• Quisette P Janssen, Stefan Buettner, Mustafa Suker, Berend R Beumer, Pietro Addeo, Philippe Bachellier, Nathan Bahary, Tanios Bekaii-Saab, Maria A Bali, Marc G Besselink, Brian A Boone, Ian Chau, Stephen Clarke, Mary Dillhoff, Bassel F El-Rayes, Jessica M Frakes, Derek Grose, Peter J Hosein, Nigel B Jamieson, Ammar A Javed, Khurum Khan, Kyu-Pyo Kim, Song Cheol Kim, Sunhee S Kim, Andrew H Ko, Jill Lacy, Georgios A Margonis, Martin D McCarter, Colin J McKay, Eric A Mellon, Sing Yu Moorcraft, Ken-Ichi Okada, Alessandro Paniccia, Parag J Parikh, Niek A Peters, Hans Rabl, Jaswinder Samra, Christoph Tinchon, Geertjan van Tienhoven, Eran van Veldhuisen, Andrea Wang-Gillam, Matthew J Weiss, Johanna W Wilmink, Hiroki Yamaue, Marjolein Y V Homs, van Eijck Casper H J CHJ See the Notes section for the full list of authors' affiliations., Katz Matthew H G MHG See the Notes section for the full list of authors' affiliations., and Bas Groot Koerkamp.
• See the Notes section for the full list of authors' affiliations.
• J. Natl. Cancer Inst. 2019 Aug 1; 111 (8): 782-794.

BackgroundFOLFIRINOX is a standard treatment for metastatic pancreatic cancer patients. The effectiveness of neoadjuvant FOLFIRINOX in patients with borderline resectable pancreatic cancer (BRPC) remains debated.MethodsWe performed a systematic review and patient-level meta-analysis on neoadjuvant FOLFIRINOX in patients with BRPC. Studies with BRPC patients who received FOLFIRINOX as first-line neoadjuvant treatment were included. The primary endpoint was overall survival (OS), and secondary endpoints were progression-free survival, resection rate, R0 resection rate, and grade III-IV adverse events. Patient-level survival outcomes were obtained from authors of the included studies and analyzed using the Kaplan-Meier method.ResultsWe included 24 studies (8 prospective, 16 retrospective), comprising 313 (38.1%) BRPC patients treated with FOLFIRINOX. Most studies (n = 20) presented intention-to-treat results. The median number of administered neoadjuvant FOLFIRINOX cycles ranged from 4 to 9. The resection rate was 67.8% (95% confidence interval [CI] = 60.1% to 74.6%), and the R0-resection rate was 83.9% (95% CI = 76.8% to 89.1%). The median OS varied from 11.0 to 34.2 months across studies. Patient-level survival data were obtained for 20 studies representing 283 BRPC patients. The patient-level median OS was 22.2 months (95% CI = 18.8 to 25.6 months), and patient-level median progression-free survival was 18.0 months (95% CI = 14.5 to 21.5 months). Pooled event rates for grade III-IV adverse events were highest for neutropenia (17.5 per 100 patients, 95% CI = 10.3% to 28.3%), diarrhea (11.1 per 100 patients, 95% CI = 8.6 to 14.3), and fatigue (10.8 per 100 patients, 95% CI = 8.1 to 14.2). No deaths were attributed to FOLFIRINOX.ConclusionsThis patient-level meta-analysis of BRPC patients treated with neoadjuvant FOLFIRINOX showed a favorable median OS, resection rate, and R0-resection rate. These results need to be assessed in a randomized trial.© The Author(s) 2019. Published by Oxford University Press. All rights reserved. For permissions, please email: journals.permissions@oup.com.

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