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Adrenal InsufficiencyLeukemiaCortNCT06861530

A Swiss Assessment of Hypothalamic-pituitary-adrenal Axis Suppression After Glucocorticoid Therapy for Leukemia and Lymphoblastic Lymphoma in Children

An observational study of Adrenal Insufficiency and Leukemia, Lymphoblastic, Acute, Pediatric, run by University Children's Hospital Basel at 2 sites in Switzerland.

Recruiting

Looking for participants now. Contact the study team or a site below to ask about taking part.

Sites and contacts
Official record
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Trial summary

Plain Language Summary: Background Glucocorticoids are stress hormones produced by the human body to control inflammation and regulate the immune system. Cortisol is the most well-known example of a glucocorticoid. These stress hormones are essential for the bodys healthy functioning. Read more about this study

Who is it for?
Ages Up to 18 years
How many people
40 participants
Where
2 sitesSwitzerland
Study dates
13 Aug 2024to 31 Dec 2026
Phase
Observational
Are there results?
Not yet: the study is under way

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages Up to 18 years
  • All sexes
  • No healthy volunteers
  • Child, Adult

Study population: Children aged 0-17 years who are: Diagnosed with ALL or LBL, and who are treated for at least 21 sequential days with glucocorticoids between the 01.07.2024 and the 30.06.2027 at the Childrens University Hospital of Basel or at the Childrens Hospital of Aarau

Who may be able to join

  • diagnosed with ALL or LBL
  • treated for at least 21 sequential days with glucocorticoids between the 01.07.2024 and the 30.06.2027 at the Childrens University Hospital of Basel or at the Childrens Hospital of Aarau
  • lnformed consent can be obtained from the patient\'s legal representatives (and the patient if at least 14 years of age) within week 2 of treatment with glucocorticoids

Who cannot join

  • Contraindication to the administration of intravenous synthetical ACTH (Synacthen®): extremely rare cases of known or suspected hypersensitivity to Synacthen®.

Trial locations and contacts

2 sites in 1 country. Contact the study team or a site near you to ask about taking part.

Switzerland2 sites, 2 recruiting
  • KSA

    Aarau

    Pascal Gächter, Physician, +41 704 22 80, pascal.gaechter@ukbb.ch

    Recruiting
  • UKBB

    Basel

    Pascal Gächter, Physician, +41 704 22 80, pascal.gaechter@ukbb.ch

    Recruiting

Other trials in Switzerland

About this study

Official title: A Swiss Prospective Multicenter Longitudinal Assessment of Hypothalamic-pituitary-adrenal Axis Suppression After Glucocorticoid Therapy for Leukemia and Lymphoblastic Lymphoma in Children: An Explorative Study

Plain Language Summary:

Background Glucocorticoids are stress hormones produced by the human body to control inflammation and regulate the immune system. Cortisol is the most well-known example of a glucocorticoid. These stress hormones are essential for the bodys healthy functioning.

Read more

To treat certain types of cancer, such as leukemia (blood cancer) in children, glucocorticoids are administered as medications in large quantities. This helps rapidly reduce the number of cancer cells in the body but also leads to the suppression of the body's natural glucocorticoid production, causing a deficiency.

This deficiency can be particularly dangerous for children with leukemia, as their immune defenses are already weakened by chemotherapy, leading to an increased risk of infections. Moreover, the signs of glucocorticoid deficiency in children with leukemia are often indistinguishable from the side effects of chemotherapy, making the deficiency harder to detect.

Objectives The aim of the study is to understand how frequently and for how long the body's natural glucocorticoid production is impaired in children treated for lymphoblastic leukemia and lymphoblastic lymphoma. Additionally, the goal is to identify which children are at particularly high risk.

By gaining a better understanding, this study may help to improve the detection and treatment of glucocorticoid deficiency in children with blood cancer.

Methods Regular low-dose ACTH tests will be conducted to assess the bodys natural glucocorticoid production during and after treatment. To avoid placing additional burden on children who are already heavily affected by the disease, these tests will only be performed when there is already a venous access established and the children are in the hospital for treatment reasons.

Keywords
Adrenal insufficiency, leukemia, leukaemia, childhood, pediatric, paediatric, glucocorticoid
Medical subject headings
Adrenal Insufficiency, Leukemia, Precursor Cell Lymphoblastic Leukemia-Lymphoma

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

Study groups in NCT06861530
Study groupRoleWhat they receive
Observed CohortObserved Cohort

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Occurence of Adrenal Insufficiency

    The primary outcome of this study is he measurement of the occurrence of HPA axis suppression. The outcome is binary (yes/no) and is considered yes, if a HPA axis suppression occurs at 1 test or more. HPA axis suppression is commonly defined as stimulated cortisol levels below 500nmol/l (below 18μg/dl) in the low-dose ACTH stimulation test, i.e. a measurement of cortisol 30 minutes and 60 minutes after the stimulation with 1 μg of synthetical ACTH (Synacthen®).

    For further analyses the following subgroups may be considered:

    • Morning cortisol according to current norm values from our laboratory: suppressed if below 66nmol/l (1-11 years) / below 100nmol/l (12-18 years)
    • Stimulated peak cortisol 300-500nmol/l = partially suppressed; below 300nmol/l = suppressed
    • Increment of cortisol after stimulation (basal to peak): below 100nmol/l = suppressed, 100-200nmol/l = partially suppressed, above 200nmol/l = normal

    Measured: Study enrollment until 3 months after the last dose of glucocorticoid treatment

Secondary outcomes (1)
  1. Duration of Adrenal Insufficiency

    The measurement of the duration of HPA axis suppression. The outcome is continuous (in weeks). lf there is no occurrence of HPA axis suppression (primary outcome, then this secondary outcome is 0 weeks.

    The cut-off values are specified under the primary outcome section.

    Measured: Study enrollment until 3 months after the last dose of glucocorticoid treatment

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted6 Mar 2025
  2. Study start13 Aug 2024
  3. Primary completion31 Dec 2026 (estimated)
  4. Study completion31 Dec 2026 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Prospective
Enrolment
40 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT06861530
Sponsor's protocol ID
2024-00736
Acronym
LeukemiaCort
Status last verified
May 2026
First submitted
24 Feb 2025
Last updated
8 May 2026
Results posted
No
Individual data sharing
No: not specified in approval by ethics comittee

Questions about this trial

What is this clinical trial studying?

An observational study of Adrenal Insufficiency and Leukemia, Lymphoblastic, Acute, Pediatric, run by University Children's Hospital Basel at 2 sites in Switzerland.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 3 inclusion and 1 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: looking for participants now, as of the sponsor's last update on 8 May 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 2 sites in Switzerland. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

Each site lists its own contact: choose the nearest one under Trial locations. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Occurence of Adrenal Insufficiency (time frame: Study enrollment until 3 months after the last dose of glucocorticoid treatment). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 8 May 2026.

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