Nimotuzumab Concurrent With Chemoradiotherapy for Patients With Locally Advanced Unresectable Esophageal Squamous Cell Carcinoma After Failure of Chemotherapy：A Phase II Study
Patients diagnosed with locally advanced esophageal squamous cell carcinoma (ESCC) who failed to induction chemo(immuno)therapy had poor prognosis. Radiotherpy was an important and effective treatment in treating ESCC. The present study is a one-arm trial that seeks to evaluate the efficacy in patients with unresectable ESCC. The study objectives include R0 resection rate, complete pathological response and treatment toxicity, etc. Nimotuzumab is a recombinant humanized monoclonal antibody against EGFR. Its efficacy and safety in patients with esophageal cancer have been confirmed by many studies. The current prospective phase II study aimed to evaluate the efficacy and safety of a combination regimen comprising chemotherapy with nimotuzumab and S-1 and concurrent radiotherapy for patients who are not sensitive to induction chemo(immuno)therapy.
• Histologically confirmed esophageal squamous cell carcinoma. Tumor response was evaluated as stable or locoregionally progresive disease or assessed by surgeons being unresectable (without distant metastasis) after induction chemo(immuno)therapy.
• Cycles of induction chemo(immuno)therapy was 2-4.
• KPS score ≥70.
• Main organs and bone marrow function are normal: routine blood tests: hemoglobin (Hb) ≥100g/L ; absolute neutrophil count (NEUT)≥1.5×109/L; platelets (PLT) ≥100×109/L; white blood cell (WBC)≥3.5×109/L,biochemical examination: alanine aminotransferase (ALT) and aspartate aminotransferase (AST) ≤1.5×UNL; serum total bilirubin (TBIL) ≤1.5×UNL; serum creatinine ( Cr) 1.0×1.5UNL, and BUN≤1.0×UNL;