Core Insights - The Chinese immune checkpoint inhibitor industry is rapidly developing, with a projected market size of approximately 52.734 billion yuan in 2024, representing a year-on-year growth of 44.14% [1][4][8] - The primary driver of this growth is the innovative therapeutic mechanism of immune checkpoint inhibitors, which reactivate the immune system to identify and attack tumor cells, providing revolutionary treatment options for cancer patients with limited traditional therapies [1][4] Industry Overview - Immune checkpoint inhibitors enhance the immune system's ability to attack cancer cells by blocking immune checkpoint proteins, which are used by tumor cells to evade immune responses [2][5] - The industry has evolved through three stages: initiation, rapid development, and mature expansion, with significant policy support and market entry of domestic products since 2018 [3][4] Market Size - The immune checkpoint inhibitor market in China is expected to reach approximately 52.734 billion yuan in 2024, with a significant increase in clinical application driving market demand [1][8] Key Companies - Leading companies in the industry include Junshi Biosciences, Hengrui Medicine, Innovent Biologics, and BeiGene, which collectively hold over half of the market share [8] - Junshi Biosciences' core product, Toripalimab, has been approved for 12 indications and is the first domestic PD-1 inhibitor to receive FDA approval for kidney cancer treatment [9] - Akeso's dual antibody technology has led to significant advancements, with its PD-1/CTLA-4 dual antibody achieving notable efficacy in cervical cancer [11] Industry Development Trends 1. Continuous technological innovation is driving breakthroughs in precision treatment and combination therapies, with dual antibodies and ADCs becoming more prominent [12] 2. Market expansion and the shift of indications towards early-stage treatments are accelerating internationalization, with several domestic products gaining traction in overseas markets [13] 3. Policy and regulatory developments are promoting industry standardization, with support for new biological agents and reforms in medical insurance payment methods [13]