%0 Journal Article %A Custodio, A %A Carmona-Bayonas, A %A Jiménez-Fonseca, P %A Sánchez, M L %A Viudez, A %A Hernández, R %A Cano, J M %A Echavarria, I %A Pericay, C %A Mangas, M %A Visa, L %A Buxo, E %A García, T %A Rodríguez Palomo, A %A Álvarez Manceñido, F %A Lacalle, A %A Macias, I %A Azkarate, A %A Ramchandani, A %A Fernández Montes, A %A López, C %A Longo, F %A Sánchez Bayona, R %A Limón, M L %A Díaz-Serrano, A %A Hurtado, A %A Madero, R %A Gómez, C %A Gallego, J %T Nomogram-based prediction of survival in patients with advanced oesophagogastric adenocarcinoma receiving first-line chemotherapy: a multicenter prospective study in the era of trastuzumab. %D 2017 %U http://hdl.handle.net/10668/11158 %X To develop and validate a nomogram and web-based calculator to predict overall survival (OS) in Caucasian-advanced oesophagogastric adenocarcinoma (AOA) patients undergoing first-line combination chemotherapy. Nine hundred twenty-four AOA patients treated at 28 Spanish teaching hospitals from January 2008 to September 2014 were used as derivation cohort. The result of an adjusted-Cox proportional hazards regression was represented as a nomogram and web-based calculator. The model was validated in 502 prospectively recruited patients treated between October 2014 and December 2016. Harrell's c-index was used to evaluate discrimination. The nomogram includes seven predictors associated with OS: HER2-positive tumours treated with trastuzumab, Eastern Cooperative Oncology Group performance status, number of metastatic sites, bone metastases, ascites, histological grade, and neutrophil-to-lymphocyte ratio. Median OS was 5.8 (95% confidence interval (CI), 4.5-6.6), 9.4 (95% CI, 8.5-10.6), and 14 months (95% CI, 11.8-16) for high-, intermediate-, and low-risk groups, respectively (P We developed and validated a straightforward model to predict survival in Caucasian AOA patients initiating first-line polychemotherapy. This model can contribute to inform clinical decision-making and optimise clinical trial design. %~