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Findings

What does this study add?

  • At a median follow-up of 59 months, OS was greater in the neoadjuvant chemoradiotherapy group (15.7 months) than in the upfront surgery group (14.3 months) (HR, 0.73; 95% CI, 0.56-0.96; P=0.025).
  • The 5-year OS rate was 20.5% (95% CI, 14.2-29.8) with neoadjuvant chemoradiotherapy compared to 6.5% (95% CI, 3.1-13.7) with upfront surgery.
  • The effect of neoadjuvant chemoradiotherapy was consistent across the prespecified subgroups, including resectable and borderline resectable pancreatic cancer.
  • The secondary outcomes of disease-free survival and locoregional failure-free interval, as well as pathologic outcomes were also significantly better with the neoadjuvant approach.