Not Yet RecruitingPhase 3

Stratified Treatment in Unresectable Locally Advanced ESCC Without Progression After Chemoimmunotherapy Induction Plus CCRT: Toripalimab Consolidation vs observation--a Prospective, Randomized, Controlled Phase III Multicenter Study

340 participantsStarted 2025-12-15

Plain-language summary

This study is a prospective, randomized controlled, phase III multicenter trial. Its objectives are to explore the stratified application of consolidation immunotherapy after chemoimmunotherapy induction plus concurrent chemoradiotherapy, identify the potential beneficiary population of consolidation immunotherapy, and evaluate the efficacy and safety of consolidation immunotherapy. The main participants are patients with unresectable locally advanced esophageal squamous cell carcinoma who have undergone 2-4 cycles of chemoimmunotherapy induction followed by concurrent chemoradiotherapy. Imaging assessment should be completed within 1-84 days after the end of chemoradiotherapy. Eligible patients meeting the inclusion and exclusion criteria will be divided into the CR/PR cohort and SD cohort based on treatment response, and receive the following treatments respectively: CR/PR cohort: Patients with a response assessment of CR (Complete Response) or PR (Partial Response) will be randomly assigned at a 1:1 ratio to: Toripalimab monotherapy maintenance group (Group A1) vs. Observation group (Group A2) (116 patients vs. 116 patients) SD cohort: Patients with a response assessment of SD (Stable Disease) will be randomly assigned at a 1:1 ratio to: Toripalimab monotherapy maintenance group (Group B1) vs. Observation group (Group B2) (54 patients vs. 54 patients) The medication dosage is as follows: Toripalimab 240mg, intravenous infusion on Day 1, every 3 weeks (Q3W). A total of 3 treatment cycles will be administered. Subsequent treatment continuation will be determined by the patient. If continued, treatment will proceed until the occurrence of disease progression (radiological progression confirmed by RECIST v1.1), intolerable toxicity, initiation of new antitumor therapy, voluntary withdrawal of the subject from the study, or the investigator's judgment that the subject needs to withdraw. The maximum duration of medication is 1 year.

Who can participate

Age range18 Years – 75 Years

SexALL

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AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.

Inclusion criteria

✓. Patients voluntarily participate in this study, signed informed consent, good compliance with follow-up;
✓. Aged 18-75 years (inclusive), male or female;
✓. Clinically staged II-IVa unresectable (AJCC 8th ed.: cT1N2-3M0/cT2-4bN0-3M0) or IVb (supraclavicular lymph node metastasis only); the patient had no disease progression after 2-4 cycles of chemo-immunotherapy induction combined with concurrent chemoradiotherapy (CCRT). Patients receiving CCRT must meet the following criteria: Patients with inoperable tumors must have received at least 2 cycles of weekly regimen or 1 cycle of 3-week platinum-based chemotherapy combined with radical radiotherapy (50-64 Gy) and have no evidence of radiographic disease progression (according to RECISTv1.1) as compared to before and after radical concurrent chemoradiation;
✓. ECOG PS 0-1;
✓. Expected survival ≥3 months;
✓. Fresh or archived tumor tissue samples within 6 months should be provided for biomarker analysis. The sample type is FFPE tumor tissue block or at least 10 unstained FFPE tumor tissue sections with a thickness of 3-5 μm. For patients who cannot provide tissue samples meeting the above requirements, the investigator should discuss and determine whether to enroll;
✓. Adequate organ and bone marrow function defined as:

What they're measuring

1 year Progress Free Survival (PFS) rate

Timeframe: 12 months

Trial details

NCT IDNCT07246330

SponsorTianjin Medical University Cancer Institute and Hospital

Sponsor typeOTHER

Study typeINTERVENTIONAL

Primary completion2027-12-15

View on ClinicalTrials.gov More Esophageal Squamous Cell Carcinoma (ESCC) trials

Plain-language summary

Who can participate

Age range18 Years – 75 Years

SexALL

See this in plain English?

AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.

Inclusion criteria

✓. Patients voluntarily participate in this study, signed informed consent, good compliance with follow-up;
✓. Aged 18-75 years (inclusive), male or female;
✓. Clinically staged II-IVa unresectable (AJCC 8th ed.: cT1N2-3M0/cT2-4bN0-3M0) or IVb (supraclavicular lymph node metastasis only); the patient had no disease progression after 2-4 cycles of chemo-immunotherapy induction combined with concurrent chemoradiotherapy (CCRT). Patients receiving CCRT must meet the following criteria: Patients with inoperable tumors must have received at least 2 cycles of weekly regimen or 1 cycle of 3-week platinum-based chemotherapy combined with radical radiotherapy (50-64 Gy) and have no evidence of radiographic disease progression (according to RECISTv1.1) as compared to before and after radical concurrent chemoradiation;
✓. ECOG PS 0-1;
✓. Expected survival ≥3 months;
✓. Fresh or archived tumor tissue samples within 6 months should be provided for biomarker analysis. The sample type is FFPE tumor tissue block or at least 10 unstained FFPE tumor tissue sections with a thickness of 3-5 μm. For patients who cannot provide tissue samples meeting the above requirements, the investigator should discuss and determine whether to enroll;
✓. Adequate organ and bone marrow function defined as:

Stratified Treatment in Unresectable Locally Advanced ESCC Without Progression After Chemoimmunotherapy Induction Plus CCRT: Toripalimab Consolidation vs observation--a Prospective, Randomized, Controlled Phase III Multicenter Study

Plain-language summary

Who can participate

Inclusion criteria

What they're measuring

Trial details

Stratified Treatment in Unresectable Locally Advanced ESCC Without Progression After Chemoimmunotherapy Induction Plus CCRT: Toripalimab Consolidation vs observation--a Prospective, Randomized, Controlled Phase III Multicenter Study

Plain-language summary

Who can participate

Inclusion criteria

What they're measuring

Trial details

Exclusion criteria