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MIPLYFFA — FDA Complete Response Letter (NDA 214927)

Issued to Orphazyme A/S. Application reviewed but not approved; deficiencies must be corrected.

Application

NDA 505b1 • 214927

Product

MIPLYFFA

Company

Orphazyme A/S

Review center

Other

Stage

Final Decision

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What did FDA decide for MIPLYFFA?

Source facts and Assyro context are separated so you can scan the action quickly without treating analysis as an FDA conclusion.

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Source facts

FDA's complete response letter contains source-text evidence related to Clinical efficacy and substantial evidence, Nonclinical evidence, Statistical analysis, Safety and adverse events. Theme counts identify where the letter discusses a topic; they do not replace review of the exact redacted letter.

Key details in this letter

  • 1Clinical efficacy and substantial evidence: 14 source-text matches.
  • 2Nonclinical evidence: 3 source-text matches.
  • 3Statistical analysis: 2 source-text matches.
  • 4Safety and adverse events: 1 source-text match.
Clinical efficacy and substantial evidenceNonclinical evidenceStatistical analysisSafety and adverse events

Suggested next step

Review the exact redacted FDA letter and address each stated deficiency before resubmission.

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Built from structured FDA metadata and deterministic source-text signals. Topic matches are navigation aids, not legal or regulatory conclusions. Verify material decisions against the original FDA document.

FDAPDFUpdated Jul 30, 2026

FDA source document

Read the full FDA complete response letter (PDF)

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Common questions about the MIPLYFFA complete response letter

What does this complete response letter mean for MIPLYFFA?

Application reviewed but not approved; deficiencies must be corrected. Requires resubmission addressing deficiencies. FDA issued this letter to Orphazyme A/S on June 17, 2021.

What is NDA 214927?

NDA 214927 is the application under which FDA issued this complete response letter for MIPLYFFA to Orphazyme A/S. It was reviewed by FDA Other. The letter is dated June 17, 2021.

What happens after an FDA complete response letter?

FDA will not approve the application in its present form. The sponsor can resubmit after addressing every deficiency listed in the letter — which starts a Class 1 (two-month) or Class 2 (six-month) resubmission review clock — withdraw the application, or request an opportunity for a hearing.