Inotersen Sodium Patent Expiration

Inotersen Sodium is Used for treating polyneuropathy in individuals with hereditary transthyretin amyloidosis. It was first introduced by Akcea Therapeutics Inc in its drug Tegsedi on Oct 5, 2018.


Inotersen Sodium Patents

Given below is the list of patents protecting Inotersen Sodium, 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
Tegsedi US7015315 Gapped oligonucleotides Mar 21, 2023

(Expired)

Akcea Theraps
Tegsedi US7101993 Oligonucleotides containing 2′-O-modified purines Sep 05, 2023

(Expired)

Akcea Theraps
Tegsedi US8101743 Modulation of transthyretin expression Apr 01, 2025 Akcea Theraps
Tegsedi US8697860 Diagnosis and treatment of disease Apr 29, 2031 Akcea Theraps
Tegsedi US9061044 Modulation of transthyretin expression Apr 29, 2031 Akcea Theraps
Tegsedi US9399774 Modulation of transthyretin expression Apr 29, 2031 Akcea Theraps


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 Inotersen Sodium's patents.

Given below is the list recent legal activities going on the following patents of Inotersen Sodium.

Event Date Patent/Publication
Patent litigations
Patent Term Extension Application under 35 USC 156 Filed 16 Feb, 2024 US8101743
Payment of Maintenance Fee, 8th Year, Large Entity 10 Jan, 2024 US9399774
FDA Final Eligibility Letter 14 Nov, 2023 US8101743
FDA Final Eligibility Letter 14 Nov, 2023 US9061044
Payment of Maintenance Fee, 12th Year, Large Entity 12 Jul, 2023 US8101743
transaction for FDA Determination of Regulatory Review Period 28 Mar, 2023 US9061044
transaction for FDA Determination of Regulatory Review Period 28 Mar, 2023 US8101743
transaction for FDA Determination of Regulatory Review Period 28 Mar, 2023 US9399774
transaction for FDA Determination of Regulatory Review Period 23 Mar, 2023 US9061044
transaction for FDA Determination of Regulatory Review Period 23 Mar, 2023 US9399774



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