IBI334 in Subjects With Unresectable, Locally Advanced or Metastatic Solid Tumors

Subjects will receive IBI334 D once a week during the first 28-day cycle (QW, 4 weeks), then biweekly (or other dose intervals recommended by the Investigator and Sponsor based on safety, toxicity and PK data), until disease progression, toxicity intolerance, withdrawal of consent, occurrence of other reasons for discontinuing study therapy, or treatment duration reaches 24 months, whichever occurs first.

Subjects will receive IBI334 C once a week during the first 28-day cycle (QW, 4 weeks), then biweekly (or other dose intervals recommended by the Investigator and Sponsor based on safety, toxicity and PK data), until disease progression, toxicity intolerance, withdrawal of consent, occurrence of other reasons for discontinuing study therapy, or treatment duration reaches 24 months, whichever occurs first.

Subjects will receive IBI334 A once a week during the first 28-day cycle (QW, 4 weeks), then biweekly (or other dose intervals recommended by the Investigator and Sponsor based on safety, toxicity and PK data), until disease progression, toxicity intolerance, withdrawal of consent, occurrence of other reasons for discontinuing study therapy, or treatment duration reaches 24 months, whichever occurs first.

Subjects will receive IBI334 B once a week during the first 28-day cycle (QW, 4 weeks), then biweekly (or other dose intervals recommended by the Investigator and Sponsor based on safety, toxicity and PK data), until disease progression, toxicity intolerance, withdrawal of consent, occurrence of other reasons for discontinuing study therapy, or treatment duration reaches 24 months, whichever occurs first.

Subjects will receive IBI334 F once a week during the first 28-day cycle (QW, 4 weeks), then biweekly (or other dose intervals recommended by the Investigator and Sponsor based on safety, toxicity and PK data), until disease progression, toxicity intolerance, withdrawal of consent, occurrence of other reasons for discontinuing study therapy, or treatment duration reaches 24 months, whichever occurs first.

Subjects will receive IBI334 C once a week during the first 28-day cycle (QW, 4 weeks), then biweekly (or other dose intervals recommended by the Investigator and Sponsor based on safety, toxicity and PK data), until disease progression, toxicity intolerance, withdrawal of consent, occurrence of other reasons for discontinuing study therapy, or treatment duration reaches 24 months, whichever occurs first.