期刊
INTERNATIONAL JOURNAL OF CANCER
卷 151, 期 1, 页码 128-137出版社
WILEY
DOI: 10.1002/ijc.33976
关键词
camrelizumab; esophageal squamous cell carcinoma; locally advanced; neoadjuvant chemoimmunotherapy; resectable
类别
资金
- Jiangsu Hengrui Pharmaceuticals Co., Ltd
- BGI Genomics
This study assessed the use of neoadjuvant camrelizumab plus chemotherapy in patients with resectable esophageal squamous cell carcinoma. The results showed that this treatment approach had promising efficacy and acceptable toxicity, providing an effective option for patients.
Optimal treatment for resectable esophageal squamous cell carcinoma (ESCC) is controversial, especially in the context of potential benefit of combining PD-1 blockade with neoadjuvant therapy. This phase 2 study aimed to assess neoadjuvant camrelizumab plus chemotherapy in this population. Patients (clinical stage II-IVA) received two cycles of neoadjuvant chemoimmunotherapy (NIC) with camrelizumab (200 mg on day 1) plus nab-paclitaxel (260 mg/m(2) in total on day 1 and day 8) and cisplatin (75 mg/m(2) in total on days 1-3) of each 21-day cycle. Surgery was performed approximately 6 weeks after completion of NIC. Primary endpoint was complete pathologic response (CPR) rate in primary tumor. Secondary endpoints were objective response rate (ORR) per RECIST v1.1, 2-year progression-free survival (PFS) rate after surgery, PFS, overall survival (OS) and safety during NIC and perioperative period. Between 17 January 2020 and 8 December 2020, 56 patients were enrolled, and 51 received esophagectomy. Data cutoff date was 25 August 2021. The CPR rate was 35.3% (95% CI, 21.7%-48.9%). NIC had an ORR of 66.7% (95% CI, 40.0%-70.4%) and treatment-related adverse events (TRAEs) of low severity (grade 1-2, 75.0%; grade 3, 10.7%; grade 4-5, no). No perioperative mortality occurred. Three (5.9%) patients had tumor recurrence and one (2.0%) patient died. The 2-year PFS rate, median PFS and median OS had not been reached yet. Camrelizumab plus neoadjuvant chemotherapy in resectable ESCC demonstrates promising efficacy with acceptable toxicity, providing a feasible and effective option. Study is ongoing for long-term survival analyses.
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