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Review

The road to cure in multiple myeloma starts with smoldering disease

, MD & , MD
 

Abstract

Introduction: Smoldering multiple myeloma (SMM) is a heterogeneous clinical entity that defines patients in the spectrum of disease progression from monoclonal gammopathy of undetermined significance to multiple myeloma (MM). Current standard of care is observation until end organ damage occurs. In spite of this, the scientific community has begun to question whether the strategy of watchful waiting should be replaced with earlier therapeutic intervention with the ultimate goal of preventing clonal heterogeneity and end organ damage.

Areas covered: In this review, we challenge the concept of observation as the best option of therapy in SMM. We present current data on diagnosis, prognostic factors of disease progression and studies that have been conducted to date to determine whether earlier therapeutic interventions will lead to an improvement in overall survival of patients with MM.

Expert opinion: If the recommendations of treatment of SMM were to change, the scientific body of evidence would have to overcome four major hurdles: to demonstrate that early intervention leads to prolonged survival and delay in development of end organ damage, that it does not have long-term toxicities, that it is implemented in patients with a high-likelihood of developing myeloma and that it does not lead to the outgrowth of more resistant clones. Only well-designed clinical trials will determine whether cure can be achieved with earlier interventions.

Declaration of interest

This work was supported by NIH R01CA-181683-01 and the Leukemia and Lymphoma Society. IMG is on the advisory board of Celgene, Millennium, Onyx, BMS and Noxxon. The authors have no other relevant affiliations or financial involvement with any organization or entity with a financial interest in or financial conflict with the subject matter or materials discussed in the manuscript. This includes employment, consultancies, honoraria, stock ownership or options, expert testimony, grants or patents received or pending, or royalties.

Notes

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