- Serum LDH > 2 x ULN; c. Minimal residual disease (MRD) positive (defined as more than 1 malignant cell in 105 cells) measured by ClonoSIGHT NGS assay of a BMA sample) at the time of enrollment to this study; BMA sample collected at the time of multiple myeloma diagnosis, prior to induction therapy available for central MRD assessment by ClonoSIGHT NGS assay