Deferred autologous stem cell transplantation in systemic AL amyloidosis

• Verfasst von: Manwani, Richa [VerfasserIn]
• Verfasst von: Hegenbart, Ute [VerfasserIn]
• Verfasst von: Dittrich, Tobias [VerfasserIn]
• Verfasst von: Kimmich, Christoph [VerfasserIn]
• Verfasst von: Schönland, Stefan [VerfasserIn]
• Titel: Deferred autologous stem cell transplantation in systemic AL amyloidosis
• Verf.angabe: Richa Manwani, Ute Hegenbart, Shameem Mahmood, Sajitha Sachchithanantham, Charalampia Kyriakou, Kwee Yong, Rakesh Popat, Neil Rabin, Carol Whelan, Tobias Dittrich, Christoph Kimmich, Philip Hawkins, Stefan Schönland, Ashutosh Wechalekar
• E-Jahr: 2018
• Jahr: 05 November 2018
• Umfang: 7 S.
• Illustrationen: Illustrationen
• Fussnoten: Gesehen am 11.10.2019
• Titel Quelle: Enthalten in: Blood cancer journal
• Ort Quelle: London [u.a.] : Nature Publishing Group, 2011
• Jahr Quelle: 2018
• Band/Heft Quelle: 8(2018,11) Artikel-Nummer 101, 7 Seiten
• ISSN Quelle: 2044-5385
• DOI: doi:10.1038/s41408-018-0137-9
• Datenträger: Online-Ressource
• Sprache: eng
• K10plus-PPN: 1678770841

Abstract

High-dose melphalan with autologous stem cell transplantation (ASCT) can induce durable haematological and organ responses in systemic AL amyloidosis (AL). Stringent selection criteria have improved safety of ASCT in AL but most patients are transplant-ineligible. We report our experience of deferred ASCT in AL patients who were transplant-ineligible at presentation but had improvements in organ function after induction chemotherapy, enabling them to undergo ASCT. Twenty-two AL patients underwent deferred ASCT from 2011 to 2017. All had serial organ function and clonal response assessment. Organ involvement and responses were defined by amyloidosis consensus criteria. All patients were transplant-ineligible at presentation, predominantly due to advanced cardiac involvement. All received bortezomib-based therapy, with 100% haematologic response (86% complete response (CR)/very good partial response (VGPR)), enabling reversal of ASCT exclusion criteria. Patients underwent deferred ASCT for haematologic progression (45%) or consolidation (55%). There was no transplant-related mortality. Haematologic responses post-ASCT: CR 50%, VGPR 27%, PR 18%, non-response 5%. In all, 85.7% achieved cardiac responses. Median overall survival (OS) was not reached. Median progression-free survival (PFS) was 54 months. This selected cohort achieved excellent haematologic responses, organ responses, PFS and OS with deferred ASCT. If larger studies confirm these findings, this may widen the applicability of ASCT in AL.