Application Pathways Updated January 14, 2026

What is a BLA?

BLA (Biologics License Application) is the FDA submission for biologic drug approval. Learn about BLA requirements, process, and how it differs from NDA.

Definition

BLA (Biologics License Application) is the regulatory submission required for FDA approval to manufacture and market biologic products in the United States. Biologics are complex molecules derived from living organisms, including vaccines, therapeutic proteins, monoclonal antibodies, and cell therapies.

How BLA Works

BLAs are regulated under Section 351 of the Public Health Service Act. The application must demonstrate the biologic is safe, pure, and potent. Manufacturing facility approval is integral to the BLA.

Key Requirements

  • Complete characterization of the biologic product
  • Clinical safety and efficacy data
  • Chemistry, manufacturing, and controls for biologics
  • Facility inspection and compliance documentation
  • Proposed labeling including biosimilar considerations
  • Environmental impact assessment

BLA vs NDA

AspectBLANDA
Product TypeBiologics (proteins, mAbs, vaccines)Small molecules
Regulatory ActPHS Act Section 351FD&C Act Section 505
ManufacturingIntegral to licenseSeparate from approval
Exclusivity12 years (reference product)5 years (NCE)
Review CenterCBER or CDERCDER

Recent BLA Approvals

DrugCompanyApproval DateType
Lecanemab (Leqembi)Eisai/BiogenJul 2023Monoclonal antibody
Etrasimod (Velsipity)PfizerOct 2023S1P receptor modulator
Talquetamab (Talvey)J&JAug 2023Bispecific antibody

Why BD Teams Track BLA

For business development professionals, BLA submissions represent high-value assets:

  • Deal Implication: Biologics command premium valuations; BLA-stage assets often attract major deals
  • Due Diligence Focus: Manufacturing capability and CMC complexity are critical evaluation factors
  • Opportunity Signal: 12-year exclusivity for reference biologics provides extended commercial runway

Frequently Asked Questions

What is a BLA?

A BLA (Biologics License Application) is the FDA submission requesting approval to market a biologic product, including vaccines, blood products, and therapeutic proteins.

How long does BLA review take?

Standard BLA review takes 10 months; Priority Review takes 6 months. Complex biologics may require longer review due to manufacturing complexity.

What is the difference between BLA and NDA?

BLAs are for biologic products derived from living sources; NDAs are for chemically synthesized small molecule drugs. BLAs are regulated under the PHS Act.

What does a BLA contain?

BLAs include clinical data, CMC information specific to biologics manufacturing, characterization studies, and proposed labeling for the biologic product.

Who reviews BLA applications?

CBER reviews vaccines, blood products, and cellular therapies. CDER reviews therapeutic proteins and monoclonal antibodies under an intercenter agreement.

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