Alternating Oxaliplatin and Irinotecan Chemotherapy Combined With Capecitabine and Bevacizumab for Microsatellite-stable Stage IV Metastatic Colon Cancer With a BRAF V600E Mutation: Two Case Reports Indicating Survival Improvement over Standard Therapy

Colorectal cancer (CRC) has the third-highest incidence among human cancers. Advancements in chemotherapy and targeted therapy have improved the treatment outcomes for patients with CRC. However, the management of patients with unresectable metastatic CRC (mCRC) continues to be a significant challenge for clinicians worldwide, particularly for those with microsatellite stability (MSS) and the BRAF V600E mutation, as they are associated with the poorest prognosis.