Allogeneic Hematopoietic Stem Cell Transplantation for Elderly Acute Lymphoblastic Leukemia Patients: A Registry Study From the Société Francophone de Greffe de Moelle et Thérapie Cellulaire (SFGM-TC).

Fiche publication

Date publication

mai 2025

Journal

American journal of hematology

Auteurs

Membres identifiés du Cancéropôle Est :
Dr BILGER Karin , Pr RUBIO Marie Thérèse , Dr DAGUINDAU Etienne

Tous les auteurs :
Chalandon Y, Devillier R, Boumendil A, Nguyen S, Bulabois CE, Ceballos P, Brissot E, Rubio MT, Labussière-Wallet H, Maertens J, Chevallier P, Maillard N, Poiré X, Castilla-Llorente C, Beguin Y, Cornillon J, Maury S, Marchand T, Daguindau E, Bay JO, Turlure P, Joris M, Menard AL, Bilger K, Guillerm G, François S, Bazarbachi A, Chantepie S, Lewalle P, Marçais A, Loschi M, Benakli M, Chauvet P, Forcade E, Huynh A, Robin M, Masouridi-Levrat S

Lien Pubmed

https://www.ncbi.nlm.nih.gov/pubmed/40326583

Résumé

There are very limited data regarding the outcomes of elderly patients with acute lymphoblastic leukemia (ALL) who undergo allogeneic hematopoietic stem cell transplantation (alloHSCT). A total of 316 ALL patients aged ≥ 60 years who underwent alloHSCT between 2010 to 2022 were identified in the SFGM-TC registry. The primary objective was to evaluate progression-free survival (PFS), non-relapse mortality (NRM), relapse incidence (RI), and graft-versus-host disease (GvHD)-free relapse-free survival (GRFS), as well as their risk factors. The median age was 63.8 years (range 60-75.8), 49.8% of patients had Philadelphia-positive B-ALL (Ph + ALL), and 70.9% were in first complete remission (CR1) at transplantation. The donor was an unrelated donor in 52.1%, a matched related donor (MRD) in 26.3%, and a haplo-identical donor in 17.7%. Reduced-intensity conditioning (RIC) was administered to 64.6% of patients, while total body irradiation (TBI) was used in 35.8%. The 3-year overall survival (OS) was 46% (95% CI 40%-53%). The 3-year PFS, NRM, RI, and GRFS were 41% (95% CI 35%-48%), 23% (95% CI 18%-28%), 36% (95% CI 31%-42%), and 30% (95% CI 25%-37%), respectively. Multivariable analyses confirmed poorer OS and PFS in patients with advanced disease, with an HR of 1.79 (95% CI 1.22-2.64), p = 0.0032. Additionally, the ALL subtype significantly impacted outcomes, with an HR of 1.99 (95% CI 1.42-2.79) for non-Ph + ALL. This study suggests that alloHSCT is a viable option for elderly ALL patients, as age itself did not impact outcomes. However, advanced disease and non-Ph + ALL were associated with significantly worse survival.