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Oct. 06, 2026
A Guide to Pharmacoepidemiology in Japan: Using Data to Understand Real-World Medication Use, Safety, and Outcomes
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Sep. 29, 2026
Real-World Evidence in Japan: How Data-Driven Insights Are Reshaping Drug Development and Regulatory Strategy
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Sep. 04, 2026
A Practical Guide to Real-World Data in Japan for Research and Development Teams
65.37
Million
Patients
Hospital Database
(Last updated: October 2026)
[Data availability: April 2008 to end of August 2026]
The start date of available data varies by hospital.
Hospital data is a compilation of receipt and DPC data allocated to a single patient ID registered in the medical institution, allowing longitudinal tracking of treatments and disease progression within that hospital.
21.02
Million
Patients
Health Insurance
Database
(Last updated: December 2023)
[Data availability: April 2012 to end of September 2023]
892
Publications
Peer-Reviewed
Publications
A list of peer-reviewed research articles published using our databases.
Database Insights &
Rankings
We analyze Japan’s largest hospital database to deliver regularly updated rankings and key trends each month.
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News
Latest News- NEWSNovember 2, 2026Hospital Data [Actual number of patients: 65.37 million]
- UPDATENovember 2, 202612 publications have been added
- UPDATEOctober 26, 2026Notice Regarding Resumption of Suspended Functions
- UPDATEOctober 22, 2026Notice Regarding Temporary Suspension of Certain Functions
- UPDATEOctober 15, 2026This Month’s Data Report Archive – <Trends in the Number of Patients with Psoriasis and Prescribing Patterns by Drug Class : Focus on the Growth of TYK2 Inhibitors and JAK1 Inhibitors as Oral Treatment Options Following Biologics>
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