Dissemin is shutting down on January 1st, 2025

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British Institute of Radiology, British Journal of Radiology, 1106(93), p. 20190627, 2020

DOI: 10.1259/bjr.20190627

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Is there an oligometastatic state in pancreatic cancer? Practical clinical considerations raise the question

Distributing this paper is prohibited by the publisher
Distributing this paper is prohibited by the publisher

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Data provided by SHERPA/RoMEO

Abstract

Objectives: To evaluate the role of stereotactic body radiotherapy (SBRT) as a local ablative treatment (LAT) in oligometastatic pancreatic cancer. Methods: Patients affected by histologically confirmed stage IV pancreatic adenocarcinoma were included in this analysis. Endpoints are local control (LC), progression-free survival (PFS), and overall survival (OS). Results: From 2013 to 2017, a total of 41 patients were treated with SBRT on 64 metastases. Most common sites of disease were lung (29.3%) and liver (56.1%). LC at 1 and 2 years were 88.9% (95% CI 73.2–98.6) and 73.9% (95% CI 50–87.5), respectively. Median LC was 39.9 months (95% CI 23.3—not reached). PFS rates at 1 and 2 years were 21.9% (95% CI 10.8–35.4) and 10.9% (95% CI 3.4–23.4), respectively. Median PFS was 5.4 months (95%CI 3.1–11.3). OS rates at 1 and 2 years were 79.9% (95% CI 63.7–89.4) and 46.7% (95% CI 29.6–62.2). Median OS was 23 months (95%CI 14.1–31.8). Conclusions: Our results, although based on a retrospective analysis of a small number of patients, show that patients with oligometastatic pancreatic cancer may benefit from local treatment with SBRT. Larger studies are warranted to confirm these results. Advances in knowledge: Selected patients affected by oligometastatic pancreatic adenocarcinoma can benefit from local ablative approaches, like SBRT