are attached, form a 4 to 11-membered heterocycloalkyl ring which has 0 to 2 additional heteroatoms and is optionally substituted with one or more -Q 6 -T 6 , wherein Q 6 is a bond, C(O), C(O)NR m , NR m C(O), S(O) 2 , or C 1 -C 3 alkyl linker, R m being H or C 1 -C 6 alkyl, and T 6 is H, halo, C 1 -C 6 alkyl, hydroxyl, cyano, C 1 -C 6 alkoxyl, amino, mono-C 1 -C 6 alkylamino, di-C 1 -C 6 alkylamino, C 3 -C 8 cycloalkyl, C 6 -C 10 aryl, 4 to 7-membered heterocycloalkyl, 5- or 6-membered heteroaryl, or S(O) p R p in which p is 0, 1, or 2 and R p is C 1 -C 6 alkyl, C 2 -C 6 alkenyl, C 2 -C 6 alkynyl, C 3 -C 8 cycloalkyl, C 6 -C 10 aryl, 4 to 7-membered heterocycloalkyl, or 5- or 6-membered heteroaryl, and T 6 is optionally substituted with one or more substituents selected from the group consisting of halo, C 1 -C 6 alkyl, hydroxyl, cyano, C 1 -C 6 alkoxyl, amino, mono-C 1 -C 6 alkylamino, di-C 1 -C 6 alkylamino, C 3 -C 8 cycloalkyl, C 6 -C 10 aryl, 4 to 7-membered heterocycloalkyl, and 5- or 6-membered heteroaryl except when T 6 is H, halo, hydroxyl, or cyano; or -Q 6 -T 6 is oxo; and
(b) pembrolizumab.

2. A method for treating breast cancer, nervous system cancer, colorectal cancer, cervical cancer, or brain cancer in a subject comprising administering to the subject a compound of Formula (IIa) or a pharmaceutically acceptable salt thereof:

each of R a and R b , independently is H or R S3 , R S3 being C 1 -C 6 alkyl, C 3 -C 8 cycloalkyl, C 6 -C 10 aryl, 4 to 12-membered heterocycloalkyl, or 5- or 6-membered heteroaryl, or R a and R b , together with the N atom to which they are attached, form a 4 to 12-membered heterocycloalkyl ring having 0 or 1 additional heteroatom, and each of R S3 and the 4 to 12-membered heterocycloalkyl ring formed by R a and R b , is optionally substituted with one or more -Q 3 -T 3 , wherein Q 3 is a bond or C 1 -C 3 alkyl linker each optionally substituted with halo, cyano, hydroxyl or C 1 -C 6 alkoxy, and T 3 is selected from the group consisting of halo, cyano, C 1 -C 6 alkyl, C 3 -C 8 cycloalkyl, C 6 -C 10 aryl, 4 to 12-membered heterocycloalkyl, 5- or 6-membered heteroaryl, OR d , COOR d , —S(O) 2 R d , —NR d R e , and —C(O)NR d R e , each of R d and R e independently being H or C 1 -C 6 alkyl, or -Q 3 -T 3 is oxo;
R 7 is -Q 4 -T 4 , in which Q 4 is a bond, C 1 -C 4 alkyl linker, or C 2 -C 4 alkenyl linker, each linker optionally substituted with halo, cyano, hydroxyl or C 1 -C 6 alkoxy, and T 4 is H, halo, cyano, NR f R g , —OR f , —C(O)R f , —C(O)OR f , —C(O)NR f R g , —C(O)NR f OR g , —NR f C(O)R g , —S(O) 2 R f , or R S4 , in which each of R f and R g , independently is H or R S5 , each of R S4 and R S5 , independently is C 1 -C 6 alkyl, C 2 -C 6 alkenyl, C 2 -C 6 alkynyl, C 3 -C 8 cycloalkyl, C 6 -C 10 aryl, 4 to 7-membered heterocycloalkyl, or 5- or 6-membered heteroaryl, and each of R S4 and R S5 is optionally substituted with one or more -Q 5 -T 5 , wherein Q 5 is a bond, C(O), C(O)NR k , NR k C(O), S(O) 2 , or C 1 -C 3 alkyl linker, R k being H or C 1 -C 6 alkyl, and T 5 is H, halo, C 1 -C 6 alkyl, hydroxyl, cyano, C 1 -C 6 alkoxyl, amino, mono-C 1 -C 6 alkylamino, di-C 1 -C 6 alkylamino, C 3 -C 8 cycloalkyl, C 6 -C 10 aryl, 4 to 7-membered heterocycloalkyl, 5- or 6-membered heteroaryl, or S(O) q R q in which q is 0, 1, or 2 and R q is C 1 -C 6 alkyl, C 2 -C 6 alkenyl, C 2 -C 6 alkynyl, C 3 -C 8 cycloalkyl, C 6 -C 10 aryl, 4 to 7-membered heterocycloalkyl, or 5- or 6-membered heteroaryl, and T 5 is optionally substituted with one or more substituents selected from the group consisting of halo, C 1 -C 6 alkyl, hydroxyl, cyano, C 1 -C 6 alkoxyl, amino, mono-C 1 -C 6 alkylamino, di-C 1 -C 6 alkylamino, C 3 -C 8 cycloalkyl, C 6 -C 10 aryl, 4 to 7-membered heterocycloalkyl, and 5- or 6-membered heteroaryl except when T 5 is H, halo, hydrox

Assignees

• Epizyme Inc

Inventors

• Ribich Scott
• Thomenius Michael

Classifications

• A61K31/5377 Primary

  not condensed and containing further heterocyclic rings, e.g. timolol · CPC title

• A61K9/0019

  Injectable compositions; Intramuscular, intravenous, arterial, subcutaneous administration; Compositions to be administered through the skin in an invasive manner (non-active ingredients are additionally classified in A61K47/00) · CPC title

• A61K9/0053

  Mouth and digestive tract, i.e. intraoral and peroral administration · CPC title

• A61P35/04

  specific for metastasis · CPC title

• A61K45/06 Primary

  Mixtures of active ingredients without chemical characterisation, e.g. antiphlogistics and cardiaca · CPC title