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Targeted therapy in advanced BRAF-mutated colorectal cancer: systematic review and network meta-analysis #MMPMID41355781
Qin BD; Jiao XD; Wang Z; Liu K; Ling Y; Wu Y; Zang YS
BMJ 2025[Nov]; 391 (?): e086026 PMID41355781show ga
OBJECTIVE: To investigate the individual and comparative efficacy and safety of targeted therapy based strategies in advanced BRAF-mutated colorectal cancer. DESIGN: Systematic review and network meta-analysis. DATA SOURCES: PubMed, Embase, Cochrane Library, and ClinicalTrials.gov from inception to 31 May 2025, and international conference proceedings. ELIGIBILITY CRITERIA FOR SELECTING STUDIES: Clinical trials and multicentre, real world studies investigating the efficacy and safety of targeted therapies for advanced BRAF-mutated colorectal cancer with at least one of the clinical outcomes of interest. DATA SYNTHESIS: The primary endpoint was overall survival in the first line and second or later line settings. Secondary endpoints included progression-free survival, objective response rate, disease control rate, and grade >/=3 adverse events. Single arm meta-analysis, pairwise meta-analysis, and network meta-analysis were performed to pool hazard ratios with 95% credible intervals (CrIs) for overall survival and progression-free survival, and odds ratios with 95% CrIs for objective response rate, disease control rate, and adverse events. The rankogram and surface under the cumulative ranking curve (SUCRA) evaluated the relative superiority of regimens in the network meta-analysis. RESULTS: 60 studies involving 4633 patients with advanced BRAF-mutated colorectal cancer were included. Pooled estimates indicated that patients could benefit from an anti-EGFR (epidermal growth factor receptor)/BRAF based regimen. Doublet chemotherapy (DCT)-anti-EGFR/BRAF was associated with the best overall survival, providing significant benefits compared with DCT-anti-VEGF (vascular endothelial growth factor) (hazard ratio 0.49, 95% CrI 0.36 to 0.66), triplet chemotherapy-anti-VEGF (0.51, 0.33 to 0.80), and anti-EGFR/BRAF (0.70, 0.51 to 0.96) regimens in the first line setting. Chemotherapy-anti-EGFR/BRAF showed significant superiority in overall survival (SUCRA=0.94 for DCT-anti-EGFR/BRAF, 0.90 for single agent chemotherapy (SCT)-anti-EGFR/BRAF) and progression-free survival (0.93 for DCT-anti-EGFR/BRAF and 0.92 for SCT-anti-EGFR/BRAF) among all first line targeted therapy strategies. In the second or later line setting, anti-EGFR/BRAF with or without an additional inhibitor (anti-MEK (mitogen-activated protein kinase kinase) or anti-PI3K (phosphoinositide 3-kinase)), exhibited better efficacy compared with other alternative strategies, ranking highest across study endpoints based on rank probability and SUCRA. CONCLUSIONS: For initial treatment of advanced BRAF-mutated colorectal cancer, combining doublet chemotherapy with anti-EGFR/BRAF therapy offers the best survival benefit. For patients who have had previous treatment, anti-EGFR/BRAF regimens (with or without a MEK inhibitor) are the most effective and tolerable options. SYSTEMATIC REVIEW REGISTRATION: PROSPERO CRD420250653959.
BMJ 2025 ; 391 (?): e086026
