This observational, retrospective, multicenter study included patients with metastatic pancreatic adenocarcinoma (either recurrent or de novo) from 20 Spanish hospitals, who started first-line chemotherapy with nab-paclitaxel (Abraxane®, Celgene Europe Limited) plus gemcitabine between December 2013 and June 2015 according to routine clinical practice. The record included all adult patients (i.e., aged ≥ 18 years) with measurable metastatic disease at baseline in at least one dimension of the Response Evaluation Criteria in Solid Tumors (RECIST), version 1.1,\[15\] who received at least one dose of combined treatment with nab-paclitaxel plus gemcitabine. Data were retrieved from patients' medical records and lasted until death or the closure of the database on 16 March 2017. All patients signed the corresponding informed consent for their clinical data being used in this study, which was conducted in accordance with the local personal data protection law (LOPD 15/1999). The study protocol was approved by the local independent ethics committee.
