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Glucocorticoïd-ontwenningssyndroom bij patiënten met het behandelde Cushing-syndroom

15 september 2026 bijgewerkt door: Irina Bancos, Mayo Clinic

Voorspellers en effect van biofeedbackinterventie op de ernst van het glucocorticoïdontwenningssyndroom na curatieve chirurgie bij patiënten met het endogene syndroom van Cushing

Cushing syndrome (CS) is an endocrine disorder caused by chronic exposure to glucocorticoid (GC) excess. Endogenous CS has an estimated incidence of 0.2 to 5.0 cases per million per year and prevalence of 39 to 79 cases per million in various populations. CS usually affects young women, with a median age at diagnosis of 41.4 with a female-to-male ratio of 3:1. Following a curative surgery for CS, patients develop adrenal insufficiency and require GC replacement postoperatively until the hypothalamic-pituitary-adrenal (HPA) axis recovery occurs. Factors, such as age, gender, BMI, subtypes of CS, duration of symptoms, clinical and biochemical severity and postoperative GC dose have been reported to affect the HPA recovery in small retrospective studies. Glucocorticoid withdrawal syndrome (GWS) is a withdrawal reaction due to decrease in supraphysiological GC concentrations, which occurs after a successful surgery of CS. Glucocorticoid withdrawal syndrome (GWS) is under-recognized entity in patients undergoing curative surgery for endogenous Cushing syndrome.

In this study we aim to determine pre- and post-surgical predictors of the duration and severity of glucocorticoid withdrawal in patients undergoing a curative surgery for cortisol excess and assess the effect of MUSE intervention on GWS severity in patients undergoing curative surgery for CS as compared to standard of care.

Studie Overzicht

Toestand

Werving

Conditie

Interventie / Behandeling

Gedetailleerde beschrijving

Specific Aim 1: To determine pre- and post-surgical predictors of the duration and severity of glucocorticoid withdrawal in patients undergoing a curative surgery for cortisol excess Specific Aim 2: To characterize the timing and recovery of hypercortisolism-induced signs and symptoms, proximal myopathy and tissue accumulation of Advanced Glycation End products (AGEs) in patients after a curative surgery Specific Aim 3: To assess the effect of MUSE intervention on GWS severity in patients undergoing curative surgery for CS as compared to standard of care

  1. Selection of study subjects and medical records review. We will prospectively recruit adult patients with CS of any three subtypes (pituitary, adrenal or ectopic CS) and MACS undergoing a curative surgery, from the pituitary clinic. Investigator will discuss participation in the study and obtain an informed consent. We will review data for any potential risk factors through clinical interview and review of medical record. Data will include demographics, behavioral factors (smoking and alcohol consumption), past medical history (history of AI, psychiatric disorder and recent GC usage), GWS related symptoms and signs (anorexia, nausea, emesis, lethargy, somnolence, arthralgia, myalgia, fever, hypotension), and lab tests.

  2. Subjects: We will enroll 100 consecutive subjects in this study who will participate in this study for up to 2 years. Inclusion and exclusion criteria are as below. We plan to have 50 subjects participate in the intervention arm with MUSE in one year, without modifying other study procedures.

  3. Step-by-Step methods:

    • Patients will be identified by their clinician. Permission will be obtained from the patient in order for one of the investigators to explain the study and obtain informed written consent.
    • Baseline history, physical examination, and the necessary baseline tests will be performed based on standard of care and as considered necessary by the treating physician.
    • Medical record will be reviewed for demographic information, comorbidities, medical therapy, imaging information and biochemical testing results
    • We will use a scoring system to quantify biochemical severity, and to classify clinical abnormalities as mild, moderate and severe ( based on existent laboratory and clinical parameters).
    • At baseline, all patients will be asked to complete the Cushing QoL questionnaire, SF36 and AddiQol questionnaires (forms are attached in Document). Patients will discuss the intervention with MUSE with the study investigator. If they agree to participate in the intervention arm, they will be instructed on its use.
    • At follow up, patients will complete AddQoL survey (weekly in the first 3 months, every 4 weeks in the next 6 months, every 3 months in the next 12 months, and then every 6 months until the end of the study) and SF36 survey (every 3 months) until the end of the study. (In-person, through a paper survey or electronically using external REDCap server (user name and password protected)).
    • For patients in the intervention group, in addition to the above, at the time of enrollment, the study coordinator will help set up the MUSE application on to iPad or iPhone or Android phone (we will use generic login name and password without protected health information included). The coordinator will also go over a few helpful hints and discuss the homework log, which will need to be completed throughout the course of the study. After the surgery, patients are asked to complete the 3 minute 'focusing' exercise daily until 12 weeks after the surgery. During this time frame we will download the data from our end on a weekly basis. After 12 weeks, the frequency of the usage will be at the participant's discretion although ongoing usage is encouraged and data download should continue. In addition, we ask that patients bring iPad, iPhone or Android phone to each of the clinical visit for an app interrogation.
    • Patient will participate in the study until one of the following: 1) 2 years of follow up completed, 2) patient withdraws consent, 3) HPA axis recovery is achieved and patient weans off GC, 4) completion of the study by the principal investigator.

Studietype

Observationeel

Inschrijving (Geschat)

700

Contacten en locaties

In dit gedeelte vindt u de contactgegevens van degenen die het onderzoek uitvoeren en informatie over waar dit onderzoek wordt uitgevoerd.

Studiecontact

Studie Locaties

    • Minnesota
      • Rochester, Minnesota, Verenigde Staten, 55905
        • Werving
        • Mayo Clinic
        • Contact:
        • Hoofdonderzoeker:
          • Irina Bancos, MD

Deelname Criteria

Onderzoekers zoeken naar mensen die aan een bepaalde beschrijving voldoen, de zogenaamde geschiktheidscriteria. Enkele voorbeelden van deze criteria zijn iemands algemene gezondheidstoestand of eerdere behandelingen.

Geschiktheidscriteria

Leeftijden die in aanmerking komen voor studie

18 jaar en ouder (Volwassen, Oudere volwassene)

Accepteert gezonde vrijwilligers

Nee

Geslachten die in aanmerking komen voor studie

Allemaal

Bemonsteringsmethode

Niet-waarschijnlijkheidssteekproef

Studie Bevolking

Any male or female at least 18 years of age undergoing curative surgery for Cushing's Syndrome and MACS.

Beschrijving

Inclusion Criteria:

  1. age 18 and above,
  2. new diagnosis of CS of any of the three subtypes (pituitary, adrenal or ectopic CS), and MACS,
  3. planning for a curative surgery
  4. ability to provide informed consent.

Exclusion Criteria:

  1. systemic supraphysiological GC for any reason within 1 month of enrollment, for more than 2 weeks,
  2. inability to provide informed consent

Studie plan

Dit gedeelte bevat details van het studieplan, inclusief hoe de studie is opgezet en wat de studie meet.

Hoe is de studie opgezet?

Ontwerpdetails

  • Observatiemodellen: COHORT
  • Tijdsperspectieven: PROSPECTIVE

Cohorten en interventies

Groep / Cohort
Interventie / Behandeling
Standard of care CS

Patients undergoing curative surgery for any type of CS who will be followed through standard of care after surgery

MUSE intervention CS

Patients undergoing curative surgery for any type of CS who will be introduced to and provided MUSE for use after surgery

biofeedback through a headband

Wat meet het onderzoek?

Primaire uitkomstmaten

Uitkomstmaat
Maatregel Beschrijving
Tijdsspanne
Quality of life (SF36)
Tijdsspanne: periodic 0-24 months

Score 0-100

periodic 0-24 months

Secundaire uitkomstmaten

Uitkomstmaat
Maatregel Beschrijving
Tijdsspanne
HPA recovery
Tijdsspanne: 0-24 months

as measured by morning cortisol. Cortisol measurement will be performes every 6-12 weeks, 24h off glucocorticoid replacement therapy starting 4 weeks-8 weeks after surgery and until cortisol is 10 mcg/dl or above ( or HPA recovery is considered impossible by investigator)

0-24 months
Myopathy measurement
Tijdsspanne: 0-24 months

as measured by hand grip. Hand grip strength will be measured 3 times on left and right, and dominant hand grip strength will be considered as an average of 3 measurements.

0-24 months

Andere uitkomstmaten

Uitkomstmaat
Maatregel Beschrijving
Tijdsspanne
AGE
Tijdsspanne: 0-24 months

measurement of AGE

0-24 months

Medewerkers en onderzoekers

Hier vindt u mensen en organisaties die betrokken zijn bij dit onderzoek.

Sponsor

Onderzoekers

  • Hoofdonderzoeker: Irina Bancos, MD, MS, Mayo Clinic

Publicaties en nuttige links

De persoon die verantwoordelijk is voor het invoeren van informatie over het onderzoek stelt deze publicaties vrijwillig ter beschikking. Dit kan gaan over alles wat met het onderzoek te maken heeft.

Studie record data

Deze datums volgen de voortgang van het onderzoeksdossier en de samenvatting van de ingediende resultaten bij ClinicalTrials.gov. Studieverslagen en gerapporteerde resultaten worden beoordeeld door de National Library of Medicine (NLM) om er zeker van te zijn dat ze voldoen aan specifieke kwaliteitscontrolenormen voordat ze op de openbare website worden geplaatst.

Bestudeer belangrijke data

Studie start (Werkelijk)

25 juli 2019

Primaire voltooiing (Geschat)

1 december 2030

Studie voltooiing (Geschat)

1 december 2030

Studieregistratiedata

Eerst ingediend

10 april 2020

Eerst ingediend dat voldeed aan de QC-criteria

8 september 2020

Eerst geplaatst (Werkelijk)

10 september 2020

Updates van studierecords

Laatste update geplaatst (Werkelijk)

18 september 2026

Laatste update ingediend die voldeed aan QC-criteria

15 september 2026

Laatst geverifieerd

1 augustus 2026

Meer informatie

Termen gerelateerd aan deze studie

Andere studie-ID-nummers

  • 19-006003

Plan Individuele Deelnemersgegevens (IPD)

Bent u van plan om gegevens van individuele deelnemers (IPD) te delen?

NEE

Informatie over medicijnen en apparaten, studiedocumenten

Bestudeert een door de Amerikaanse FDA gereguleerd geneesmiddel

Nee

Bestudeert een door de Amerikaanse FDA gereguleerd apparaatproduct

Nee

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