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BREZTRI AEROSPHERE — FDA Complete Response Letter (NDA 212122)

Issued to AstraZeneca AB. Application reviewed but not approved; deficiencies must be corrected.

Application

NDA 505b1 • 212122

Product

BREZTRI AEROSPHERE

Company

AstraZeneca AB

Review center

Other

Stage

Final Decision

Response due

January 1, 2022

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What did FDA decide for BREZTRI AEROSPHERE?

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 Labeling, packaging, and proprietary name, Clinical efficacy and substantial evidence, Device constituent and human factors, 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

  • 1Labeling, packaging, and proprietary name: 13 source-text matches.
  • 2Clinical efficacy and substantial evidence: 6 source-text matches.
  • 3Device constituent and human factors: 3 source-text matches.
  • 4Safety and adverse events: 2 source-text matches.
Labeling, packaging, and proprietary nameClinical efficacy and substantial evidenceDevice constituent and human factorsSafety and adverse eventsStatistical 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 BREZTRI AEROSPHERE complete response letter

What does this complete response letter mean for BREZTRI AEROSPHERE?

Application reviewed but not approved; deficiencies must be corrected. Requires resubmission addressing deficiencies. FDA issued this letter to AstraZeneca AB on September 30, 2019.

What is NDA 212122?

NDA 212122 is the application under which FDA issued this complete response letter for BREZTRI AEROSPHERE to AstraZeneca AB. It was reviewed by FDA Other. The letter is dated September 30, 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.