Real-world treatment patterns for patients with newly diagnosed multiple myeloma in Alberta, Canada.

The purpose of this study is to describe the real-world multiple myeloma (MM) population in Alberta by examining patient/clinical characteristics and the treatment landscape. A retrospective, observational study was conducted using province-wide, administrative health data from Alberta, Canada evaluating newly diagnosed MM (NDMM) patients. Between 1 April 2011 and 31 March 2017, 1377 treated NDMM cases were identified. Of those, 328 (23.8%) received an autologous stem cell transplant (ASCT) within the first year of diagnosis. In the ASCT group, 189 advanced to second-line (57.6%), 103 (32.6%) to third-line and 97 (29.5%) had four or more lines of therapy. In non-ASCT patients, 553 (52.7%) advanced to second-line, 238 (22.7%) to third-line, and 154 (14.7%) had 4 or more lines of therapy. We observed a significant treatment attrition rate in NDMM. Therefore, the use of best therapy upfront and novel strategies aiming to decrease attrition rates in MM is encouraged.