Secondary AA-amyloidosis is sometimes associated with chronic inflammatory arthritis, such as rheumatoid arthritis (RA) and spondylarthropathies (SpA), with an extracellular accumulation of amyloid proteins in the tissues of various organs. This amyloid is composed of serum amyloid P-component (SAP), serum amyloid A (SAA), an acute phase protein, and proteoglycans. Renal involvement is the most frequent manifestation of secondary amyloidosis, usually presenting with asymptomatic proteinuria.

According to earlier literature, the prognosis of AA-amyloidosis was considered very poor. Treatment with corticosteroids and immunosuppressive drugs, mainly alkylating agents, consisted of adequate suppression of the underlying inflammatory process. Recently, eprodisate was shown to slow the decline in renal function by inhibition of the production of …