TWI786072B - Cd-73介導免疫抑制之抑制劑 - Google Patents

Cd-73介導免疫抑制之抑制劑 Download PDF

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TWI786072B
TWI786072B TW106139852A TW106139852A TWI786072B TW I786072 B TWI786072 B TW I786072B TW 106139852 A TW106139852 A TW 106139852A TW 106139852 A TW106139852 A TW 106139852A TW I786072 B TWI786072 B TW I786072B
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cancer
compound
pharmaceutically acceptable
hydrate
acceptable salt
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TW201822772A (zh
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傑洛斯勒 卡里斯卡
肯尼斯 V 勞森
曼摩漢 瑞迪 賴勒提
艾瑞克 艾倫 林德西
迪倫 哈汀 邁爾斯
艾瑞克 紐康
傑 派翠克 包爾斯
荷森 厄爾 莎瑞菲
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美商阿克思生物科學有限公司
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TW106139852A 2016-11-18 2017-11-17 Cd-73介導免疫抑制之抑制劑 TWI786072B (zh)

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US201662424241P 2016-11-18 2016-11-18
US62/424,241 2016-11-18

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TWI786072B true TWI786072B (zh) 2022-12-11

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US (1) US11267845B2 (enExample)
EP (1) EP3541396A4 (enExample)
JP (1) JP7150712B2 (enExample)
CN (1) CN110022881B (enExample)
TW (1) TWI786072B (enExample)
WO (1) WO2018094148A1 (enExample)

Families Citing this family (44)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018094148A1 (en) 2016-11-18 2018-05-24 Arcus Biosciences, Inc. Inhibitors of cd73-mediated immunosuppression
IL269150B2 (en) 2017-03-16 2025-04-01 Innate Pharma Cancer treatment preparations and methods
WO2018208980A1 (en) 2017-05-10 2018-11-15 Oric Pharmaceuticals, Inc. Cd73 inhibitors
BR112020006809A2 (pt) 2017-10-06 2020-10-06 Innate Pharma anticorpos, agente, uso, composto, composição farmacêutica, kits e composição ou uso
US11377469B2 (en) 2017-11-03 2022-07-05 Oric Pharmaceuticals, Inc. CD73 inhibitors
CN112004541A (zh) 2018-03-09 2020-11-27 艾库斯生物科学有限公司 肠道外给药的免疫增强药物
IL304348B2 (en) 2018-04-30 2024-08-01 Oric Pharmaceuticals Inc CD73 inhibitors
WO2019232319A1 (en) 2018-05-31 2019-12-05 Peloton Therapeutics, Inc. Compositions and methods for inhibiting cd73
DK3807316T3 (da) 2018-06-18 2024-07-29 Innate Pharma Sammensætninger og fremgangsmåder til behandling af cancer
CN112638389A (zh) * 2018-08-28 2021-04-09 江苏恒瑞医药股份有限公司 Cd73抑制剂及其治疗用途
MX2021002878A (es) 2018-09-11 2021-08-16 Risen Suzhou Pharma Tech Co Ltd Inhibidores de cd73 y usos farmaceuticos de los mismos.
US11530234B2 (en) 2018-09-11 2022-12-20 Risen (Suzhou) Pharma Tech Co., Ltd. CD73 inhibitors and pharmaceutical uses thereof
CN110885352B (zh) * 2018-09-11 2023-02-24 润佳(苏州)医药科技有限公司 Cd73抑制剂及其药学应用
MX2021008094A (es) 2019-01-11 2021-09-21 Omeros Corp Metodos y composiciones para el tratamiento del cancer.
CN112955444B (zh) * 2019-01-22 2023-12-12 江苏恒瑞医药股份有限公司 一种新型的小分子cd73抑制剂、其制备方法及其在医药上的应用
CN113795267A (zh) * 2019-03-12 2021-12-14 艾库斯生物科学有限公司 致癌基因驱动的癌症的治疗
WO2020205527A1 (en) 2019-03-29 2020-10-08 Arcus Biosciences, Inc. Treatment of cancer utilizing an identified adenosine fingerprint
JP7557522B2 (ja) 2019-07-16 2024-09-27 オリック ファーマシューティカルズ,インク. Cd73阻害剤
PL4051688T3 (pl) 2019-10-30 2025-09-22 Oric Pharmaceuticals, Inc. Inhibitory cd73
CN119118872A (zh) 2020-03-19 2024-12-13 艾库斯生物科学有限公司 作为HIF-2α抑制剂的四氢化萘和四氢喹啉化合物
MX2022015157A (es) 2020-06-02 2023-01-16 Arcus Biosciences Inc Anticuerpos para tigit.
AU2021389685A1 (en) * 2020-11-25 2023-07-06 Risen (Suzhou) Pharma Tech Co., Ltd. Cd73 inhibitors and pharmaceutical uses thereof
WO2022246179A1 (en) 2021-05-21 2022-11-24 Arcus Biosciences, Inc. Axl inhibitor compounds
EP4341261A1 (en) 2021-05-21 2024-03-27 Arcus Biosciences, Inc. Axl compounds
WO2023077046A1 (en) 2021-10-29 2023-05-04 Arcus Biosciences, Inc. Inhibitors of hif-2alpha and methods of use thereof
JP2025512384A (ja) 2022-04-13 2025-04-17 ギリアード サイエンシーズ, インコーポレイテッド Trop-2発現がんを治療するための併用療法
AU2023264591A1 (en) 2022-05-02 2024-11-07 Arcus Biosciences, Inc. Anti-tigit antibodies and uses of the same
JP2025520300A (ja) * 2022-06-17 2025-07-03 上海森輝医薬有限公司 シクロペンチルアデノシン誘導体及びその医薬的使用
WO2024015251A1 (en) 2022-07-15 2024-01-18 Arcus Biosciences, Inc. Inhibitors of hpk1 and methods of use thereof
EP4558501A1 (en) 2022-07-20 2025-05-28 Arcus Biosciences, Inc. Cbl-b inhibitors and methods of use thereof
CN119768155A (zh) 2022-09-14 2025-04-04 艾库斯生物科学有限公司 依曲地南的分散体
EP4602041A1 (en) 2022-10-14 2025-08-20 Arcus Biosciences, Inc. Hpk1 inhibitors and methods of use thereof
WO2024233360A1 (en) 2023-05-05 2024-11-14 Arcus Biosciences, Inc. Cbl-b inhibitors and methods of use thereof
CN116298323B (zh) * 2023-05-16 2023-08-22 南京联笃生物科技有限公司 一种用于诊断狼疮性肾炎的生物标志物及应用
EP4720055A1 (en) 2023-05-25 2026-04-08 Arcus Biosciences, Inc. Cbl-b inhibitors and methods of use thereof
WO2025054339A1 (en) 2023-09-08 2025-03-13 Arcus Biosciences, Inc. Triazolopyridine compounds as inhibitors of kit
WO2025072330A1 (en) 2023-09-26 2025-04-03 Arcus Biosciences, Inc. Kit inhibitor compounds and methods of use thereof
US20260116868A1 (en) 2023-10-06 2026-04-30 Arcus Biosciences, Inc. Cbl-b inhibitors and methods of use thereof
TW202523302A (zh) 2023-11-02 2025-06-16 美商阿克思生物科學有限公司 噻唑化合物及其使用方法
WO2025119278A1 (zh) * 2023-12-07 2025-06-12 无锡和誉生物医药科技有限公司 一种cd73抑制剂药物组合物,其制备方法和应用
WO2025137640A1 (en) 2023-12-22 2025-06-26 Gilead Sciences, Inc. Azaspiro wrn inhibitors
WO2025193759A1 (en) 2024-03-12 2025-09-18 Gilead Sciences, Inc. Solid forms of an azolopyrimidine compound
WO2025233264A1 (en) 2024-05-07 2025-11-13 Innate Pharma Use of cd73 blocking agents in combination with anti-cd20 x cd3 t cell engagers
WO2026006759A1 (en) 2024-06-28 2026-01-02 Arcus Biosciences, Inc. Pharmaceutical compositions, dosage forms, and methods of making and using same

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015164573A1 (en) * 2014-04-25 2015-10-29 Vitae Pharmaceuticals, Inc. Purine derivatives as cd73 inhibitors for the treatment of cancer

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5646128A (en) 1989-09-15 1997-07-08 Gensia, Inc. Methods for treating adenosine kinase related conditions
IL108523A0 (en) * 1993-02-03 1994-05-30 Gensia Inc Pharmaceutical compositions containing adenosine kinase inhibitors for preventing or treating conditions involving inflammatory responses and pain
US5569650A (en) * 1993-06-11 1996-10-29 Sloan-Kettering Institute For Cancer Research C-nucleoside isosters of analogs thereof and pharmaceutical compositions
BR9712285A (pt) * 1996-10-09 2001-11-20 Pharmasset Ltd Tetrafosfonato bicìclico de trianidridas
EP1860113A1 (en) * 2006-05-24 2007-11-28 Rheinische Friedrich-Wilhelms-Universität Bonn Ectonucleotidase inhibitors
US20110245088A1 (en) * 2010-04-05 2011-10-06 National Tsing Hua University Amide-based solution-phase derived library and method for screening thereof
US9090697B2 (en) 2013-03-15 2015-07-28 Bayer Healthcare Llc Methods for treating bleeding disorders
WO2017120508A1 (en) 2016-01-08 2017-07-13 Arcus Biosciences, Inc. Modulators of 5'-nucleotidase, ecto and the use thereof
WO2018094148A1 (en) 2016-11-18 2018-05-24 Arcus Biosciences, Inc. Inhibitors of cd73-mediated immunosuppression

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015164573A1 (en) * 2014-04-25 2015-10-29 Vitae Pharmaceuticals, Inc. Purine derivatives as cd73 inhibitors for the treatment of cancer

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EP3541396A1 (en) 2019-09-25
WO2018094148A1 (en) 2018-05-24
CN110022881A (zh) 2019-07-16
CN110022881B (zh) 2023-05-02
JP2019535720A (ja) 2019-12-12
EP3541396A4 (en) 2020-07-22
US11267845B2 (en) 2022-03-08
TW201822772A (zh) 2018-07-01
JP7150712B2 (ja) 2022-10-11
US20200062797A1 (en) 2020-02-27

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