Core Insights - The report by Zhongyou Securities focuses on the development of drugs in the autoimmune (self-immune) field, analyzing market demand, dual-antibody research priorities, and related investment targets [1][3]. Market Demand - The autoimmune field has a large patient base and long medication cycles, leading to the potential for blockbuster drugs, such as Dupilumab (Dupi), which has annual sales exceeding $10 billion. Key indications like atopic dermatitis (AD), asthma, and chronic obstructive pulmonary disease (COPD) have millions of affected patients, with nearly 9 million patients accessible to biological agents [1][2]. - Existing therapies still have unmet needs, including the need for long-acting formulations to reduce dosing frequency and improve efficacy, as well as expanding the patient population currently limited by screening criteria [1][2]. Dual-Antibody Research Focus - From the perspective of type 2 inflammation mechanisms, targets can be categorized into upstream (e.g., TSLP, IL-33) and downstream (e.g., IL-4, IL-13). Single-target monoclonal antibodies have limited efficacy, making dual antibodies an important direction due to their synergistic effects. In respiratory diseases, the TSLP×IL-13 (or IL-4R) dual antibody shows significant advantages, with clinical data indicating better reductions in FeNO and eosinophils compared to single-target drugs [2][3]. - The report emphasizes the potential of TSLP dual antibodies, highlighting leading global progress from companies like Sanofi (Lunsekimig) and Pfizer (triple antibodies), as well as domestic advancements from companies like Kangnuo (CM512) and Innovent (IBI3002) [2][3]. Investment Targets - Key investment targets include Kangnuo (CM512), which is leading in domestic progress, Innovent (IBI3002), and Qianxin Biotechnology (QX030N), with a focus on dual-antibody development [3]. Conclusion - Overall, TSLP dual antibodies in the autoimmune field show significant potential and may become the next generation of blockbuster drugs, driven by high patient numbers and unmet medical needs [1][3].

Investment Rating - The industry investment rating is "Strong Outperform" [2] Core Insights - The report emphasizes the potential of TSLP-targeted bispecific antibodies in addressing unmet needs in the autoimmune sector, particularly in asthma and atopic dermatitis [4][6] - The success of Dupilumab (Dupi) illustrates the demand for long-acting, multi-indication therapies in a market characterized by high patient numbers and chronic conditions [5][15] - The report identifies a significant market opportunity driven by high disease prevalence and the need for new therapeutic options [5][15] Summary by Sections High Disease Prevalence Creates Market Opportunities - The report highlights the large patient populations for conditions like asthma and atopic dermatitis, with millions affected, indicating a substantial market for new treatments [14][15] - Existing therapies have unmet needs, particularly in terms of long-acting formulations and improved efficacy [18][19] Focus on Bispecific Antibodies - The report suggests prioritizing bispecific antibodies that target TSLP and IL-13, as they have shown clinical promise in enhancing efficacy and expanding patient populations [6][22] - Companies such as 康诺亚, 信达生物, 荃信生物, and 联邦制药 are identified as key players in this space [6] Respiratory Diseases and Bispecific Antibodies - In the respiratory disease sector, particularly asthma and COPD, the report notes the need for long-term management and the potential of bispecific antibodies to address this challenge [25][37] - The market for asthma biologics is projected to reach approximately $7.5 billion by 2023, with significant growth expected [25][28] Clinical Data and Efficacy - The report discusses the clinical efficacy of various biologics, noting that Dupilumab and Tezepelumab have shown significant improvements in asthma control and quality of life [34][35] - The combination of TSLP and IL-4R is highlighted as a promising therapeutic strategy, with early clinical data supporting its potential [37][47]