Assyro AI

Purple Book product · Reference 351(a)

Fabrazyme

agalsidase beta

351(a)BLA 103979RxLicensed Genzyme Corporation

Apr 24, 2003

Approved

Reference 351(a)

License type

Rx

Marketing

None

Listed patents

Fabrazyme (agalsidase beta) is Genzyme Corporation's FDA-licensed reference biologic, approved under a 351(a) BLA in 2003. No biosimilars referencing Fabrazyme are listed in the Purple Book yet.

Sourced from the FDA Purple Book · verified Jul 02, 2026

Key dates

  1. Approval

    Approval date of this BLA submission.

    Apr 24, 2003

    23 yr 7 mo ago

  2. Today

  3. Orphan exclusivity ends

    7-year orphan-drug exclusivity window.

    Mar 11, 2028

    in 1 yr 8 mo

Pharmaceutical detail

Strength

35MG

Dosage form

For Injection

Route

Intravenous

Presentation

Single-Dose Vial

Center

CDER

License number

1596

Product number

001

Submission type

Original

Supplement number

Not listed

Change type

Not listed

Reference product family

View full family

This is the reference (originator) product. No biosimilars or interchangeables reference it in the Purple Book yet.

1 additional BLA record for this product (other strengths or presentations) are in the same reference family.

Patent list

No patent-list records were published for this product. The Purple Book patent list reflects the statutory patent exchange under the BPCIA and is not exhaustive.

Source provenance

Source kind · Advanced Search
Checked Jul 02, 2026
  • advanced-searchAdvanced Search · Jul 02, 2026
  • monthly-downloadMonthly download · Jul 02, 2026

Change history

  • v3Jul 02, 2026
  • v2Jul 02, 2026

Frequently asked questions

Does Fabrazyme have approved biosimilars?

No 351(k) biosimilars or interchangeable biosimilars referencing Fabrazyme are listed in the FDA Purple Book yet.

What is Fabrazyme's BLA number?

Fabrazyme is licensed under BLA 103979, held by Genzyme Corporation.

When was Fabrazyme approved by the FDA?

Fabrazyme was approved by the FDA on Apr 24, 2003.

Related FDA reference tools

Agent CTA Background

Your Next Submission Could Take 6+ Fewer Weeks and Cost $250K Less.