A Phase 1 Study of SKB571 in Subjects With Advanced Solid Tumors

Exclusion Criteria

• •1. Subjects with known active or untreated central nervous system (CNS) metastases.
• •2. Subjects with other malignant tumors within 3 years prior to the first dose.
• •3. Subjects with history of major cardiovascular, cerebrovascular, or thromboembolic disease.
• •4. Subjects with known active pulmonary tuberculosis.
• •5. Subjects with human immunodeficiency virus (HIV) infection, or any known active viral hepatitis, or hepatitis B or hepatitis C.
• •6. Subjects with major surgery within 28 days prior to the first dose.
• •7. Subjects with known allergy or hypersensitivity to SKB571 or its excipients.
• •8. Subjects with clinically severe lung injuries due to pulmonary complications.
• •9. Subjects with a history of allogeneic tissue/solid organ transplant.
• •10. Uncontrolled pleural effusion, pericardial effusion, or ascites effusion requiring repeated drainage.
• •11. Subjects who have received live vaccines within 30 days prior to the first dose of study treatment, or who are scheduled to receive live vaccines during the study.
• •12. Subjects who have received strong cytochrome P450 (CYP3A4) inhibitors or inducers, or BCRP inhibitors within 2 weeks prior to the first dose of study treatment or within 5 half-lives of known drug, whichever is longer.
• •13. Subjects who have received chemotherapy, immunotherapy, or biological therapy within 4 weeks prior to the first dose of study treatment.
• •14. Subjects with active infection requiring systemic anti-infective therapy within 14 days prior to the first dose of study treatment.
• •15. Subjects with any disease requiring systemic treatment with corticosteroids (prednisone at doses \> 10 mg/d or similar drugs with equivalent doses) or other immunosuppressive therapy within 14 days prior to the first dose of study treatment.
• •16. Subjects have received an investigational agent or has used an investigational device within 28 days prior to initial dose administration of SKB571.