Zhi Tong Cai Jing·2026-01-26 01:03Group 1 - Merck (MRK.US) has halted acquisition talks with Revolution Medicines (RVMD.US) due to disagreements over the purchase price, which was estimated to value Revolution Medicines at around $30 billion [1] - Merck is seeking to strengthen its treatment portfolio to address an anticipated $18 billion loss in sales over the next five years due to patent expirations, particularly with its key cancer drug Keytruda losing patent protection by the end of this decade [1] - The potential acquisition could have provided Merck with Revolution Medicines' experimental drug Daraxonrasib, which is a key asset for the company [1][2] Group 2 - Daraxonrasib (RMC-6236) is an oral targeted drug that acts as a multi-selective inhibitor of RAS, aimed at treating cancers driven by RAS gene mutations [2] - The drug targets common oncogenic RAS mutations, including G12X, G13X, and Q61X, which are significant drivers of major cancers such as pancreatic ductal adenocarcinoma (PDAC), non-small cell lung cancer (NSCLC), and colorectal cancer (CRC) [2] - Daraxonrasib is currently being evaluated in four global Phase 3 clinical trials, including three studies focused on PDAC and one on locally advanced or metastatic RAS-mutant NSCLC, with key results expected to be announced this summer [2][3] Group 3 - The RASolute304 clinical trial, which is a global, open-label Phase 3 study, aims to assess the safety and efficacy of Daraxonrasib in resectable PDAC patients who have undergone surgery and chemotherapy [3] - The trial plans to enroll approximately 500 patients with oncogenic RAS mutations who have completed tumor resection and perioperative chemotherapy [3] - Industry research indicates that the pancreatic cancer treatment market could expand tenfold to over $3 billion by 2035, driven by Daraxonrasib, which is expected to receive FDA approval by 2026 [3]