Treatments for cushing's syndrome that do not significantly affect cardiac rhythms

Abstract

Applicant discloses methods, uses, and compositions of heteroaryl ketone fused azadecalin compounds for treating patients suffering from Cushing's syndrome or Cushing's Disease (collectively “CS”) without causing significant QT interval prolongation (e.g., the QT interval following administration differs by no more than about 10 milliseconds from the baseline QT interval). Therapeutic amounts of the heteroaryl ketone fused azadecalin compounds may be between about 50 milligrams per day (mg/day) and up to about 500 mg/day, and in embodiments may be up to about 800 mg/day. The methods, uses, and compositions may reduce QT interval, and may be useful for treating QT prolongation in patients, including CS patients. The treatments may be oral treatments administered to a fasted patient, or to a fed patient. The heteroaryl ketone fused azadecalin compounds may be administered with a meal. The heteroaryl ketone fused azadecalin compound may be relacorilant, which 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: