| abstract |
A solid dispersion, a preparation method thereof, and a solid preparation comprising the solid dispersion. The solid dispersion contains (R)-4-amino-1-(1-(but-2-alkynoyl)pyrrolidin-3-yl)-3-(4-(2,6-difluorophenoxy) )-phenyl)-1,6-dihydro-7H-pyrrolo[2,3-d]pyridazin-7-one or a pharmaceutically acceptable salt thereof and a carrier material selected from hypromellose acetate Succinate, Hypromellose Phthalate. |