the percentage of LN patients in histopathological remission after 12 months of standard of care immunosuppression.
histological and immunological (immune deposits) response to therapy with clinical response.
whether therapeutic decisions steered by the results of a per-protocol repeat kidney biopsy improve renal outcomes compared with a matched control group of patients who did not undergo repeat kidney biopsy.
To generate data
on how to evaluate response to therapy in pure membranous LN (ISN/RPS class V), as well as the value of the information retrieved from repeat kidney biopsies in portending long-term renal prognosis in this LN subset.