A Study of MRG006A in the Treatment of Patients With Advanced Solid Tumors

Prior treatment

• For liver cancer, previous or current central nervous system metastases and/or meningeal metastases. Patients with treated stable brain metastases from non-hepatic cancers may participate.
• Severe cardiac insufficiency within 6 months prior to enrollment.
• Pulmonary embolism or deep venous thrombosis within 3 months before the first study drug treatment;
• Previous or combined interstitial pneumonia, severe chronic obstructive pulmonary disease with respiratory failure, severe pulmonary insufficiency, symptomatic bronchospasm and other medical history;
• Allergic reactions to any component or excipient of MRG006A, or known Grade ≥ 3 allergic reactions to other prior anti-GPC3 or other monoclonal antibodies.
• Receiving anti-tuberculosis treatment or receiving anti-tuberculosis treatment within 1 year before the first dose.
• Use of systemic corticosteroids within 4 weeks prior to first treatment.
• Use of strong CYP3A4 inducers, strong CYP3A4 inhibitors within 14 days or 5 times the half-life prior to the first dose.

Other illness

• History of liver failure and hepatic encephalopathy.
• Patients at high risk of bleeding.
• History of gastrointestinal perforation, fistula, and bowel obstruction, extensive bowel resection, Crohn 's disease, ulcerative colitis, or chronic diarrhea for the past 6 months.
• Patients with double cancer and multiple cancer.
• Uncontrolled or poorly controlled disease.
• History of ventricular tachycardia or torsades de pointes.
• Acute or chronic active hepatitis B or C infection.
• Active or clinically poorly controlled serious infection.
• People infected with human immunodeficiency virus (HIV), known syphilis infection requiring treatment.

Lab values

• Residual toxicity due to previous anti-tumor therapy or clinically significant laboratory abnormalities higher than grade 1 (CTCAEv5.0).

Other

• Moderate and above thoracoabdominal pelvic fluid and pericardial effusion with clinical symptoms.
• Portal vein tumor thrombus involving both the main portal vein and left and right branches, or involving both the main portal vein and mesenteric vein needs to be excluded. The tumor involves the vena cava, or has formed a vena cava tumor thrombus.

• Understand and provide written informed consent and comply with the requirements set forth in the protocol.
• age ≥ 18 years, ≤ 75 years.
• Expected survival ≥ 3 months.
• For patients with stage I and II disease, tumor tissue samples for GPC3 and P53 testing must be provided.
• Patients with histologically or cytologically confirmed advanced solid tumors.
• At least one measurable lesion according to RECISTv1.1 and mRECIST (HCC patients).
• Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1.
• Organ function must meet basic requirements.
• Women who are pregnant or breastfeeding are not included in this study.
• Female and male patients of childbearing potential must agree to take adequate measures.