Hepatic Arterial Infusion Chemotherapy Plus Envafolimab and Lenvatinib for First-Line Unresectable Advanced Biliary Tract Cancer

Sponsor
West China Hospital
Study ID
NCT07636798
Phase
PHASE1/PHASE2
Status
Recruiting
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Conditions

  • Biliary Tract Cancer

Eligibility Criteria

Sex
ALL
Age
18 Years - 75 Years
Healthy Volunteers
Not accepted

Interventions

  • HAIC Combined Regimen Treatment Group — DRUG
    In Phase Ib, nine patients will be enrolled and allocated to three dose cohorts to receive the combination regimen of HAIC (GP) + intra-arterial infusion of envafolimab + lenvatinib. Dose-limiting toxicities (DLTs) will be monitored for 28 days following administration. If no DLTs occur, the regimen will be considered tolerable, and patients will continue follow-up until 60 days post-administration. Investigators confirm Phase II initiation and optimal dose per safety data. In Phase II, 20 subjects adopt the optimized dose regimen. They firstly receive two cycles of combined treatment for efficacy evaluation. Those with clinical benefits finish six cycles in total, then switch to maintenance treatment until treatment ends, disease progresses, adverse reactions are intolerable, subjects withdraw consent or treatment is terminated by researchers. Robotic arm is applied to assist accurate hepatic artery catheterization and stable drug infusion during interventional procedures.

Study Details

Advanced biliary tract cancer has a poor prognosis and limited efficacy with current regimens. This multicenter single-arm phase Ib/II trial explores the efficacy and safety of HAI-GP chemotherapy combined with intraoperative arterial envafolimab and lenvatinib as first-line therapy for unresectable BTC. It conducts dose exploration to confirm the optimal dosage and evaluates clinical outcomes, aiming to establish a better comprehensive treatment strategy.

Key Dates

First listed
Jun 9, 2026
Start date
Jun 30, 2026
Status verified
Jul 2026
Primary completion
Mar 31, 2029
Completion
Dec 31, 2029

Study Design

Enrollment
20 participants (estimated)
Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT

Arms

  • Experimental: HAIC Combined Regimen Treatment Group
    In Phase Ib, nine patients will be enrolled and allocated to three dose cohorts to receive the combination regimen of HAIC (GP) + intra-arterial infusion of envafolimab + lenvatinib. Dose-limiting toxicities (DLTs) will be monitored for 28 days following administration. If no DLTs occur, the regimen will be considered tolerable, and patients will continue follow-up until 60 days post-administration. Investigators confirm Phase II initiation and optimal dose per safety data. In Phase II, 20 subjects adopt the optimized dose regimen. They firstly receive two cycles of combined treatment for efficacy evaluation. Those with clinical benefits finish six cycles in total, then switch to maintenance treatment until treatment ends, disease progresses, adverse reactions are intolerable, subjects withdraw consent or treatment is terminated by researchers. Robotic arm is applied to assist accurate hepatic artery catheterization and stable drug infusion during interventional procedures.

Primary Outcome Measure

Primary endpoint for Phase Ib: Dose-Limiting Toxicity (DLT) [ Time Frame: Within 28 days after first dose (one safety observation cycle) ]

Central Contacts

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