Investment Rating - The report maintains a "Buy" rating for multiple companies in the pharmaceutical and biotech industry, indicating a positive outlook on their growth potential and market performance [6]. Core Insights - The ASCO conference showcased significant advancements in domestic innovative drugs, highlighting the competitive edge of Chinese pharmaceutical companies in the global market [4][12]. - The report emphasizes the clinical value and market potential of several key drugs presented at ASCO, including promising results from various companies [4][12]. Summary by Relevant Sections Domestic Key Research Overview - BaiLi Tianheng's BL-B01D1 demonstrated a 35.3% confirmed overall response rate (cORR) in patients with non-small cell lung cancer (NSCLC) and small cell lung cancer (SCLC) [18]. - DiZhe Pharmaceutical's DZD6008 achieved over 80% overall response rate (ORR) in heavily treated chronic lymphocytic leukemia (CLL) patients, indicating its potential as a new treatment option [4][12]. - FuHong HanLin's PD-L1 ADC showed excellent performance in immune-resistant squamous NSCLC patients, while HLX22 is expected to redefine first-line treatment for advanced gastric cancer [4][12]. - KeLun BoTai's sac-TMT data confirmed long-term survival benefits in third-line EGFR-mutant NSCLC and first-line triple-negative breast cancer (TNBC) [4][12]. - KangNing JieRui's HER2 bispecific ADC demonstrated comparable efficacy and better safety than existing treatments [4][12]. - MaiWei Biotech's 9MW2821 combined with toripalimab is anticipated to be a strong contender in first-line urothelial carcinoma treatment [4][12]. - SanSheng Pharmaceutical updated data on SSGJ-707 for first-line treatment of wild-type NSCLC, with a significant partnership with Pfizer [4][12]. - XinDa Biotech's IBI363 showed potential in activating "cold" tumors, aiming to become a cornerstone drug in immunotherapy [4][12]. - YaSheng Pharmaceutical's Lisaftoclax achieved positive results in patients resistant to venetoclax, filling a treatment gap in myeloid malignancies [4][12]. - ZhengDa TianQing's "DeFu combination" was selected for LBA, potentially offering a new first-line treatment for PD-L1 positive NSCLC [4][12]. - ZeJing Pharmaceutical and ZaiDing Pharmaceutical presented excellent data on ZG006 and ZL-1310 for late-line SCLC treatment, showcasing the global competitiveness of domestic drugs [4][12].

Group 1 - The core viewpoint of the report is that Guangfa Securities is optimistic about the differentiated biopharmaceutical platform of CStone Pharmaceuticals-B (09966) and the development potential of its ADC drugs, which have shown preliminary clinical efficacy [1] - The company was established in 2015 and focuses on the development, production, and commercialization of innovative anti-tumor biologics, with a highly differentiated internal pipeline covering anti-tumor drugs at various research stages [1] - The first product, KN035 (Envafolimab injection), was launched in November 2021, marking the company's entry into the commercialization phase [1] Group 2 - CStone Pharmaceuticals has developed several globally leading biopharmaceutical technology platforms, including glycoengineered conjugation platform, linker payload platform, bispecific antibody platform, and subcutaneous high-concentration formulation platform, which have differentiated therapeutic advantages [1] - The glycoengineered conjugation platform reduces the production cost of ADC drugs while effectively minimizing toxin release in the circulatory system, enhancing drug safety [1] - Products developed based on this platform, JSKN003 and JSKN016, have entered clinical stages, and the company has upgraded the dual payload technology platform with corresponding products expected to enter clinical trials [1] Group 3 - The HER2 bispecific antibody KN026 is undergoing registration clinical studies for second-line gastric cancer, first-line breast cancer, and neoadjuvant therapy, with a promising path to market [2] - The HER2 bispecific ADC JSKN003 is in phase III clinical trials for breast cancer and platinum-resistant ovarian cancer, demonstrating competitive efficacy in early clinical studies [2] - The HER3/TROP2 bispecific ADC JSKN016 has initiated clinical trials for lung cancer and breast cancer, indicating a broad potential market, while new generation ADCs like JSKN021 (dual payload) and JSKN022 are expected to advance to clinical stages quickly [2]