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Last Updated: December 18, 2025

Claims for Patent: 11,963,952

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Summary for Patent: 11,963,952

Title:	Anti-androgens for the treatment of metastatic castration-sensitive prostate cancer
Abstract:	Described herein are methods of treating metastatic castration-sensitive prostate cancer with anti-androgens, including but not limited to, 4-[7-(6-cyano-5-trifluoromethylpyridin-3-yl)-8-oxo-6-thioxo-5,7-diazaspiro[3.4]oct-5-yl]-2-fluoro-N-methylbenzamide.
Inventor(s):	Margaret K. Yu
Assignee:	Aragon Pharmaceuticals Inc
Application Number:	US18/168,204
Patent Litigation and PTAB cases:	See patent lawsuits and PTAB cases for patent 11,963,952
Patent Claims:	1. A method for treating metastatic castration-sensitive prostate cancer in a male human consisting essentially of administering a therapeutically effective amount of an anti-androgen to a male human with metastatic castration-sensitive prostate cancer, wherein the anti-androgen is 4-[7-(6-cyano-5-trifluoromethylpyridin-3-yl)-8-oxo-6-thioxo-5,7-diazaspiro[3.4]oct-5-yl]-2-fluoro-N-methylbenzamide. 2. The method of claim 1, wherein administration of the anti-androgen provides an increase in overall survival of the male human relative to the overall survival rate of a population of male humans with the metastatic castration-sensitive prostate cancer, said population having been administered a placebo in combination with an androgen deprivation therapy. 3. The method of claim 1, wherein administration of the anti-androgen provides an increase in progression-free survival of the male human relative to the progression-free survival rate of a population of male humans with the metastatic castration-sensitive prostate cancer, said population having been administered a placebo in combination with an androgen deprivation therapy. 4. The method of claim 1, wherein 4-[7-(6-cyano-5-trifluoromethylpyridin-3-yl)-8-oxo-6-thioxo-5,7-diazaspiro[3.4]oct-5-yl]-2-fluoro-N-methylbenzamide is administered orally to the male human. 5. The method of claim 1, wherein 4-[7-(6-cyano-5-trifluoromethylpyridin-3-yl)-8-oxo-6-thioxo-5,7-diazaspiro[3.4]oct-5-yl]-2-fluoro-N-methylbenzamide is administered orally to the male human at a dose of about 240 mg per day. 6. The method of claim 1, wherein the dose of 4-[7-(6-cyano-5-trifluoromethylpyridin-3-yl)-8-oxo-6-thioxo-5,7-diazaspiro[3.4]oct-5-yl]-2-fluoro-N-methylbenzamide is decreased to 180 mg per day or 120 mg per day if the male human experiences a greater than or equal to Grade 3 toxicity. 7. The method of claim 1, wherein the dose of 4-[7-(6-cyano-5-trifluoromethylpyridin-3-yl)-8-oxo-6-thioxo-5,7-diazaspiro[3.4]oct-5-yl]-2-fluoro-N-methylbenzamide is decreased to 180 mg per day if the male human experiences a greater than or equal to Grade 3 toxicity. 8. The method of claim 1, wherein the dose of 4-[7-(6-cyano-5-trifluoromethylpyridin-3-yl)-8-oxo-6-thioxo-5,7-diazaspiro[3.4]oct-5-yl]-2-fluoro-N-methylbenzamide is decreased to 120 mg per day if the male human experiences a greater than or equal to Grade 3 toxicity.

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