The Efficacy of Therapy in Patients With Acute Myeloid Leukemia and Down Syndrome in Russia (AML-DS-2025)

November 17, 2025 updated by: Federal Research Institute of Pediatric Hematology, Oncology and Immunology

Prospective Non-randomized Multicenter Trial: the Efficacy of Therapy in Patients With Acute Myeloid Leukemia and Down Syndrome in Russia

This prospective non-randomized multicenter trial created based on protocol ML DS 2006 and aimed at standardization of current therapy approaches and creating a national network for diagnostic, treatment and monitoring of children (0-18 years) with AML and Down syndrome in Russia. Based on the results the investigators expect to increase long-term overall and event-free survival in children with AML and DS and reduce the immediate and remote toxicity of chemotherapy by reducing the dose load of chemotherapeutic drugs.

The study protocol therapy for all patients includes four chemotherapy blocks:

Course 1 AIE (cytarabine/idarubicin/etoposide) Course 2 AI (cytarabine/idarubicin) Course 3 HAD (high -dose cytarabine (1g)/daunorubicin) Course 4 HA (high-dose cytarabine) Safety to be monitored based on CTCAE v5.0

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

This prospective non-randomized multicenter trial created based on protocol ML DS 2006 and aimed at standardization of current therapy approaches and creating a national network for diagnostic, treatment and monitoring of children (0-18 years) with AML and Down syndrome in Russia. Based on the results the investigators expect to increase long-term overall and event-free survival in children with AML and DS and reduce the immediate and remote toxicity of chemotherapy by reducing the dose load of chemotherapeutic drugs.

Patients to be included: Age 0-18 years

  • Diagnosis of AML, MDS and presence of Down syndrome (constitutional trisomy 21 and mutation in the GATA1 gene)
  • Signed informed consent

Patients not be included:

  • Children with Down syndrome and acute lymphoblastic leukemia (ALL)
  • Severe comorbidities with contraindications to the treatment according to the protocol
  • Pre-treatment >14 days with intensive induction therapy
  • Refusal of all therapy or important elements of therapy

NB: Patients with Transient Abnormal Myelopoiesis (TAM) are eligible for enrollment but will be included in the analysis as a separate group.

Patients with M7 AML, trisomy 21 in the tumor clone (without the Down syndrome phenotype) and mutation in the GATA1 gene should be discussed individually with the protocol group to determine the treatment strategy, as patients with M7 AML and trisomy 21 in tumor clone (without the Down syndrome phenotype) are not included in current version of pediatric AML clinical recommendations.

If a patient meets the inclusion criteria, but cannot/should not receive treatment according to the protocol, he/she can be enrolled in the study as a patient under observation. The results of therapy of patients under observation will not be taken into account in the assessment of treatment efficacy.

The study protocol therapy for all patients includes four chemotherapy blocks:

Course 1 AIE (cytarabine/idarubicin/etoposide) Course 2 AI (cytarabine/idarubicin) Course 3 HAD (high-dose cytarabine (1g)/daunorubicin) Course 4 HA (high-dose cytarabine)/ Efficacy parameters include Response rate; event-free survival (EFS); relapse-free survival (RFS); overall survival (OS); treatment-related mortality, myelogram, MRD Safety to be monitored based on CTCAE v5.0 The AML-DS-2025 protocol does not include a maintenance therapy course in order to reduce toxicity and improve quality of life.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Estimated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
100

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 3

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Locations

  • Russia
      • Moscow, Russia
        • Recruiting
        • National medical research center of pediatric haematology, oncology and immulogy named after Dmytriy Rogachyov, Moscow, 117198
        • Contact:

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

  • Child
  • Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Age 0-18 years
  • Diagnosis of AML, MDS and presence of Down syndrome (constitutional trisomy 21 and mutation in the GATA1 gene)
  • Signed informed consent

Exclusion Criteria:

  • Children with Down syndrome and acute lymphoblastic leukemia (ALL)
  • Severe comorbidities with contraindications to the treatment according to the protocol
  • Pre-treatment >14 days with intensive induction therapy
  • Refusal of all therapy or important elements of therapy

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Other: 4 chemotherapy blocks: cytarabine/idarubicin/etoposide, cytarabine/idarubicin, high-dose cytarabine
Drug: 4 chemotherapy blocks: Course 1 AIE (cytarabine/idarubicin/etoposide), Course 2 AI (cytarabine/idarubicin), Course 3 HAD (high-dose cytarabine (1g)/daunorubicin), Course 4 HA (high-dose cytarabine).
4 chemotherapy blocks: Course 1 AIE (cytarabine/idarubicin/etoposide), Course 2 AI (cytarabine/idarubicin), Course 3 HAD (high-dose cytarabine (1g)/daunorubicin), Course 4 HA (high-dose cytarabine).

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
event-free survival
Time Frame: up to 2 years
Response rate; event-free survival (EFS)
up to 2 years
relapse-free survival (RFS)
Time Frame: up to 2 years
up to 2 years
overall survival (OS)
Time Frame: up to 2 years
up to 2 years
treatment-related mortality
Time Frame: up to 2 years
up to 2 years

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
CTCAE
Time Frame: up to 2 years
Number of adverse events by Common Terminology Criteria for Adverse Events (CTCAE) 5.0
up to 2 years

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Federal Research Institute of Pediatric Hematology, Oncology and Immunology

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
July 24, 2025

Primary Completion (Estimated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
July 24, 2030

Study Completion (Estimated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
December 30, 2032

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
November 14, 2025

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
November 14, 2025

First Posted (Estimated)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
November 18, 2025

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
November 20, 2025

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
November 17, 2025

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
September 1, 2025

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • NCHPOI- 2025-8

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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