Neoadjuvant Treatment of Nimotuzumab With Chemotherapy or Radiotherapy in Resectable Esophageal Squamous Cell Carcinoma

Neoadjuvant Treatment of Nimotuzumab With Chemotherapy or Radiotherapy Versus Surgery Alone in Resectable Esophageal Squamous Cell Carcinoma

Esophageal cancer is one of common malignant tumors in China and esophageal squamous cell carcinoma (ESCC) is the dominant pathological type, accounting for more than 95% of all cases. One of our phase Ⅱ study introduced a combination treatment of an anti epithelial growth factor receptor (EGFR) agent, nimotuzumab, with paclitaxel and cisplatin as first-line treatment in unresectable or metastatic ESCC. The results showed that the overall response rate was 51.8% (29/56) and disease control rate was 92.9% (52/56). As a median follow-up of 24 months, the median progression-free survival for patients with metastatic disease and local advanced disease were 8.2 months and more than 23 months respectively. The overall survival for patients with metastatic disease was 13.9 months. It implied that as first-line chemotherapy, an addition of nimotuzumab to chemotherapy was a more active treatment option compared to other regimens published in previous studies. Investigations by Liang, J. and Ling, Y. also suggested that nimotuzumab in combining with radiotherapy or chemotherapy also showed anti-tumor activities and limited toxicities.

Therefore, we initiated this phase Ⅱ to Ⅲ clinical trial in which combining neoadjuvant treatments of nimotuzumab with chemotherapy or nimotuzumab with radiotherapy are compared with surgery alone for resectable stage Ⅱa to Ⅲ middle and lower thoracic esophageal squamous cell carcinoma patients. We hope to explore if these neoadjuvant combination treatments could bring survival benefit for ESCC patients.

Inclusion Criteria:

• Patients must give written informed consent signed voluntarily by patients themselves or their supervisors witted by doctors.
• Weight loss must be less than 10% in last 6 months.
• With an expected life expectancy of ≥ 12 months
• With a performance status of 0-1 on the Eastern Cooperative Oncology Group (ECOG) scale
• Patients must have histologically confirmed esophageal squamous cell carcinoma without prior treatments including surgery, chemotherapy, radiotherapy, and targeting treatment.
• With resectable disease of primary tumor in middle or lower thoracic esophagus and clinical stage Ⅱa-Ⅲ.
• With measurable or evaluable disease according to the Response Evaluation Criteria in Solid Tumors (RECIST) criteria.
• Without serious system dysfunction and could tolerate chemotherapy or radiotherapy.
• Patients must have normal marrow function with a hemoglobin (HGB) of ≥90g/L, an white blood cell (WBC) counts of ≥4.0×109/L，a neutrophil count of ≥2.0×109/L, , a platelet count of ≥100×109/L, a total bilirubin (TBil) of ≤1.5 upper normal limitation (UNL), a creatinine (Cr) of ≤ 1.5 UNL, alanine aminotransferase (ALAT) and aspartate aminotransferase (ASAT) of ≤2.5 UNL.
• Patients must have normal electrocardiogram results and no history of congestive heart failure.
• Women of childbearing age should voluntarily take contraceptive measures.
• Without drug addition
• Patients must be with good compliance and agree to accept follow-up of disease progression and adverse events.

Exclusion Criteria:

• Allergic to known drug
• Patients who have received prior treatment including chemotherapy, radiotherapy and surgery.
• With unresectable disease including any T4b or M1 disease.
• Without measurable or evaluable disease.
• With history of other tumors except for those of cervical carcinoma in situ or skin basal cell carcinoma who had been completely treated and without relapse in last 5 years.
• With serious diseases such as congestive heart failure, uncontrolled myocardial infarction and arrhythmia, liver failure and renal failure.
• With neurological or psychiatric abnormalities that affect cognitive.
• Pregnant or lactated women (premenopausal women must give urine pregnancy test before enrollment)