Regulatory Revolution in Japan: The New Pathway for “Specific Use Drugs” in 2026

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In 2026, Japan is implementing a structural change in its drug designation process. The new workflow allows companies to apply for the “Drug for Specific Use” classification directly to the PMDA (Pharmaceuticals and Medical Devices Agency), eliminating previous ministerial bureaucratic hurdles and accelerating the arrival of treatments for rare and critical diseases in the Japanese market.

REGISTRATION OF DRUG MASTER FILE (DMF) IN JAPAN

In Japan, the Drug Master File (DMF) is called “Master File” or “MF”. The Purpose of DMF is to protect the “know-how” of API manufacturing methods against the marketing authorization applicant (MAA) / holder (MAH) of pharmaceutical products.  The foreign manufacturers of APIs can apply for DMF registration.

Japan’s PMDA Remote Inspections

The PMDA clarifies its requirements for conducting remote compliance inspections related to drugs and regenerative medical products.