Measurable disease as defined by serum differential free light chain concentration (dFLC, difference between amyloid forming [ ... Physical component summary (PCS) is mostly contributed by physical function (PF), role physical (RP), bodily pain (BP), and ... Objective, measurable major (cardiac or renal) organ amyloid involvement as defined as follows (amyloid involvement of at least ... CR: Complete disappearance of M-protein from serum and urine on immunofixation, and normalization of Free Light Chain (FLC) ...