Applicant discloses methods and uses of the heteroaryl
ketone fused azadecalin compound relacorilant for treating patients suffering from endogenous hypercortisolism (CS) (including Cushing'
s syndrome and Cushing's
Disease) effective reduce or prevent the loss of tissue lean
mass; in embodiments, the methods and uses are effective to increase tissue lean
mass as compared to the patient's tissue lean
mass prior to administration of relacorilant. The methods and uses of relacorilant for treating patients suffering from CS are further effective to reduce
body weight and
waist circumference of the patient. Therapeutic amounts of relacorilant may be between about 50 milligrams per day (mg / day) and up to about 800 mg / day, e.g., 100 mg / day, 200 mg / day, 300 mg / day, 400 mg / day, or 500 mg / day. The treatments may be oral treatments, and relacorilant may be administered with food, or without food. Relacorilant is (R)-(1-(4-fluorophenyl)-6-((1-methyl-1H-pyrazol-4-yl)
sulfonyl)-4,4a,5,6,7,8-hexahydro-1H-pyrazolo[3,4-g]isoquinolin-4a-yl)(4-(
trifluoromethyl)
pyridine-2-yl)methanone, which has the structure (A).