[{"from": "human", "value": "What can you tell me about this molecule? [223Ra]"}, {"from": "gpt", "value": "The molecule is under investigation in clinical trial NCT02463799 (Ph 2 Study of Sipuleucel-T W/ or W/O Radium-223 in Men With Asymptomatic or Minimally Symptomatic Bone-MCRPC)."}]