Comparing Hypofractionated Concurrent Chemoradiotherapy Versus Conventional Fractionated Concurrent Chemoradiotherapy Following Induction Chemo-immunotherapy in Patients With Unresectable Locally Advanced Esophageal Squamous Cell Carcinoma: A Prospective, Open-Label, Randomized Phase II Clinical Trial
试验速览
- 阶段
- 2 期
- 状态
- 招募中
- 发起方
- 入组人数
- 134
- 试验地点
- 1
- 主要终点
- Progression-free survival rate
研究概览
简要总结
This is a prospective, open-label, randomized phase II clinical trial designed to compare the efficacy and toxicity of hypofractionated concurrent chemoradiotherapy versus conventional fractionated concurrent chemoradiotherapy following induction chemoimmunotherapy in patients with unresectable locally advanced esophageal squamous cell carcinoma.
详细描述
This is a prospective, open-label, randomized phase II clinical trial designed to compare the efficacy and toxicity of hypofractionated concurrent chemoradiotherapy versus conventional fractionated concurrent chemoradiotherapy following induction chemoimmunotherapy in patients with unresectable locally advanced esophageal squamous cell carcinoma. In this study, patients will receive induction therapy with albumin-bound paclitaxel and cisplatin combined with toripalimab. After induction therapy, they will be randomly assigned to receive either definitive hypofractionated concurrent chemoradiotherapy or conventional fractionated concurrent chemoradiotherapy. Following the completion of treatment, patients will undergo regular follow-up to assess efficacy and safety.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Treatment
- 盲法
- None
入排标准
- 年龄范围
- 18 Years 至 80 Years（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Pathologically or cytologically confirmed diagnosis of esophageal squamous cell carcinoma;
- •Evaluated as unresectable locally advanced esophageal squamous cell carcinoma by endoscopic ultrasound, imaging studies including esophagography, CT of the neck, chest, and upper abdomen, MRI of the neck and chest, whole-body bone scan, or PET/CT, with staging in the range of II-IVB (stage IVB limited to celiac lymph node or supraclavicular lymph node metastasis);
- •Male or female aged 18 to 80 years;
- •Eligible for oral drug therapy;
- •No prior chemotherapy, radiotherapy, surgery, targeted therapy, or immunotherapy;
- •Tumor sample requirement: Must provide adequate unstained, archived tumor tissue samples for analysis;
- •Expected survival ≥12 weeks;
- •Eastern Cooperative Oncology Group (ECOG) performance status (PS) score of 0 or 1;
- •Postmenopausal women, or women with a negative urine or serum pregnancy test within 14 days before the study drug administration;
- •Women must not be breastfeeding;
- •Organ and bone marrow function must meet the following criteria: Forced expiratory volume in 1 second (FEV1) ≥1000 mL; Absolute neutrophil count ≥1.5 × 10^9/L; Platelets ≥100 × 10^9/L; Hemoglobin ≥90 g/L; Estimated glomerular filtration rate (eGFR) ≥50 mL/min based on the Cockcroft-Gault formula (Cockcroft and Gault, 1976); Serum bilirubin ≤1.5 × the upper limit of normal (ULN); Alanine aminotransferase (ALT) and aspartate aminotransferase (AST) ≤2.5 × ULN;
- •Signed and dated informed consent must be provided before participation in any study procedures.
排除标准
- •Exclusion Criteria for Induction Treatment:
- •Participation in another clinical trial, unless it is an observational (non-interventional) study;
- •Use of immunosuppressive drugs within 28 days prior to the first infusion of Toripalimab, excluding physiological doses of intranasal inhaled corticosteroids, prednisone ≤10 mg/day, or equivalent systemic corticosteroids;
- •Prior use of any anti-PD-1 or anti-PD-L1 antibody;
- •Major surgery within 4 weeks prior to entering the study (excluding vascular access procedures);
- •A history of autoimmune disease within the past 2 years;
- •Active or a history of inflammatory bowel disease (e.g., Crohn's disease, ulcerative colitis);
- •History of primary immunodeficiency;
- •History of organ transplantation requiring immunosuppressive treatment;
- •Uncontrolled complications, including but not limited to persistent or active infections, symptomatic congestive heart failure, poorly controlled hypertension, unstable angina, arrhythmias, active peptic ulcer disease or gastritis, active bleeding disorders, including any known HBsAg-positive patients with HBV DNA >500 IU/ml, hepatitis C, or HIV, or any psychiatric or social conditions that would impair the ability to comply with study requirements or harm the patient's ability to provide written informed consent;
- •Receipt of a live attenuated vaccine within 30 days prior to study initiation or within 30 days after receiving Toripalimab;
- •History of another primary malignancy within 5 years prior to the initiation of Toripalimab treatment, excluding adequately treated skin basal cell carcinoma, squamous cell carcinoma, or carcinoma in situ of the cervix;
- •Pregnancy, breastfeeding women, or men and women of reproductive potential who are not using effective contraception.
- •Exclusion Criteria for Concurrent Chemoradiotherapy After Induction Treatment:
- •Development of distant metastasis (excluding celiac lymph node or supraclavicular lymph node metastasis);
- •Development of local regional progression, with the radiation oncologist assessing that the patient cannot receive definitive chemoradiotherapy due to normal tissue dose limitations;
- •PS score of 2-4;
- •Any of the following organ and bone marrow dysfunction criteria: FEV1 <1000 mL; absolute neutrophil count <1.5 × 10^9/L; platelets <100 × 10^9/L; hemoglobin <90 g/L; serum creatinine clearance <50 mL/min according to the Cockcroft-Gault formula (Cockcroft & Gault, 1976); serum bilirubin >1.5 times the upper limit of normal (ULN); ALT and AST >2.5 times ULN.
研究组 & 干预措施
Hypofractionated CCRT group
All patients will receive hypofractionated radiotherapy once daily, five days per week, followed by a boost. Three weeks after the completion of the first phase of hypofractionated radiotherapy, tumor response and cardiopulmonary function will be evaluated. For patients who achieve a partial response, have no deep esophageal ulcers on endoscopy, and have cardiopulmonary function tolerating the radiotherapy boost, a second phase of radiotherapy will be planned using a new CT simulation and radiotherapy design.
First Phase of Radiotherapy: Total dose of 2500 cGy in 5 fractions (500 cGy per fraction). Second Phase of Radiotherapy: Total dose of 2500 cGy in 10 fractions (250 cGy per fraction) The interval between the two phases of radiotherapy will be 28 days.
干预措施: Induction chemoimmunotherapy (Drug)
Hypofractionated CCRT group
All patients will receive hypofractionated radiotherapy once daily, five days per week, followed by a boost. Three weeks after the completion of the first phase of hypofractionated radiotherapy, tumor response and cardiopulmonary function will be evaluated. For patients who achieve a partial response, have no deep esophageal ulcers on endoscopy, and have cardiopulmonary function tolerating the radiotherapy boost, a second phase of radiotherapy will be planned using a new CT simulation and radiotherapy design.
First Phase of Radiotherapy: Total dose of 2500 cGy in 5 fractions (500 cGy per fraction). Second Phase of Radiotherapy: Total dose of 2500 cGy in 10 fractions (250 cGy per fraction) The interval between the two phases of radiotherapy will be 28 days.
干预措施: Hypofractionated Radiation Therapy (Radiation)
Hypofractionated CCRT group
All patients will receive hypofractionated radiotherapy once daily, five days per week, followed by a boost. Three weeks after the completion of the first phase of hypofractionated radiotherapy, tumor response and cardiopulmonary function will be evaluated. For patients who achieve a partial response, have no deep esophageal ulcers on endoscopy, and have cardiopulmonary function tolerating the radiotherapy boost, a second phase of radiotherapy will be planned using a new CT simulation and radiotherapy design.
First Phase of Radiotherapy: Total dose of 2500 cGy in 5 fractions (500 cGy per fraction). Second Phase of Radiotherapy: Total dose of 2500 cGy in 10 fractions (250 cGy per fraction) The interval between the two phases of radiotherapy will be 28 days.
干预措施: Concurrent Chemotherapy (Drug)
Conventional fractionated CCRT group
Patients in this group will receive a total dose of 5000 cGy in 25 fractions, with 200 cGy per fraction.
干预措施: Induction chemoimmunotherapy (Drug)
Conventional fractionated CCRT group
Patients in this group will receive a total dose of 5000 cGy in 25 fractions, with 200 cGy per fraction.
干预措施: Conventional Fractionated Radiation Therapy (Radiation)
Conventional fractionated CCRT group
Patients in this group will receive a total dose of 5000 cGy in 25 fractions, with 200 cGy per fraction.
干预措施: Concurrent Chemotherapy (Drug)
结局指标
主要结局
Progression-free survival rate
时间窗: 2 years
The proportion of patients who remain free from disease progression during a defined period after treatment initiation.
次要结局
- Distant metastasis-free survival rate(2 years)
- Clinical response rate(2 months after radiotherapy)
- Rate of grade 3 or higher toxicities(1 year after therapy)
- Locoregional recurrence-free survival rate(2 years)
- Overall survival rate(2 years)
研究者
Hui Liu
Professor
Sun Yat-sen University