Last Updated: November 8, 2026

Details for Patent: RE50996

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Which drugs does patent RE50996 protect, and when does it expire?

Patent RE50996 protects QFITLIA and is included in one NDA.

This patent has sixty-one patent family members in twenty-five countries.

Summary for Patent: RE50996
Title:Serpinc1 iRNA compositions and methods of use thereof
Abstract:The invention relates to iRNA, e.g., double-stranded ribonucleic acid (dsRNA), compositions targeting the Serpinc1 gene, and methods of using such iRNA, e.g., dsRNA, compositions to inhibit expression of Serpinc1 and methods of treating subjects having a bleeding disorder, such as a hemophilia.
Inventor(s):Akin Akinc, Alfica Sehgal, Ivanka Toudjarska, Donald Foster, Stuart Milstein, Brian Bettencourt, Martin A. Maier, Klaus Charisse, Satyanarayana KUCHIMANCHI, Kallanthottathil G. Rajeev, Muthiah Manoharan
Assignee: Genzyme Corp
Application Number:US17/396,331
Patent Claim Types:
see list of patent claims
Use; Composition;

Drugs Protected by US Patent RE50996

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Genzyme Corp QFITLIA fitusiran sodium SOLUTION;SUBCUTANEOUS 219019-001 Mar 28, 2025 RX Yes Yes ⤷  Start Trial ⤷  Start Trial Y Y ROUTINE PROPHYLAXIS TO PREVENT OR REDUCE THE FREQUENCY OF BLEEDING EPISODES IN ADULT AND PEDIATRIC PATIENTS AGED 12 YEARS AND OLDER WITH HEMOPHILIA A OR B WITH OR WITHOUT FACTOR VIII OR IX INHIBITORS ⤷  Start Trial
Genzyme Corp QFITLIA fitusiran sodium SOLUTION;SUBCUTANEOUS 219019-002 Mar 28, 2025 RX Yes Yes ⤷  Start Trial ⤷  Start Trial Y Y ROUTINE PROPHYLAXIS TO PREVENT OR REDUCE THE FREQUENCY OF BLEEDING EPISODES IN ADULT AND PEDIATRIC PATIENTS AGED 12 YEARS AND OLDER WITH HEMOPHILIA A OR B WITH OR WITHOUT FACTOR VIII OR IX INHIBITORS ⤷  Start Trial
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >TE >Type >RLD >RS >Patent No. >Patent Expiration >Product >Substance >Delist Req. >Patented / Exclusive Use >Submissiondate

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