Adjuvant therapy is associated with improved overall survival in patients with pancreatobiliary or mixed subtype ampullary cancer after pancreatoduodenectomy - A multicenter cohort study

Louisa Bolm, Kristina Ohrner, Gennaro Nappo, Felix Rückert, Carolin Zimmermann, Bettina M. Rau, Ekaterina Petrova, Kim C. Honselmann, Hryhoriy Lapshyn, Dirk Bausch, Jürgen Weitz, Marta Sandini, Tobias Keck*, Alessandro Zerbi, Marius Distler, Ulrich F. Wellner

*Corresponding author for this work
1 Citation (Scopus)

Abstract

Background/Objective: The benefit of adjuvant therapy in ampullary cancer (AMPAC) patients following pancreatoduodenectomy (PD) is debated. The aim of this study was to determine the role of adjuvant therapy after pancreatoduodenectomy (PD) in histological subtypes of AMPAC. Methods: Patients undergoing PD for AMPAC at 5 high-volume European surgical centers from 1996 to 2017 were identified. Patient baseline characteristics, surgical and histopathological parameters, and long-term overall survival (OS) after resection were evaluated. Results: 214 patients undergoing PD for AMPAC were included. ASA score (ASA1-2 149 vs. ASA 3–4 82 months median OS, p = 0.002), preoperative serum CEA (CEA <0.5 ng/ml 128 vs. CEA >0.5 ng/ml 62 months, p = 0.013), preoperative serum CA19-9 (CA19-9 < 40 IU/ml 147 vs. CA19-9 > 40IU/ml 111 months, p = 0.042), T stage (T1-2 163 vs. T3-4 98 months, p < 0.001), N stage (N0 159 vs. N+ 110 months, p < 0.001), grading (G1-2 145 vs. G3-4 113 months, p = 0.026), R status (R0 136 vs. R+ 38 months, p = 0.031), and histological subtype (intestinal subtype 156 vs. PB/M subtype 118 months, p = 0.003) qualified as prognostic parameters. In multivariable analysis, ASA score (HR 1.784, 95%CI 0.997–3.193, p = 0.050) and N stage (HR 1.831, 95%CI 0.904–3.707, p = 0.033) remained independent prognostic factors. In PB/M subtype AMPAC, patients undergoing adjuvant therapy showed an improved median overall survival (adjuvant therapy 85 months vs. no adjuvant therapy 65 months, p = 0.005), and adjuvant therapy remained an independent prognostic parameter in multivariate analysis (HR 0.351, 95%CI 0.151–0.851, p = 0.015). There was no significant benefit of adjuvant therapy in intestinal subtype AMPAC patients. Conclusion: Adjuvant treatment seems indicated in pancreatobiliary or mixed type AMPAC.

Original languageEnglish
JournalPancreatology
Volume20
Issue number3
Pages (from-to)433-441
Number of pages9
ISSN1424-3903
DOIs
Publication statusPublished - 04.2020

Research Areas and Centers

  • Research Area: Luebeck Integrated Oncology Network (LION)

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