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ACUTE MYELOID LEUKEMIA

Gilteritinib activity in refractory or relapsed FLT3-mutated acute myeloid leukemia patients previously treated by intensive chemotherapy and midostaurin: a study from the French AML Intergroup ALFA/FILO

Abstract

The real-world efficacy and safety of gilteritinib was assessed in an ambispective study that included 167 R/R FLT3-mutated AML patients. Among them, 140 received gilteritinib as single agent (cohort B), including 67 previously treated by intensive chemotherapy and midostaurin (cohort C). The main differences in patient characteristics in this study compared to the ADMIRAL trial were ECOG ≥ 2 (83.6% vs. 16.6%), FLT3-TKD mutation (21.0% vs. 8.5%), primary induction failure (15.0% vs. 40.0%) and line of treatment (beyond 2nd in 37.1% vs. 0.0%). The rates of composite complete remission, excluding those that occurred after hematopoietic stem cell transplantation (HSCT), were similar at respectively 25.4% and 27.5% in cohorts B and C. Median overall survival (OS) for these two groups was also similar at respectively 6.4 and 7.8 months. Multivariate analyses for prognostic factors associated with OS identified female gender (HR 1.61), adverse cytogenetic risk (HR 2.52), and allogenic HSCT after gilteritinib (HR 0.13). Although these patients were more heavily pretreated, these real-world data reproduce the results of ADMIRAL and provide new insights into the course of patients previously treated by intensive chemotherapy and midostaurin and beyond the 2nd line of treatment who can benefit from treatment in an outpatient setting.

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Fig. 1: Overall survival curves.
Fig. 2: Kaplan–Meier survival curves.

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Data availability

Some de-identified data will be shared with other researchers upon reasonable request to the corresponding authors (pierre-yves.dumas@u-bordeaux.fr). The sharing will require a detailed proposal to the study investigators, and a data transfer agreement must be signed.

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Acknowledgements

We would like to thank Astellas for their financial support enabling e-CRF. Astellas was not involved in data collection, analysis, or in the writing of this article.

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Contributions

Conceptualization, P.Y.D.; Methodology, P.Y.D., E.B.; Patients care, P.Y.D., E.R., S.B., M.A.H., M.H., Y.D., C.B., C.P., J.L., C.O., A.B., F.P., P.P., T.M., M.U., J.F., P.T., T.C., E.J., C.H., E.T., A.V., S.H., M.L.C., M.C., S.C., I.V., M.W., S.C., G.G., R.G., H.D., E.G., K.L., A.M., A.S., A.P., H.D., C.R.; Collected the data, A.M., M.C.B.; Analyzed data, P.Y.D., E.B.; Writing—original draft, P.Y.D.; Revised the manuscript, C.R., J.L., P.P., M.H., C.O., R.G.; Review and editing, P.Y.D., E.B., C.R.; Funding acquisition, P.Y.D., A.M.

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Correspondence to Pierre-Yves Dumas.

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Competing interests

Pierre-Yves Dumas: Daiichi-Sankyo, Jazz Pharmaceutical, Astellas, Abbvie, Celgene, Janssen. Emmanuel Raffoux: Daiichi-Sankyo, Astellas, Abbvie, Celgene, Pfizer. Emilie Berard: no competing interest. Sarah Bertoli: Jazz Pharmaceuticals, Daiichi-Sankyo, Sanofi, Astellas and BMS. Marie-Anne Hospital: no competing interest. Maël Heiblig: Astellas, Pfizer, Abbvie, Jazz Pharmaceuticals, Servier. Yohann Desbrosses: Jazz Pharmaceuticals, Abbvie, Celgene, Novartis. Caroline Bonmati: no competing interest. Cécile Pautas: Abbvie, BMS. Juliette Lambert: Pfizer, Astellas, Abbvie. Corentin Orvain: Novartis. Anne Banos: no competing interest. Florence Pasquier: no competing interest. Pierre Peterlin: Daiichi-Sankyo, Jazz Pharmaceutical, Astellas, Abbvie, BMS. Tony Marchand: Jazz Pharmaceutical, Servier. Madalina Uzunov: no competing interest. Jamilé Frayfer: no competing interest. Pascal Turlure: Daiichi-Sankyo. Thomas Cluzeau: Astellas, Novartis and institution: Novartis, Astellas, Arog. Eric Jourdan: Novartis, Abbvie, BMS. Chantal Himberlin: no competing interest. Emmanuelle Tavernier: Abbvie, BMS. Alban Villate: no competing interest. Stephanie Haiat: no competing interest. Marie-Lorraine Chretien: no competing interest. Martin Carre: Astellas, BMS, Jazz pharmaceutical. Sylvain Chantepie: no competing interest. Ioana Vaida: no competing interest. Mathieu Wemeau: Abbvie, AOP Orphan, BMS, Gilead, Novartis. Safia Chebrek: no competing interest. Gaelle Guillerm: no competing interest. Romain Guièze: Abbvie, Janssen, Beigene, Astrazeneca, Roche, Amgen.. Houria Debarri: no competing interest. Eve Gehlkopf: no competing interest. Kamel Laribi: Outside this work, KL received Grants from Novartis, Takeda, Jansen, Abbvie, and personal fees from Novartis, Takeda, Abbvie, Iqone, Astra Zeneca, and Beigene.. Ambroise Marcais: no competing interest. Alberto Santagostino: no competing interest. Marie-Christine Béné: no competing interest. Ariane Mineur: no competing interest. Arnaud Pigneux: Grant/Research Support: Astellas, Roche; Speaker’s Bureau: Astellas, AbbVie, Gilead, Pfizer, Roche, Sanofi; Consultant: Jazz, AbbVie, Agios, BMS, Gilead, Novartis, Pfizer, Roche, Takeda. Hervé Dombret: Honoraria/consulting: Abbvie, Amgen, Astellas, Celgene-BMS, Daiichi Sankyo, Incyte,. Jazz Pharmaceuticals, Pfizer, Servier; research funding: Amgen, Astellas, Celgene-BMS, Incyte, Jazz Pharmaceuticals, Pfizer. Christian Récher: Research grants from AbbVie, Amgen, Novartis, BMS-Celgene, Jazz Pharmaceuticals, Agios, Chugai, MaaT Pharma, Astellas, Roche, Daiichi-Sankyo and Iqvia; an advisory role for AbbVie, Janssen, Jazz Pharmaceuticals, Novartis, Celgene, Otsuka, Astellas, Daiichi-Sankyo, Macrogenics, Pfizer. Roche, Servier and Takeda.

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Dumas, PY., Raffoux, E., Bérard, E. et al. Gilteritinib activity in refractory or relapsed FLT3-mutated acute myeloid leukemia patients previously treated by intensive chemotherapy and midostaurin: a study from the French AML Intergroup ALFA/FILO. Leukemia 37, 91–101 (2023). https://doi.org/10.1038/s41375-022-01742-7

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