Clinical trial Recruiting at 34 sites Phase2; Phase3 Interventional Ages 1 Month to 18

Stem cell transplantation for children and adolescents with acute lymphoblastic leukaemia

Official title: Allogeneic Stem Cell Transplantation for Children and Adolescents With Acute Lymphoblastic Leukaemia

Run by St. Anna Kinderkrebsforschung · NCT01949129 · Data updated 2026-11-12

This study is testing if using chemotherapy instead of total body radiation before stem cell transplants can help children and teens with acute lymphoblastic leukaemia who are in remission, while also reducing side effects.

More Acute Lymphoblastic Leukaemia trials

Quick facts

PhasePhase2; Phase3
Study typeInterventional
Ages1 Month to 18 Years
SexAll
Enrollment1800 (estimated)
SponsorSt. Anna Kinderkrebsforschung
Academic / other
Drugs / interventionschemotherapy, fludarabine
Locations119 sites (Buenos Aires and 118 other locations)
StatusRecruiting
StartedApril 2013
Main results expectedJune 1, 2030
Study endsJune 1, 2030
Registry record updatedSeptember 4, 2026
Trial IDNCT01949129 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are children and adolescents aged 21 years or younger with acute lymphoblastic leukaemia in complete remission who require allogeneic HSCT.

Probably not a fit

Patients with non-Hodgkin lymphoma or those who do not meet the inclusion criteria 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 trial investigates the effectiveness of allogeneic stem cell transplantation (HSCT) in children and adolescents diagnosed with acute lymphoblastic leukaemia (ALL) who are in complete remission. The study aims to determine if a chemotherapy-based conditioning regimen can replace total body irradiation (TBI) before HSCT, potentially reducing late complications associated with TBI. It is a multinational, multicenter, controlled, prospective study that involves stratifying patients based on their individual transplantation modalities and donor availability. The trial seeks to gather data from a diverse patient population to improve treatment outcomes for those with high-risk ALL.

Why it matters

Potential benefit: If successful, this study could lead to improved treatment protocols for pediatric ALL, reducing the risk of late complications associated with traditional TBI.

How similar studies have gone: Other studies have shown promise in using chemotherapy-based conditioning regimens, but this specific approach in pediatric ALL is novel and has not been extensively tested.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

Patients with ALL (except for patients with B-ALL) who fulfil the following criteria:

* age at diagnosis ≤ 18 years. Age at HSCT ≤ 21 years
* indication for allogeneic HSCT
* complete remission (CR) before HSCT
* written consent of the parents (legal guardian) and, if necessary, the minor patient via "Informed Consent Form"
* no pregnancy
* no secondary malignancy
* no previous HSCT
* HSCT is performed in a study participating centre

Exclusion Criteria:

* patients who do not fulfil the inclusion criteria
* Non Hodgkin-Lymphoma
* the whole protocol or essential parts are declined either by patient himself/herself or the respective legal guardian
* no consent is given for saving and propagation of anonymous medical data for study reasons
* severe concomitant disease that does not allow treatment according to the protocol at the investigator's discretion (e.g. malformation syndromes, cardiac malformations, metabolic disorders)
* Karnofsky / Lansky score \< 50%
* subjects unwilling or unable to comply with the study procedures

Where it's running

  • Hospital de Pediatria "Juan P. Garrahan" Combate de Los Pozos N°1800 CABA
    Buenos Aires, Argentina
    Recruiting
  • Hospital Sor Maria Ludovica, Department Hematology Stem Cell Transplant Unit
    La Plata, Argentina
    Recruiting
  • Universitätsklinik für Kinder- und Jugendheilkunde, Abt. f. Hämato-Onkologie
    Graz, Austria
    Recruiting
  • Universitätsklinik für Kinder- und Jugendheilkunde
    Innsbruck, Austria
    Recruiting
  • St. Anna Children's Hospital, Vienna, Austria
    Vienna, Austria
    Recruiting
  • Hôpital Universitaire des Enfants Reine Fabiola (HUDERF)
    Brussels, Belgium
    Recruiting
Show 44 more locations
  • Cliniques Universitaires Saint-Luc (UCL) Hématologie et oncologie pédiatrique
    Brussels, Belgium
    Recruiting
  • University Hospital Gent Pediatrische hemato-oncologie
    Ghent, Belgium
    Recruiting
  • University Hospitals Leuven Kinderhemato-oncologie
    Leuven, Belgium
    Recruiting
  • Centre Hospitalier Universitaire de Liège Domaine Universitaire du Sart Tilman
    Liège, Belgium
    Recruiting
  • Hospital Dr Luis Calvo Mackenna
    Santiago, Chile
    Recruiting
  • Department of Pediatrics, UHC Zagreb
    Zagreb, Croatia
    Recruiting
  • Department of Pediatric Hematology and Oncology Teaching Hospital Motol, 2nd Medical School, Charles University
    Prague, Czechia
    Recruiting
  • Paediatric Stem Cell Transplant and Immune Deficiency, Dept. for children and adolescents 4072, Rigshospitalet
    Copenhagen, Denmark
    Recruiting
  • Saint Sophia Children's Hospital BMT Unit
    Athens, Greece
    Recruiting
  • National Institute of Haematology and Infectious Disease, Hospital of Southern Pest, Paediatric Bone Marrow Transplantation Unit
    Budapest, Hungary
    Recruiting
  • University of Malaya, Department of Paediatrics
    Kuala Lumpur, Malaysia
    Recruiting
  • Instituto Nacional de Peditria
    Mexico City, Mexico
    Recruiting
  • Princess Máxima Center for Pediatric Oncology
    Utrecht, Netherlands
    Recruiting
  • Oslo University Hospital Rikshospitalet
    Oslo, Norway
    Recruiting
  • King Abdullah specialists children hospital
    Riyadh, Saudi Arabia
    Recruiting
  • University Children's Hospital
    Bratislava, Slovakia
    Recruiting
  • University childrens' hospital, UMCL
    Ljubljana, Slovenia
    Recruiting
  • Hospital Santa Creu i Sant Pau
    Barcelona, Spain
    Recruiting
  • Hospital Vall d'Hebron
    Barcelona, Spain
    Recruiting
  • Hospital Virgen de la Arrixaca
    Murcia, Spain
    Recruiting
  • Hospital Universitario Central de Asturias
    Oviedo, Spain
    Recruiting
  • Queen Silvia Children's Hospital, Department of Pediatric Oncology (Avdelnig 321-322)
    Gothenburg, Sweden
    Recruiting
  • Skane University Hospital, Dept. of Pediatrics, Section for Hematology and Oncology
    Lund, Sweden
    Recruiting
  • Karolinska University Hospital, Department of Pediatrics
    Stockholm, Sweden
    Recruiting
  • University Children's Hospital, Dept. of Women's & Children's Health Section for Pediatrics
    Uppsala, Sweden
    Recruiting
  • Universitäts-Kinderspital beider Basel (UKBB)
    Basel, Switzerland
    Recruiting
  • HUG Hôpitaux Universitaire de Genève
    Geneva, Switzerland
    Recruiting
  • Universitäts-Kinderspital Zurich
    Zurich, Switzerland
    Recruiting
  • Children's Cancer Centre The Royal Children's Hospital
    Melbourne, Australia
    Active not recruiting
  • Princess Margaret Hospital for Children
    Perth, Australia
    Active not recruiting
  • Sydney Children's Hospital
    Randwick, Australia
    Active not recruiting
  • Lady Cilento Children's Hospital
    South Brisbane, Australia
    Active not recruiting
  • The Children's Hospital at Westmead Oncology Unit
    Sydney, Australia
    Active not recruiting
  • Belarusian Research Center for Pediatric Oncology, Hematology and Immunology
    Minsk, Belarus
    Active not recruiting
  • Alberta Children's Hospital Division of Pediatric Oncology
    Calgary, Canada
    Active not recruiting
  • Montreal Children's Hospital
    Montral, Canada
    Active not recruiting
  • CHU Sainte-Justine Hematology-Oncology Division
    Montreal, Canada
    Active not recruiting
  • Hospital for Sick Children University of Toronto Division of Haematology/Oncology
    Toronto, Canada
    Completed
  • BC Children's Hospital
    Vancouver, Canada
    Completed
  • CancerCare Manitoba/University of Manitoba
    Winnipeg, Canada
    Withdrawn
  • Division of Hematology-Oncology and Stem Cell Transplantation, Hospital for Children and Adolescents, Univ. of Helsinki
    Helsinki, Finland
    Completed
  • CHU Bordeaux
    Bordeaux, France
    Active not recruiting
  • CHU Clermont-Ferrand
    Clermont-Ferrand, France
    Active not recruiting
  • CHU Grenoble - Clinique Universitaire de Pédiatrie, Hôpital Couple Enfant
    Grenoble, France
    Active not recruiting

+69 more sites. See ClinicalTrials.gov for the full list.

Study contacts

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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.