Long-term survival after resection for non-pancreatic periampullary cancer followed by adjuvant intra-arterial chemotherapy and concomitant radiotherapy

Joris Erdmann, Marjolein Morak, Hugo Duivenvoorden, H (Herman) van Dekken, G Kazemier, Niels Kok, Casper van Eijck

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BackgroundThere is no consensus regarding the optimal adjuvant treatment after resection of non-pancreatic periampullary adenocarcinoma (NPPC; distal common bile duct, ampulla, duodenum). ObjectivesThe present study was conducted to evaluate the impacts on longterm survival and recurrence of adjuvant intra-arterial chemotherapy (IAC) and concomitant radiotherapy (RT) in patients submitted to resection for NPPC or pancreatic ductal adenocarcinoma (PDAC) in a randomized controlled trial. MethodsA total of 120 patients with PDAC (n=62) or NPPC (n=58) were prestratified at a ratio of 1:1 for tumour origin and randomized. Half of these patients were treated with adjuvant IAC/RT and the other half were treated with surgery alone. Follow-up was completed for all patients up to 5years after resection or until death. ResultsThere was no survival benefit in either the whole group (primary endpoint) or the PDAC group after IAC/RT. In the NPPC group, longterm survival was observed in 10 patients in the IAC/RT group and five patients in the control group: median survival was 37months and 28months, respectively. The occurrence of liver metastases was reduced by IAC/RT from 57% to 29% (P=0.038). Cox regression analysis revealed a substantial effect of IAC/RT on survival (hazard ratio: 0.44, 95% confidence interval 0.23-0.83; P=0.011). ConclusionsThis longterm analysis shows that median and longterm survival were improved after IAC/RT in patients with NPPC, probably because of the effective and sustained reduction of liver metastases. The present results illustrate that NPPC requires an adjuvant approach distinct from that in pancreatic cancer and indicate that further investigation of this issue is warranted.
Original languageUndefined/Unknown
Pages (from-to)573-579
Number of pages7
Issue number7
Publication statusPublished - 2015

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