Prospective, Open-Label, Multicenter, International Study of Mifepristone for Symptomatic Treatment of Cushing's Syndrome Caused by Ectopic Adrenal Corticotrophin Hormone (ACTH) Secretion
Cushing's Syndrome
About this trial
This is an interventional treatment trial for Cushing's Syndrome focused on measuring Cortisol, Cushing's Syndrome, Ectopic ACTH Secretion, Cushing Syndrome
Eligibility Criteria
- INCLUSION CRITERIA:
Subjects will be included if they have ALL of the three following criteria:
Hypercortisolism from Cushing's syndrome caused by ACTH ectopic secretion
AND
Glycemic disorder that is considered to be caused or worsened by the hypercortisolism
AND
At least one symptom attributable to the Cushing's syndrome.
EXCLUSION CRITERIA:
- Evidence for Cushing's disease as judged by positive inferior petrosal sinus sampling or a lesion on pituitary MRI with positive CRH test
- Suspected or known adrenocortical cancer or adenomas, as judged by ACTH values less than 10 pg/ml and adrenal mass
- Subjects with cyclic Cushing's syndrome defined by any measurement of Urinary Free Cortisol over the previous 2 months less than 2 N
- Children (age less than 18) and patients over 85 years
- Pregnant or lactating women. A urinary pregnancy test will be performed in women of childbearing potential unless they have a history of menopause prior to Cushing's syndrome or hysterectomy
- Life expectancy less than two months
- Surgery planned within 8 weeks after inclusion, especially bilateral adrenalectomy
- Uncontrolled diabetes (plasma glucose greater than 15.0 mmol/L (270 mg/L) and/or HbA1c greater than 10%)
- Uncontrolled hypertension (blood pressure greater than 180/110 mmHg)
- Recent (less than two weeks prior to inclusion) initiation of corrective treatments for depression
- Clinically significantly impaired cardiovascular function (e.g. stage IV cardiac failure)
- Severe liver disease (liver enzymes greater than or equal to 3 x the institutional upper limit of normal range)
- Severe renal impairment (serum creatinine greater than or equal to 2.2 mg/dl or creatinine clearance less than 30 ml/min)
- Severe hypokalemia (plasma K below 3.0 mmol/L)
- Uncontrolled severe active infection
- In women, known endometrial cancer, history of endometrial hyperplasia or vaginal bleeding of unknown cause
- Premenopausal women with hemorrhagic disorders or on anticoagulants
- Recent (less than two weeks prior to inclusion) initiation of or significant change in dose of anti-tumor therapy
- Previous treatment with approved or experimental steroidogenesis inhibitors, somatostatin analogues within one week of admission (eight weeks for patients on octreotide LAR or on lanreotide autogel)
- Plasma mitotane concentration greater than 5 microgram/ml
- Impaired mental capacity or markedly abnormal psychiatric evaluation that precludes informed consent
- Body weight over 136 kg, which is the limit for the tables used in the scanning areas
- Inherited porphyria
- Positive pregnancy test at inclusion
- Use of antiretroviral agents, midazolam, cabergoline, erythromycin, or grapefruit juice within two weeks of the study
Sites / Locations
- National Institutes of Health Clinical Center, 9000 Rockville Pike
- CHU de Bordeaux Hopital Haut Leveque
- C.H.U Albert Michallon
- C.H.U. de Bicetre
- CHRU de Lille
- Hopital de la Timone
- AP-HP, Hopital Cochin Pavillon CORNIL
- CHU de Toulouse
- University of Wuerzburg
- Universita Degli Studi
- University of Turin
- University of Padova
- Internal Medicine Endocrinology
- University Hosiptal of Groningen
- Erasmus Medical Center
Arms of the Study
Arm 1
Experimental
Prospective, open-label, study of mifepristone
Eligible subjects will start study treatment at the dose of 600 mg/day (given as one 200 mg tablet tid, per os). Total duration of treatment will not exceed 12 months. At the end of 12-month treatment, investigators may petition to extend treatment on a case-by-case basis.