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Combination Osilodrostat and Cabergoline in Cushing's Disease (COSCA-ECD)
Combination Osilodrostat and Cabergoline Versus Osilodrostat Alone in Cushing's Disease in Iraq: Assessment of Efficacy and Safety
Cushing disease remains a challenging endocrine disorder in which persistent or recurrent hypercortisolism often requires medical therapy after surgery or when surgery is not feasible. Combination medical therapy has emerged as a rational strategy to improve biochemical control through complementary mechanisms while potentially reducing treatment escape and dose-related toxicity. Cabergoline exerts pituitary D2-receptor-mediated inhibition of ACTH secretion and may provide partial cortisol control in selected patients, although treatment escape and variable durability remain important limitations. Osilodrostat is a potent 11β-hydroxylase inhibitor that produces rapid and often substantial reductions in cortisol secretion, with clinical improvement in metabolic and cardiovascular features of hypercortisolism. The osilodrostat-cabergoline combination is mechanistically attractive because it pairs central ACTH suppression with peripheral blockade of cortisol synthesis, but published evidence remains limited to small real-world experiences and does not yet define optimal sequencing, dosing, or long-term benefit. Safety considerations include adrenal insufficiency from overtreatment, osilodrostat-associated hypertension from mineralocorticoid precursor accumulation, and hyperandrogenism due to steroid precursor shunting.
Combination medical therapy in Cushing disease is a promising individualized approach, and the osilodrostat-cabergoline pairing is biologically plausible and potentially effective, but current literature is insufficient to support firm recommendations regarding efficacy, safety, or patient selection.
The study aims to evaluate whether a combination can result in rapid, more control of Cushing's disease (clinically and biochemically)? Can cabergoline reduces Osilodrostat dose requirement, reduces Osilodrostat related mineralocorticoid and hyperandrogenism side effects?
Studie Overzicht
Toestand
Interventie / Behandeling
Gedetailleerde beschrijving
Studietype
Inschrijving (Geschat)
Fase
- Fase 4
Contacten en locaties
Studie Locaties
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Basra, Irak, 61001
- Faiha Specialized Diabetes, Endocrine, and Metabolism Center
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Karbala, Irak
- Al-Hassan Metabolism Endocrine and Diabetes Center
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Mosul, Irak
- Al-Waffa Specialized Center for Diabetes and Endocrinology
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Najaf, Irak
- Najaf Specialized Diabetes and Endocrine Center
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Nasiriyah, Irak
- Thi-Qar Specialized Diabetes, Endocrine and Metabolism Center
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Deelname Criteria
Geschiktheidscriteria
Leeftijden die in aanmerking komen voor studie
- Volwassen
- Oudere volwassene
Accepteert gezonde vrijwilligers
Beschrijving
Inclusion Criteria:
- Cushing's disease: Not treated or received treatment (TSS and/or radio surgery). And
- Active disease confirmed with repeated two biochemical tests (1-mg overnight dexamethasone suppression test and late night salivary cortisol), And
- Inappropriate ACTH elevation, And
- Positive ACTH response to desmopressin stimulation test, And
- MRI finding of pituitary adenoma.
Exclusion Criteria:
- Severe hepatic impairment (Child-Pugh C).
- Pregnancy.
Studie plan
Hoe is de studie opgezet?
Ontwerpdetails
- Primair doel: Behandeling
- Toewijzing: Niet-gerandomiseerd
- Interventioneel model: Sequentiële toewijzing
- Masker: Geen (open label)
Wapens en interventies
Deelnemersgroep / Arm |
Interventie / Behandeling |
|---|---|
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Actieve vergelijker: Osilodrostat alone
Osilodrostat up to 15 mg daily
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1 mg (pill) twice daily for two weeks, titrated to 2.5 mg (5 mg pill divided) twice daily for two weeks, then 7.5 (half 5 mg pill and 5 mg pill) for four weeks, then 10 mg (5 mg pill twice daily) for four weeks, then 15 mg (5 mg pill thrice daily).
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Actieve vergelijker: Combination osilodrostat and cabergoline
Osilodrostat up to 5 mg daily plus Cabergoline up to 3 mg weekly
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1 mg (pill) twice daily for two weeks, titrated to 2.5 mg (5 mg pill divided) twice daily for two weeks, then Add: Cabergoline 0.5 mg twice weekly for four weeks, titrated to 1 mg twice weekly for four weeks, then 1 mg thrice weekly.
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Wat meet het onderzoek?
Primaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
|---|---|---|
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Changes in serum cortisol
Tijdsspanne: At 2 weeks, 4 weeks, 8 weeks, 12 weeks, 24 weeks, 36 weeks, 48 weeks.
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serum cortisol (8-9 am and 6-7 pm).
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At 2 weeks, 4 weeks, 8 weeks, 12 weeks, 24 weeks, 36 weeks, 48 weeks.
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Number of patients achieved serum cortisol (7-12 Mg/dL)
Tijdsspanne: 4 weeks, 8 weeks, 12 weeks, 24, weeks, 36 weeks, and 48 weeks.
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measurement of 8-9 am serum cortisol.
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4 weeks, 8 weeks, 12 weeks, 24, weeks, 36 weeks, and 48 weeks.
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Changes in Cushing 's Quality-of-Life questionnaire 12-items (CushingQoL) score for the patients quality of life.
Tijdsspanne: At 4 weeks, 8 weeks, 12 weeks, 24 weeks, 36 weeks, and 48 weeks.
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Changes in CushingQoL (12 items) questionnaire.
The lowest score is 12 and highest score is 60.
The highest the score, the better life quality and clinical improvement in Cushing syndrome.
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At 4 weeks, 8 weeks, 12 weeks, 24 weeks, 36 weeks, and 48 weeks.
|
Secundaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
|---|---|---|
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Changes in the patients' Body weight (kg)
Tijdsspanne: At 2 weeks, 4 weeks, 8 weeks, 12 weeks, 24 weeks, 36 weeks, and 48 weeks.
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measurement of the patients' body weight using scale in the early morning and fasting, bare feet, light clothes, using electronic scale.
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At 2 weeks, 4 weeks, 8 weeks, 12 weeks, 24 weeks, 36 weeks, and 48 weeks.
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Changes in the patients' Blood pressure (increase or decrease) and increase or decrease requirements for blood pressure lowering medications.
Tijdsspanne: At 2 weeks, 4 weeks, 8 weeks, 12 weeks, 24 weeks, 36 weeks, and 48 weeks.
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Measurement of the patients' blood pressure (SBP/DBP mmHg) using standard electronic arm cuff blood pressure machine.
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At 2 weeks, 4 weeks, 8 weeks, 12 weeks, 24 weeks, 36 weeks, and 48 weeks.
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Changes in HbA1c (%)
Tijdsspanne: At 12 weeks, 24 weeks, 36 weeks, and 48 weeks.
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measurement of the patients HbA1c % using BioRad D10
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At 12 weeks, 24 weeks, 36 weeks, and 48 weeks.
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Assessment of clinical hyperandrogenic features (acne and hirsutism), whether increase or decrease for female patients
Tijdsspanne: At 12 weeks, 24 weeks, 36 weeks, and 48 weeks.
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Acne will be assessed by clinical examination and reported as improved or increased. Hirsutism will be assessed using the changes in the modified Ferrimann-Gallwey (mFG) score (0 - 36), the highest the score, the more severe hirsutism. |
At 12 weeks, 24 weeks, 36 weeks, and 48 weeks.
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Changes in plasma ACTH
Tijdsspanne: At 2 weeks, 4 weeks, 8 weeks, 12 weeks, 24 weeks, 36 weeks, and 48 weeks.
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measurement of early morning plasma ACTH (pg/ml)
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At 2 weeks, 4 weeks, 8 weeks, 12 weeks, 24 weeks, 36 weeks, and 48 weeks.
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Changes in serum dehydroepiandrosterone acetate (Mg/dl)
Tijdsspanne: At 2 weeks, 4 weeks, 8 weeks, 12 weeks, 24 weeks, 36 weeks, and 48 weeks.
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measurement of serum dehydroepiandrosterone acetate (Mg/dl)
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At 2 weeks, 4 weeks, 8 weeks, 12 weeks, 24 weeks, 36 weeks, and 48 weeks.
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Changes in the corrected QT interval on electrocardiograph (ECG).
Tijdsspanne: At 2 weeks, 4 weeks, 8 weeks, 12 weeks, 24 weeks, 36 weeks, and 48 weeks.
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Performance of ECG for assessment and record of the c QT interval.
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At 2 weeks, 4 weeks, 8 weeks, 12 weeks, 24 weeks, 36 weeks, and 48 weeks.
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Changes in serum potassium
Tijdsspanne: At 2 weeks, 4 weeks, 8 weeks, 12 weeks, 24 weeks, 36 weeks, and 48 weeks.
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measurement of serum potassium
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At 2 weeks, 4 weeks, 8 weeks, 12 weeks, 24 weeks, 36 weeks, and 48 weeks.
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Development of symptoms of hypoadrenalism
Tijdsspanne: At 2 weeks, 4 weeks, 8 weeks, 12 weeks, 24 weeks, 36 weeks, and 48 weeks.
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Development of symptoms of hypoadrenalism in the form of (anorexia, nausea, vomiting, fatigue, abdominal pain, dizziness, and hypotension)
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At 2 weeks, 4 weeks, 8 weeks, 12 weeks, 24 weeks, 36 weeks, and 48 weeks.
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Number of patients will have morning serum cortisol less than (5 Mg/dl)
Tijdsspanne: At 2 weeks, 4 weeks, 8 weeks, 12 weeks, 24 weeks, 36 weeks, and 48 weeks.
|
measurement of serum cortisol in the morning and fasting state.
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At 2 weeks, 4 weeks, 8 weeks, 12 weeks, 24 weeks, 36 weeks, and 48 weeks.
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Andere uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
|---|---|---|
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Other drug related side effects
Tijdsspanne: At 2 weeks, 4 weeks, 8 weeks, 12 weeks, 24 weeks, 36 weeks, and 48 weeks.
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Side effects of Osilodrostat and cabergoline
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At 2 weeks, 4 weeks, 8 weeks, 12 weeks, 24 weeks, 36 weeks, and 48 weeks.
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Medewerkers en onderzoekers
Sponsor
Onderzoekers
- Hoofdonderzoeker: Haider A Alidrisi, Univeristy of basrah, Faiha Specialized Diabetes, Endocrine, and Metabolism Center
- Hoofdonderzoeker: Ibrahim H Hussein, MD, Univeristy of basrah, Faiha Specialized Diabetes, Endocrine, and Metabolism Center
- Studie stoel: Abbas A Mansour, Univeristy of basrah, Faiha Specialized Diabetes, Endocrine, and Metabolism Center
Publicaties en nuttige links
Algemene publicaties
- Gadelha M, Bex M, Feelders RA, Heaney AP, Auchus RJ, Gilis-Januszewska A, Witek P, Belaya Z, Yu Y, Liao Z, Ku CHC, Carvalho D, Roughton M, Wojna J, Pedroncelli AM, Snyder PJ. Randomized Trial of Osilodrostat for the Treatment of Cushing Disease. J Clin Endocrinol Metab. 2022 Jun 16;107(7):e2882-e2895. doi: 10.1210/clinem/dgac178.
- Ferriere A, Cortet C, Chanson P, Delemer B, Caron P, Chabre O, Reznik Y, Bertherat J, Rohmer V, Briet C, Raingeard I, Castinetti F, Beckers A, Vroonen L, Maiter D, Cephise-Velayoudom FL, Nunes ML, Haissaguerre M, Tabarin A. Cabergoline for Cushing's disease: a large retrospective multicenter study. Eur J Endocrinol. 2017 Mar;176(3):305-314. doi: 10.1530/EJE-16-0662. Epub 2016 Dec 22.
- Giustina A, Uygur MM, Frara S, Barkan A, Biermasz NR, Chanson P, Freda P, Gadelha M, Haberbosch L, Kaiser UB, Lamberts S, Laws E, Nachtigall LB, Popovic V, Schilbach K, Lely AJV, Wass JAH, Melmed S, Casanueva FF. Medical management pathways for Cushing's disease in pituitary tumors centers of excellence (PTCOEs). Pituitary. 2025 Jan 29;28(1):23. doi: 10.1007/s11102-024-01485-x.
- Vilar L, Naves LA, Machado MC, Bronstein MD. Medical combination therapies in Cushing's disease. Pituitary. 2015 Apr;18(2):253-62. doi: 10.1007/s11102-015-0641-x.
Studie record data
Bestudeer belangrijke data
Studie start (Werkelijk)
Primaire voltooiing (Geschat)
Studie voltooiing (Geschat)
Studieregistratiedata
Eerst ingediend
Eerst ingediend dat voldeed aan de QC-criteria
Eerst geplaatst (Werkelijk)
Updates van studierecords
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Laatste update ingediend die voldeed aan QC-criteria
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Meer informatie
Termen gerelateerd aan deze studie
Trefwoorden
Aanvullende relevante MeSH-voorwaarden
- Urogenitale ziekten
- Endocriene systeemziekten
- Hersenziekten
- Ziekten van het centrale zenuwstelsel
- Ziekten van het zenuwstelsel
- Vaatziekten
- Hart-en vaatziekten
- Mannelijke urogenitale ziekten
- Vrouwelijke urogenitale ziekten
- Vrouwelijke urogenitale ziekten en zwangerschapscomplicaties
- Metabole ziekten
- Gonadale aandoeningen
- Aangeboren afwijkingen
- Water-elektrolyt-onbalans
- Bijnierziekten
- Stoornissen van seksuele ontwikkeling
- Urogenitale afwijkingen
- Hypothalamische ziekten
- Hyperpituïtarisme
- Hypofyse Ziekten
- 46, XX Aandoeningen van seksuele ontwikkeling
- Adrenogenitaal syndroom
- Aangeboren, erfelijke en neonatale ziekten en afwijkingen
- Voedings- en stofwisselingsziekten
- Hypertensie
- Hypofyse ACTH Hypersecretie
- Bijnierinsufficiëntie
- Hyperandrogenisme
- Hypokaliëmie
- Heterocyclische verbindingen
- Heterocyclische verbindingen, gefuseerd ring
- Alkaloïden
- Heterocyclische verbindingen, 4 of meer ringen
- Ergot alkaloïden
- Ergolines
- Cabergoline
- Osilodrostat
Andere studie-ID-nummers
- 05/13/26
Plan Individuele Deelnemersgegevens (IPD)
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IPD-tijdsbestek voor delen
IPD delen Ondersteunend informatietype
- LEERPROTOCOOL
- SAP
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