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Fraction Dose Escalation of Split-course Hypofractionated Concurrent Chemoradiotherapy Following Induction Chemo-immunotherapy in Unresectable Locally Advanced Esophageal Squamous Carcinoma: a Phase I Study.

Phase 1
Recruiting
Conditions
Esophageal Squamous Cell Carcinoma
Interventions
Radiation: Split-course hypo-CCRT
Drug: Induction chemo-immunotherapy
Drug: Concurrent chemotherapy
Registration Number
NCT06020885
Lead Sponsor
Sun Yat-sen University
Brief Summary

This Phase I study is to determine the maximum tolerated fraction dose (MTD) for split-course hypo-CCRT following induction chemo-immunotherapy in LA-ESCC patients, to clarify the dosimetric advantage of split-course hypo-CCRT, and to investigate the treatment-related toxicities and quality of life of the new regimen.

Detailed Description

This Phase I study is to determine the maximum tolerated fraction dose (MTD) for split-course hypo-CCRT following induction chemo-immunotherapy in LA-ESCC patients, to clarify the dosimetric advantage of split-course hypo-CCRT, and to investigate the treatment-related toxicities and quality of life of the new regimen.

Recruitment & Eligibility

Status
RECRUITING
Sex
All
Target Recruitment
18
Inclusion Criteria
  • histologically confirmed ESCC
  • II-IVB stages (IVB stage only with metastatic celiac or supraclavicular lymph nodes) based on the TNM staging system proposed by the International Union Against Cancer (UICC 2002)
  • Eastern Cooperative Oncology Group (ECOG) performance status score 0-1
  • Charlson Comorbidity Index score≤4
  • oral medication can be administered despite esophageal obstruction
  • adequate hematological, renal and hepatic functions
Exclusion Criteria
  • contraindication for radiotherapy or chemotherapy
  • prior malignancies, except for curable non-melanoma skin cancer or cervical carcinoma in situ
  • distant metastasis, except for celiac or supraclavicular lymph nodes metastases

Study & Design

Study Type
INTERVENTIONAL
Study Design
SINGLE_GROUP
Arm && Interventions
GroupInterventionDescription
Experiment groupSplit-course hypo-CCRTThis is a prospective, single-arm, phase 1 trial. A total of 18 unresectable LA-ESCC patients are required to be enrolled. 1. Induction chemo-immunotherapy All patients receive 2-3 cycles of Abraxane 260mg/m2 d1+cisplatin 60mg/m2 d1+Toripalimab 240mg d1. 2. Hypo-CCRT Evaluation will be performed three weeks after the induction chemo-immunotherapy, LA-ESCC patients without disease progression will continue the split-course hypo-CCRT treatment. Split-course hypo-CCRT is administered at the following three dose levels: * Level 1: DT 3000cGy/10 daily fractions/300cGy in the first course, DT 2000cGy/10 daily fractions/200cGy in the second course; * Level 2: DT 2800cGy/7 daily fractions/400cGy in the first course, DT 2200cGy/10 daily fractions/220cGy in the second course; * Level 3: DT 2500cGy/5 daily fractions/500cGy in the first course, DT 2500cGy10 daily fractions/250cGy in the second course.
Experiment groupInduction chemo-immunotherapyThis is a prospective, single-arm, phase 1 trial. A total of 18 unresectable LA-ESCC patients are required to be enrolled. 1. Induction chemo-immunotherapy All patients receive 2-3 cycles of Abraxane 260mg/m2 d1+cisplatin 60mg/m2 d1+Toripalimab 240mg d1. 2. Hypo-CCRT Evaluation will be performed three weeks after the induction chemo-immunotherapy, LA-ESCC patients without disease progression will continue the split-course hypo-CCRT treatment. Split-course hypo-CCRT is administered at the following three dose levels: * Level 1: DT 3000cGy/10 daily fractions/300cGy in the first course, DT 2000cGy/10 daily fractions/200cGy in the second course; * Level 2: DT 2800cGy/7 daily fractions/400cGy in the first course, DT 2200cGy/10 daily fractions/220cGy in the second course; * Level 3: DT 2500cGy/5 daily fractions/500cGy in the first course, DT 2500cGy10 daily fractions/250cGy in the second course.
Experiment groupConcurrent chemotherapyThis is a prospective, single-arm, phase 1 trial. A total of 18 unresectable LA-ESCC patients are required to be enrolled. 1. Induction chemo-immunotherapy All patients receive 2-3 cycles of Abraxane 260mg/m2 d1+cisplatin 60mg/m2 d1+Toripalimab 240mg d1. 2. Hypo-CCRT Evaluation will be performed three weeks after the induction chemo-immunotherapy, LA-ESCC patients without disease progression will continue the split-course hypo-CCRT treatment. Split-course hypo-CCRT is administered at the following three dose levels: * Level 1: DT 3000cGy/10 daily fractions/300cGy in the first course, DT 2000cGy/10 daily fractions/200cGy in the second course; * Level 2: DT 2800cGy/7 daily fractions/400cGy in the first course, DT 2200cGy/10 daily fractions/220cGy in the second course; * Level 3: DT 2500cGy/5 daily fractions/500cGy in the first course, DT 2500cGy10 daily fractions/250cGy in the second course.
Primary Outcome Measures
NameTimeMethod
Tolerated fraction dose6 months

Define the maximum tolerated fraction dose (MTD) for split-course hypo-CCRT following induction chemo-immunotherapy.

Secondary Outcome Measures
NameTimeMethod
2-year overall survival rate2-year
2-year progression-free survival rate2-year
Clinical response rate2 months after radiotherapy

The percentage of patients who had partial remission or complete remission after therapy

The rate of grade 3 or 4 toxicities according to CTCAE5.01 year after therapy

the percentage of patients who develop grade 3 or 4 toxicities

Trial Locations

Locations (1)

Sun yat-sen University Cancer Center

🇨🇳

Guangzhou, Guangdong, China

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