Investment Rating - The report maintains a "Buy" rating for Innovent Biologics [12]. Core Insights - The first-generation immune checkpoint inhibitors (IO therapies) are facing patent expirations between 2028 and 2032, creating a significant demand for second-generation IO therapies, which are projected to have a market size of approximately $200 billion [4][7]. - The first-generation PD-1 inhibitors, represented by Keytruda (pembrolizumab) and Opdivo (nivolumab), achieved global sales of $46 billion in 2023, with an expected increase to $52.5 billion in 2024, reflecting a year-on-year growth of 18% [7][20]. - IBI363, developed by Innovent Biologics, demonstrates Best-in-Class potential through its unique PD-1 monoclonal antibody/IL-2 fusion design, showing promising results in treating both hot and cold tumors [9][68]. Summary by Sections Second-Generation IO Therapies - The second-generation IO market is categorized into three segments: replacement of first-generation IO, addressing resistance in first-generation IO, and targeting cold tumors, with a total potential market size estimated at $200 billion [7][49]. - The report highlights the urgency for multinational corporations (MNCs) to secure their positions in the next-generation cornerstone cancer therapies as first-generation patents expire [4][7]. IBI363 Molecular Design - IBI363 employs a unique PD-1 monoclonal antibody and IL-2 fusion design, achieving dual activation of effector T cells by "releasing the brake" and "pressing the accelerator" [8][56]. - The drug features a globally innovative α-biased IL-2 design, which reduces peripheral toxicity while enhancing therapeutic efficacy [57][62]. Clinical Performance of IBI363 - IBI363 has shown significant clinical benefits in various tumor types, including melanoma, colorectal cancer, and non-small cell lung cancer (NSCLC), with promising long-term overall survival (OS) trends [9][68]. - In clinical trials, IBI363 demonstrated a confirmed objective response rate (ORR) of 36.7% and a disease control rate (DCR) of 90% in squamous NSCLC patients, with a median progression-free survival (mPFS) of 9.3 months [69].