Tildacerfont is a potent and orally active corticotrophin-releasing factor type 1 (CRF1) receptort antagonis. Tildacerfont effectively reduces adrenocorticotropic hormone (ACTH) and adrenal androgen levels. Tildacerfont has favourable safety profile. Tildacerfont can be used for researching congenital adrenal hyperplasia.