A method for achieving an area under the plasma concentration versus time curve from time zero to the last quantifiable concentration of 8330 ng·h/mL to 15600 ng·h/mL of 2-(tert-butylamino)-4-((1R,3R,4R)-3-hydroxy-4-methylcyclohexylamino)-pyrimidine-5-carboxamide or a pharmaceutically acceptable salt, stereoisomer, or isotopologue thereof in a patient having a liver fibrotic disorder, diabetes, interstitial pulmonary fibrosis or a metabolic syndrome leading to a liver fibrotic disorder, comprising administering to the patient an effective amount of a pharmaceutical composition comprising 2-(tert-butylamino)-4-((1R,3R,4R)-3-hydroxy-4-methylcyclohexylamino)-pyrimidine-5-carboxamide or a pharmaceutically acceptable salt, stereoisomer, solvate, hydrate, isotopologue or solid form thereof,
- wherein the pharmaceutical composition comprises about 20-40% by weight of 2-(tert-butylamino)-4-((1R,3R,4R)-3-hydroxy-4-methylcyclohexylamino)-pyrimidine-5-carboxamide or a pharmaceutically acceptable salt, stereoisomer, solvate, hydrate, isotopologue or solid form thereof, about 30-50% by weight of microcrystalline cellulose, about 20-40% by weight of mannitol, about 1-10% by weight of carboxymethyl cellulose, about 1-10% by weight of hydroxypropyl methylcellulose and about 0.1-2% by weight of magnesium stearate.