Niraparib Tosylate Patent Expiration

Niraparib Tosylate is used for treating ovarian, fallopian tube, or primary peritoneal cancer associated with HRD positive status and recurrent ovarian or fallopian tube cancer with BRCA mutations. It was first introduced by Glaxosmithkline Llc in its drug Zejula on Mar 27, 2017.


Niraparib Tosylate Patents

Given below is the list of patents protecting Niraparib Tosylate, along with the drug name that holds that patent and the company name owning that drug.

Drug Used in Drug Patent Number Drug Patent Title Drug Patent Expiry Drug Owner
Zejula US11730725 Niraparib formulations Jan 04, 2039 Glaxosmithkline
Zejula US11091459 Niraparib compositions Mar 27, 2038 Glaxosmithkline
Zejula US11673877 Niraparib compositions Mar 27, 2038 Glaxosmithkline
Zejula US8859562 Use of RNAI inhibiting PARP activity for the manufacture of a medicament for the treatment of cancer Aug 04, 2031 Glaxosmithkline
Zejula US8071623 Amide substituted indazoles as poly(ADP-ribose)polymerase(PARP) inhibitors Mar 27, 2031 Glaxosmithkline
Zejula US8436185 Pharmaceutically acceptable salts of 2-{4-[(3S)-piperidin-3-yl]phenyl}-2H-indazole-7-carboxamide Apr 24, 2029 Glaxosmithkline
Zejula US8071579 DNA damage repair inhibitors for the treatment of cancer Aug 12, 2027 Glaxosmithkline
Zejula US8143241 DNA damage repair inhibitors for treatment of cancer Aug 12, 2027 Glaxosmithkline



A patent's expiry date may change depending upon legal activities going on that patent. Critical activities like abandoning of a patent, term extension of a patent or amendment of its claims can increase or decrease the life of a patent hence affecting its expiry date and in turn affecting the generic launch date of that drug. Tracking these ongoing activities on a patent application helps to keep an eye on the latest developments in the patent process of the drug which can give an idea of how early a drug's generic could be available. The next section provides a list of recent legal activities on Niraparib Tosylate's patents.

Given below is the list recent legal activities going on the following patents of Niraparib Tosylate.

Activity Date Patent Number
Patent litigations
Email Notification 13 Feb, 2024 US11730725
Mail Pet Dec Routed to Certificate of Corrections Branch 12 Feb, 2024 US11730725
Mail-Record a Petition Decision of Granted for Patent Term Adjustment after Issue 12 Feb, 2024 US11730725
Pet Dec Routed to Certificate of Corrections Branch 09 Feb, 2024 US11730725
Adjustment of PTA Calculation by PTO 09 Feb, 2024 US11730725
Record a Petition Decision of Granted for Patent Term Adjustment after Issue 09 Feb, 2024 US11730725
Petition Entered 13 Oct, 2023 US11730725
Recordation of Patent eGrant 22 Aug, 2023 US11730725
Patent Issue Date Used in PTA Calculation 22 Aug, 2023 US11730725
Recordation of Patent Grant Mailed 22 Aug, 2023 US11730725


Niraparib Tosylate's Family Patents

Family Patents

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