About this trial
This study is a multicenter, single-arm prospective clinical trial designed to evaluate the efficacy of TACE combined with thermal ablation, antibody-drug conjugates, immune checkpoint inhibitors, and first-line chemotherapy for the treatment of HER2 - highly expressing gastric cancer with liver metastases.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Participants voluntarily joined this study, signed informed consent forms, demonstrated good compliance, and cooperated with follow-up.
Male or female, aged 18 or older and 75 or younger;
ECOG score is 0-1;
Expected survival time ≥ 3 months;
Disqualifiers
diagnosed with other malignant tumors within 5 years prior to the first dose and who are not cured (excluding radically resected basal cell carcinoma of the skin, squamous cell carcinoma of the skin, and/or carcinoma in situ that has been radically removed);
Currently participating in interventional clinical research treatment, or having received other investigational drugs or used investigational devices within 4 weeks prior to the first dose;
Previous treatment with the following: antibody-drug conjugates, anti-PD-1, anti-PD-L1 or anti-PD-L2 drugs or drugs that stimulate or co-inhibit T cell receptors (e.g. CTLA-4, OX-40, CD137);
Within 28 days prior to the first administration of the study drug, the target lesion had received local treatment (including transarterial chemoembolization/TACE, hepatic artery infusion chemotherapy/TAC, radiotherapy, radioembolization or ablation, etc.);
Trial design
Single group
Treatments tested in this trial
TACE combined with thermal ablation
Other interventionThe decision to perform transarterial chemoembolization (TACE) and/or thermal ablation is based on the blood supply, size, and number of liver metastases as determined by imaging examinations. Interventional therapy is repeated every two cycles, and TACE and/or thermal ablation therapy are selected based on the blood supply, location, size and number of liver metastases.
Targeted Therapy
DrugDisitamab Vedotin For Injection: 2.5 mg/kg, day 1, IV drip , Q3W.
Immunotherapy
DrugSintilimab : 200mg , d1 , ivdrip , q3w
Chemotherapy
DrugS-1 : 40-60 mg/dose, orally, twice daily (bid), daily (days 1-14) , every 3 weeks (q3w).
Treatment groups
Trial outcomes
Primary outcomes
Objective response rate (ORR)
The proportion of subjects who achieve complete response (CR) and partial response (PR) among the total subjects.
Secondary outcomes
Progression-Free Survival(PFS)
The time from treatment initiation to disease progression or death from any cause in cancer patients.
Disease Control Rate(DCR)
The proportion of patients with tumor shrinkage or stabilization maintained for a certain duration, including those with complete response (CR), partial response (PR), and stable disease (SD).
Overall Survival (OS)
The time from initial treatment to death from any cause
Adverse Event (AE)
Type, incidence, grading (based on NCI-CTCAE v5.0 criteria), and duration of adverse event
Locations
Sponsors and contacts
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