- Locally unresectable or metastatic neuroendocrine tumor (carcinoid tumor or pancreatic neuroendocrine tumor). Patients must have confirmed low-grade or intermediate-grade neuroendocrine carcinoma. Patients with poorly differentiated neuroendocrine carcinoma, high-grade neuroendocrine carcinoma, adenocarcinoid, goblet cell carcinoid, and small cell carcinoma are not eligible.