Treatment Patterns and Outcomes of Patients with Double-Class Refractory or Triple-Class Refractory Multiple Myeloma: A Retrospective US Electronic Health Record Database Study

Introduction: Patients with relapsed/refractory multiple myeloma (RRMM) resistant to multiple drug classes remain a high unmet need population, despite advances in MM patient care. The objective of this study was to assess real-world treatment patterns and outcomes in patients with RRMM who had failed multiple prior lines of therapy (LOT) and were refractory to multiple drug classes to identify gaps in their treatment pathways.