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CompletedNCT06659224Updated Jul 23, 2025

The Risk of Acute Myeloid Leukaemia in Patients With Ewing's Sarcoma

An observational study in Acute Myeloid Leukemia (AML) and Ewing Sarcoma, sponsored by asmaa salama ibrahim. Completed at 1 site in Egypt. Per ClinicalTrials.gov, last updated 2025-07-23.

Sponsored by asmaa salama ibrahim · Observational

Study type
Observational
Model
Cohort
Time perspective
Retrospective
Enrollment
2,631
Sex
All
01

Study summary

Ewing's sarcoma is an uncommon yet vital malignancy of bone. It demonstrates a predilection for the pediatric and young adult population. Chemotherapy is considered an important treatment modality for Ewing's sarcoma. However, the development of therapy-related leukemia, especially acute myeloid leukemia following treatment, is attributed to the use of substances such as alkylating agents and topoisomerase inhibitors which are genotoxic. There is a very few studies elaborating on the incidence rates of such complications. So, our aim is to quantify the risk of developing acute myeloid leukemia in Ewing sarcoma patients and provide an updated evidence to the literature.

02

Conditions studied

  • Acute Myeloid Leukemia (AML)
  • Ewing Sarcoma

Keywords

  • acute myeloid leukemia
  • Ewing sarcoma
  • SEER
03

In context

Leukemia, Myeloid, Acute

2,971 studies on the registry are indexed under Leukemia, Myeloid, Acute; 745 are open to participants now.

This study's enrollment of 2,631 is above the median of 120 across 317 observational studies indexed under Leukemia, Myeloid, Acute.

Browse Leukemia, Myeloid, Acute studies →

Lead sponsor

asmaa salama ibrahim is the lead sponsor of 5 studies on the registry; none are open to participants now.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
Child (0–17), Adult (18–64), Older adult (65+)
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Probability sample

Study population

Patients diagnosed with Ewing sarcoma between 2000 and 2021, followed up for more than 10 years after the initial diagnosis. Site record ICD-O-3/WHO 2008 restricted to bone and soft tissue; and histological type ICD-O-3 specified as Ewing sarcoma (9364)

Inclusion criteria

  • Patients diagnosed with Ewing sarcoma
  • Latency exclusion period of 6 months
  • Sequence 0 or 1

Exclusion criteria

Exclusion Criteria:

  • patients lacking age documentation or age reported only on death certificates or autopsies
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Study design

Observational model
Cohort
Time perspective
Retrospective
Enrollment
2,631 participants (actual)
Patient registry
No
06

What researchers measure

Primary outcomes

  1. The standardized incidence ratio and excess risk of developing acute myeloid leukemia in Ewing's sarcoma patients

    The surveillance, epidemiology and End Results (SEER) database was used to calculate the standardized incidence ratio (SIR) as Observed/Expected (O/E) and calculated the excess absolute risk for acute myeloid leukemia in Ewing's sarcoma patients.

    Time frame: from Jan, 2000 till Dec, 2021

Secondary outcomes

  1. The standardized incidence ratio and excess risk of second primary malignancies in Ewing's sarcoma patients across different racial groups

    Time frame: from Jan, 2000 till Dec, 2021

  2. The standardized incidence ratio and excess risk of second primary malignancies in Ewing's sarcoma patients between different stages

    Time frame: from Jan, 2000 till Dec, 2021

07

Study locations

1 site
  • Suez Canal University
    Ismailia, 41512, Egypt
08

References and documents

Individual participant data

Plan to share: Undecided

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jul 23, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT06659224
Lead sponsor
asmaa salama ibrahim
Responsible party
asmaa salama ibrahim (Resident physician of gastroenterology, Suez Canal University) — Sponsor-investigator
First posted
Oct 26, 2024
Start date
Jan 1, 2000
Primary completion
Dec 30, 2021
Completion
Dec 30, 2021
Last update
Jul 23, 2025

Study contacts

Asmaa Ellaithy, MD
principal investigator · Suez Canal University

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Jul 2025. You cannot join it, but the record below documents what was studied.

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