A Prospective, Single-arm, Phase II Clinical Trial of Surufatinib in Combination With Neoadjuvant Chemo-immunotherapy and Concurrent Chemoradiotherapy for Patients With Unresectable Locally Advanced Esophageal Squamous Cell Carcinoma
The combination of surufatinib with neoadjuvant chemo-immunotherapy and definitive concurrent chemoradiotherapy represents a promising new therapeutic strategy that may further improve the prognosis of patients with unresectable locally advanced esophageal squamous cell carcinoma (ESCC). Therefore, we propose to conduct a prospective, single-arm, phase II clinical trial to evaluate the efficacy and safety of this regimen in patients with unresectable, locally advanced ESCC.
• Histologically or cytologically confirmed diagnosis of esophageal squamous cell carcinoma (ESCC).
• Locally advanced, unresectable esophageal cancer assessed by endoscopic ultrasound and imaging studies, including esophagography, contrast-enhanced CT scans of the lower neck, chest, and upper abdomen, MRI of the lower neck and chest, whole-body bone scintigraphy, or PET/CT; staged as T2-4, N0-3, M0-1 (M1 limited to supraclavicular lymph node metastasis).
• Male or female patients aged 18 to 80 years.
• No prior chemotherapy, radiotherapy, surgery, targeted therapy, or immunotherapy.
• Expected life expectancy of at least 12 weeks.
• Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1.
• Adequate organ and bone marrow function defined as: Forced expiratory volume in one second (FEV1) ≥ 1000 mL; Absolute neutrophil count (ANC) ≥ 1.5 × 10⁹/L; Platelet count ≥ 100 × 10⁹/L; Hemoglobin ≥ 90 g/L; Creatinine clearance ≥ 50 mL/min calculated by the Cockcroft-Gault formula (Cockcroft and Gault, 1976); Total bilirubin ≤ 1.5 × upper limit of normal (ULN); Alanine aminotransferase (ALT) and aspartate aminotransferase (AST) ≤ 2.5 × ULN.
• Signed and dated informed consent form must be obtained prior to any study-related procedures.