Changes in the Number and Employment Conditions of Clinical Research Coordinators in South Korea.

The number of CRCs was increased, and such an increase of CRCs was attributed to the increase of investigator-affiliated CRCs rather than site-affiliated CRCs. Though the employment conditions of CRCs have been improved, most improvements were confined to site-affiliated CRCs. It is recommended that each site have a CRC registration and management system for both site-affiliated CRCs and investigator-affiliated CRCs, standardized CRC employment guidelines, and support for CRCs to participate in the training program for the overall improvement of employment conditions of CRCs in Korea.