PO.5.116 Lupus nephritis response in terms of kidney function, urine sediment and serological activity after belimumab treatment by JA Roman Ivorra, M de la Rubia Navarro, I Canovas Olmos, R Gonzalez Mazario, L Gonzalez Puig, E Grau Garcia, I Martinez Cordellat, C Najera Herranz, R Negueroles Albuixech, E Vicens Bernabeu, C Riesco Barcena, S Leal Rodríguez, C Pávez Perales, AV Huaylla Quispe, P Muñoz Martínez, L Mas Sánchez, J Oller Rodríguez, JR Ivorra Cortes, J Fragio Gil