Development of MTX-211 for the Treatment of KRAS Mutant Colorectal Cancer

项目总结 Mekantic Treateutics寻求设计、发现和开发选择性抑制的抗癌药物 多种致癌途径。它的先导物质MTX-211是与Leopold合作发现的 密歇根大学实验室。该项目的总体目标是方便地推进MTX- 211用于治疗KRAS突变的结直肠癌(CRC)。每年&gt；13万 新的患者被诊断为结直肠癌。在诊断时，大约20%的患者 患有转移性疾病的患者。目前，还没有被批准的治疗转移性肿瘤的方法 存在KRAS激活突变的结直肠癌患者。MTX-211是一种一流的高选择性双重抑制剂 PI3K和EGFR激酶，旨在攻击KRAS致癌信号，使用两个正交 机械装置。因此，它在单个分子中体现了一种组合方法。第一阶段的目标是集中 优化合成工艺放大生产MTX-211并进行中试 6例诊断为KRAS突变患者的原代异种移植模型的建立 CRC。所有里程碑都已实现，为追求临床应用提供了概念验证 专门针对KRAS突变CRC种群的MTX-211的开发路径。在第二阶段， 我们建议在扩大的疗效试验中测试更广泛的KRAS突变CRC模型 结合分子图谱以确定与治疗结果相关的预后标记物。 同时，我们建议进行早期安全研究，以进一步降低MTX-211的风险，并加强 推进未来的IND毒理学研究的理由。

PROJECT SUMMARY Mekanistic Therapeutics seeks to design, discover, and develop anti-cancer agents that selectively inhibit multiple oncogenic pathways. Its lead agent MTX-211 was discovered in collaboration with the Leopold laboratory at University of Michigan. The overall objective of this project is to expediently advance MTX- 211 into development for the treatment of KRAS mutant colorectal cancer (CRC). Every year >130,000 new patients are diagnosed with colorectal cancer. At the time of diagnosis, approximately 20% of these patients present with metastatic disease. Currently, there are no approved treatments for metastatic CRC patients with activating mutations in KRAS. MTX-211 is a first-in-class highly selective dual inhibitor of PI3K and EGFR kinases, designed to attack KRAS oncogenic signaling using two orthogonal mechanisms. As such, it embodies a combination approach in a single molecule. Phase I aims focused on optimizing the synthetic process to scale-up production of MTX-211 and conducting a pilot mouse trial of primary xenograft models established from six different patients diagnosed with KRAS mutant CRC. All milestones were achieved providing preclinical proof-of-concept for pursuit of a clinical development path for MTX-211 that specifically targets the KRAS mutant CRC population. In Phase II, we propose to test a broader panel of KRAS mutant CRC models in an expanded efficacy trial that incorporates molecular profiling to identify prognostic markers that correlate with therapeutic outcome. At the same time, we propose to carry out early safety studies to further de-risk MTX-211 and strengthen the case for moving forward to future IND-enabling toxicology studies.