Committee

Standing Committee

Standing Committee	Chair	Role
Executive Committee	Tomohide Tamura MD	Determine JCOG policies Approve/disapprove protocol concepts
Protocol Review Committee	Kensei Tobinai MD, PhD	Review protocol concepts Review and approve study protocols
Data and Safety Monitoring Committee	Nagahiro Saijo MD, PhD	Monitor study progress Review adverse event reports Approve/disapprove protocol amendment/revision Approve/disapprove study continuation (interim analysis)
Audit Committee	Masanori Shimoyama MD, PhD	Conduct site visit audit
Education and Training Committee	Seiichiro Yamamoto PhD	Plan and conduct educational programs
Conflict of Interest Committee	Nobutoshi Ando MD	Manage conflict of interest

Discipline Committee

Discipline Committee	Chair	Role
Radiotherapy Committee	Kazushige Hayakawa MD, PhD	Quality control and quality assurance of radiotherapy
Pathology Committee	Yoshihiro Matsuno MD	Quality control and quality assurance of pathological diagnosis
Translational Research Committee	Yasuhiro Matsumura MD, PhD	Develop and streamline the system of translational research Review translational research concept/protocol
Diagnostic Radiology Committee	Hirokazu Watanabe MD, PhD	Support central reviews of imaging
Regulatory Affairs Committee	Yasuhiro Fujiwara MD, PhD	Collect and distribute regulatory information
Clinical Research Professionals Committee	Harumi Kaba RN, CCRP	Facilitate the collaboration between central and local CRPs Improve JCOG study quality in the viewpoint of CRPs

Ad hoc Committee

Ad hoc Committee	Chair	Role
Interim Analysis Committee	Takuhiro Yamaguchi PhD	Develop "JCOG interim analysis policy"
Surgical Complication Committee	Mitsuru Sasako MD, PhD	Develop "Modified Clavien-Dindo Classification (JCOG version)"