Advances in the Treatment of Relapsed and Refractory Multiple Myeloma: Novel Agents, Immunotherapies and Beyond: 2nd Edition

A special issue of Cancers (ISSN 2072-6694). This special issue belongs to the section "Cancer Immunology and Immunotherapy".

Deadline for manuscript submissions: 15 September 2025 | Viewed by 315

Special Issue Editors


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Guest Editor
Department of Internal Medicine II, University Hospital Krems, Karl Landsteiner University of Health Sciences, Krems an der Donau, Austria
Interests: multiple myeloma; breast cancer; signal transduction; tumor microenvironment; angiogenesis; bone disease; targeted therapy; apoptosis
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Guest Editor
Service d’Hematologie et Therapie Cellulaire, and Inserm CIC U1402, 86000 Poitiers, France
Interests: myeloma; drug development; treatment sequences; immunology
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Despite the challenges and odds imposed by the COVID-19 pandemic, therapeutic progress continues to be made in multiple myeloma (MM). New approvals in 2020 include the CD38 monoclonal antibody (mAb) isatuximab in combination with pomalidomide and dexamethasone; the combination of daratumumab with carfilzomib and dexamethasone; and the antibody drug conjugate (ADC) belantamab-mafodotin, for the treatment of relapsed/refractory (RR)MM; and s.c. daratumumab for all lines of therapy.

The combinatorial use of IMiDs, proteasome inhibitors, and monoclonal antibodies (mAbs), cornerstones of current MM therapy, has revolutionized MM treatment strategies and significantly improved patient survival. Nevertheless, almost all MM patients who have received initial therapy eventually relapse, with responses becoming progressively shorter with each line of therapy. Continuous clinical and basic research to identify novel therapeutic targets, optimal drug combinations and their timing dependent on disease, prior treatment and patient characteristics in a cost-effective and safe manner are therefore needed.

In this issue, eminent experts in the field of MM will summarize the most recent therapeutic developments, and offer evidence-based recommendations for combinatorial treatment approaches in RRMM patients. Among other topics, current strategies to treat MM patients refractory to lenalidomide, PIs, and/or mAbs in early or late relapse; and high-risk patients will be discussed. Moreover, promising biomarkers for drug resistance, therapy response, and tolerability using gene expression and proteomic profiling, as well as FACS analysis will be summarized. In addition, authors will present data on agents whose approval is expected during the next months; and on the impact of the “next-generation” of immunotherapies, chimeric antigen receptor T cells (CAR T cells), bispecific T cell engagers (BiTEs) and ADCs, as well as vaccines, in particular.  

Prof. Dr. Klaus Podar
Prof. Dr. Xavier Leleu
Guest Editors

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Keywords

  • myeloma relapse setting
  • drug development
  • treatment sequences
  • immunotherapy

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Published Papers (1 paper)

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Research

11 pages, 247 KiB  
Article
Adherence to Multidisciplinary Tumor Board Recommendations in Patients with Multiple Myeloma
by Valérie Gennheimer, Dilara Akhoundova, Michèle Hoffmann, Barbara Jeker, Yara Banz, Ulrike Bacher and Thomas Pabst
Cancers 2025, 17(8), 1297; https://doi.org/10.3390/cancers17081297 - 11 Apr 2025
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Abstract
Background: Patient management following a multidisciplinary tumor board (MTB) recommendation has become standard of care in oncology and aims to ensure optimization and personalization of patient care. To assess the impact of MTB recommendations in clinical practice, adherence to the recommended procedures needs [...] Read more.
Background: Patient management following a multidisciplinary tumor board (MTB) recommendation has become standard of care in oncology and aims to ensure optimization and personalization of patient care. To assess the impact of MTB recommendations in clinical practice, adherence to the recommended procedures needs to be evaluated. Within this retrospective case series, we examined adherence rates to recommendations formulated at multidisciplinary myeloma tumor boards (MMTB) held at our institution. Specifically, we analyzed how often recommendations involving diagnostic procedures, therapies, and enrollment into clinical trials recommended by the MMTB were implemented. In addition, factors leading to non-adherence were evaluated. Methods: We reviewed all consecutive patient cases discussed at MMTBs held at the University Hospital of Bern, Switzerland, between 1 January and 31 December 2023. Adherence was assessed by systematically comparing all available clinical records with the recommendations formulated at the MMTBs. Results: In total, 218 patients were included in the study. Of all MMTB recommendations, 86% (n = 251) of all MMTB recommendations were followed. Of these, 84% (n = 244) were followed with complete adherence and 2% (n = 7) incompletely. All cases of non-implementation of MMTB recommendations concerning diagnostics or therapy were clinically justified. The main reason for non-adherence was patient decision. Other reasons included lack of cost coverage and relevant changes in the clinical scenario, including patient’s death. In total, 36% (n = 104) of MMTB recommendations included clinical trial enrollment. However, study enrollment occurred only in 32% (n = 33) of the 104 cases. In 41% (n = 29) of the cases, justification for non-enrollment was documented in the clinical records. The most frequent reasons were patient decision, unmet inclusion criteria, delays in recruitment, lack of reimbursement, and changes in the clinical scenario. Conclusions: Our study showed an overall high level of adherence to MMTB recommendations for diagnostic procedures and therapy. However, only one third of recommendations for clinical trial enrollment were implemented, frequently due to patient decisions. Our results highlight the relevance of regular assessments of adherence rates to MTB recommendations and suggest that considering patient preferences in MTB discussions might minimize deviations. Full article
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