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Leukemia, Myeloid, AcuteNCT05774990

Study Protocol: Study on Incidence and Risk Factors of Mold Infections in Children During Leukemia Treatment

An observational study of Leukemia, Myeloid, Acute and Acute Lymphoblastic Leukemia, run by University of Southern Denmark at 1 site in Denmark.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The study aims to evaluate the occurrence, mortality, and risk factors for invasive mold infections (IMI) in children treated with chemotherapy for acute leukemia in Denmark. The study will be a retrospective nationwide survey study of all children who received first-line chemotherapy for acute leukemia from 2008 to… Read more about this study

Who is it for?
Ages Up to 17 years
How many people
621 participants
Where
1 siteDenmark
Study dates
1 Apr 2023to 26 Oct 2025
Phase
Observational
Are there results?
None posted in the registry

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 17 years
  • All sexes
  • No healthy volunteers
  • Child

Study population: Any patient (<18 years) who initiated first-line chemotherapy against primary ALL or AML at any of the four Danish pediatric oncology departments from January 1st, 2008, to December 31st, 2022.

Who may be able to join

  • Age <18 years at the time of inclusion
  • Received first-line treatment for ALL or AML
  • Treatment at a Danish tertiary pediatric oncology unit (Rigshospitalet, Aarhus University Hospital, Odense University Hospital, and Aalborg University Hospital)
  • Treatment initiation January 1st, 2008, to December 31st, 2022

Who cannot join

  • Not meeting inclusion criteria

Trial locations and contacts

1 site in 1 country.

Denmark1 site
  • Rasmus Møller Duus

    Odense, DK-5000

Other trials in Denmark

About this study

Official title: Incidence and Risk Factors for Invasive Mold Infections in Children During First-Line Chemotherapy for Primary Acute Leukemia: Protocol for a National Retrospective Cohort Study

The study aims to evaluate the occurrence, mortality, and risk factors for invasive mold infections (IMI) in children treated with chemotherapy for acute leukemia in Denmark. The study will be a retrospective nationwide survey study of all children who received first-line chemotherapy for acute leukemia from 2008 to 2022 in Danish pediatric oncology units. The study population includes 621 children under the age of 18. Data will be collected from medical records, hospital databases, and national databases. When the IMI subgroup has been identified, this will be compared to the leukemic group that did not develop IMI. Statistical analysis can then determine the occurrence, mortality rate, and possible IMI risk factors.

Read the detailed description

Chemotherapy can weaken children's immune system, making them vulnerable to infections, including invasive mold infections (IMI), caused mainly by Aspergillus spp. The at-risk population for IMI in children with acquired immunodeficiency is patients with prolonged granulocytopenia due to hematologic malignancies treated with chemotherapy or allogeneic hematopoietic stem cell transplantation (HSCT) recipients and children receiving long-term corticosteroid treatment. Incidences and mortality rates are often reported as high.

In a retrospective cohort study, we aim to obtain an epidemiological overview of IMI in children receiving first-line treatment for acute myelogenous leukemia (AML) and acute lymphoblastic leukemia (ALL) in Denmark from 2008 to 2022 and identify possible risk factors, including treatment-related adverse effects.

Objectives

  1. To determine and compare the incidence of IMI in childhood AML and ALL during first-line chemotherapy in Denmark.
  2. To determine and compare the mortality of IMI in childhood AML and ALL during first-line chemotherapy in Denmark.
  3. To explore risk factors for IMI in childhood AML and ALL during first-line chemotherapy in Denmark.
Keywords
leukemia, childhood, myeloid, lymphoblastic, pediatric, invasive, mold, aspergillus
Medical subject headings
Leukemia, Myeloid, Acute, Precursor Cell Lymphoblastic Leukemia-Lymphoma, Leukemia

What is being measured

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

  1. Incidence of invasive mold infection in childhood AML and ALL in Denmark

    The number of subjects in the cohort infected with an invasive mold during leukemia treatment period as defined by the European Organization for Research and Treatment of Cancer Mycoses study group (EORTC/MSG) criteria

    Measured: Up to three years

  2. Mortality form invasive mold infection in childhood AML and ALL in Denmark.

    The number of subjects in the cohort dying from an invasive mold infection during their leukemia treatment period

    Measured: Up to three years

Timeline

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

  1. First posted20 Mar 2023
  2. Study start1 Apr 2023
  3. Primary completion26 Oct 2025
  4. Study completion26 Oct 2025

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
Retrospective
Enrolment
621 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05774990
Sponsor's protocol ID
22/15850
Status last verified
May 2026
First submitted
7 Mar 2023
Last updated
14 May 2026
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Yes: All individual participant data that underlie the results in a future publication will be made publicly available in an anonymized form.

Questions about this trial

What is this clinical trial studying?

An observational study of Leukemia, Myeloid, Acute and Acute Lymphoblastic Leukemia, run by University of Southern Denmark at 1 site in Denmark.

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 4 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: finished, as of the sponsor's last update on 14 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 1 site in Denmark. 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?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Incidence of invasive mold infection in childhood AML and ALL in Denmark (time frame: Up to three years). The study lists 2 primary outcomes in all. 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 14 May 2026.

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