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FDA Purple Book · Reference family

clesrovimab-cfor (Enflonsia)

clesrovimab-cfor is an FDA-licensed reference biologic from Merck Sharp & Dohme LLC. Reference exclusivity, biosimilar lineage, and published patents from official FDA Purple Book records.

0

Biosimilars

0

Interchangeables

0

Listed patents

2025

Reference approved

Reference product

351(a)BLA 761432

Enflonsia clesrovimab-cfor

Merck Sharp & Dohme LLC

Approved
Jun 09, 2025
Marketing
Rx
Center
CDER
Patents
None listed

Exclusivity & patent cliffs

Approval, exclusivity, and published-patent expiration dates for clesrovimab-cfor, in chronological order.

  1. Reference approval

    Approval date of the reference clesrovimab-cfor product.

    1 yr ago

Frequently asked questions

Are there biosimilars approved for clesrovimab-cfor (Enflonsia)?

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

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