| CPC A61K 31/417 (2013.01) [A61K 9/0053 (2013.01); A61P 35/00 (2018.01)] | 28 Claims |
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1. A method for treating therapeutic treatment of desmoid tumor in a patient in need thereof comprising orally administering to the patient 150 mg (free base equivalent dose) of nirogacestat or a pharmaceutically acceptable salt thereof twice daily without concomitant administration of a moderate or strong CYP3A inhibitor or a moderate or strong CYP3A inducer, wherein the method further comprises one or more of:
(a) upon the patient having Grade 3 or 4 diarrhea persisting for at least 3 days despite medical therapy, withholding the nirogacestat or pharmaceutically acceptable salt thereof until the diarrhea is resolved to no higher than a Grade 1 diarrhea or baseline and then restarting oral administration of the nirogacestat or pharmaceutically acceptable salt thereof at a dose of 100 mg (free base equivalent dose) twice daily;
(b) upon the patient having Grade 3 or 4 hypophosphatemia persisting for at least 3 days despite replacement therapy, withholding the nirogacestat or pharmaceutically acceptable salt thereof until the hypophosphatemia is resolved to no higher than a Grade 1 hypophosphatemia or baseline and then restarting oral administration of the nirogacestat or pharmaceutically acceptable salt thereof at a dose of 100 mg (free base equivalent dose) twice daily;
(c) upon the patient having Grade 3 or 4 hypokalemia despite replacement therapy, withholding the nirogacestat or pharmaceutically acceptable salt thereof until the hypokalemia is resolved to no higher than a Grade 1 hypokalemia or baseline and then restarting oral administration of the nirogacestat or pharmaceutically acceptable salt thereof at a dose of 100 mg (free base equivalent dose) twice daily;
(d) upon the patient having an alanine transaminase (ALT) or aspartate aminotransferase (AST) of 3 to 5 times upper limit of normal (ULN), withholding the nirogacestat or pharmaceutically acceptable salt thereof until the ALT, AST, or both are resolved to less than 3 times ULN or baseline and then restarting oral administration of the nirogacestat or pharmaceutically acceptable salt thereof at a dose of 100 mg (free base equivalent dose) twice daily; and
(e) upon the patient having an ALT or AST of greater than 5 times ULN, permanently discontinuing treatment with the nirogacestat or pharmaceutically acceptable salt thereof.
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