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AVACLYR — FDA Complete Response Letter (NDA 202408)

Issued to Fera Pharmaceuticals, LLC. Application reviewed but not approved; deficiencies must be corrected.

Application

NDA 505b1 • 202408

Product

AVACLYR

Company

Fera Pharmaceuticals, LLC

Review center

Other

Stage

Final Decision

Response due

January 1, 2020

Assyro regulatory brief

Free

What did FDA decide for AVACLYR?

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 issued a complete response letter. No controlled deficiency theme met the deterministic text-matching threshold; review the exact redacted letter.

Key details in this letter

No structured topic signal was identified. Review the source document directly.

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 AVACLYR complete response letter

What does this complete response letter mean for AVACLYR?

Application reviewed but not approved; deficiencies must be corrected. Requires resubmission addressing deficiencies. FDA issued this letter to Fera Pharmaceuticals, LLC on March 28, 2019.

What is NDA 202408?

NDA 202408 is the application under which FDA issued this complete response letter for AVACLYR to Fera Pharmaceuticals, LLC. It was reviewed by FDA Other. The letter is dated March 28, 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.