Investment Rating - The report maintains a "Buy" rating for the company, Sihuan Pharmaceutical (02096), with a target price of HKD 14.3, and continues to recommend it as a key focus in the industry [1]. Core Insights - The report has raised the profit forecast for the company for the years 2025-2027 by 6-11% and is optimistic about the potential for more overseas transactions in the short term, particularly focusing on targets such as CDH6 and CDH17, which have recently garnered significant attention [1]. - At the ASCO 2025 conference, the company's oncology pipeline showcased 18 research studies. Key studies to watch include: 1. The final analysis of overall survival (OS) in a Phase III study of Suviscita monoclonal antibody for platinum-resistant ovarian cancer, with median OS of 15.3 months for the treatment group compared to 14 months for the control group, with approval expected within the year [1]. 2. The results of an Ib phase study on SIM0270 combined with Palbociclib for second-line or higher ER+/HER2- breast cancer, showing an overall response rate (ORR) of 41.5% and clinical benefit rate (CBR) of 82.5%, with rates of 87.5% and 100% respectively in baseline ESR1 mutation patients. The company is currently conducting a Phase III study to evaluate the efficacy of SIM0270 combined with Everolimus in CDK4/6 inhibitor-treated ER+/HER2- breast cancer [1].

ASCO 2025 大会公布多项重要临床数据：ASCO 2025 大会上，公司肿瘤管线共有18 项研究获展示，涵 盖苏维西塔单抗、SIM0270（口服SERD）、科赛拉等重点品种。我们建议重点关注：1）苏维西塔单抗 治疗铂耐药卵巢癌III 期研究的OS 最终分析，治疗组和对照组的中位OS 分别达到15.3 个月/14.0 个月 （HR 0.768，95% CI 0.595-0.991，P=0.0304），该适应症正处于上市审评阶段，我们预计将于年内获 批。考虑到贝伐珠在该适应症上并未取得统计学显著的OS 改善（III 期AURELIA 研究），我们认为该 结果进一步验证苏维西塔相比贝伐珠的me-better 潜质。2）SIM0270 + 哌柏西利治疗二线级以上 ER+/HER- 乳腺癌的Ib 期研究结果，ORR 和CBR 分别达到41.5%/82.5%，在基线ESR1 突变患者中则达 到87.5%/100%。目前公司正在开展一项III 期研究，评估SIM0270 +依维莫司治疗CDK4/6 抑制剂经治 ER+/HER2- 乳腺癌的疗效。此外，公司曾在4 月的AACR 大会上公布了多款处于临床早期/临床前ADC ...