Surgical Debulking Prior to Peptide Receptor Radionuclide Therapy (PRRT) in Patients With Well Differentiated Gastroenteropancreatic Neuroendocrine Tumors
Vanderbilt-Ingram Cancer Center
Summary
This phase IV trial evaluates how well giving standard of care (SOC) peptide receptor radionuclide therapy (PRRT) after SOC surgical removal of as much tumor as possible (debulking surgery) works in treating patients with grade 1 or 2, somatostatin receptor (SSTR) positive, gastroenteropancreatic neuroendocrine tumors (GEP-NETs) that have spread from where they first started (primary site) to the liver (hepatic metastasis). Lutetium Lu 177 dotatate is a radioactive drug that uses targeted radiation to kill tumor cells. Lutetium Lu 177 dotatate includes a radioactive form (an isotope) of the element called lutetium. This radioactive isotope (Lu-177) is attached to a molecule called dotatate. On the surface of GEP-NET tumor cells, a receptor called a somatostatin receptor binds to dotatate. When this binding occurs, the lutetium Lu 177 dotatate drug then enters somatostatin receptor-positive tumor cells, and radiation emitted by Lu-177 helps kill the cells. Giving lutetium Lu 177 dotatate after surgical debulking may better treat patients with grade 1/2 GEP-NETs
Description
PRIMARY OBJECTIVES: I. To measure objective response rate of a combination standard of care treatment in gastroenteropancreatic neuroendocrine tumors by initiating lutetium Lu 177 dotatate within 90 days of surgical debulking. II. To assess the radiomic profile including somatostatin receptor standardized uptake values (SSTR SUV) of large and non-large tumors in study patients) III: To assess the safety and tolerability of peptide receptor radionuclide therapy (PRRT) post-surgical debulking in patients on study. IV. To assess the tumor genomic profile of large, resected tumors from patient…