TY - JOUR
T1 - Cell-free DNA genomic and fragmentomic features for early outcome prediction in large B cell lymphoma
AU - Wang, Steven
AU - Mapar, Parisa
AU - Moldovan, Norbert
AU - van der Pol, Ymke
AU - Safrastyan, Aram
AU - van Werkhoven, Erik
AU - Tantyo, Normastuti Adhini
AU - Snieder, Bart
AU - Do Brito Valente, André F
AU - de Jonge, A Vera
AU - Dinmohamed, Avinash
AU - Drees, Esther E E
AU - Roemer, Margaretha G M
AU - Ylstra, Bauke
AU - Klerk, Clara P W
AU - Strobbe, Leonie
AU - Sandberg, Yorick
AU - Boersma, Rinske S
AU - Koene, Harry
AU - Pruijt, Hans
AU - de Heer, Koen
AU - van Rijn, Rozemarijn
AU - Bilgin, Yavuz M
AU - de Jongh, Eva
AU - Nijland, Marcel
AU - van der Poel, Marjolein
AU - Koster, Ad
AU - Nieuwenhuizen, Laurens
AU - Fijnheer, Rob
AU - Beeker, Aart
AU - Mous, Rogier
AU - Vergote, Vibeke K J
AU - Vermaat, Joost S P
AU - Pegtel, D Michiel
AU - Chamuleau, Martine E D
AU - Mouliere, Florent
N1 - Publisher Copyright:
© 2026 The Author(s). Published by Elsevier Inc. This is an open access article under the CC BY license. http://creativecommons.org/licenses/by/4.0/
PY - 2026/9/15
Y1 - 2026/9/15
N2 - Curative-intent immunochemotherapy fails in ∼30% of patients with large B cell lymphoma (LBCL), yet no validated molecular tool enables early identification of high-risk individuals to guide treatment intensification. Using shallow whole-genome sequencing (sWGS) of plasma cell-free DNA from 190 LBCL patients, we develop and validate the ACT score (aberrations, composition of fragments, and terminal motif analyses), a composite classifier integrating genomic and fragmentomic features from a single post-cycle-1 sample. ACT-positive patients have worse 2-year outcomes versus ACT-negative patients: time-to-progression 29% vs. 83% (hazard ratio [HR]: 4.4, 95% confidence interval [CI]: 1.9-10.0; p = 1.5 × 10-4) and overall survival 47% vs. 93% (HR: 8.7, 95% CI: 3.0-25.4; p = 1.8 × 10-6). The ACT score is independently prognostic of the International Prognostic Index, and their combination identifies the highest risk patients. Unlike mutation-based approaches, this assay requires neither tumor tissue, germline control, nor a baseline plasma sample. Built on open-source tools and sWGS, the ACT score offers a feasible, scalable strategy for early risk stratification in aggressive LBCL.
AB - Curative-intent immunochemotherapy fails in ∼30% of patients with large B cell lymphoma (LBCL), yet no validated molecular tool enables early identification of high-risk individuals to guide treatment intensification. Using shallow whole-genome sequencing (sWGS) of plasma cell-free DNA from 190 LBCL patients, we develop and validate the ACT score (aberrations, composition of fragments, and terminal motif analyses), a composite classifier integrating genomic and fragmentomic features from a single post-cycle-1 sample. ACT-positive patients have worse 2-year outcomes versus ACT-negative patients: time-to-progression 29% vs. 83% (hazard ratio [HR]: 4.4, 95% confidence interval [CI]: 1.9-10.0; p = 1.5 × 10-4) and overall survival 47% vs. 93% (HR: 8.7, 95% CI: 3.0-25.4; p = 1.8 × 10-6). The ACT score is independently prognostic of the International Prognostic Index, and their combination identifies the highest risk patients. Unlike mutation-based approaches, this assay requires neither tumor tissue, germline control, nor a baseline plasma sample. Built on open-source tools and sWGS, the ACT score offers a feasible, scalable strategy for early risk stratification in aggressive LBCL.
U2 - 10.1016/j.xcrm.2026.103006
DO - 10.1016/j.xcrm.2026.103006
M3 - Article
C2 - 42636799
SN - 2666-3791
VL - 7
JO - Cell reports. Medicine
JF - Cell reports. Medicine
IS - 9
M1 - 103006
ER -