His research focuses on gastrointestinal cancers, molecular residual disease (MRD), circulating tumor DNA (ctDNA), cancer genomics, and biomarker-driven clinical trials. Dr. Bando has played a leading role in several nationwide precision oncology initiatives, including SCRUM-Japan, and CIRCULATE-Japan, contributing to the development and clinical implementation of liquid biopsy technologies and multi-omics research. He has authored numerous high-impact publications in journals including Nature Medicine, Cancer Discovery, Nature Reviews Gastroenterology & Hepatology, Clinical Cancer Research, and Med.