Biologic facts

Brand

Benlysta (Belimumab)

No biosimilar to Benlysta is licensed. The 12-year reference exclusivity date of 03/2023 is an estimate from first approval; the Purple Book does not list patents, which can protect a biologic longer.

Benlysta was first approved by the FDA in 2011; the application holder is Glaxosmithkline LLC.

The most recent FDA recall on record is a Class II recall dated 04/21/2025.

Holder Glaxosmithkline LLCApproved 2011

01Exclusivity

When biosimilar competition can legally begin. The Purple Book lists reference exclusivity but not patents, which can protect a biologic longer.

Patents
Not listed in the Purple Book
Purple Book
Reference exclusivity
03/202312-year estimate from first approval
Purple Book

02Competition

Biosimilars
No biosimilar approved
Purple Book
Every makerEach licensed product and biosimilar maker.
PrescribersWho prescribes it, from Medicare data.
Spend and safetyMedicare Part B spend and safety reports.
Available in the full Benlysta profile.See what is included

03Supply and price

FDA drug shortage
ClearNot on the current shortage list
FDA shortages
Latest recall
04/21/2025Class II, Belimumab, Mckesson Medical-Surgical Inc. Corporate Office
FDA enforcement

04Product

Application holder
Glaxosmithkline LLC
Purple Book
First approved
2011
Purple Book

Sources: FDA Orange Book, FDA Purple Book, FDA drug shortages, FDA enforcement reports and CMS NADAC, read through QOPE. Not medical or legal advice.