Mitsuru Sasako

Mitsuru Sasako (Tokyo and Hyogo) led the JCOG 9501 trial showing that extended para-aortic nodal dissection adds nothing to D2 gastrectomy, and co-led the ACTS-GC trial that established adjuvant S-1 after D2 surgery in Japan. His surgical standards and training work underpin the D2 approach now recommended in Western guidelines. He remains an advisor to international gastric cancer surgical trials.