Study to Test the Combination of Fulvestrant With Lu-DOTATATE for Advanced Pancreatic Neuroendocrine Tumors

"Safety-Run In: Starting Dose: 500 mg IM on Days 1, 15, and 29 of Cycle 1; followed by 500 mg IM on Days 1 and 29 of every cycle thereafter for a total of 9 doses.~Dose Expansion: 500 mg IM: Days 1, 15, and 29 of Cycle 1; followed by 500 mg IM on Days 1 and 29 of every cycle thereafter for a total of 9 doses."

"Safety-Run In: Starting Dose: 7.4 GBq (200 mCi) IV every 8 weeks for a total of 4 Cycles~Dose Expansion:177Lu-DOTATATE7.4 GBq (200 mCi) IV or 3.7 GBq (100 mCi) IV: IV dose every 8 weeks for a total of 4 Cycles."