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- W4361948141 abstract "<div>AbstractPurpose:<p>Modified FOLFIRINOX (mFFX) and gemcitabine/nab-paclitaxel (GnP) remain standard first-line options for patients with advanced pancreatic ductal adenocarcinoma (PDAC). Human equilibrative nucleoside transporter 1 (hENT1) was hypothesized to be a biomarker of gemcitabine in the adjuvant setting, with conflicting results. In this study, we explore hENT1 mRNA expression as a predictive biomarker in advanced PDAC.</p>Experimental Design:<p>COMPASS was a prospective observational trial of patients with advanced PDAC. A biopsy was required prior to initiating chemotherapy, as determined by treating physician. Biopsies underwent laser capture microdissection prior to whole genome and RNA sequencing. The cut-off thresholds for hENT1 expression were determined using the maximal <i>χ</i><sup>2</sup> statistic.</p>Results:<p>253 patients were included in the analyses with a median follow-up of 32 months, with 138 patients receiving mFFX and 92 receiving GnP. In the intention to treat population, median overall survival (OS) was 10.0 months in hENT1<sup>high</sup> versus 7.9 months in hENT1<sup>low</sup> (<i>P</i> = 0.02). In patients receiving mFFX, there was no difference in overall response rate (ORR; 35% vs. 28%, <i>P</i> = 0.56) or median OS (10.6 vs. 10.5 months, <i>P</i> = 0.45). However, in patients treated with GnP, the ORR was significantly higher in hENT1<sup>high</sup> compared with hENT1<sup>low</sup> tumors (43% vs. 21%, <i>P</i> = 0.038). Median OS in this GnP-treated cohort was 10.6 months in hENT1<sup>high</sup> versus 6.7 months hENT1<sup>low</sup> (<i>P</i> < 0.001). In an interaction analysis, hENT1 was predictive of treatment response to GnP (interaction <i>P</i> = 0.002).</p>Conclusions:<p>In advanced PDAC, hENT1 mRNA expression predicts ORR and OS in patients receiving GnP.</p></div>" @default.
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- W4361948141 date "2023-04-01" @default.
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- W4361948141 title "Data from hENT1 Expression Predicts Response to Gemcitabine and Nab-Paclitaxel in Advanced Pancreatic Ductal Adenocarcinoma" @default.
- W4361948141 doi "https://doi.org/10.1158/1078-0432.c.6532926" @default.
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