ArticleJournal of gastrointestinal cancer2026
Trend of Adjuvant Radiation in Resected Pancreatic Ductal Adenocarcinoma: Evaluation of RTOG 0848 with a Large National Database.
Article in Journal of gastrointestinal cancer, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
purposeAdjuvant radiation (AR) remains a controversial treatment modality for pancreatic ductal adenocarcinoma (PDAC). This study aimed to evaluate the findings of the RTOG 0848 trial assessing the benefits of adjuvant radiation in node-negative disease utilizing a national database.
methodsUtilizing the National Cancer Database, all patients diagnosed with non-metastatic PDAC, who underwent pancreatectomy, were included (2004-2019). The trend of adjuvant radiation utilization was evaluated. Overall survival in a cohort of patients mimicking the RTOG 0848 protocol was examined as were clinicodemographic and pathologic predictors of adjuvant radiation.
resultsOverall rates of adjuvant radiation decreased from 45 to 12%, while neoadjuvant radiation rates simultaneously increased from 4 to 12%. Positive margins and nodal disease were the strongest predictors of adjuvant radiation receipt (OR 1.7[ 95% CI: 1.6-1.7] p < 0.001 and OR: 1.1 [95% CI: 1.1-1.2] p < 0.001; respectively). Both high-risk pathologic groups experienced a decline in the use of adjuvant radiation over time, even after exclusion of patients who received neoadjuvant radiation. After application of the RTOG 0848 criteria, improved overall survival was observed in patients with node-negative and positive margins (adjuvant radiation: 28.6 [95% CI: 25.4-31.8] vs 23.0 [95% CI: 19.4-26.7] months; p = 0.005). In the margin positive cohort, adjuvant radiation was significantly associated with reduced mortality (HR: 0.791 [95% CI: 0.7-0.9]; p < 0.001).
conclusionEvaluation of RTOG 0848 in the setting of real-world data indicates a role for adjuvant radiation for patients with margin-positive, node-negative pancreatic cancer. This highlights the essential role of multidisciplinary discussions regarding patients with PDAC care.
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