Serplulimab Combined With Chemotherapy in Patients With Resectable Esophageal Squamous Cell Carcinoma

Serplulimab Combined With Chemotherapy in Patients With Resectable Esophageal Squamous Cell Carcinoma

A Prospective, Single-arm, Single-center, Exploratory Study of the Safety and Efficacy of Serplulimab Combined With Chemotherapy in Patients With Resectable Esophageal Squamous Cell Carcinoma

China with high incidence of esophageal cancer, the number of new cases and deaths account for about 50% of the world every year. In the past few decades, surgery, radiotherapy, chemotherapy and other treatments were continuously improved, however, the mortality of esophageal squamous cell carcinoma patients was not significantly decreased. For patients with locally advanced esophageal cancer, direct surgery is not effective. It is difficult to achieve radical resection by surgery merely, and even if many patients receive surgery, they may eventually have tumor recurrence and poor survival rate. Therefore, it is necessary to explore effective perioperative neoadjuvant treatment to reduce the risk of postoperative recurrence and improve the postoperative survival rate of patients. According to the reports, the expression of PD-L1 in esophageal cancer was about 41.4%. Therefore, PD-1/ PD-L1 immunocheckpoint inhibitor may become a new method for the treatment of esophageal cancer. Preliminary clinical results showed that immunotherapy combined with chemoradiotherapy provided a synergies antitumor effect. Multiple clinical results showed that serplulimab provided higher overall response rate for advanced esophageal cancer. However, in patients with locally advanced esophageal cancer, the efficacy of serplulimab combined with chemotherapy for sequential radical surgery is still unclear. The purpose of this study is to observe and evaluate the efficacy and safety of silulimab combined with chemotherapy in the neoadjuvant therapy of resectable esophageal squamous cell carcinoma.

Serplulimab 4.5mg/kg, IV, Day 1; Albumin paclitaxel 260mg/m2, Day 1; carboplatin AUC=5, Day 1; Preoperative neoadjuvant therapy for 2-4 cycles, one cycle every 21 days.

In the pathological examination of resected specimens, the proportion of residual tumor cells was less than 10%.

The proportion of all study cases in which no death from any cause occurred within 2 years and 5 years after surgery

The pathological results will showed that the incision margin was negative and no residual cancer cells were found under the microscope

Inclusion Criteria: signed informed consent; patients age 18 to 75 years old primary resectable, histologically confirmed esophageal squamous cell cancer; Esophageal squamous cell carcinoma the clinical stage was IIA-IVA (according to AJCC TNM stage, 8th edition). ECOG PS 0-1. No distant metastasis, the diseases could be resectable assessed by thoracic oncologist; Exclusion Criteria: with significant cardiovascular disease; current treatment with anti-viral therapy or HBV; Female patients who are pregnant or lactating; history of malignancy within 5 years prior to screening; active or history of autoimmune disease or immune deficiency; signs of distant metastases.