Quizartinib Dihydrochloride Patent Expiration

Quizartinib Dihydrochloride is Used for treatment of newly diagnosed FLT3-ITD positive acute myeloid leukemia in adult patients. It was first introduced by Daiichi Sankyo Inc in its drug Vanflyta on Jul 20, 2023.


Quizartinib Dihydrochloride Patents

Given below is the list of patents protecting Quizartinib Dihydrochloride, 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
Vanflyta US7820657 Imidazolothiazole compounds for the treatment of disease Sep 26, 2028 Daiichi Sankyo Inc
Vanflyta US7968543 Methods of administering N-(5-tert-butyl-isoxazol-3-yl)-N′-{4-[7-(2-morpholin-4-yl-ethoxy)imidazo[2,1-b][1,3]benzothiazol-2-yl]phenyl}urea to treat proliferative disease Aug 15, 2029 Daiichi Sankyo Inc
Vanflyta US8129374 Method of using imidazolothiazole compounds for the treatment of disease Mar 16, 2027 Daiichi Sankyo Inc
Vanflyta US8357690 Methods of treatment using combination therapy Feb 26, 2031 Daiichi Sankyo Inc
Vanflyta US8557810 Imidazolothiazole compounds for the treatment of disease Mar 16, 2027 Daiichi Sankyo Inc
Vanflyta US8836218 Methods of treatment using combination therapy Mar 23, 2030 Daiichi Sankyo Inc
Vanflyta US8865710 Methods of treating proliferative diseases Aug 15, 2029 Daiichi Sankyo Inc
Vanflyta US8883783 Solid forms comprising N-(5-tert-butyl-isoxazol-3-yl)-N′-{4-[7-(2-morpholin-4-yl-ethoxy)imidazo[2,1-b][1,3]benzothiazol-2-yl]phenyl}urea, compositions thereof, and uses therewith Mar 16, 2027 Daiichi Sankyo Inc
Vanflyta US9555040 Methods of treating proliferative diseases May 14, 2030 Daiichi Sankyo Inc
Vanflyta US9585892 Solid forms comprising N-(5-tert-butyl-isoxazol-3-yl)-N′-{4-[7-(2-morpholin-4-yl-ethoxy)imidazo[2,1-b][1,3]benzothiazol-2-yl]phenyl}urea, compositions thereof, and uses therewith Mar 16, 2027 Daiichi Sankyo Inc
Vanflyta US9675549 Tablet containing composite with cyclodextrin Sep 30, 2033 Daiichi Sankyo Inc


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 Quizartinib Dihydrochloride's patents.

Given below is the list recent legal activities going on the following patents of Quizartinib Dihydrochloride.

Event Date Patent/Publication
Patent litigations
Payment of Maintenance Fee, 8th Year, Large Entity 17 Jul, 2024 US9555040
Payment of Maintenance Fee, 12th Year, Large Entity 10 Jul, 2024 US8357690
Second letter to regulating agency to determine regulatory review period 02 Feb, 2024 US8557810
Second letter to regulating agency to determine regulatory review period 02 Feb, 2024 US8836218
Second letter to regulating agency to determine regulatory review period 02 Feb, 2024 US8357690
Second letter to regulating agency to determine regulatory review period 02 Feb, 2024 US7820657
Second letter to regulating agency to determine regulatory review period 02 Feb, 2024 US8129374
Letter from FDA or Dept of Agriculture re PTE application 24 Jan, 2024 US7820657
Letter from FDA or Dept of Agriculture re PTE application 24 Jan, 2024 US8129374
Letter from FDA or Dept of Agriculture re PTE application 24 Jan, 2024 US8357690



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