Last Updated: November 13, 2026

Details for Patent: 12,552,836

Name: Drug Patent Intelligence for US Patent 12552836
Creator: DrugPatentWatch
License: https://www.drugpatentwatch.com/terms.php

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Which drugs does patent 12,552,836 protect, and when does it expire?

Patent 12,552,836 protects ICOTYDE and is included in one NDA.

This patent has twenty-two patent family members in twelve countries.

Summary for Patent: 12,552,836

Title:	Peptide inhibitors of interleukin-23 receptor and their use to treat inflammatory diseases
Abstract:	The present invention provides novel peptide inhibitors of the interleukin-23 receptor, and related compositions and methods of using these peptide inhibitors to treat or prevent a variety of diseases and disorders, including inflammatory bowel diseases.
Inventor(s):	Ashok Bhandari, Brian Troy Frederick, David Clifford Sullivan
Assignee:	Protagonist Therapeutics Inc
Application Number:	US17/549,579
Patent Claim Types: see list of patent claims	Composition; Compound;

Drugs Protected by US Patent 12,552,836

Glossary

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Applicant	Tradename	Generic Name	Dosage	NDA	Approval Date	TE	Type	RLD	RS	Patent No.	Patent Expiration	Product	Substance	Delist Req.	Patented / Exclusive Use	Submissiondate
Janssen Biotech	ICOTYDE	icotrokinra hydrochloride	TABLET;ORAL	220149-001	Mar 17, 2026		RX	Yes	Yes	⤷ Start Trial	⤷ Start Trial	Y	Y			⤷ 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

International Family Members for US Patent 12,552,836

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Country	Patent Number	Estimated Expiration	Supplementary Protection Certificate	SPC Country	SPC Expiration
Argentina	114538	⤷ Start Trial
Argentina	119389	⤷ Start Trial
Australia	2020311395	⤷ Start Trial
Brazil	112022000328	⤷ Start Trial
>Country	>Patent Number	>Estimated Expiration	>Supplementary Protection Certificate	>SPC Country	>SPC Expiration

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