Patent ID: 11944620
Assignee: ASTELLAS PHARMA INC.
Field: Pharmaceuticals (Chemistry)
Classification: CPC A | IPC A

Claim 8:
9. The pharmaceutical composition according to claim 3, wherein the proportion of crystals of 6-ethyl-3-({3-methoxy-4-[4-(4-methylpiperazin-1-yl)piperidin-1-yl]phenyl}amino)-5-(tetrahydro-2H-pyran-4-ylamino)pyrazine-2-carboxamide hemifumarate is 62% to 98% with respect to the total amount of 6-ethyl-3-({3-methoxy-4-[4-(4-methylpiperazin-1-yl)piperidin-1-yl]phenyl}amino)-5-(tetrahydro-2H-pyran-4-ylamino)pyrazine-2-carboxamide hemifumarate in the pharmaceutical composition.