rs2863344

A genome-wide association study of capecitabine sensitivity in 503 HapMap lymphoblastoid cell lines identified novel germline variants associated with capecitabine/5-FU susceptibility. Key findings include rs4702484 (P=5.2×10⁻⁸) in ADCY2 near MTRR, and rs11722476 (P=6.7×10⁻⁵), a missense variant in SMARCAD1 (Ser158Asn). Meta-analysis across six global populations identified four SNPs approaching genome-wide significance (P=1.9×10⁻⁷–8.8×10⁻⁷), with rs8101143 (P=1.9×10⁻⁷), rs576523 (P=2.3×10⁻⁷), and rs361433 also among top hits.