Overview
Sponsor-declared trial summary
ACTH-dependent hypercortisolism
The main objective is to compare the proportion of patients with ACTH-dependent hypercortisolism in whom Cushing's disease (CD) is correctly differentiated from ectopic Cushing's syndrome (CS) using [18F]FET PET-MRI compared to IPSS.
Key facts
- Sponsor
- Erasmus Universitair Medisch Centrum Rotterdam (Erasmus MC)
- Participant type
- Patients
- Age range
- 18-64 years, 65+ years
- Gender
- Male and Female
- Therapeutic area
- Diseases [C] - Hormonal diseases [C19]
- Decision date (initial)
- 2025-05-15
- Transition trial
- No
- Low-intervention
- No
- Rare-disease indication
- Yes
- Vulnerable population
- No
Trial design
CTIS Part I — objectives, methods, condition coding
Main objective
Scope: Diagnosis
The main objective is to compare the proportion of patients with ACTH-dependent hypercortisolism in whom Cushing's disease (CD) is correctly differentiated from ectopic Cushing's syndrome (CS) using [18F]FET PET-MRI compared to IPSS.
Secondary objectives 1
- Secondary objectives include the analysis of the diagnostic accuracy of [18F]FET-PET-MRI, IPSS and structural MRI for the exact localisation of small functional PitNETs in patients with CD, the assessment of postoperative CD outcomes, and the evaluation of copeptin as a diagnostic marker in the evaluation of CD.
Conditions and MedDRA coding
ACTH-dependent hypercortisolism
Eligibility criteria
Principal inclusion / exclusion criteria as submitted by sponsor
Inclusion criteria 1
- In order to be eligible to participate in this study, a subject must meet all of the following criteria: 1. Age ≥18 years 2. Biochemically confirmed ACTH-dependent hypercortisolism, defined as: Non-suppressed ACTH levels plus minimal 2 of the following: Overnight 1mg dexamethasone suppression test > 50 nmol/L; and/or Elevated late night salivary cortisol (min. 2/3 measurements); and/or Elevated 24-hours urinary free cortisol (min. 2 measurements) 3. Pituitary microadenoma (< 10mm) OR negative / inconclusive findings on standard MRI of the pituitary sella-region. 4. Indication for further evaluation with IPSS.
Exclusion criteria 1
- A potential subject who meets any of the following criteria will be excluded from participation in this study: 1. Non-ACTH dependent hypercortisolism; 2. Pituitary macroadenoma (≥ 10mm); 3. Suspicion of Pseudo-Cushing’s disease (e.g. due to alcohol use disorder, PCO’s, obesity, depression) according to standard work up / guidelines; 4. Use of glucocorticosteroids; 5. Impaired renal function, defined as eGFR (MDRD) <30ml/min/1,73 m2. An exception can be made in consultation with the treating physician; 6. Impaired Liver function; 7. Pregnancy/breastfeeding. For the latter, temporary discontinuation may be considered; 8. Known allergic reaction to therapeutic radiopharmaceuticals; 9. Inability to lie still in supine position for the duration of the PET-MRI scan; 10. • Other conditions that make it impossible to perform a PET-MRI scan, such as neurological disease, severe immobility, or unsuppressable claustrophobia.
Endpoints
Primary and secondary outcome measures (English text)
Primary endpoints 1
- The primary endpoint of this prospective evaluation is the difference in the proportion of patients with ACTH-dependent hypercortisolism in whom CD is correctly distinguished from ectopic CS using [18F]FET PET-MRI versus IPSS. [18F]FET PET-MRI will be compared for non-inferiority to the current standard IPSS.
Secondary endpoints 1
- Secondary endpoints include the sensitivity, specificity, positive and negative predictive value of the two techniques for the exact localization of ACTH-secreting PitNETs, based on post-operative neurosurgery and pathology reports as well as biochemical remission as reference standards. The area under the curve (AUC) for both techniques will be calculated from the receiver operating curve (ROC).
Investigational products
Investigational medicinal products (IMPs), comparators, placebo, auxiliary
Test 1
PRD10970240 · Product
- Active substance
- Fluoroethyltyrosine F-18
- Pharmaceutical form
- SOLUTION FOR INJECTION
- Route of administration
- INTRAVENOUS INJECTION
- Max daily dose
- 0.01 Sv sievert
- Max total dose
- 0.02 Sv sievert
- Max treatment duration
- 1 Day(s)
- Authorisation status
- Not Authorised
- ATC code
- V09IX10 — -
- MA holder
- UNIVERSITAETSKLINIKUM AACHEN AÖR
- Paediatric formulation
- No
- Orphan designation
- No
Sponsors and contacts
Sponsor organisations, regulatory contacts, third parties
Erasmus Universitair Medisch Centrum Rotterdam (Erasmus MC)
- Sponsor organisation
- Erasmus Universitair Medisch Centrum Rotterdam (Erasmus MC)
- Address
- Dr. Molewaterplein 40
- City
- Rotterdam
- Postcode
- 3015 GD
- Country
- Netherlands
Scientific contact point
- Organisation
- Erasmus Universitair Medisch Centrum Rotterdam (Erasmus MC)
- Contact name
- drs. R. van der Groef
Public contact point
- Organisation
- Erasmus Universitair Medisch Centrum Rotterdam (Erasmus MC)
- Contact name
- drs. R. van der Groef
Locations
1 EU/EEA country · 1 investigational sites
By country
| Country | MS status | Planned subjects | Sites |
|---|---|---|---|
| Netherlands | Authorised, recruitment pending | 30 | 1 |
| Rest of world
Switzerland
|
— | 13 | — |
Investigational sites
Results and documents
Annex IV summary of results, Annex V layperson summary, and all documents registered in CTIS for this trial
Documents 5 files
Public protocol annexes, IB summaries, regulatory submissions and post-authorisation documents registered in CTIS.
| Type | Title | Version |
|---|---|---|
| Protocol (for publication) | D1_Protocol 2024-518908-46-00 | 1.2 |
| Protocol (for publication) | D1_Protocol 2024-518908-46-00_TC | 1.2 |
| Recruitment arrangements (for publication) | K1_Recruitment arrangements | 1 |
| Subject information and informed consent form (for publication) | L1_SIS and ICF adults Dutch | 1.1 |
| Synopsis of the protocol (for publication) | D1_Protocol synopsis NL 2024-518908-46-00 | 1 |
Application history
2 submissions — initial application plus substantial / non-substantial modifications
| # | Type | Code | Submitted | Reference MS | Conclusion | Decision date |
|---|---|---|---|---|---|---|
| 1 | INITIAL | IN | 2025-01-25 | Netherlands | Acceptable with conditions 2025-05-15
|
2025-05-15 |
| 2 | SUBSTANTIAL MODIFICATION | SM-1 | 2025-06-04 | Netherlands | Acceptable 2025-07-23
|
2025-07-23 |