RecruitingPhase 1Drug trialPhase I Study of [177Lu]Lu-DFC413 in Patients With Solid TumorsThe purpose of this study is to evaluate the safety, tolerability, dosimetry and preliminary efficacy of \[177Lu\]Lu-DFC413 and safety and imaging properties of \[68Ga\]Ga-NNS309 in patients aged ≥ 18 years with solid tumors