Trametinib dimethyl sulfoxide

Gained global registrational clarity for naporafenib and achieved key clinical milestones for naporafenib, ERAS-007, and ERAS-801 Multiple data readouts expected in 2024 for naporafenib (SEACRAFT-1), ERAS-007 (HERKULES-3), and ERAS-801 (THUNDERBBOLT-1) and planned initiation of pivotal SEACRAFT-2 trial Robust balance sheet with cash, cash equivalents, and marketable securities of $322 million as of December 31, 2023 Erasca to host R&D update conference call and webcast Thursday, March 28, 2024 at 8:30 am ET SAN DIEGO, March 27, 2024 (GLOBE NEWSWIRE) -- Erasca, Inc., (Nasdaq: ERAS), a clinical-stage precision oncology company singularly focused on discovering, developing, and commercializing therapies for patients with RAS/MAPK pathway-driven cancers, today provided business updates and reported financial results for the fiscal quarter and full year ended December 31, 2023. “In 2023, our three clinical candidates reached important clinical and regulatory milestones, including gaining regulatory clarity to allow us to begin our global Phase 3 study for naporafenib, demonstrating encouraging therapeutic potential for ERAS-007, and achieving Fast Track Designation (FTD) for each of naporafenib in combination with trametinib, and ERAS-801,” said Jonathan E. Lim, M.D., Erasca’s chairman, CEO, and co-founder. “For ERAS-007, we presented promising preliminary clinical activity at ASCO 2023 in combination with encorafenib and cetuximab (EC) in EC-naïve patients with BRAF-mutant (BRAFm) colorectal cancer (CRC), and we expect to share additional data in the first half of 2024. We also advanced our central nervous system (CNS)-penetrant EGFR inhibitor ERAS-801 to further characterize activity in patients with EGFR-amplified recurrent glioblastoma (GBM), which represents approximately 85% of all patients with EGFR-altered GBM.” Dr. Lim continued, “In 2024, we have several key catalysts for naporafenib, which is currently being developed in two trials, SEACRAFT-1, which is ongoing in patients with RAS Q61X tissue agnostic solid tumors, and SEACRAFT-2, which is expected to initiate in the first half of 2024 in patients with NRAS-mutant (NRASm) melanoma. We are excited by our recent pooled analysis of the median overall survival (mOS) data from the Phase 1b and Phase 2 trials for naporafenib plus trametinib in patients with NRASm melanoma. These data showed an mOS of approximately 13-14 months, which nearly doubles the mOS observed for historical control observations for cytotoxic chemotherapy and single agent MEK inhibitors in patients similar to the SEACRAFT-2 patient population.” Research and Development (R&D) Highlights Achieved Key Milestones for Naporafenib and ERAS-801 and Prioritized Pipeline: In November 2023, Erasca gained alignment with US and EU health authorities for the pivotal Phase 3 SEACRAFT-2 trial design that provided clarity on a registrational pathway for naporafenib plus trametinib in patients with NRASm melanoma. Erasca also completed dose escalation and identified a maximum tolerated dose (MTD) for ERAS-801, supporting the ongoing enrollment of efficacy signal-seeking expansion cohorts in patients with EGFR-altered GBM. In addition, a strategic pipeline prioritization sharpened Erasca’s focus on existing programs that we believe have the highest probability of success for patients. Analysis of mOS Data for Naporafenib: A pooled analysis of patients with NRASm melanoma dosed with the combination of naporafenib and trametinib at two different doses across two different trials (Phase 1b and Phase 2) showed an mOS of 13.0 and 14.1 months, respectively. The pooled dataset at each dose compares favorably relative to historical benchmarks. Corporate Highlights Granted Fast Track Designation for Naporafenib: In December 2023, the United States Food and Drug Administration (FDA) granted FTD to naporafenib in combination with trametinib (MEKINIST®) for the treatment of adult patients with unresectable or metastatic melanoma who have progressed on, or are intolerant to, an anti‑programmed death-1 (ligand 1) (PD‑(L)1)-based regimen, and whose tumors contain an NRAS mutation. Entered into two CTCSAs with Novartis for Naporafenib Combination in SEACRAFT-1 and SEACRAFT-2: In February 2024, Erasca announced two clinical trial collaboration and supply agreements (CTCSAs) with Novartis pursuant to which Novartis will provide its MEK inhibitor trametinib at no cost to Erasca in connection with two clinical trials evaluating naporafenib in combination with trametinib for the treatment of patients with RAS Q61X solid tumors as part of the ongoing Phase 1b SEACRAFT-1 trial, and for the treatment of patients with previously treated NRASm unresectable or metastatic melanoma as part of the planned randomized pivotal Phase 3 SEACRAFT-2 trial. Key Upcoming Anticipated Milestones SEACRAFT-1: Phase 1b trial for naporafenib (pan-RAF inhibitor) plus trametinib in patients with RAS Q61X tissue agnostic solid tumors Initial Phase 1b combination data expected between the second and fourth quarters of 2024 SEACRAFT-2: Randomized pivotal Phase 3 trial for naporafenib plus trametinib in patients with NRASm melanoma Phase 3 trial initiation expected in the first half of 2024 HERKULES-3: Phase 1b trial for ERAS-007 (ERK inhibitor) plus encorafenib (BRAFTOVI®) + cetuximab (ERBITUX®) (EC) in EC-naïve patients with BRAFm CRC Phase 1b combination data expected in the first half of 2024 THUNDERBBOLT-1: Phase 1 trial for ERAS-801 (CNS-penetrant EGFR inhibitor) in patients with GBM Initial Phase 1 monotherapy data expected in 2024 Fourth Quarter and Full Year 2023 Financial Results Cash Position: Cash, cash equivalents, and marketable securities were $322.0 million as of December 31, 2023, compared to $435.6 million as of December 31, 2022. Research and Development (R&D) Expenses: R&D expenses were $24.8 million for the quarter ended December 31, 2023, compared to $29.4 million for the quarter ended December 31, 2022. The decrease was primarily driven by decreases in expenses incurred in connection with clinical trials, preclinical studies, discovery activities, and outsourced services and consulting fees, as a result of pipeline prioritization. R&D expenses were $103.8 million for the full year ended December 31, 2023, compared to $112.5 million for the full year ended December 31, 2022. The full year ended December 31, 2022 also included $102.0 million of in-process R&D expenses related to upfront and milestone payments and stock issuances under certain of our asset acquisition and license agreements. General and Administrative (G&A) Expenses: G&A expenses were $9.1 million for the quarter ended December 31, 2023, compared to $8.7 million for the quarter ended December 31, 2022. The increase was primarily driven by personnel costs, including stock-based compensation, partially offset by decreases in insurance costs and legal fees. G&A expenses were $37.7 million for the full year ended December 31, 2023, compared to $33.0 million for the full year ended December 31, 2022. Net Loss: Net loss was $29.7 million for the quarter ended December 31, 2023, compared to $135.3 million, inclusive of the $100.0 million of in-process R&D expenses recorded in connection with the Novartis license agreement, for the quarter ended December 31, 2022. For the full year ended December 31, 2023, Erasca reported a net loss of $125.0 million, or $(0.83) per basic and diluted share, compared to a net loss of $242.8 million, inclusive of the $100.0 million of in-process R&D expenses recorded in connection with the Novartis license agreement, or $(1.99) per basic and diluted share, for the full year ended December 31, 2022. Conference Call and Webcast Information Erasca will hold a conference call and webcast on Thursday, March 28, 2024 at 8:30 am ET. The webcast link for the conference call can be found here. The dial-in number is 1-877-407-0792 (U.S./Canada) or 1-201-689-8263 (international). The conference ID for all callers is 13745382. The live webcast and replay may be accessed by visiting Erasca’s website at Erasca.com/events. About Erasca At Erasca, our name is our mission: To erase cancer. We are a clinical-stage precision oncology company singularly focused on discovering, developing, and commercializing therapies for patients with RAS/MAPK pathway-driven cancers. Our company was co-founded by leading pioneers in precision oncology and RAS targeting to create novel therapies and combination regimens designed to comprehensively shut down the RAS/MAPK pathway for the treatment of cancer. We have assembled one of the deepest RAS/MAPK pathway-focused pipeline in the industry. We believe our team’s capabilities and experience, further guided by our scientific advisory board which includes the world’s leading experts in the RAS/MAPK pathway, uniquely position us to achieve our bold mission of erasing cancer. Cautionary Note Regarding Forward-Looking Statements Erasca cautions you that statements contained in this press release regarding matters that are not historical facts are forward-looking statements. The forward-looking statements are based on our current beliefs and expectations and include, but are not limited to: our expectations regarding the potential therapeutic benefits of our product candidates, including naporafenib, ERAS-007, and ERAS-801; the planned advancement of our development pipeline, including the anticipated timing of data readouts for the SEACRAFT-1 trial, the HERKULES-3 trial, and the THUNDERBBOLT-1 trial; the anticipated timing for the initiation of the SEACRAFT-2 trial; and our ability to successfully prioritize our pipeline portfolio to focus on existing programs that we believe have the highest probability of success; our ability to realize the benefits of the CTCSAs described in this press release. Actual results may differ from those set forth in this press release due to the risks and uncertainties inherent in our business, including, without limitation: our approach to the discovery and development of product candidates based on our singular focus on shutting down the RAS/MAPK pathway, a novel and unproven approach; we only have three product candidates in clinical development and all of our other development efforts are in the preclinical or development stage; the analysis of pooled Phase 1 and Phase 2 naporafenib plus trametinib data covers two clinical trials with different designs and inclusion criteria, which cannot be directly compared, and therefore may not be a reliable indicator of mOS data; due to differences between trial designs and subject characteristics, comparing data across different trials may not be a reliable indicator of data; preliminary results of clinical trials are not necessarily indicative of final results and one or more of the clinical outcomes may materially change as patient enrollment continues, following more comprehensive reviews of the data and more patient data become available; we have not completed any clinical trials of naporafenib and are reliant on data generated by Novartis in prior clinical trials conducted by it; our planned SEACRAFT trials may not support the registration of naporafenib; our assumptions around which programs may have a higher probability of success may not be accurate, and we may expend our limited resources to pursue a particular product candidate and/or indication and fail to capitalize on product candidates or indications with greater development or commercial potential; potential delays in the commencement, enrollment, and completion of clinical trials and preclinical studies; our dependence on third parties in connection with manufacturing, research, and preclinical and clinical testing; unexpected adverse side effects or inadequate efficacy of our product candidates that may limit their development, regulatory approval, and/or commercialization, or may result in recalls or product liability claims; unfavorable results from preclinical studies or clinical trials; the inability to realize any benefits from our current licenses, acquisitions, and collaborations, and any future licenses, acquisitions, or collaborations, and our ability to fulfill our obligations under such arrangements; regulatory developments in the United States and foreign countries; later developments with the FDA or EU health authorities may be inconsistent with the feedback received to date regarding our development plans and trial designs; FTD may not lead to a faster development or regulatory review or approval process, and does not increase the likelihood that our product candidates will receive marketing approval; our ability to fund our operating plans with our current cash, cash equivalents, and marketable securities; and other risks described in our prior filings with the Securities and Exchange Commission (SEC), including under the heading “Risk Factors” in our annual report on Form 10-K for the year ended December 31, 2023, and any subsequent filings with the SEC. You are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the date hereof, and we undertake no obligation to update such statements to reflect events that occur or circumstances that exist after the date hereof. All forward-looking statements are qualified in their entirety by this cautionary statement, which is made under the safe harbor provisions of the Private Securities Litigation Reform Act of 1995. Erasca, Inc. Selected Consolidated Balance Sheet Data (In thousands) (Unaudited) December 31, December 31, 2023 2022 Balance Sheet Data: Cash, cash equivalents, and marketable securities $ 321,992 $ 435,620 Working capital 294,520 395,806 Total assets 395,297 514,909 Accumulated deficit (606,013 ) (480,971 ) Total stockholders’ equity 316,686 411,853 Erasca, Inc. Consolidated Statements of Operations and Comprehensive Loss (In thousands, except share and per share amounts) (Unaudited) Three months ended December 31, Year ended December 31, 2023 2022 2023 2022 Operating expenses: Research and development $ 24,805 $ 29,356 $ 103,821 $ 112,457 In-process research and development — 100,000 — 102,000 General and administrative 9,066 8,722 37,704 32,993 Total operating expenses 33,871 138,078 141,525 247,450 Loss from operations (33,871 ) (138,078 ) (141,525 ) (247,450 ) Other income (expense) Interest income 4,237 2,878 16,712 4,902 Other expense, net (67 ) (50 ) (229 ) (257 ) Total other income (expense), net 4,170 2,828 16,483 4,645 Net loss $ (29,701 ) $ (135,250 ) $ (125,042 ) $ (242,805 ) Net loss per share, basic and diluted $ (0.20 ) $ (1.06 ) $ (0.83 ) $ (1.99 ) Weighted-average shares of common stock used in computing net loss per share, basic and diluted 150,732,123 127,540,712 150,184,994 122,024,848 Other comprehensive income (loss): Unrealized gain (loss) on marketable securities, net 652 338 1,118 (879 ) Comprehensive loss $ (29,049 ) $ (134,912 ) $ (123,924 ) $ (243,684 ) MEKINIST® is a registered trademark owned by or licensed to Novartis AG, its subsidiaries, or affiliates. BRAFTOVI® is a registered trademark owned by or licensed to Pfizer Inc., its subsidiaries, or affiliates. ERBITUX® is a registered trademark owned by or licensed to Eli Lilly and Company, its subsidiaries, or affiliates. Contact: Joyce Allaire LifeSci Advisors, LLC jallaire@lifesciadvisors.com Source: Erasca, Inc.

近日，国家药品监督管理局（NMPA）官方网站公示，通过优先审评审批程序附条件批准科州制药1类新药妥拉美替尼胶囊（商品名：科露平）上市，适用于含抗PD-1/PD-L1治疗失败的NRAS突变的晚期黑色素瘤患者。该药物是全球首个且唯一获批针对NRAS突变晚期黑色素瘤适应症的MEK抑制剂，也是我国自主研发的首款MEK抑制剂。关于妥拉美替尼妥拉美替尼（tunlametinib）是一种新的针对NRAS突变的ATP非竞争性MEK抑制剂，可与RAS-RAF-MEK-ERK信号通路中的MEK1/2结合，阻断下游信号通路的传导，从而抑制肿瘤的生长。与传统MEK抑制剂相比，该产品最大的优势在于没有蓄积性。本次获批是基于一项单臂、多中心关键II期注册临床研究结果，旨在评价妥拉美替尼（HL-085）治疗NRAS突变晚期黑色素瘤患者的有效性及安全性。截至2023年02月19日，经独立评审委员会评估，有效性分析集中经确认的客观缓解率（ORR）为34.7%，中位无进展生存期（mPFS）为4.2个月，1年OS率为57.2%，既往接受过免疫治疗的ORR达到39.1%。最常见的3级及以上与治疗相关不良事件包括血肌酸激酶升高、腹泻、水肿等，整体安全性可控可管理，研究过程中无受试者因研究药物导致死亡。目前，妥拉美替尼还在开发用于治疗NRAS突变晚期黑色素、联合BRAF抑制剂治疗BRAF V600突变的转移性非小细胞肺癌，以及转移性结直肠癌，未来必将惠及更多RAS、RAF突变的实体瘤患者。关于MEK抑制剂丝裂原活化蛋白激酶（MAPK）的表达上调通常是致癌转换和癌症发展的标志。在细胞中，多种细胞信号分子与酪氨酸受体结合，控制着细胞中RAS的激活，随后根据级联信号方式磷酸化Raf、激活MEK（MEK1 和MEK2）及其唯一底物ERK（ERK1和ERK2），通过ERK作用于下游的不同底物调节细胞增殖、侵袭、血管生成及凋亡抵抗等一系列关键的细胞活动。在肿瘤细胞中，MAPK通路异常与其上游的K-ras 或B-raf 突变有关，大多数恶性黑色素瘤、乳头状甲状腺癌中都存在B-raf 突变，这种突变90% 以上是B-raf基因1796 位的胸苷酸被腺苷酸替代（T1796A），引起B-raf 蛋白第600 位的缬氨酸突变为谷氨酸（V600E），突变后的B-raf 可以不依赖于K-ras 直接激活MEK。所以单一的RAS或者RAF 抑制剂的临床疗效有限，而MEK抑制剂对于无论是K-ras 还是B-raf 突变导致的恶性肿瘤均有显著疗效。目前，全球已上市5款MEK1/2抑制剂，除了妥拉美替尼外，还包括阿斯利康的司美替尼（Selumetinib）外，还有诺华的曲美替尼(Trametinib)、罗氏/Exelixis的考比替尼（Cobimetinib）、辉瑞的比美替尼（Binimetinib）。除此以外，还有60余款MEK抑制剂在研。部分处于临床以上阶段的MEK抑制剂关于NRAS突变晚期黑色素NRAS 突变可发生于多种肿瘤，通过多途径激活细胞内信号传导通路诱导细胞周期失调，导致肿瘤细胞增殖。NRAS 突变在高加索人黑色素瘤中的发生率约15% ～ 20%，在黄种人中约10%。NRAS 突变的黑色素瘤患者原发灶Breslow 厚度深，有丝分裂率高，疾病进展快，预后差。因为RAS蛋白表面平滑，缺乏结合药物的疏水口袋，尚无特异性靶向药物，晚期治疗手段有限。研究显示，亚洲NRAS突变黑色素瘤患者接受抗PD-1治疗整体ORR约为6.1%，全球尚无靶向药物获批，临床急需开发有效的抗肿瘤治疗药物。关于科州药业科州药业致力于在肿瘤、自由基相关疾病等治疗领域开发创新药物。公司管线丰富，所有在研项目旨在瞄准中国乃至全球尚未满足的临床需求，研发具有“Best-in-Class”潜力的国际新型原创小分子药物，以填补国内外空白。参考资料1、NMPA、公司官网2、蒯梦妮,乐祥阳,李乾斌等.MEK抑制剂的研究进展[J].肿瘤药学,2017,7(05):513-522.免责声明“药渡”公众号所转载该篇文章来源于其他公众号平台，主要目的在于分享行业相关知识，传递当前最新资讯。图片、文章版权均属于原作者所有，如有侵权，请及时告知，我们会在24小时内删除相关信息。微信公众号的推送规则又双叒叕改啦，如果您不点个“在看”或者没设为"星标"，我们可能就消散在茫茫文海之中~点这里，千万不要错过药渡的最新消息哦！