Core Viewpoint - Rongchang Biopharma announced a significant business development (BD) deal with AbbVie for the RC148 drug, with a total transaction value of up to $5.6 billion, marking a new high for the company in terms of upfront payments and potential total deal value [1][3][8] Group 1: Business Development Deal - The agreement with AbbVie includes an upfront payment of $650 million and potential milestone payments of up to $4.95 billion, along with tiered royalties on net sales outside Greater China [2][5][9] - This deal represents a shift in Rongchang Biopharma's BD strategy, moving from early reliance on multinational pharmaceutical companies to a more flexible collaboration model [1][4][6] Group 2: RC148 Drug Development - RC148 is a novel bispecific antibody targeting PD-1/VEGF, currently undergoing clinical trials for various advanced malignancies [4][9] - The drug has received FDA IND approval for a Phase II clinical trial in the U.S., indicating its entry into global clinical development [4][9] - Preliminary clinical data presented at the ESMO-IO conference showed promising efficacy for RC148 in treating non-small cell lung cancer [4][9] Group 3: Financial Performance - For the first three quarters of 2025, Rongchang Biopharma reported revenues of 1.72 billion yuan, a year-on-year increase of 42.27%, while net losses decreased significantly to 551 million yuan from 1.071 billion yuan in the same period last year [5][10]