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

Summary

The ALL SCTped 2012 FORUM is a multinational, multi-centre, controlled, prospective phase III study for the therapy and therapy optimisation for children and adolescents with ALL in complete morphological remission (CR, less than 5% bone marrow blasts, no blasts in cerebrospinal fluid, no other extramedullary leukemia), who have an indication for HSCT with a myeloablative conditioning regimen. The stratification of patients in first and following remissions according to the individual transplantation modalities rests upon an indication for allogeneic HSCT and the availability of a suitable donor within the individual transplantation groups.

Timeline

Start

2013-04

Primary completion

2030-06-01

Completion

2030-06-01

Publications

• Ben Hassine K, Gloor Y, Dupanloup I, Uppugunduri CRS, Mlakar V, Gonzales F, Gungor T, Ifversen M, Shaw PJ, Buechner J, Truong TH, Bittencourt H, Teague L, Toporski J, Sedlacek P, Poetschger U, Krajinovic M, Kalwak K, Balduzzi A, Algeri M, Bader P, Peters C, Dalle JH, Ansari M. Refining busulfan exposure enhances pediatric ALL HSCT outcomes: insights from the International FORUM study. Blood Adv. 2026 May 26;10(10):3719-3730. doi: 10.1182/bloodadvances.2025019142.
• Buechner J, Poetschger U, Bader P, Yesilipek A, Pichler H, Palma J, Staciuk R, Riha P, Krivan G, Ifversen M, Gungor T, Goussetis E, Kalwak K, Toporski J, Gabriel M, Renard M, Diaz-de-Heredia C, Matic T, Calkoen FG, Svec P, Meisel R, Balduzzi A, Locatelli F, Peters C, Dalle JH, Stein J. Outcomes of BCP-ALL with hypodiploidy or BCR::ABL1 fusion in children undergoing allogeneic HSCT: results from the FORUM study. Blood. 2026 Mar 19;147(12):1365-1379. doi: 10.1182/blood.2025030951.
• Greco R, Ruggeri A, McLornan DP, Snowden JA, Alexander T, Angelucci E, Averbuch D, Bazarbachi A, Hazenberg MD, Kalwak K, Kenyon M, Mekelenkamp H, Neven B, Pedrazzoli P, Peric Z, Risitano AM, Sanchez-Ortega I, Ciceri F, Sureda A. Indications for haematopoietic cell transplantation and CAR-T for haematological diseases, solid tumours and immune disorders: 2025 EBMT practice recommendations. Bone Marrow Transplant. 2025 Nov;60(11):1499-1525. doi: 10.1038/s41409-025-02701-3. Epub 2025 Sep 9.
• Balduzzi A, Glogova E, Peters C, Sedlacek P, Dalle JH, Locatelli F, Meisel R, Burkhardt B, Buechner J, Wachowiak J, Bierings M, Staciuk R, Graphakos S, Gungor T, Yesilipek A, Svec P, Palma J, Krivan G, Diaz-de-Heredia C, Limido F, Ansari M, Kalwak K, Bader P, Ifversen M. Impact of minimal residual disease on the outcome of hematopoietic stem cell transplantation for childhood acute lymphoblastic leukemia within the FORUM trial. Haematologica. 2026 Jan 1;111(1):122-134. doi: 10.3324/haematol.2025.287456. Epub 2025 Aug 7.
• Kalwak K, Moser LM, Potschger U, Bader P, Kleinschmidt K, Meisel R, Dalle JH, Yesilipek A, Balduzzi A, Krivan G, Goussetis E, Staciuk R, Sedlacek P, Pichler H, Svec P, Gabriel M, Gungor T, Bilic E, Buechner J, Renard M, Vettenranta K, Ifversen M, Diaz-de-Heredia C, Stein J, Toporski J, Bierings M, Peters C, Ansari M, Locatelli F. Comparable outcomes after busulfan- or treosulfan-based conditioning for allo-HSCT in children with ALL: results of FORUM. Blood Adv. 2025 Feb 25;9(4):741-751. doi: 10.1182/bloodadvances.2024014548.
• Bader P, Potschger U, Dalle JH, Moser LM, Balduzzi A, Ansari M, Buechner J, Gungor T, Ifversen M, Krivan G, Pichler H, Renard M, Staciuk R, Sedlacek P, Stein J, Heusel JR, Truong T, Wachowiak J, Yesilipek A, Locatelli F, Peters C. Low rate of nonrelapse mortality in under-4-year-olds with ALL given chemotherapeutic conditioning for HSCT: a phase 3 FORUM study. Blood Adv. 2024 Jan 23;8(2):416-428. doi: 10.1182/bloodadvances.2023010591.
• Gomez SM, Varela MA, Ruiz C, Sung L. Comparable Outcomes of Matched Sibling Donor and Matched Unrelated Donor Stem Cell Transplantation in Children With Acute Leukemia in Argentina. J Pediatr Hematol Oncol. 2021 Oct 1;43(7):e1020-e1024. doi: 10.1097/MPH.0000000000002174.
• Peters C, Dalle JH, Locatelli F, Poetschger U, Sedlacek P, Buechner J, Shaw PJ, Staciuk R, Ifversen M, Pichler H, Vettenranta K, Svec P, Aleinikova O, Stein J, Gungor T, Toporski J, Truong TH, Diaz-de-Heredia C, Bierings M, Ariffin H, Essa M, Burkhardt B, Schultz K, Meisel R, Lankester A, Ansari M, Schrappe M; IBFM Study Group;; von Stackelberg A; IntReALL Study Group; Balduzzi A; I-BFM SCT Study Group; Corbacioglu S; EBMT Paediatric Diseases Working Party; Bader P. Total Body Irradiation or Chemotherapy Conditioning in Childhood ALL: A Multinational, Randomized, Noninferiority Phase III Study. J Clin Oncol. 2021 Feb 1;39(4):295-307. doi: 10.1200/JCO.20.02529. Epub 2020 Dec 17.
• Tasian SK, Peters C. Targeted therapy or transplantation for paediatric ABL-class Ph-like acute lymphocytic leukaemia? Lancet Haematol. 2020 Dec;7(12):e858-e859. doi: 10.1016/S2352-3026(20)30369-0. No abstract available.
• Choong E, Uppugunduri CRS, Marino D, Kuntzinger M, Doffey-Lazeyras F, Lo Piccolo R, Chalandon Y, Peters C, Daali Y, Ansari M. Therapeutic Drug Monitoring of Busulfan for the Management of Pediatric Patients: Cross-Validation of Methods and Long-Term Performance. Ther Drug Monit. 2018 Feb;40(1):84-92. doi: 10.1097/FTD.0000000000000468.

Drugs

Indications