Neoadjuvant ChemoRadiotherapy Followed by Immunotherapy and Surgery for Resectable Esophageal Squamous Cell Carcinoma（CRIS-2 Trial）

Comparison of Neoadjuvant Chemoradiotherapy Followed by Immunotherapy With Neoadjuvant Chemoimmunotherapy in the Treatment for Resectable Locally Advanced Esophageal Squamous Cell Carcinoma: A Multi-center, Phase II Randomized Clinical Study

Based on our previous single-arm Phase Ib study (CRIS trial, NCT06303583), we observed that neoadjuvant chemoradiotherapy followed by immunotherapy (nCRIT) significantly increased the pathological complete response (pCR) rate, achieving approximately 60% in locally advanced esophageal squamous cell carcinoma(ESCC). We plan to initiate a multicenter, prospective, randomized phase II trial designed to compare the efficacy and safety of neoadjuvant chemoimmunotherapy (nCIT) versus neoadjuvant chemoradiotherapy followed by immunotherapy (nCRIT) in treating esophageal squamous cell carcinoma. The primary study population includes patients with operable or potentially operable thoracic ESCC classified as cT3-4aN0 or T2-4aN+ based on endoscopy, enhanced chest and abdominal CT, and whole-body PET scans. Eligible participants are aged 18-75 years with an ECOG performance status of 0-1. Qualified patients will be randomly assigned in a 1:1 ratio to either the nCRIT group or the nCIT group.

Patients in the nCRIT group will receive neoadjuvant concurrent chemoradiotherapy: radiation therapy will be administered using IMRT or VMAT with involved-field irradiation at a dose of PTV 41.4 Gy/23 fractions/31 days. Chemotherapy will consist of weekly administration of paclitaxel (albumin-bound) 50 mg/m² and carboplatin (AUC=2) for five weeks, given on the days of radiotherapy. Patients who do not progress on CT and meet immunotherapy criteria will receive fixed-dose tislelizumab (200 mg IV) on days 8 and 29 after chemoradiotherapy, followed by minimally invasive esophagectomy four weeks after completing immunotherapy.

Patients in the nCIT group will receive two cycles of TC chemotherapy combined with immunotherapy, specifically paclitaxel (albumin-bound) 100 mg/m² on days 1, 8, 15 or 260mg/m² d1, carboplatin (AUC=5) on days 1, and tislelizumab (200 mg) on days 1. Minimally invasive esophagectomy will be performed 4-6 weeks after completing chemotherapy, and adjuvant immunotherapy is recommended for one year after surgery.

The primary endpoint of the study is the pathological complete response (pCR). Secondary endpoints include treatment safety, CT imaging response rate, R0 resection rate, major pathological response (MPR), 2-year event-free survival (EFS), 2-year overall survival (OS) in the intention-to-treat (ITT) population, and analysis of treatment failure reasons.

Study Overview

• Status: Recruiting
• Conditions: Esophageal Squamous Cell Carcinoma
• Intervention / Treatment: Radiation: Neoadjuvant chemoradiotherapy followed by immunotherapy; Drug: Neoadjuvant chemoimmunotherapy

• Study Type: Interventional
• Enrollment (Estimated): 92
• Phase: Phase 2

Contacts and Locations

• Study Contact: Name: Weizhen Xu; Email: xuwz@zjcc.org.cn
• Study Contact Backup: Name: Yang Yang; Phone Number: 057188128182; Email: yangyang@zjcc.org.cn

Study Locations

• China
  • Zhejiang
    • Hangzhou, Zhejiang, China
      • Recruiting
      • Zhejiang Cancer Hospital
      • Contact: YANG YANG, M.D.; Phone Number: +8657188128182; Email: yangyang@zjcc.org.cn
      • Principal Investigator: Youhua Jiang
      • Principal Investigator: Guoqin Qiu

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: Adult; Older Adult
• Accepts Healthy Volunteers: No

Description

Inclusion Criteria:

1. Age and Consent: Subjects must be male or female, aged ≥18 and ≤75 years at the time of signing the informed consent form.
2. Performance Status: Subjects must have an Eastern Cooperative Oncology Group (ECOG) performance status score of 0-1, or a Karnofsky Performance Status (KPS) score of ≥80.
3. Histological Confirmation: Histologically confirmed thoracic esophageal squamous cell carcinoma (ESCC), with the upper boundary of the lesion not exceeding the thoracic inlet.
4. Resectability: Subjects must have resectable or potentially resectable T3-4aN0 or T2-4aN+ ESCC, as per the AJCC/UICC 8th edition clinical staging (cTNM).
5. Lesion Length: The length of the esophageal lesion must be <8 cm.
6. Surgical Eligibility: Subjects must have no contraindications for surgical procedures.

7. Organ Function: Subjects must have good cardiopulmonary function and other organ functions to tolerate chemoradiotherapy and surgery.

   a. Hematology (without the use of any blood components and cell growth factor support treatment within 7 days before the start of study treatment): i. Absolute neutrophil count (ANC) ≥ 1.5×10^9/L (1500/mm^3). ii. Platelet count ≥ 100×10^9/L (100000/mm^3). iii. Hemoglobin ≥ 90 g/L. b. Renal Function: i. Calculated creatinine clearance* (CrCl) ≥ 50 mL/min.

   *CrCl will be calculated using the Cockcroft-Gault formula: CrCl (mL/min) = (140 - age) × weight (kg) × F / (SCr (mg/dL) × 72), where F = 1 for males and 0.85 for females; SCr = serum creatinine. ii. Urine protein < 2+ or 24-hour urine protein quantification < 1.0 g. c. Liver Function: i. Serum total bilirubin (TBiL) ≤ 1.5 × ULN (Upper Limit of Normal). ii. AST and ALT ≤ 2.5 × ULN; for subjects with liver metastasis, AST and ALT ≤ 5 × ULN.

   iii. Serum albumin (ALB) ≥ 28 g/L. d. Coagulation Function: International normalized ratio (INR) and activated partial thromboplastin time (APTT) ≤ 1.5 × ULN (unless the subject is receiving anticoagulant therapy and INR and APTT are within the expected therapeutic range).

   e. Cardiac Function: Left ventricular ejection fraction (LVEF) ≥ 60%.

8. Female Subjects of Childbearing Potential: Must have a negative urine or serum pregnancy test within 3 days prior to the first dose (if the urine pregnancy test is inconclusive, a serum pregnancy test will be required, and the serum result will be definitive). If a female subject of childbearing potential engages in sexual activity with an unsterilized male partner, she must use highly effective contraception from the start of screening and agree to continue using it for 120 days after the last dose of the study drug. Decisions regarding contraception discontinuation after this period should be discussed with the investigator.
9. Male Subjects with Female Partners of Childbearing Potential: Must use effective contraception from the start of screening until 120 days after the last dose of the study drug. Decisions regarding contraception discontinuation after this period should be discussed with the investigator.
10. Compliance: Subjects must be adequately informed and sign the informed consent form. They must also be willing and able to comply with scheduled visits, treatment plans, laboratory tests, and other study requirements.

Exclusion Criteria:

1. Cervical esophageal cancer (lesion located in the cervical esophagus).
2. Metastasis to cervical lymph nodes or lymph nodes around the celiac artery.
3. Invasion of the trachea or aorta.
4. Hoarseness caused by the esophageal tumor.
5. Esophageal fistula or a tendency to develop an esophageal fistula.
6. Pregnant or lactating patients.
7. Severe, poorly controlled diabetes mellitus.
8. Inability to use the stomach for esophageal replacement due to previous surgeries.
9. Previous receipt of chemoradiotherapy.
10. Allergy or contraindication to taxane drugs.
11. Inability to provide informed consent due to psychological, familial, or social reasons.
12. History of malignancies other than esophageal cancer.
13. Inability to tolerate chemoradiotherapy due to severe cardiac, pulmonary, hepatic, renal dysfunction, hematologic diseases, or cachexia; BMI < 18.5.
14. Active autoimmune disease, history of autoimmune disease (including but not limited to colitis, hepatitis, hyperthyroidism, etc.), history of immune deficiency (including positive HIV test), or other congenital or acquired immune deficiency disorders, organ transplantation, or allogeneic bone marrow transplantation.
15. Active hepatitis B (HBV DNA ≥ 2000 IU/mL or 10^4 copies/mL), active hepatitis C (positive hepatitis C antibody with HCV-RNA levels above the detection limit).
16. History of immunodeficiency; positive HIV antibody test; currently on long-term systemic corticosteroids or other immunosuppressants.
17. Severe infections within 4 weeks prior to the first dose, including but not limited to complications requiring hospitalization, sepsis, or severe pneumonia; active infections requiring systemic anti-infective therapy within 2 weeks before the first dose (excluding antiviral treatment for hepatitis B or C).
18. Known active tuberculosis (TB); suspected active TB should be ruled out by clinical examination; known active syphilis infection.
19. Receipt of live or attenuated live vaccines within 30 days prior to the first dose or planned receipt of such vaccines during the study period (inactivated vaccines are allowed).
20. History of interstitial lung disease or non-infectious pneumonitis.
21. History of myocarditis, cardiomyopathy, malignant arrhythmias; unstable angina requiring hospitalization, myocardial infarction, congestive heart failure (NYHA class 2 or above), or vascular disease (e.g., aneurysms at risk of rupture) within 12 months prior to the first dose; or other cardiac conditions that may affect the safety evaluation of the study drug (e.g., poorly controlled arrhythmias, myocardial ischemia).
22. Known psychiatric disorders, drug abuse, alcoholism, or a history of substance abuse.
23. Local or systemic diseases caused by non-malignant tumors; or diseases or symptoms secondary to tumors that may lead to high medical risk and/or uncertainty in survival assessment, such as tumor leukemoid reaction (white blood cell count > 20×10^9/L), cachexia (e.g., known weight loss of more than 10% in the 3 months prior to screening).
24. Any condition that the investigator believes may pose a risk to the subject's participation in the study, interfere with the evaluation of the study drug, or affect the interpretation of study results.

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Treatment
• Allocation: Randomized
• Interventional Model: Parallel Assignment
• Masking: None (Open Label)

Number of Arms

2

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: Neoadjuvant chemoradiotherapy followed by immunotherapy (nCRIT); Patients in the nCRIT group will receive neoadjuvant concurrent chemoradiotherapy: radiation therapy will be administered using IMRT or VMAT with involved-field irradiation at a dose of PTV 41.4 Gy/23 fractions/31 days. Chemotherapy will consist of weekly administration of paclitaxel (albumin-bound) 50 mg/m² and carboplatin (AUC 2) for five weeks, given on the days of radiotherapy. Patients who do not progress on CT and meet immunotherapy criteria will receive fixed-dose tislelizumab (200 mg IV) on days 8 and 29 after chemoradiotherapy, followed by minimally invasive esophagectomy four weeks after completing immunotherapy.	Radiation: Neoadjuvant chemoradiotherapy followed by immunotherapy; Patients in the nCRIT group will receive neoadjuvant concurrent chemoradiotherapy: radiation therapy will be administered using IMRT or VMAT with involved-field irradiation at a dose of PTV 41.4 Gy/23 fractions/31 days. Chemotherapy will consist of weekly administration of paclitaxel (albumin-bound) 50 mg/m² and carboplatin (AUC 2) for five weeks, given on the days of radiotherapy. Patients who do not progress on CT and meet immunotherapy criteria will receive fixed-dose tislelizumab (200 mg IV) on days 8 and 29 after chemoradiotherapy, followed by minimally invasive esophagectomy four weeks after completing immunotherapy.
Active Comparator: Neoadjuvant chemoimmunotherapy (nCIT); Patients in the nCIT group will receive two cycles of TC chemotherapy combined with immunotherapy, specifically paclitaxel (albumin-bound) 100 mg/m² on days 1, 8, 15 or 260mg/m² d1, carboplatin (AUC=5) on days 1, and tislelizumab (200 mg) on days 1. Minimally invasive esophagectomy will be performed 4-6 weeks after completing chemotherapy, and adjuvant immunotherapy is recommended for one year after surgery.	Drug: Neoadjuvant chemoimmunotherapy; Patients in the nCIT group will receive two cycles of TC chemotherapy combined with immunotherapy, specifically paclitaxel (albumin-bound) 100 mg/m² on days 1, 8, 15 or 260mg/m² d1, carboplatin (AUC=5) on days 1, and tislelizumab (200 mg) on days 1. Minimally invasive esophagectomy will be performed 4-6 weeks after completing chemotherapy, and adjuvant immunotherapy is recommended for one year after surgery.

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
pCR	Pathologic complete response (pCR) was defined as the absence of cancer cells in both the esophagus and lymph nodes following neoadjuvant chemoradiotherapy	1 months after surgery

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
R0 resection rate	R0 resection rate refers to the proportion of patients who undergo a surgical procedure to remove a tumor and achieve a complete resection with no residual microscopic disease.	1 months after surgery
MPR	Major pathological response (MPR) is a measure of neoadjuvant immunotherapy efficacy. It is defined as having no more than 10% residual viable tumor cells by routine hematoxylin and eosin (H&E) staining after therapy.	1 months after surgery
2-year EFS	Event-Free Survival (EFS) refers to the length of time after the treatment starts during which a patient remains free from certain negative events, such as disease progression, recurrence, or death from any cause.	2 years after randomization
2-year OS	Time from randomization to any death	2 years after randomization
Adverse Events	any undesirable experiences or side effects that occur in a patient during the trial	2 years after randomization
HRQoL	Health-Related Quality of Life (HRQoL) refers to a patient's overall well-being, encompassing physical, mental, and social aspects of health as they are affected by a medical condition or its treatment.	2 years after randomization

Collaborators and Investigators

• Sponsor: Zhejiang Cancer Hospital

Publications and helpful links

General Publications

• van Hagen P, Hulshof MC, van Lanschot JJ, Steyerberg EW, van Berge Henegouwen MI, Wijnhoven BP, Richel DJ, Nieuwenhuijzen GA, Hospers GA, Bonenkamp JJ, Cuesta MA, Blaisse RJ, Busch OR, ten Kate FJ, Creemers GJ, Punt CJ, Plukker JT, Verheul HM, Spillenaar Bilgen EJ, van Dekken H, van der Sangen MJ, Rozema T, Biermann K, Beukema JC, Piet AH, van Rij CM, Reinders JG, Tilanus HW, van der Gaast A; CROSS Group. Preoperative chemoradiotherapy for esophageal or junctional cancer. N Engl J Med. 2012 May 31;366(22):2074-84. doi: 10.1056/NEJMoa1112088.
• Izutsu M, Kobayashi S, Higuchi N, Yuasa Y, Ogawa K, Narimatsu Y, Nakano K, Hiramatsu K, Shen Y, Azemoto S. [CT angiography of the liver]. Nihon Igaku Hoshasen Gakkai Zasshi. 1993 Jan 25;53(1):101-3. Japanese.
• Qin J, Xue L, Hao A, Guo X, Jiang T, Ni Y, Liu S, Chen Y, Jiang H, Zhang C, Kang M, Lin J, Li H, Li C, Tian H, Li L, Fu J, Zhang Y, Ma J, Wang X, Fu M, Yang H, Yang Z, Han Y, Chen L, Tan L, Dai T, Liao Y, Zhang W, Li B, Chen Q, Guo S, Qi Y, Wei L, Li Z, Tian Z, Kang X, Zhang R, Li Y, Wang Z, Chen X, Hou Z, Zheng R, Zhu W, He J, Li Y. Neoadjuvant chemotherapy with or without camrelizumab in resectable esophageal squamous cell carcinoma: the randomized phase 3 ESCORT-NEO/NCCES01 trial. Nat Med. 2024 Sep;30(9):2549-2557. doi: 10.1038/s41591-024-03064-w. Epub 2024 Jul 2.

Study record dates

Study Major Dates

• Study Start (Actual): August 1, 2024
• Primary Completion (Estimated): August 1, 2026
• Study Completion (Estimated): August 1, 2027

Study Registration Dates

• First Submitted: July 12, 2024
• First Submitted That Met QC Criteria: July 13, 2024
• First Posted (Actual): July 19, 2024

Study Record Updates

• Last Update Posted (Estimated): August 29, 2025
• Last Update Submitted That Met QC Criteria: August 23, 2025
• Last Verified: August 1, 2025

More Information

Terms related to this study

• Additional Relevant MeSH Terms: Neoplasms by Site; Neoplasms; Neoplasms by Histologic Type; Gastrointestinal Neoplasms; Digestive System Neoplasms; Digestive System Diseases; Gastrointestinal Diseases; Head and Neck Neoplasms; Neoplasms, Glandular and Epithelial; Esophageal Diseases; Carcinoma; Neoplasms, Squamous Cell; Carcinoma, Squamous Cell; Esophageal Neoplasms; Esophageal Squamous Cell Carcinoma; Physiological Effects of Drugs; Immunologic Factors; Immunomodulating Agents
• Other Study ID Numbers: IIT-2024-238

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: UNDECIDED

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No
• product manufactured in and exported from the U.S.: No