Using Mass Spectrometry (EasyM) Detecting Minimal Residual Disease (MRD) in Multiple Myeloma

Clinical Utility of Mass Spectrometry (EasyM) for Detecting Minimal Residual Disease (MRD) by Monitoring Serum Monoclonal Immunoglobulins in Multiple Myeloma

The presence of minimal residual disease (MRD) is an important prognostic factor for multiple myeloma, while M-protein is a widely accepted biomarker used for multiple myeloma (MM) diagnose. Detecting MRD by monitoring M-protein using mass spectrometry (MS) is promising due to its high analytical sensitivity. To evaluate the correlation between MS-MRD and overall disease burden, over 60 patients with 500+ samples were identified for this study. The M-protein sequence and the patient-specific M-protein peptides of each patient were obtained by de novo protein sequencing platform using the diagnostic serum (> 30g/L). The follow- up samples were then measured by a parallel reaction monitoring (PRM) assay.

Inclusion Criteria:

Subjects with available baseline and sequential serum samples.

Exclusion Criteria:

Subjects without baseline and sequential serum samples.