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Abstract ND10: Discovery of MRT-2359, an orally bioavailable GSPT1 molecular glue degrader, for MYC-driven cancers

肺癌 医学 癌症研究 癌症 内科学 肿瘤科
作者
Owen B. Wallace,Gérald Gavory,Mahmoud Ghandi,Anne-Cecile d’Alessandro,Débora Bonenfant,Maciej Cabanski,Lisa Cantagallo,Agustin Chicas,Qian Chen,Anna Diesslin,Christopher King,Vittoria Massafra,Rajiv Narayan,Arnaud Osmont,Dave Peck,Carolina Perdomo Ortiz,Martin Schillo,Ambika Singh,Ralph Tiedt,Simone Tortoioli,Silvia Buonamici,Markus Warmuth,Filip Jankú,Bernhard Fasching
出处
期刊:Cancer Research [American Association for Cancer Research]
卷期号:83 (7_Supplement): ND10-ND10
标识
DOI:10.1158/1538-7445.am2023-nd10
摘要

Abstract MYC transcription factors have been demonstrated to be drivers of many cancers, yet have remained recalcitrant to new drug development. We hypothesized that MYC-driven cancer cell lines are addicted to protein translation, and therefore are vulnerable to the loss of the translation termination factor, GSPT1. We have discovered MRT-2359, a selective GSPT1 molecular glue degrader, that demonstrates potent and preferential antiproliferative activity in MYC-driven cell lines, such as high N- and L-MYC mRNA expressing non-small cell lung cancer (NSCLC) and small cell lung cancer (SCLC) lines. MRT-2359 has been optimized for differential toxicity between MYC- and non-MYC-driven cancer cell lines, kinetics and depth of degradation, oral bioavailability, and in vivo efficacy. The anti-tumor activity of MRT-2359 was assessed in more than 80 lung patient-derived xenografts (PDXs) that confirmed the preferential anti-tumor activity in N- and L-MYC high NSCLC and SCLC PDXs when dosed orally daily or intermittently. Similar levels of activity were also observed in neuroendocrine lung cancer PDXs and lymphoma models. Oral MRT-2359 is currently in a Phase 1/2 clinical trial in selected cancer patients with MYC-driven NSCLC, SCLC, high grade neuroendocrine cancers and diffuse large B-cell lymphoma (NCT05546268). Citation Format: Owen B. Wallace, Gerald Gavory, Mahmoud Ghandi, Anne-Cecile d’Alessandro, Debora Bonenfant, Maciej Cabanski, Lisa Cantagallo, Agustin Chicas, Qian Chen, Anna Diesslin, Christopher King, Vittoria Massafra, Rajiv Narayan, Arnaud Osmont, Dave Peck, Carolina Perdomo Ortiz, Martin Schillo, Ambika Singh, Ralph Tiedt, Simone Tortoioli, Silvia Buonamici, Markus Warmuth, Filip Janku, Bernhard Fasching. Discovery of MRT-2359, an orally bioavailable GSPT1 molecular glue degrader, for MYC-driven cancers [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2023; Part 1 (Regular and Invited Abstracts); 2023 Apr 14-19; Orlando, FL. Philadelphia (PA): AACR; Cancer Res 2023;83(7_Suppl):Abstract nr ND10.
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