Study to Evaluate CORT125134 in Patients With Cushing's Syndrome


About this study

Cushing's syndrome is a relatively rare disorder caused by prolonged exposure to high levels of the glucocorticoid hormone cortisol. Cushing's syndrome may result from elevated endogenous or exogenous sources of cortisol. Endogenous Cushing's syndrome resulting from cortisol overproduction by the adrenal glands is the subject of this protocol. Patients with exogenous Cushing's syndrome, which develops as a side effect of chronic administration of high doses of glucocorticoids, are not eligible for enrollment in this study. The purpose of this study is to evaluate the safety and efficacy of CORT125134 for treatment of endogenous Cushing's syndrome. The multicenter study will be conducted in the United States and in Europe.

Participation eligibility

Participant eligibility includes age, gender, type and stage of disease, and previous treatments or health concerns. Guidelines differ from study to study, and identify who can or cannot participate. There is no guarantee that every individual who qualifies and wants to participate in a trial will be enrolled. Contact the study team to discuss study eligibility and potential participation.

Inclusion Criteria:

  1. Has a confirmed diagnosis of endogenous Cushing's syndrome.
  2. Requires medical treatment of hypercortisolemia.
  3. Meets at least one of the following criteria:
    1. Has type 2 diabetes mellitus.
    2. Has impaired glucose tolerance.
    3. Has hypertension.

Exclusion Criteria:

  1. Has non-endogenous source of hypercortisolemia
  2. Has uncontrolled, clinically significant hypothyroidism or hyperthyroidism
  3. Has poorly controlled hypertension
  4. Has Stage ≥ 4 renal failure

Participating Mayo Clinic locations

Study statuses change often. Please contact the study team for the most up-to-date information regarding possible participation.

Mayo Clinic Location Status

Rochester, Minn.

Mayo Clinic principal investigator

Irina Bancos, M.D.

Closed for enrollment

More information


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