2017 Volume 7 Issue 3 Pages 215-224
MID-NET® is the closed network system of Electronic Medical Records (EMRs) databases which consists of 10 medical institutions including 23 hospitals in Japan. The aim of the MID-NET® is to promote effective safety measures for drugs through pharmacoepidemiological studies utilizing real world data. The MID-NET® is a distributed database with the common data model which are placed in each hospital. In 2018, the database is expected to include approximately 4 million patients’ information, such as diagnosis, medical procedures, prescription drugs and laboratory test results since 2009. Every piece of information is mapped to common codes among all hospitals. The high data quality of MID-NET® was confirmed by checking consistency between original data and MID-NET® database. Users can access and analyze MID-NET® databases through an on-site center. PMDA has conducted several pilot studies for benefit-risk assessments. We are on final stages for implementation in FY2018 and working on creating utilization rule and discussion of user fee with industries and academia.