An international comparison of treatment and short-term overall survival for older patients with pancreatic cancer.

Objectives: A significant proportion of patients with pancreatic cancer are over the age of 70 years. The aim was to compare treatment and survival for older patients with pancreatic cancer treated throughout the Netherlands or Moffitt Cancer Center (Tampa, Florida).

Methods: All age-eligible patients with pancreatic adenocarcinoma (2008-2012) were identified. Results were stratified by stage. Treatment (neoadjuvant, surgery, adjuvant and palliative treatment) and short-term survival were compared, and where appropriate adjusted (sex, age, grade, year) or stratified according to age or hospital (Netherlands- academic, teaching, non-teaching).

Results: In total, 2728 patients were included. Neo-adjuvant chemoradiation was more often administered at Moffitt (non-metastatic stages), as was adjuvant chemoradiation and chemotherapy (p < .001). The proportion surgery was not significantly different. In patients with advanced disease, more patients at Moffitt underwent palliative chemotherapy (64.5% versus 17.4%; p < .001). Short-term survival was better among Moffitt patients (HR 0.30 (95%CI 0.11-0.82), HR 0.56 (0.41-0.72), HR 0.43 (0.36-0.52) for early, T3 or node positive and advanced). Differences were less pronounced comparing Dutch academic hospitals to Moffitt.

Conclusion: In the present comparison, a treatment regimen as delivered at Moffitt was associated with prolonged short-term survival. Further detailed analyses of selection criteria for systemic treatment could lead to tailored treatment and improved outcomes.