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AVZIVI — FDA Complete Response Letter (BLA 761198)

Issued to Bio-Thera Solutions Ltd.. Application reviewed but not approved; deficiencies must be corrected.

Application

BLA • 761198

Product

AVZIVI

Company

Bio-Thera Solutions Ltd.

Review center

Other

Stage

Final Decision

Response due

December 31, 2024

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What did FDA decide for AVZIVI?

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 Labeling, packaging, and proprietary name, Safety and adverse events, Chemistry, manufacturing, and controls. 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: 14 source-text matches.
  • 2Safety and adverse events: 1 source-text match.
  • 3Chemistry, manufacturing, and controls: 1 source-text match.
Labeling, packaging, and proprietary nameSafety and adverse eventsChemistry, manufacturing, and controls

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 AVZIVI complete response letter

What does this complete response letter mean for AVZIVI?

Application reviewed but not approved; deficiencies must be corrected. Requires resubmission addressing deficiencies. FDA issued this letter to Bio-Thera Solutions Ltd. on November 19, 2021.

What is BLA 761198?

BLA 761198 is the application under which FDA issued this complete response letter for AVZIVI to Bio-Thera Solutions Ltd.. It was reviewed by FDA Other. The letter is dated November 19, 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.