Abstract
We report the 12-year follow-up of the prospective randomized EBMT LYM1 trial to determine whether the benefit of brief duration rituximab maintenance (RM) on progression-free survival (PFS) in patients with relapsed follicular lymphoma (FL) receiving an autologous stem cell transplant (ASCT) is sustained. One hundred and thirty-eight patients received RM with or without purging. The median follow-up after random assignment is 12 years (range 10–13) for the whole series. The 10-year PFS after ASCT is 47% (95% CI 40–54) with only 4 patients relapsing after 7.5 years. RM continues to significantly improve 10-year PFS after ASCT in comparison with NM [P = 0.002; HR 0.548 (95% CI 0.38–0.80)]. Ten-year non-relapse mortality (NRM) was not significantly different between treatment groups (7% overall). 10-year overall survival (OS) after ASCT was 75% (69–81) for the whole series, with no significant differences according to treatment sub-groups. 10-year OS for patients who progressed within 24 months (POD24T) was 60%, in comparison with 85% for patients without progression. Thus the benefit of rituximab maintenance after ASCT on relapse prevention is sustained at 12 years, suggesting that RM adds to ASCT-mediated disease eradication and may enhance the curative potential of ASCT.
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Acknowledgements
We thank all the investigators who contributed to this work and provided data updates for the purpose of this analysis. We thank all the EBMT trials office staff who have contributed to the conduct of this trial. We also thank the patients who agreed to participate in this study. This study was supported by an unrestricted educational grant from Roche Ltd. P.F. Abellan, N. Blesing, J.-H. Bourhis, G. Cook, P. Colombat, E. Conde, S.J.B. De Laguna, J. De La Serna, R. Evely, M. Fabbro, P. Fields, P. Forsyth, C. Fruchart, J. Gabarre, J. Gibson, R.V. Gilleece, MH. Gomez, U. Graeven, R. Gressin, P. Guardiola, T. Gumbleton, C. Hatton, T. Hawkins, W. Jung, H. Johnsen, Y. Kerneis, S. Killick, C. Kulecki, T. Lamy, A. Lange, P. Lederlin, X. Levaltier, S. Al-Ismail, T.A. Lopez, M.P.A. R. Lush, Lyttelton, M.P. Macheta, H. Maisonneuve, R. Marcus, A. McMillan, G. McQuaker, D. Milligan, T. Mills, C. Morris, M. Nickelsen, F. Offner, J.M. Ojanguren, M.J. Penarrubia, A.R. Pettit, H. Pflueger, H. Pullon, K.- A. Robertson. Rotermund, R. A. Saenz, S. Sadullah, G. Salles, J.M.R. Santasusana, G. Schlimok, J. Seale, C. Sebban, J. Sierra, J. G. Smith, Snowden, L.G. Steven, D. Stewart, J. Szer, J.E. Tighe, N. Trehet, G.E. Turner, I. Valji, D. Wright.
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Conception and design: RP, AHG, AB, PD, SM. Provision of study materials or patients: RP, RU, SPR, RJ, TH, BM, AM, JRJ, IBB, PG, CN, EK, AHG. Collection and assembly of data: RP, AB, SM. Statistical analysis: AB. Interpretation of data and results: RP, SM. Paper writing: RP, SM, Final approval of paper: RP, RU, AB, RJ, BM, AM, JAJ, IBB, PG, CUN, SPR, EK, NS, PD, AHG, SM. All authors had full access to the raw data in the study and the corresponding author had final responsibility for the decision to submit for publication. RP, MDD, DA, DB, PG, DQ and GS enrolled patients, performed the study and analyzed the data, read and approved the paper. JWS, SBS, AE and CG contributed to study design, implementation, analysis of results, and preparation of the paper.
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Pettengell, R., Uddin, R., Boumendil, A. et al. Durable benefit of rituximab maintenance post-autograft in patients with relapsed follicular lymphoma: 12-year follow-up of the EBMT lymphoma working party Lym1 trial. Bone Marrow Transplant 56, 1413–1421 (2021). https://doi.org/10.1038/s41409-020-01182-w
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DOI: https://doi.org/10.1038/s41409-020-01182-w
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