Although multiple myeloma (MM) remains incurable, the introduction of novel agents has improved clinical outcomes dramatically over the past 15 years. Response rates have risen from ∼30% with single agents to up to 90% with combination therapies. The immunomodulatory drugs (IMiDs) thalidomide and lenalidomide, and the proteasome inhibitor bortezomib, form the foundations for treatment of relapsed and/or refractory MM (RRMM). Newer agents, such as the IMiD pomalidomide, the histone deacetylase inhibitor panobinostat and the proteasome inhibitors carfilzomib and ixazomib, as well as the monoclonal antibodies daratumumab and elotuzumab, have further improved overall response rates in these patients. Importantly, increased response rates have been observed in heavily pretreated patients. The availability of highly effective and tolerable drugs may offer alternative treatment strategies to those who are unsuitable for treatment with thalidomide, lenalidomide or bortezomib. Improving tolerability of treatment regimens and lengthening progression‐free intervals has been shown to significantly improve health-related quality of life for patients living with RRMM.

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Keywords Health-related quality of life, IMiDs, Immunomodulatory agents, Outcomes, Proteasome inhibitors, Relapsed/refractory multiple myeloma, Treatment strategies
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Journal Critical Reviews in Oncology / Hematology
Sonneveld, P, De Wit, E. (Edwin), & Moreau, P. (2017). How have evolutions in strategies for the treatment of relapsed/refractory multiple myeloma translated into improved outcomes for patients?. Critical Reviews in Oncology / Hematology (Vol. 112, pp. 153–170). doi:10.1016/j.critrevonc.2017.02.007