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Re-Examination System (재심사)

Re-examination (재심사) is a Korean post-market requirement mandating periodic formal MFDS review of newly approved Grade III and IV devices after a defined period on the market to reassess benefit-risk balance based on accumulated post-market evidence.

Who is subject?

Grade III and IV devices that received a first-ever 품목허가 in Korea (새로운 허가).

Re-examination period

Typically 3 to 5 years from first approval. The manufacturer/importer must submit a re-examination application within a specified window before expiry (typically 6 months before).

What re-examination involves

  • All post-market data accumulated during the period
  • Analysis of adverse events, PMS data, international safety developments
  • Updated clinical evaluation
  • MFDS review of the re-examination dossier

Possible outcomes

  • Confirm original authorisation
  • Add new conditions (e.g., labelling warnings)
  • Restrict the indication
  • In rare cases, revoke the 품목허가

Re-examination vs re-evaluation

FeatureRe-examination (재심사)Re-evaluation (재평가)
TimingFixed — end of re-examination periodVariable — triggered by safety signal
ApplicabilityNew approvals onlyAny device on market
InitiationManufacturer applies proactivelyMFDS initiates

"Failure to submit: If the re-examination dossier is not submitted by the deadline, MFDS may suspend or revoke the 품목허가 without further notice."