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Purple Book product · Reference 351(a)

Xenpozyme

olipudase alfa-rpcp

351(a)BLA 761261RxLicensed Genzyme Corporation

Mar 31, 2023

Approved

Reference 351(a)

License type

Rx

Marketing

None

Listed patents

Xenpozyme (olipudase alfa-rpcp) is Genzyme Corporation's FDA-licensed reference biologic, approved under a 351(a) BLA in 2023. No biosimilars referencing Xenpozyme 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.

    Mar 31, 2023

    3 yr 4 mo ago

  2. Today

  3. Orphan exclusivity ends

    7-year orphan-drug exclusivity window.

    Aug 31, 2029

    in 3 yr 2 mo

Pharmaceutical detail

Strength

4MG

Dosage form

For Injection

Route

Intravenous

Presentation

Single-Dose Vial

Center

CDER

License number

1596

Product number

002

Submission type

Supplement

Supplement number

1

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

  • v4Jul 02, 2026
  • v3Jul 02, 2026
  • v2Jul 02, 2026

Frequently asked questions

Does Xenpozyme have approved biosimilars?

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

What is Xenpozyme's BLA number?

Xenpozyme is licensed under BLA 761261, held by Genzyme Corporation.

When was Xenpozyme approved by the FDA?

Xenpozyme was approved by the FDA on Mar 31, 2023.

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