About this trial
To characterize the impact of Isturisa on clinical features and comorbidities associated with MACS. The investigators hypothesize that patients treated with Isturisa will exhibit significantly better metabolic indicators (such as fasting glucose, HbA1c, and lipid profile), blood pressure, weight, body composition and bone mineral density than at Baseline. The investigators also assess the effect of Isturisa on quality of life and psychological symptoms in patients with MACS. The investigators hypothesize that treatment with Isturisa will lead to significant improvements in quality-of-life scores and reductions in depression scores compared to Baseline.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Adults aged ≥18 years.
Serum cortisol >1.8 µg/dL after 1 mg overnight dexamethasone suppression test (DST).
Presence of adrenal adenoma confirmed by imaging (CT or MRI).
Ability to provide informed consent.
Disqualifiers
Known diagnosis of Cushing's syndrome or overt hypercortisolism.
Current or recent (within 3 months) treatment with glucocorticoids or medications affecting cortisol production (e.g., ketoconazole, metyrapone).
Severe hepatic impairment or renal failure.
Pregnancy or breastfeeding.
Trial design
Single group
Treatments tested in this trial
Osilodrostat (Isturisa)
DrugThe intervention aims to evaluate the impact of osilodrostat on cardiometabolic outcomes, bone mineral density, body composition, adrenal tumor size or hyperplasia, and biochemical markers of cortisol excess.
Treatment groups
Trial outcomes
Primary outcomes
Change in fasting glucose, HbA1c
glycemic control: fasting glucose, HbA1c
Change in bone mineral density (g/cm²)
Bone mineral density (g/cm²) measured by DEXA scan.
Change in body weight (kg) from baseline during Isturisa treatment
Change in body weight will be measured at baseline and every follow-up visit (approximately every 3 months) throughout the 2-year treatment period with Isturisa.
Change in lipid profile from baseline during Isturisa treatment
Serum lipid profile (LDL-C, HDL-C, total cholesterol, triglycerides) will be assessed at baseline and every follow-up visit (approximately every 3 months) during the 2-year treatment period.
Secondary outcomes
Change in Quality of Life as assessed by Short Form -36 (SF-36)
Assessment of changes in quality of life using the SF-36 Health Survey. The SF-36 consists of 36 items measuring 8 health domains, with total scores ranging from 0 to 100, where higher scores indicate better quality of life.
Change in carotid intima-media thickness (CIMT)
Carotid intima-media thickness (milimeters) will be measured using carotid ultrasound to evaluate vascular changes associated with mild autonomous cortisol secretion. CIMT will be assessed at baseline and at follow-up imaging performed approximately every 12 months during the 2-year treatment period.
Change in adrenal adenoma/hyperplasia size (mm)
Adenoma maximal diameter (mm) measured on non-contrast CT at each imaging time point.
Change in Depression Scores as assessed by the Beck Depression Inventory-II
Assessment of changes in depressive symptoms using the Beck Depression Inventory-II (BDI-II). The BDI-II is a 21-item validated questionnaire with total scores ranging from 0 to 63, where higher scores indicate more severe depressive symptoms.
Other outcomes
Change in Inflammatory Biomarkers
Exploratory evaluation of changes in inflammatory biomarkers, specifically high-sensitivity C-reactive protein (hsCRP) and interleukin-6 (IL-6), during treatment with Isturisa in patients with mild autonomous cortisol secretion (MACS). These markers are included in the optional research-specific procedures to assess potential inflammatory or physiologic effects of Isturisa beyond cortisol regulation.
Sponsors and contacts
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Johns Hopkins University
Lead sponsor
Recordati Rare Diseases Inc
Collaborator