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WAKIX — FDA Complete Response Letter (NDA 211150)

Issued to Bioprojet Pharma. Application reviewed but not approved; deficiencies must be corrected.

Application

NDA 505b1 • 211150

Product

WAKIX

Company

Bioprojet Pharma

Review center

Other

Stage

Final Decision

Assyro regulatory brief

Free

What did FDA decide for WAKIX?

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

Verify in source

Source facts

FDA's complete response letter contains source-text evidence related to Clinical efficacy and substantial evidence, Labeling, packaging, and proprietary name, Statistical analysis. 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: 5 source-text matches.
  • 2Labeling, packaging, and proprietary name: 5 source-text matches.
  • 3Statistical analysis: 1 source-text match.
Clinical efficacy and substantial evidenceLabeling, packaging, and proprietary nameStatistical analysis

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 WAKIX complete response letter

What does this complete response letter mean for WAKIX?

Application reviewed but not approved; deficiencies must be corrected. Requires resubmission addressing deficiencies. FDA issued this letter to Bioprojet Pharma on August 14, 2019.

What is NDA 211150?

NDA 211150 is the application under which FDA issued this complete response letter for WAKIX to Bioprojet Pharma. It was reviewed by FDA Other. The letter is dated August 14, 2019.

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.