Introduction.Immunoparesis (IP) or the suppression of uninvolved immunoglobulins (Ig) is a very common finding in multiple myeloma (MM) patients at diagnosis that confers worse prognosis. In addition to classic total Ig, IP can be measured by the uninvolved heavy/light chain pair of the same immunoglobulin (uHLC). Previously, we have reported that recovery of uHLC IP in a single time point (at first year of maintenance) is an independent prognostic factor in newly diagnosed MM transplant eligible (NDMM-TE) patients with intensive treatment within a clinical trial, without significant prognostic value for recovery from classic IP in that setting. Moreover, recovery of uHLC IP affords complementary information to single time point minimal residual disease (MRD) for risk stratification. Although, negative sustained MRD is the most important evolutive favorable prognostic factor in MM, some patients relapse despite achieving negative sustained MRD.