%0 Journal Article %A Pérez-Valderrama, B %A Arranz Arija, J A %A Rodríguez Sánchez, A %A Pinto Marín, A %A Borrega García, P %A Castellano Gaunas, D E %A Rubio Romero, G %A Maximiano Alonso, C %A Villa Guzmán, J C %A Puertas Álvarez, J L %A Chirivella González, I %A Méndez Vidal, M J %A Juan Fita, M J %A León-Mateos, L %A Lázaro Quintela, M %A García Domínguez, R %A Jurado García, J M %A Vélez de Mendizábal, E %A Lambea Sorrosal, J J %A García Carbonero, I %A González del Alba, A %A Suárez Rodríguez, C %A Jiménez Gallego, P %A Meana García, J A %A García Marrero, R D %A Gajate Borau, P %A Santander Lobera, C %A Molins Palau, C %A López Brea, M %A Fernández Parra, E M %A Reig Torras, O %A Basterretxea Badiola, L %A Vázquez Estévez, S %A González Larriba, J L %T Validation of the International Metastatic Renal-Cell Carcinoma Database Consortium (IMDC) prognostic model for first-line pazopanib in metastatic renal carcinoma: the Spanish Oncologic Genitourinary Group (SOGUG) SPAZO study. %D 2015 %U http://hdl.handle.net/10668/9662 %X Patients with metastatic renal carcinoma (mRCC) treated with first-line pazopanib were not included in the International Metastatic Renal Cell Carcinoma Database Consortium (IMDC) prognostic model. SPAZO (NCT02282579) was a nation-wide retrospective observational study designed to assess the effectiveness and validate the IMDC prognostic model in patients treated with first-line pazopanib in clinical practice. Data of 278 patients, treated with first-line pazopanib for mRCC in 34 centres in Spain, were locally recorded and externally validated. Mean age was 66 years, there were 68.3% male, 93.5% clear-cell type, 74.8% nephrectomized, and 81.3% had ECOG 0-1. Metastatic sites were: lung 70.9%, lymph node 43.9%, bone 26.3%, soft tissue/skin 20.1%, liver 15.1%, CNS 7.2%, adrenal gland 6.5%, pleura/peritoneum 5.8%, pancreas 5%, and kidney 2.2%. After median follow-up of 23 months, 76.4% had discontinued pazopanib (57.2% due to progression), 47.9% had received second-line targeted therapy, and 48.9% had died. According to IMDC prognostic model, 19.4% had favourable risk (FR), 57.2% intermediate risk (IR), and 23.4% poor risk (PR). No unexpected toxicities were recorded. Response rate was 30.3% (FR: 44%, IR: 30% PR: 17.3%). Median progression-free survival (whole population) was 11 months (32 in FR, 11 in IR, 4 in PR). Median and 2-year overall survival (whole population) were 22 months and 48.1%, respectively (FR: not reached and 81.6%, IR: 22 and 48.7%, PR: 7 and 18.8%). These estimations and their 95% confidence intervals are fully consistent with the outcomes predicted by the IMDC prognostic model. Our results validate the IMDC model for first-line pazopanib in mRCC and confirm the effectiveness and safety of this treatment. %K metastatic renal cell cancer %K pazopanib %K prognostic classification %K tyrosine kinase inhibitors %~