While urinary PCR is a feasible test to do, proteinuria is known to be a slowly changing marker, often taking years to resolve.6 Additionally, in LN cases presenting with nephrotic-range proteinuria, in which recovery may take longer to achieve,23 changes in serum albumin from baseline to 6–9 months (and the absolute serum albumin level at that time), would provide a valuable tool for predicting a later response, i.e. PEPR at 18–21 months. This evidence concerns the gene ALB and lobular neoplasia.