Table 2.

Participants' Profile

Sites	Number of respondents
Clinical Research Core Hospitals (13 sites)
National Cancer Center Hospital East*	10
Juntendo University Hospital	9
Osaka University Hospital	7
Hokkaido University Hospital	6
Tohoku University Hospital	6
National Cancer Center Hospital*	6
Nagoya University Hospital	6
Okayama University Hospital	6
Kyushu University Hospital	6
Kyoto University Hospital	5
Chiba University Hospital	4
The University of Tokyo Hospital	4
Keio University Hospital	4
National Research Centers for Advanced and Specialized Medical Care (5 sites, excluding 2 duplicate sites*)
National Center of Neurology and Psychiatry	7
National Center for Child Health and Development	7
National Cerebral and Cardiovascular Center	6
National Center for Geriatrics and Gerontology	4
National Center for Global Health and Medicine	2
Respondent’s main role in research
Central support staff (project manager, monitor, pharmacovigilance, etc.)	32
Clinical research coordinator	20
Physician	19
Staff of institutional review board office	16
Biostatistician	13
Other (auditor, 2; secretariat, 2; ethics expert, 1)	5

*Two hospitals are designated as both Clinical Research Core Hospital and National Research Center for Advanced and Specialized Medical Care