Treatment of Multiple Myeloma: ASCO–Ontario Health (Cancer Care Ontario) Living Guideline

L Lisa K. Hicks (St Michael's Hospital and University of Toronto, Toronto, ON, Canada) H Hans J. Messersmith (American Society of Clinical Oncology (ASCO), Alexandria, VA) S Samer Al Hadidi (1Myeloma, Waldenstrom’s, and Amyloidosis Program, Section of Hematologic Malignancies and Cellular Therapy, Simmons Comprehensive Cancer Center, The University of Texas Southwestern Medical Center, Dallas, TX) R Rahul Banerjee B Benjamin A. Derman (University of Chicago, Chicago, IL) S Shaji Kumar T Tanya M. Wildes (12Division of Oncology and Hematology, University of Nebraska Medical Center, Omaha, NE) S Susan Bal (University of Alabama at Birmingham, Birmingham, Alabama, United States) S Sita Bhella C Cynthia Chmielewski (Health Tree Foundation, Trenton, NJ) C Caitlin Costello (1Division of Blood and Marrow Transplantation, University of California San Diego, Department of Medicine, San Diego, United States) R Raetasha Dabney (Texas Oncology, Grapevine, TX) M Monique Hartley-Brown (3Dana-Farber Cancer Institute, Harvard Medical School, Department of Medical Oncology, Boston, United States) A Alan Langerak (City of Hope, Prescott, AZ) B Brea Lipe (10University of Rochester Medical Center, Rochester, United States) T Thomas Martin (16Department of Hematology, University of California at San Francisco, San Francisco, CA) A Arleigh McCurdy (2The Ottawa Hospital, Ottawa, Canada) H Hira Mian (Department of Oncology, McMaster University, Hamilton, ON, Canada) E Eloisa Riva (1British Hospital, Bone Marrow Transplant Unit, Montevideo, Uruguay) R Rahul Seth (1SUNY Upstate Medical University, Syracuse, United States) L Latha Subramanian (Anchorage Oncology Centre, Anchorage, AK) J Joseph Mikhael (2Translational Genomics Research Institute, City of Hope Cancer Center, Phoenix, United States)

Abstract

This guideline has been updated. This ASCO Living Guideline is reviewed on an eight-week cycle. Please see the online dynamic version for the latest updates. ASCO Guidelines provide recommendations with comprehensive review and analyses of the relevant literature for each recommendation, following the guideline development process as outlined in the ASCO Guidelines Methodology Manual . ASCO Guidelines follow the ASCO Conflict of Interest Policy for Clinical Practice Guidelines . Clinical Practice Guidelines and other guidance (“Guidance”) provided by ASCO is not a comprehensive or definitive guide to treatment options. It is intended for voluntary use by clinicians and should be used in conjunction with independent professional judgment. Guidance may not be applicable to all patients, interventions, diseases or stages of diseases. Guidance is based on review and analysis of relevant literature, and is not intended as a statement of the standard of care. ASCO does not endorse third-party drugs, devices, services, or therapies and assumes no responsibility for any harm arising from or related to the use of this information. See complete disclaimer in Appendix 1 and Appendix 2 (online only) for more . PURPOSE To provide updated guidance regarding the therapy for multiple myeloma. METHODS ASCO and Ontario Health (Cancer Care Ontario) convened a joint Expert Panel and conducted an updated systematic review of the literature. RESULTS The updated review identified a total of 161 relevant randomized trials. UPDATED RECOMMENDATIONS Daratumumab therapy may be offered to patients with high-risk smoldering myeloma. Quadruplet therapy with daratumumab or isatuximab, combined with bortezomib, lenalidomide, and dexamethasone, should be offered as initial therapy for transplant eligible patients. They should also be offered at least lenalidomide maintenance, with or without daratumumab, carfilzomib, and/or dexamethasone. Quadruplet therapy with daratumumab or isatuximab, combined with bortezomib, lenalidomide, and dexamethasone, should be offered as therapy for suitable transplant-ineligible patients. Patients with relapsed or refractory multiple myeloma should be offered triplet therapy or T-cell redirecting therapies according to a set of recommended principles. Additional information is available at www.asco.org/hematologic-malignancies-guidelines .

Article Details

Volume / Issue Vol. 44, Issue 10
Published April 01, 2026
Pages 914-941
ISSN 0732-183X
Publisher Lippincott Williams & Wilkins

Journal Info

Journal of Clinical Oncology

Lippincott Williams & Wilkins

ISSN: 0732-183X Health Sciences

Authors (22)

L

Lisa K. Hicks

St Michael's Hospital and University of Toronto, Toronto, ON, Canada

H

Hans J. Messersmith

American Society of Clinical Oncology (ASCO), Alexandria, VA

S

Samer Al Hadidi

1Myeloma, Waldenstrom’s, and Amyloidosis Program, Section of Hematologic Malignancies and Cellular Therapy, Simmons Comprehensive Cancer Center, The University of Texas Southwestern Medical Center, Dallas, TX

R

Rahul Banerjee

B

Benjamin A. Derman

University of Chicago, Chicago, IL

S

Shaji Kumar

T

Tanya M. Wildes

12Division of Oncology and Hematology, University of Nebraska Medical Center, Omaha, NE

S

Susan Bal

University of Alabama at Birmingham, Birmingham, Alabama, United States

S

Sita Bhella

C

Cynthia Chmielewski

Health Tree Foundation, Trenton, NJ

C

Caitlin Costello

1Division of Blood and Marrow Transplantation, University of California San Diego, Department of Medicine, San Diego, United States

R

Raetasha Dabney

Texas Oncology, Grapevine, TX

M

Monique Hartley-Brown

3Dana-Farber Cancer Institute, Harvard Medical School, Department of Medical Oncology, Boston, United States

A

Alan Langerak

City of Hope, Prescott, AZ

B

Brea Lipe

10University of Rochester Medical Center, Rochester, United States

T

Thomas Martin

16Department of Hematology, University of California at San Francisco, San Francisco, CA

A

Arleigh McCurdy

2The Ottawa Hospital, Ottawa, Canada

H

Hira Mian

Department of Oncology, McMaster University, Hamilton, ON, Canada

E

Eloisa Riva

1British Hospital, Bone Marrow Transplant Unit, Montevideo, Uruguay

R

Rahul Seth

1SUNY Upstate Medical University, Syracuse, United States

L

Latha Subramanian

Anchorage Oncology Centre, Anchorage, AK

J

Joseph Mikhael

2Translational Genomics Research Institute, City of Hope Cancer Center, Phoenix, United States