Maintenance rituximab after autologous stem cell transplantation in patients with mantle cell lymphoma

High-dose therapy and autologous stem cell transplantation (ASCT) improves outcomes for patients with mantle cell lymphoma (MCL), but relapse ultimately occurs in most patients. Recently presented interim results from a phase III prospective trial suggest maintenance rituximab (MR) after ASCT for MC...

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Veröffentlicht in:Annals of oncology 2015-11, Vol.26 (11), p.2323-2328
Hauptverfasser: Graf, S.A., Stevenson, P.A., Holmberg, L.A., Till, B.G., Press, O.W., Chauncey, T.R., Smith, S.D., Philip, M., Orozco, J.J., Shustov, A.R., Green, D.J., Libby, E.N., Bensinger, W.I., Pagel, J.M., Maloney, D.G., Zhou, Y., Cassaday, R.D., Gopal, A.K.
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container_end_page 2328
container_issue 11
container_start_page 2323
container_title Annals of oncology
container_volume 26
creator Graf, S.A.
Stevenson, P.A.
Holmberg, L.A.
Till, B.G.
Press, O.W.
Chauncey, T.R.
Smith, S.D.
Philip, M.
Orozco, J.J.
Shustov, A.R.
Green, D.J.
Libby, E.N.
Bensinger, W.I.
Pagel, J.M.
Maloney, D.G.
Zhou, Y.
Cassaday, R.D.
Gopal, A.K.
description High-dose therapy and autologous stem cell transplantation (ASCT) improves outcomes for patients with mantle cell lymphoma (MCL), but relapse ultimately occurs in most patients. Recently presented interim results from a phase III prospective trial suggest maintenance rituximab (MR) after ASCT for MCL improves progression-free survival (PFS). The maturation of these data and any benefit of MR on overall survival (OS) remain to be defined. In this retrospective study, we examined a cohort of consecutive patients with MCL that underwent ASCT for MCL at our center and evaluated their outcomes according to whether they received MR after ASCT (n = 50) or did not (n = 107). MR was treated as a time-dependent covariate to account for variation in timing of its initiation. MR was associated with an improved PFS [hazard ratio (HR) 0.44; confidence interval (CI) (0.24–0.80), P = 0.007] and overall survival (OS; HR 0.46; CI 0.23–0.93, P = 0.03) following a multivariate adjustment for confounding factors with a median follow-up of ∼5 years. Grade 4 neutropenia was increased (34% versus 18%, P = 0.04) in the MR group, but no effect on the rate of mortality unrelated to relapse was observed. These data support that MR after ASCT for MCL confers a benefit in PFS and additionally suggest it may improve OS. General application of this strategy will require confirmation of benefit in prospective randomized trials.
doi_str_mv 10.1093/annonc/mdv364
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Recently presented interim results from a phase III prospective trial suggest maintenance rituximab (MR) after ASCT for MCL improves progression-free survival (PFS). The maturation of these data and any benefit of MR on overall survival (OS) remain to be defined. In this retrospective study, we examined a cohort of consecutive patients with MCL that underwent ASCT for MCL at our center and evaluated their outcomes according to whether they received MR after ASCT (n = 50) or did not (n = 107). MR was treated as a time-dependent covariate to account for variation in timing of its initiation. MR was associated with an improved PFS [hazard ratio (HR) 0.44; confidence interval (CI) (0.24–0.80), P = 0.007] and overall survival (OS; HR 0.46; CI 0.23–0.93, P = 0.03) following a multivariate adjustment for confounding factors with a median follow-up of ∼5 years. Grade 4 neutropenia was increased (34% versus 18%, P = 0.04) in the MR group, but no effect on the rate of mortality unrelated to relapse was observed. These data support that MR after ASCT for MCL confers a benefit in PFS and additionally suggest it may improve OS. General application of this strategy will require confirmation of benefit in prospective randomized trials.</description><identifier>ISSN: 0923-7534</identifier><identifier>EISSN: 1569-8041</identifier><identifier>DOI: 10.1093/annonc/mdv364</identifier><identifier>PMID: 26347113</identifier><language>eng</language><publisher>England: Elsevier Ltd</publisher><subject>Adult ; Aged ; Antineoplastic Agents - administration &amp; dosage ; autologous transplantation ; Cohort Studies ; Combined Modality Therapy - methods ; Combined Modality Therapy - trends ; Disease-Free Survival ; Female ; Follow-Up Studies ; Hematopoietic Stem Cell Transplantation - methods ; Hematopoietic Stem Cell Transplantation - trends ; Humans ; Lymphoma, Mantle-Cell - diagnosis ; Lymphoma, Mantle-Cell - therapy ; maintenance ; Maintenance Chemotherapy - methods ; Maintenance Chemotherapy - trends ; Male ; mantle lymphoma ; Middle Aged ; Original ; Retrospective Studies ; rituximab ; Rituximab - administration &amp; dosage ; Transplantation, Autologous - methods ; Transplantation, Autologous - trends</subject><ispartof>Annals of oncology, 2015-11, Vol.26 (11), p.2323-2328</ispartof><rights>2015 European Society for Medical Oncology</rights><rights>The Author 2015. 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Grade 4 neutropenia was increased (34% versus 18%, P = 0.04) in the MR group, but no effect on the rate of mortality unrelated to relapse was observed. These data support that MR after ASCT for MCL confers a benefit in PFS and additionally suggest it may improve OS. General application of this strategy will require confirmation of benefit in prospective randomized trials.</abstract><cop>England</cop><pub>Elsevier Ltd</pub><pmid>26347113</pmid><doi>10.1093/annonc/mdv364</doi><tpages>6</tpages><oa>free_for_read</oa></addata></record>
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subjects Adult
Aged
Antineoplastic Agents - administration & dosage
autologous transplantation
Cohort Studies
Combined Modality Therapy - methods
Combined Modality Therapy - trends
Disease-Free Survival
Female
Follow-Up Studies
Hematopoietic Stem Cell Transplantation - methods
Hematopoietic Stem Cell Transplantation - trends
Humans
Lymphoma, Mantle-Cell - diagnosis
Lymphoma, Mantle-Cell - therapy
maintenance
Maintenance Chemotherapy - methods
Maintenance Chemotherapy - trends
Male
mantle lymphoma
Middle Aged
Original
Retrospective Studies
rituximab
Rituximab - administration & dosage
Transplantation, Autologous - methods
Transplantation, Autologous - trends
title Maintenance rituximab after autologous stem cell transplantation in patients with mantle cell lymphoma
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