Comparison of neoadjuvant therapy and upfront surgery in resectable pancreatic cancer: a meta-analysis and systematic review.

Abstract:

Objective:The role of neoadjuvant therapy (NAT) in resectable pancreatic cancer (RPC) remains controversial. Therefore, this meta-analysis was performed to compare the clinical differences between NAT and upfront surgery in RPC. Materials and methods:A systematic literature search was performed in PubMed, Embase, Web of Science, and the Cochrane Register of Controlled Trials databases. Only patients with RPC who underwent tumor resection and received adjuvant or neoadjuvant treatment were enrolled. The OR or HR and 95% CIs were calculated employing fixed-effects or random-effects models. The HR and its 95% CI were extracted from each article that provided survival curve. Publication bias was estimated using funnel plots and Egger's regression test. Results:In total, eleven studies were included with 9,386 patients. Of these patients, 2,508 (26.7%) received NAT. For patients with RPC, NAT resulted in an increased R0 resection rate (OR=1.89; 95% CI=1.26-2.83) and a reduced positive lymph node rate (OR=0.34; 95% CI=0.31-0.37) compared with upfront surgery. Nevertheless, patients receiving NAT did not exhibit a significantly increased overall survival (OS) time (HR=0.91; 95% CI=0.79-1.05). Conclusion:In patients with RPC, R0 resection rate and positive lymph node rate after NAT were superior to those of patients with upfront surgery. The NAT group exhibited no significant effect on OS time when compared with the upfront surgery group. However, this conclusion requires more clinical evidence to improve its credibility.

journal_name

Onco Targets Ther

journal_title

OncoTargets and therapy

authors

Ren X,Wei X,Ding Y,Qi F,Zhang Y,Hu X,Qin C,Li X

doi

10.2147/OTT.S190810

subject

Has Abstract

pub_date

2019-01-22 00:00:00

pages

733-744

issn

1178-6930

pii

ott-12-733

journal_volume

12

pub_type

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