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1.
Expert Opin Pharmacother ; 24(5): 557-576, 2023 Apr.
Article in English | MEDLINE | ID: mdl-36927238

ABSTRACT

INTRODUCTION: Untreated Cushing's syndrome (CS) is associated with significant morbidity and mortality. Cortisol normalization is a key goal to treatment. Pituitary surgery remains the first-line approach for Cushing's disease, but sometimes it is impracticable, unsuccessful, or complicated by recurrence. Medical therapy has been historically considered a palliative. However, in the latest years, interest on this topic has grown due to both the availability of new drugs and the reevaluation of the old, commonly used drugs in clinical practice. AREAS COVERED: In this article, we will discuss the current options and future directions of medical therapy for CS, aiming at fitting best patients' features. An extensive literature search regarding already approved and investigational principles was conducted (PubMed, ClinicalTrials.gov. Available drugs include inhibitors of ACTH secretion, steroidogenesis inhibitors, and glucocorticoid receptor antagonists; drugs acting at different levels can be also combined in uncontrolled patients. EXPERT OPINION: Since there is still no standardized pharmacological approach and the superiority of one drug over another has not been established yet in the absence of comparative studies, each time clinicians' choices should be patient-tailored. Age, gender, tumor features, severity of hypercortisolism, comorbidities/complications, rapidity of action, side effects, drug-drug interactions, contraindications, availability, patients' preferences, and costs should be all considered.


Subject(s)
Cushing Syndrome , Pituitary ACTH Hypersecretion , Humans , Pituitary ACTH Hypersecretion/drug therapy , Pituitary ACTH Hypersecretion/complications , Cushing Syndrome/drug therapy
2.
Expert Rev Endocrinol Metab ; 17(2): 99-109, 2022 03.
Article in English | MEDLINE | ID: mdl-35220871

ABSTRACT

INTRODUCTION: Endogenous Cushing's syndrome (CS) is a rare, multi-systemic condition resulting from chronic glucocorticoid excess sustained by a pituitary adenoma (Cushing's disease, CD), an adrenal adenoma or, less frequently, a neuroendocrine tumor. The optimal first-line option is surgery, but when it is contraindicated/refused, or in case of severe, life-threatening disease, medical treatment is a first-line choice. Osilodrostat (LCI699, Isturisa®) is a new, orally active adrenal steroidogenesis inhibitor currently approved by the FDA and EMA for the treatment of endogenous CS. AREAS COVERED: We illustrate the pharmacologic profile of osilodrostat and summarize the efficacy and safety of osilodrostat from the first phase I studies to the most recent evidence. EXPERT OPINION: Osilodrostat acts as a potent, reversible inhibitor of 11ß-hydroxylase (CYP11B1) and 18-hydroxylase (or aldosterone synthase, CYP11B2), counteracting both gluco- and mineralocorticoid production. According to the results of the LINC1, LINC2, and LINC3 studies and the preliminary findings of LINC4, osilodrostat offers an excellent efficacy in controlling hypercortisolism with a good tolerability. The non-negligible risk of adrenal insufficiency/steroid withdrawal symptoms, hypokalemia, and hyperandrogenism disorders, and the possibility, albeit rare, of pituitary tumor enlargement, require further confirmation and careful monitoring.


Subject(s)
Cushing Syndrome , Pituitary ACTH Hypersecretion , Pituitary Neoplasms , Adult , Cushing Syndrome/drug therapy , Humans , Imidazoles/therapeutic use , Mixed Function Oxygenases/therapeutic use , Pituitary ACTH Hypersecretion/drug therapy , Pituitary Neoplasms/drug therapy , Pyridines , Tablets/therapeutic use
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