Aim: To determine the efficacy of 90Y [DOTA0, D-Phe1, Tyr3]-octreotate (DOTATATE) in 67 patients with pancreatic and small bowel neuroendocrine tumors (NETs). Patients & methods: The primary efficacy end point was overall survival (OS) and secondary end points were progression-free survival (PFS) and tumor response. Results: Median PFS in pancreatic and small bowel NETs was 25 and 28 months, respectively, and median OS was 42 and 38.5 months, respectively. No intergroup differences in median OS (p = 0.945) or PFS (p = 0.174) were found, also after adjustment for tumor origin, secretory status and grade, and patient’s gender. Conclusion: 90Y-DOTATATE may have similar efficacy in pancreatic and small bowel NETs. Better WHO performance status at baseline seems to be associated with more favorable outcomes.
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