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PREOPERATIVE TREATMENT WITH METYRAPONE IN PATIENTS WITH CUSHING'S SYNDROME DUE TO ADRENAL ADENOMA.

ABSTRACT: OBJECTIVE:Metyrapone has been approved for the treatment of patients with Cushing's syndrome (CS), but only few retrospective clinical studies are available. The aim of our study was the prospective assessment of metyrapone as pre-operative treatment. DESIGN AND METHODS:Before adrenalectomy, 7 patients with ACTH-independent CS due to adrenal adenoma were prospectively treated with metyrapone for 3 months in 3 tertiary academic centers, with endocrine work-up and clinical evaluation at screening and at predefined evaluation time points (Day 14, 31, 48, 65, 82). RESULTS:In all patients, UFC levels decreased up to normal range from baseline to Day 82 [609 (188 - 1476) vs 69 (28 - 152) nmol/24 h, p <0.02], with a reduction of serum and salivary cortisol levels, and no significant increase of plasma ACTH and serum DHEAS levels. Clinical improvement was reported on quality of life [+16.7 (+4.2; +52.00) points, p <0.04) and pressure control [systolic pressure, -25 (-52;-10) mmHg, p <0.01; diastolic pressure, -16 (-50; +2 mmHg), p <0.03)]. No significant change in weight, electrolytes, glycemic and lipid profile was reported. Although in women a significant increase of testosterone and androstenedione was reported, no worsening of clinical hyperandrogenism was observed. All drug-related adverse events (nausea, fatigue, low grade fever, edema of lower limbs and facial rash) were grade 1 or 2 and generally transient. CONCLUSIONS:This prospective pilot study demonstrated that metyrapone is effective in normalizing biochemical and clinical parameters in patients with CS due to adrenal adenoma before surgical intervention, with minimal side effects.

SUBMITTER: Puglisi S

PROVIDER: S-EPMC6215797 | biostudies-literature | 2018 Sep

REPOSITORIES: biostudies-literature

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PREOPERATIVE TREATMENT WITH METYRAPONE IN PATIENTS WITH CUSHING'S SYNDROME DUE TO ADRENAL ADENOMA.

Puglisi Soraya S Perotti Paola P Barbot Mattia M Cosio Paolo P Scaroni Carla C Stigliano Antonio A Lardo Pina P Morelli Valentina V Polledri Elisa E Chiodini Iacopo I Reimondo Giuseppe G Pia Anna A Terzolo Massimo M

Endocrine connections 20180901

<h4>Objective</h4>Metyrapone has been approved for the treatment of patients with Cushing's syndrome (CS), but only few retrospective clinical studies are available. The aim of our study was the prospective assessment of metyrapone as pre-operative treatment.<h4>Design and methods</h4>Before adrenalectomy, 7 patients with ACTH-independent CS due to adrenal adenoma were prospectively treated with metyrapone for 3 months in 3 tertiary academic centers, with endocrine work-up and clinical evaluatio ...[more]

PMID: 30352400

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Project description:Objective: Germline ARMC5 mutations are considered to be the main genetic cause of primary macronodular adrenal hyperplasia (PMAH). PMAH is associated with high variability of cortisol secretion caused from subclinical hypercortisolism to overt Cushing's syndrome (CS), in general due to bilateral adrenal nodules and rarely could also be due to non-synchronic unilateral adrenal nodules. The frequency of adrenal incidentalomas (AI) associated with PMAH is unknown. This study evaluated germline allelic variants of ARMC5 in patients with bilateral and unilateral AI and in patients with overt CS associated with bilateral adrenal nodules. Methods: We performed a retrospective multicenter study involving 123 patients with AI (64 bilateral; 59 unilateral). We also analyzed 20 patients with ACTH pituitary independent overt CS associated with bilateral adrenal nodules. All patients underwent germline genotyping analysis of ARMC5; abdominal CT and were classified as normal, possible or autonomous cortisol secretion, according to the low doses of dexamethasone suppression test. Results: We identified only one pathogenic allelic variant among the patients with bilateral AI. We did not identify any pathogenic allelic variants of ARMC5 in patients with unilateral AI. Thirteen out of 20 patients (65%) with overt CS and bilateral adrenal nodules were carriers of pathogenic germline ARMC5 allelic variants, all previously described. The germline ARMC5 mutation was observed in only one patient with bilateral AI; it was associated with autonomous cortisol secretion and showed to be a familial form. Conclusion: The rarity of germline ARMC5 mutations in AI points to other molecular mechanisms involved in this common adrenal disorder and should be investigated. In contrast, patients with overt Cushing's syndrome and bilateral adrenal nodules had the presence of ARMC5 mutations that were with high prevalence and similar to the literature. Therefore, we recommend the genetic analysis of ARMC5 for patients with established Cushing's syndrome and bilateral adrenal nodules rather than patients with unilateral AI.

Dataset Information

PREOPERATIVE TREATMENT WITH METYRAPONE IN PATIENTS WITH CUSHING'S SYNDROME DUE TO ADRENAL ADENOMA.

Publications

PREOPERATIVE TREATMENT WITH METYRAPONE IN PATIENTS WITH CUSHING'S SYNDROME DUE TO ADRENAL ADENOMA.

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