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Purple Book product · Reference 351(a)

Vyvgart

efgartigimod alfa-fcab

351(a)BLA 761195RxLicensed Argenx BV

Dec 17, 2021

Approved

Reference 351(a)

License type

Rx

Marketing

None

Listed patents

Vyvgart (efgartigimod alfa-fcab) is Argenx BV's FDA-licensed reference biologic, approved under a 351(a) BLA in 2021. No biosimilars referencing Vyvgart 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.

    Dec 17, 2021

    4 yr 8 mo ago

  2. Today

  3. Orphan exclusivity ends

    7-year orphan-drug exclusivity window.

    Dec 17, 2028

    in 2 yr 5 mo

Pharmaceutical detail

Strength

400MG/20ML (20MG/ML)

Dosage form

Injection

Route

Intravenous

Presentation

Single-Dose Vial

Center

CDER

License number

2217

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.

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 Vyvgart have approved biosimilars?

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

What is Vyvgart's BLA number?

Vyvgart is licensed under BLA 761195, held by Argenx BV.

When was Vyvgart approved by the FDA?

Vyvgart was approved by the FDA on Dec 17, 2021.

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