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ABACAVIR SULFATE AND LAMIVUDINE — FDA Complete Response Letter (NDA 204311)

Issued to Mylan Pharmaceuticals Inc.. Application reviewed but not approved; deficiencies must be corrected.

Application

NDA 505b1 • 204311

Product

ABACAVIR SULFATE AND LAMIVUDINE

Company

Mylan Pharmaceuticals Inc.

Review center

Other

Stage

Final Decision

Response due

December 31, 2024

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What did FDA decide for ABACAVIR SULFATE AND LAMIVUDINE?

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, Safety and adverse events, Clinical efficacy and substantial evidence, 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: 10 source-text matches.
  • 2Safety and adverse events: 2 source-text matches.
  • 3Clinical efficacy and substantial evidence: 1 source-text match.
  • 4Chemistry, manufacturing, and controls: 1 source-text match.
Labeling, packaging, and proprietary nameSafety and adverse eventsClinical efficacy and substantial evidenceChemistry, 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 ABACAVIR SULFATE AND LAMIVUDINE complete response letter

What does this complete response letter mean for ABACAVIR SULFATE AND LAMIVUDINE?

Application reviewed but not approved; deficiencies must be corrected. Requires resubmission addressing deficiencies. FDA issued this letter to Mylan Pharmaceuticals Inc. on October 23, 2014.

What is NDA 204311?

NDA 204311 is the application under which FDA issued this complete response letter for ABACAVIR SULFATE AND LAMIVUDINE to Mylan Pharmaceuticals Inc.. It was reviewed by FDA Other. The letter is dated October 23, 2014.

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.