Differences in Filing for Drug Master File in US, Canada and Europe

In Europe, when filing for a Drug Master File (DMF), the process revolves around stringent regulatory requirements set by the European Medicines Agency (EMA).

  • Regulatory Authority: European Medicines Agency (EMA)
  • Submission Process: The submission process involves preparing an Active Substance Master File (ASMF) containing detailed information about the manufacturing process, control methods, and specifications for active substances.
  • Confidentiality: The content of ASMFs is treated as confidential and is accessible only to authorized regulatory authorities for evaluation purposes.
  • Purpose: The ASMF serves to provide comprehensive information on the quality, safety, and efficacy of the active substance, which is crucial for obtaining marketing authorization for medicinal products within the European Union (EU).


In the United States, filing for a Drug Master File (DMF) is governed by the Food and Drug Administration (FDA), which has its unique set of requirements.

  • Regulatory Authority: Food and Drug Administration (FDA)
  • Submission Process: The submission process involves preparing a United States Drug Master File (USDMF), which contains technical information such as manufacturing methods, specifications, and controls. This file supports the safety, efficacy, and quality of the drug product.
  • Confidentiality: The content of USDMFs is maintained as confidential by the FDA and is reviewed as part of the evaluation process for drug applications.
  • Purpose: The USDMF serves as a crucial resource for API manufacturers, drug product manufacturers, or sponsors submitting regulatory applications, such as New Drug Applications (NDAs) or Abbreviated New Drug Applications (ANDAs).

In Canada, the filing process for a Drug Master File (DMF) is overseen by Health Canada, with its own distinct requirements and procedures.

  • Regulatory Authority: Health Canada
  • Submission Process: The submission process involves preparing a Canadian Drug Master File (DMF) containing detailed information on the manufacturing, processing, packaging, and storing of active pharmaceutical ingredients (APIs) or drug intermediates.
  • Confidentiality: Health Canada maintains confidentiality regarding the information contained in DMFs, which is not disclosed to the public.
  • Purpose: The DMF serves to provide confidential and comprehensive information essential for regulatory submissions for drug products in Canada.

Overall, while the process of filing for Drug Master Files (DMFs) shares some similarities across regions, each regulatory authority has its unique requirements, submission processes, and confidentiality measures tailored to their specific jurisdiction.


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Resource Person: Diwakar Shukla

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