A Study of IBI3004 in Subjects With Unresectable, Locally Advanced or Metastatic Solid Tumors

IBI3004 will be administered. The Dose Limiting Toxicity (DLT) will be observed in the first treatment cycle. After completion of the DLT observation period, subjects will continue to receive IBI3004 until death, disease progression, intolerable toxicity, start of a new anticancer treatment, withdrawal of consent for study participation, end of the study, or for a maximum of 24 months, whichever occurs first.