RT Journal Article T1 Serious liver injury induced by Nimesulide: an international collaboration study reporting 57 cases A1 Bessone, Fernando A1 Hernandez, Nelia A1 Mendizabal, Manuel A1 Ridruejo, Ezequiel A1 Gualano, Gisela A1 Fassio, Eduardo A1 Peralta, Mirta A1 Fainboim, Hugo A1 Anders, Margarita A1 Tanno, Hugo A1 Tanno, Federico A1 Parana, Raymundo A1 Medina-Cáliz, Inmaculada A1 Robles-Díaz, María Mercedes A1 Álvarez-Álvarez, Ismael A1 Niu, Hao A1 Stephens, Camilla A1 Colombato, Luis A1 Arrese, Marco A1 Reggiardo, Maria Virginia A1 Ono, Suzane Kioko A1 Carrilho, Flair A1 Lucena-González, María Isabel A1 Andrade-Bellido, Raúl Jesús K1 Hepatitis K1 Hígado - Enfermedades AB Nimesulide is a non-steroidal anti-inflammatory drug still marketed in many countries. We aim to analyze the clinical phenotype, outcome, and histological features of nimesulide-induced liver injury (nimesulide-DILI). We analyzed 57 cases recruited from the Spanish and LATIN DILI registries. Causality was assessed by the RUCAM scale. Mean age of the whole case series was 59 years (86% women) with a median time to onset of 40 days. A total of 46 patients (81%) were jaundiced. Nimesulide-DILI pattern was hepatocellular in 38 (67%), mixed in 12 (21%), and cholestatic in 7 (12%) cases. Transaminases were elevated with a mean of nearly 20-fold the upper limit of normality (ULN), while alkaline phosphatase showed a 2-fold mean elevation above ULN. Total bilirubin showed a mean elevation of 13-fold the ULN. Liver histology was obtained in 14 cases (25%), most of them with a hepatocellular pattern. Median time to recovery was 60 days. Overall, 12 patients (21%) developed acute liver failure (ALF), five (8.8%) died, three underwent liver transplantation (5.3%), and the remaining four resolved. Latency was ≤15 days in 12 patients (21%) and one patient developed ALF within seven days from treatment initiation. Increased total bilirubin and aspartate transaminase levels were independently associated with the development of ALF. In summary, nimesulide-DILI affects mainly women and presents typically with a hepatocellular pattern. It is associated with ALF and death in a high proportion of patients. Shorter (≤15 days) duration of therapy does not prevent serious nimesulide hepatotoxicity, making its risk/benefit ratio clearly unfavorable. PB Springer YR 2021 FD 2021-03-24 LK https://hdl.handle.net/10630/23626 UL https://hdl.handle.net/10630/23626 LA eng NO Bessone, F., Hernandez, N., Mendizabal, M. et al. Serious liver injury induced by Nimesulide: an international collaborative study. Arch Toxicol 95, 1475–1487 (2021). https://doi.org/10.1007/s00204-021-03000-8 NO The present study has been supported by grants of Instituto de Salud Carlos III cofounded by Fondo Europeo de Desarrollo Regional - FEDER (contract numbers: PI18-00901; PI 18/01804; PT20/00127) and Agencia Española del Medicamento. Plataforma ISCiii de Investigación Clínica and CIBERehd are funded by ISCIII. MRD holds a Joan Rodes (JR16/00015)/Acción B clinicos investigadores (B-0002-2019) research contract from ISCIII and Consejería de Salud de Andalucía, IAA holds a Sara Borrell research contract from the National Health System, ISCIII (CD 20/00083). DS RIUMA. Repositorio Institucional de la Universidad de Málaga RD 21 ene 2026