Clinical trial Recruiting at 101 sites Phase 3 Interventional Ages 1 Day to 1 Year

Treatment for infants with specific types of leukemia

Official title: Interfant-21 International Collaborative Treatment Protocol for Infants Under One Year With KMT2A-rearranged Acute Lymphoblastic Leukemia or Mixed Phenotype Acute Leukemia.

Run by Princess Maxima Center for Pediatric Oncology · NCT05327894 · Data updated 2026-11-12

This study is testing a new treatment using blinatumomab for infants with specific types of leukemia to see if it can help them respond better to therapy.

Quick facts

PhasePhase 3
Study typeInterventional
Ages1 Day to 1 Year
SexAll
Enrollment160 (estimated)
SponsorPrincess Maxima Center for Pediatric Oncology
Academic / other
Drugs / interventionsblinatumomab, prednisone
Locations124 sites (Buenos Aires and 123 other locations)
StatusRecruiting
StartedDecember 15, 2022
Main results expectedSeptember 2027
Study endsSeptember 2030
Registry record updatedOctober 19, 2026
Trial IDNCT05327894 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are infants under one year old with newly diagnosed KMT2A-rearranged acute lymphoblastic leukemia or mixed phenotype acute leukemia.

Probably not a fit

Patients older than one year or those with KMT2A-germline leukemia or T-ALL will not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This treatment protocol involves administering blinatumomab to infants under one year old diagnosed with KMT2A-rearranged acute lymphoblastic leukemia or mixed phenotype acute leukemia. Eligible infants will receive one cycle of blinatumomab following induction therapy, with further treatment based on their response. Medium risk patients may receive additional cycles or be treated according to standard protocols, while high risk patients may qualify for stem cell transplantation if they achieve minimal residual disease negativity. The study aims to improve treatment outcomes for this vulnerable population.

Why it matters

Potential benefit: If successful, this treatment could significantly improve survival rates and outcomes for infants with aggressive forms of leukemia.

How similar studies have gone: Other studies have shown promise with blinatumomab in treating acute lymphoblastic leukemia, suggesting potential for success in this specific population.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

1. Patients with newly diagnosed B- precursor ALL or B-cell MPAL (single lineage) according to the WHO classification of tumours of haematopoietic and lymphoid tissues (revised 4th edition 2017), with KMT2A-rearrangement.
2. ≤ 365 days of age at the time of diagnosis of ALL.
3. Written informed consent of the parent(s) or other legally authorized guardian of the patient according to local law and regulations.

Exclusion criteria for blinatumomab:

1. KMT2A-wildtype patients.
2. Multilineage MPAL
3. T-ALL.
4. Age \> 365 days at the time of diagnosis.
5. Down syndrome.
6. Relapsed ALL.
7. Treatment with systemic corticosteroids (equivalent prednisone \>10 mg/m2/day) for more than one week and/or any chemotherapeutic agent in the 4-week interval prior to diagnosis. Patients who received corticosteroids by aerosol are eligible for the study.

If exclusion criteria for blinatumomab are met, the patient should be treated according to the protocol but without blinatumomab.

Where it's running

  • Australian and New Zealand Children's Haematology/Oncology Group
    Clayton, Victoria, Australia
    Recruiting
  • North Adelaide- Womens and Childrens Hospital
    Adelaide, Australia
    Recruiting
  • New Lambton Heights- John Hunter Children's Hospital
    New Lambton Heights, Australia
    Recruiting
  • Perth Children's Hospital
    Perth, Australia
    Recruiting
  • Sydney Childrens Hospital
    Sydney, Australia
    Recruiting
  • The Childrens Hospital at Westmead
    Westmead, Australia
    Recruiting
Show 44 more locations
  • Medical University Of Graz
    Graz, Austria
    Recruiting
  • Medical University Of Innsbruck
    Innsbruck, Austria
    Recruiting
  • Gemeinnutzige Salzburger Landes kliniken Betriebsgesellschaft mbH
    Salzburg, Austria
    Recruiting
  • St. Anna Children's Hospital
    Vienna, Austria
    Recruiting
  • Antwerp University Hospital
    Antwerp, Belgium
    Recruiting
  • Cliniques Universitaires Saint-Luc
    Brussels, Belgium
    Recruiting
  • Hôpital Universitaire des Enfants Reine Fabiola
    Brussels, Belgium
    Recruiting
  • Universitair Ziekenhuis Gent
    Ghent, Belgium
    Recruiting
  • UZ Leuven
    Leuven, Belgium
    Recruiting
  • CHC MontLegia
    Liège, Belgium
    Recruiting
  • University Hospital Brno
    Brno, Czechia
    Recruiting
  • Hospital Motol V Uvalu 841
    Prague, Czechia
    Recruiting
  • AUH Skejby
    Aarhus, Denmark
    Recruiting
  • Copenhagen-Rigshospitalet
    Copenhagen, Denmark
    Recruiting
  • Odense University Hospital
    Odense, Denmark
    Recruiting
  • New Children's Hospital
    Helsinki, Finland
    Recruiting
  • Kuopio University Hospital
    Kuopio, Finland
    Recruiting
  • Tampere University Hospital
    Tampere, Finland
    Recruiting
  • Turku University Hospital
    Turku, Finland
    Recruiting
  • CHU Amiens
    Amiens, France
    Recruiting
  • CHU Besancon
    Besançon, France
    Recruiting
  • CHU de Bordeaux
    Bordeaux, France
    Recruiting
  • CHRU de Lille
    Lille, France
    Recruiting
  • Institute of Hematology and Pediatric Oncology
    Lyon, France
    Recruiting
  • CHU Nancy
    Nancy, France
    Recruiting
  • CHU Nantes
    Nantes, France
    Recruiting
  • Hôpital Robert Debré, APHP
    Paris, France
    Recruiting
  • Trs
    Paris, France
    Recruiting
  • CHU Reims
    Reims, France
    Recruiting
  • CHU Rennes
    Rennes, France
    Recruiting
  • CHU Charles Nicolle
    Rouen, France
    Recruiting
  • CHRU Strasbourg Hautepierre
    Strasbourg, France
    Recruiting
  • Centre Hospitalier Universitaire de Toulouse
    Toulouse, France
    Recruiting
  • Universitätsklinikum Augsburg
    Augsburg, Germany
    Recruiting
  • Charite Universitaetsmedizin Berlin KöR
    Berlin, Germany
    Recruiting
  • Universitaetsklinikum Bonn AöR
    Bonn, Germany
    Recruiting
  • Klinikum Dortmund gGmbH
    Dortmund, Germany
    Recruiting
  • Universitaetsklinikum Carl Gustav Carus Dresden an der Technischen Universitaet Dresden AöR
    Dresden, Germany
    Recruiting
  • Universitaetsklinikum Erlangen AöR
    Erlangen, Germany
    Recruiting
  • Justus-Liebig-Universitaet Giessen
    Giessen, Germany
    Recruiting
  • Universitaetsklinikum Halle (Saale) AöR
    Halle, Germany
    Recruiting
  • University Medical Center Hamburg-Eppendorf
    Hamburg, Germany
    Recruiting
  • Medizinische Hochschule Hannover
    Hanover, Germany
    Recruiting
  • Universitätsklinikum Heidelberg AöR
    Heidelberg, Germany
    Recruiting

+74 more sites. See ClinicalTrials.gov for the full list.

Study contacts

Similar studies

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How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.