Fax +41 61 306 12 34 E-Mail karger@karger.ch www.karger.com Original Report: Patient-Oriented, Translational Research Am J Nephrol 2012;35:424–433 DOI: 10.1159/000337916 Mycophenolate as Induction Therapy in Lupus Nephritis with Renal Function Impairment F. Rivera a X. Fulladosa b R. Poveda b M.A. Frutos c P. García-Frías c J. Ara d L. Illescas e E. López-Rubio e E. Mérida f A. Carreño a J. Ballarín g G. Fernández-Juárez h J. Baltar i C. Ramos j S. Pons j A. Oliet k A. Vigil k M. Praga f A. Segarra l Spanish Group for the Study of Glomerular Disease (GLOSEN) a Hospital General de Ciudad Real, Ciudad Real, b Hospital Universitari de Bellvitge, Bellvitge, c Hospital Universitario Carlos Haya, Malaga, d Hospital Universitari Germans Trias i Pujol, Badalona, e Hospital General Universitario de Albacete, Albacete, f Hospital Universitario 12 de Octubre, Madrid, g Fundació Puigvert, Barcelona, h Fundación Hospital Alcorcón, Alcorcón, i Hospital Universitario Central de Asturias, Oviedo, j Hospital Clinic Universitari de Valencia, Valencia, k Hospital Severo Ochoa, Madrid, y l Hospital Vall d’Hebron, Vall d’Hebron, España of patients who achieved any response and its relationship with initial eGFR. The secondary outcome measures were the percentage of patients who achieved a complete response (CR) or partial response (PR) and the appearance of relapses during treatment and side effects. Results: At initiation of MF treatment, there were no differences in the main param- eters between group 1 (n = 63; eGFR 87 8 23 ml/min/ 1.73 m 2 ) and group 2 (n = 27; eGFR 44 8 12 ml/min/1.73 m 2 ). Exposure to prednisone and MF was similar. The percentag- es of patients who achieved a response in groups 1 and 2 were, respectively, 69.2 and 43.8% at 6 months and 81.3 and 73.7% at 12 months. CR was more frequent in group 1, where- as PR was similar in both groups. Four patients relapsed and side effects were unremarkable. Conclusions: MF is effective and safe as induction therapy for LN, and response is even achieved in patients with baseline renal impairment. Copyright © 2012 S. Karger AG, Basel Key Words Lupus nephritis Systemic lupus erythematous Mycophenolate Renal failure Abstract Background: Mycophenolate (MF) is effective as induction therapy for lupus nephritis (LN) in patients with normal renal function; however, little is known about its role in patients with impaired renal failure. The purpose of this study was to evaluate the response to MF in LN and its association with baseline renal function. Methods: Data were obtained for 90 patients from 12 Spanish renal units who were receiving MF as induction therapy for LN. Patients were classified into 2 groups: group 1 (estimated glomerular filtration rate [eGFR] 660 ml/min/1.73 m 2 ) and group 2 (eGFR !60 ml/min/ 1.73 m 2 ). The primary outcome measure was the percentage Received: January 23, 2012 Accepted: March 8, 2012 Published online: April 20, 2012 Nephrolo gy American Journal of Dr. Francisco Rivera Sección de Nefrología Hospital General de Ciudad Real ES–13004 Ciudad Real (Spain) Tel. +34 92 627 8000, E-Mail friverahdez  @  senefro.org © 2012 S. Karger AG, Basel 0250–8095/12/0355–0424$38.00/0 Accessible online at: www.karger.com/ajn