In-class transition (iCT) of proteasome inhibitor-based therapy: a community approach to multiple myeloma management

Abstract Long-term proteasome inhibitor (PI) treatment can improve multiple myeloma (MM) outcomes, but this can be difficult to achieve in clinical practice due to toxicity, comorbidities, and the burden of repeated parenteral administration. US MM-6 (NCT03173092) enrolled transplant-ineligible pati...

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Main Authors: Robert M. Rifkin, Saulius K. Girnius, Stephen J. Noga, Ruemu E. Birhiray, Suman Kambhampati, Sudhir Manda, Roger M. Lyons, Habte A. Yimer, Dasha Cherepanov, Eric Lloyd, Presley Whidden, Joshua Richter
Format: Article
Language:English
Published: Nature Publishing Group 2023-09-01
Series:Blood Cancer Journal
Online Access:https://doi.org/10.1038/s41408-023-00912-9
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author Robert M. Rifkin
Saulius K. Girnius
Stephen J. Noga
Ruemu E. Birhiray
Suman Kambhampati
Sudhir Manda
Roger M. Lyons
Habte A. Yimer
Dasha Cherepanov
Eric Lloyd
Presley Whidden
Joshua Richter
author_facet Robert M. Rifkin
Saulius K. Girnius
Stephen J. Noga
Ruemu E. Birhiray
Suman Kambhampati
Sudhir Manda
Roger M. Lyons
Habte A. Yimer
Dasha Cherepanov
Eric Lloyd
Presley Whidden
Joshua Richter
author_sort Robert M. Rifkin
collection DOAJ
description Abstract Long-term proteasome inhibitor (PI) treatment can improve multiple myeloma (MM) outcomes, but this can be difficult to achieve in clinical practice due to toxicity, comorbidities, and the burden of repeated parenteral administration. US MM-6 (NCT03173092) enrolled transplant-ineligible patients with newly diagnosed MM to receive all-oral ixazomib-lenalidomide-dexamethasone (IRd; ≤39 cycles or until progression or toxicity) following three cycles of bortezomib-based induction. Primary endpoint: 2-year progression-free survival (PFS). Key secondary/exploratory endpoints included overall response rate (ORR), overall survival (OS), safety, quality of life (QoL), treatment satisfaction, and actigraphy. At datacut, in the fully accrued cohort of 140 patients, median age was 73 years with 42% aged ≥75 and 61% deemed frail; 10% of patients were ongoing on treatment. After a median follow-up of 27 months, the 2-year PFS rate was 71% (95% confidence interval: 61–78). ORR increased from 62% at the end of induction to 80% following in-class transition (iCT) to IRd for a median of 11 months. The 2-year OS rate was 86%. The overall safety profile/actigraphy levels were consistent with previous reports; QoL/treatment satisfaction scores were stable with ongoing therapy. iCT to IRd may allow prolonged PI-based therapy with promising efficacy and a tolerable safety profile, while maintaining QoL.
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spelling doaj.art-4610ad81300445efb624a0ed2b1b1a3e2023-11-26T12:23:38ZengNature Publishing GroupBlood Cancer Journal2044-53852023-09-0113111210.1038/s41408-023-00912-9In-class transition (iCT) of proteasome inhibitor-based therapy: a community approach to multiple myeloma managementRobert M. Rifkin0Saulius K. Girnius1Stephen J. Noga2Ruemu E. Birhiray3Suman Kambhampati4Sudhir Manda5Roger M. Lyons6Habte A. Yimer7Dasha Cherepanov8Eric Lloyd9Presley Whidden10Joshua Richter11Rocky Mountain Cancer Centers/US Oncology ResearchTrihealth Cancer InstituteTakeda Pharmaceuticals U.S.A., Inc.Hematology Oncology of Indiana/American Oncology NetworkKansas City Veterans Affairs Medical CenterArizona Oncology/US Oncology ResearchTexas Oncology/US Oncology ResearchTexas Oncology/US Oncology ResearchTakeda Development Center Americas, Inc. (TDCA)Takeda Pharmaceuticals U.S.A., Inc.Takeda Pharmaceuticals U.S.A., Inc.Tisch Cancer Institute, Icahn School of Medicine at Mount SinaiAbstract Long-term proteasome inhibitor (PI) treatment can improve multiple myeloma (MM) outcomes, but this can be difficult to achieve in clinical practice due to toxicity, comorbidities, and the burden of repeated parenteral administration. US MM-6 (NCT03173092) enrolled transplant-ineligible patients with newly diagnosed MM to receive all-oral ixazomib-lenalidomide-dexamethasone (IRd; ≤39 cycles or until progression or toxicity) following three cycles of bortezomib-based induction. Primary endpoint: 2-year progression-free survival (PFS). Key secondary/exploratory endpoints included overall response rate (ORR), overall survival (OS), safety, quality of life (QoL), treatment satisfaction, and actigraphy. At datacut, in the fully accrued cohort of 140 patients, median age was 73 years with 42% aged ≥75 and 61% deemed frail; 10% of patients were ongoing on treatment. After a median follow-up of 27 months, the 2-year PFS rate was 71% (95% confidence interval: 61–78). ORR increased from 62% at the end of induction to 80% following in-class transition (iCT) to IRd for a median of 11 months. The 2-year OS rate was 86%. The overall safety profile/actigraphy levels were consistent with previous reports; QoL/treatment satisfaction scores were stable with ongoing therapy. iCT to IRd may allow prolonged PI-based therapy with promising efficacy and a tolerable safety profile, while maintaining QoL.https://doi.org/10.1038/s41408-023-00912-9
spellingShingle Robert M. Rifkin
Saulius K. Girnius
Stephen J. Noga
Ruemu E. Birhiray
Suman Kambhampati
Sudhir Manda
Roger M. Lyons
Habte A. Yimer
Dasha Cherepanov
Eric Lloyd
Presley Whidden
Joshua Richter
In-class transition (iCT) of proteasome inhibitor-based therapy: a community approach to multiple myeloma management
Blood Cancer Journal
title In-class transition (iCT) of proteasome inhibitor-based therapy: a community approach to multiple myeloma management
title_full In-class transition (iCT) of proteasome inhibitor-based therapy: a community approach to multiple myeloma management
title_fullStr In-class transition (iCT) of proteasome inhibitor-based therapy: a community approach to multiple myeloma management
title_full_unstemmed In-class transition (iCT) of proteasome inhibitor-based therapy: a community approach to multiple myeloma management
title_short In-class transition (iCT) of proteasome inhibitor-based therapy: a community approach to multiple myeloma management
title_sort in class transition ict of proteasome inhibitor based therapy a community approach to multiple myeloma management
url https://doi.org/10.1038/s41408-023-00912-9
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