Biologic facts

Brand

Dupixent (Dupilumab)

No biosimilar to Dupixent is licensed. The 12-year reference exclusivity date of 03/2029 is an estimate from first approval; the Purple Book does not list patents, which can protect a biologic longer.

Dupixent was first approved by the FDA in 2017; the application holder is Regeneron Pharmaceuticals, Inc.

The latest NADAC for DUPIXENT 300 MG/2 ML SYRINGE is $1,010.74 per mL (as of 10/28/2026).

Holder Regeneron Pharmaceuticals, Inc.Approved 2017

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
03/202912-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 Dupixent profile.See what is included

03Supply and price

FDA drug shortage
ClearNot on the current shortage list
FDA shortages
NADAC
$1,010.74 per mLDUPIXENT 300 MG/2 ML SYRINGE, mid-priced of 3 strengths, as of 10/28/2026
CMS NADAC

04Product

Application holder
Regeneron Pharmaceuticals, Inc.
Purple Book
First approved
2017
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.