Abiraterone Acetate is Used for the treatment of advanced prostate cancer in combination with prednisone, including metastatic castration-resistant and high-risk castration-sensitive types. It was first introduced by Janssen Biotech Inc in its drug Zytiga on Apr 28, 2011. Another drug containing Abiraterone Acetate is Yonsa. 15 different companies have introduced drugs containing Abiraterone Acetate.

Abiraterone Acetate Patents

Given below is the list of patents protecting Abiraterone Acetate, 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
Yonsa	US10292990	Abiraterone steroid formulation	May 20, 2034	Sun Pharm
Yonsa	US9889144	Abiraterone acetate formulation and methods of use	Mar 17, 2034	Sun Pharm
Zytiga	US5604213	17-substituted steroids useful in cancer treatment	Feb 18, 2014 (Expired)	Janssen Biotech
Zytiga	US8822438	Methods and compositions for treating cancer	Aug 24, 2027	Janssen Biotech

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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 Abiraterone Acetate's patents.

Latest Legal Activities on Abiraterone Acetate's Patents

Given below is the list recent legal activities going on the following patents of Abiraterone Acetate.

Event	Date	Patent/Publication
Legal Activities This Week
Payment of Maintenance Fee, 4th Year, Large Entity	21 Nov, 2022	US10292990
Payment of Maintenance Fee, 8th Year, Large Entity	16 Feb, 2022	US8822438
Payment of Maintenance Fee, 4th Year, Large Entity	13 Aug, 2021	US9889144
Review Certificate Mailed	21 Oct, 2019	US8822438
Review Certificate	11 Sep, 2019	US8822438
Recordation of Patent Grant Mailed	21 May, 2019	US10292990
Patent Issue Date Used in PTA Calculation	21 May, 2019	US10292990
Email Notification	02 May, 2019	US10292990
Issue Notification Mailed	01 May, 2019	US10292990
Dispatch to FDC	02 Apr, 2019	US10292990

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