A Prospective, Single-center, Multi-cohort Study of Envolimab Monotherapy or Envafolimab in Combination With CAPEOX as Neoadjuvant Therapy for Locally Advanced Colorectal Cancer.
试验速览
- 阶段
- 2 期
- 状态
- 招募中
- 发起方
- 入组人数
- 55
- 试验地点
- 1
- 主要终点
- Rate of pCR
研究概览
简要总结
There exists substantial evidence suggesting that patients diagnosed with MSI-H/dMMR colorectal cancer can derive benefits from immunotherapy in the management of advanced colorectal cancer. In cases of locally advanced colorectal cancer exhibiting microsatellite instability (dMMR/MSI-H), patients exhibit low responsiveness to neoadjuvant chemotherapy, resulting in minimal rates of complete tumor remission and downstaging. Nevertheless, initial exploratory studies, characterized by modest sample sizes, reveal a favorable therapeutic effect of neoadjuvant immunotherapy in this particular patient population. Envafolimab monoclonal antibody, the first PD-L1 antibody developed and manufactured in China, possesses noteworthy practical and societal value in the context of exploratory clinical research on neoadjuvant immunotherapy for locally advanced MSI-H/dMMR colorectal cancer patients. The objective of this study is to evaluate the safety and efficacy of envafolimab monoclonal antibody (PD-L1) as neoadjuvant therapy for locally advanced MSI-H/dMMR colorectal cancer through a prospective, multi-cohort phase II clinical trial. Additionally, this study aims to investigate the effectiveness and safety of envafolimab monoclonal antibody in combination with CAPEOX as a neoadjuvant treatment regimen for locally advanced pMMR colorectal cancer.
研究设计
- 研究类型
- Interventional
- 分配方式
- Non Randomized
- 干预模型
- Parallel
- 主要目的
- Treatment
- 盲法
- None
入排标准
- 年龄范围
- 18 Years 至 75 Years（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Pathological confirmed rectal cancer
- •Clinical stage T3-4 or T any N1
- •With or without MRF positivity, with or without EMVI positivity
- •R0 resection is estimated
- •Age ranged from 18 to 70
排除标准
- •Clinical stage T1-2 N0
- •Distance metastasis
- •Multiple primary tumor
研究组 & 干预措施
Envafolimab Group
Patients diagnosed with colon cancer, with T stage determined as 3-4 based on enhanced MR imaging, or with any T stage accompanied by imaging findings suggestive of lymph node metastasis, and excluding patients with distant metastasis, who are confirmed to have microsatellite instability-high (MSI-H)/deficient mismatch repair (dMMR) colon cancer, will be enrolled in Group A
干预措施: Envafolimab (Drug)
Envafolimab+CAPEOX Group
Patients diagnosed with colon adenocarcinoma, with T stage determined as 3-4 based on enhanced MR imaging, or with any T stage accompanied by imaging findings suggestive of lymph node metastasis, and excluding patients with distant metastasis, who are confirmed to have microsatellite stable (MSS)/proficient mismatch repair (pMMR) colon cancer, will be enrolled in Group B.
干预措施: Envafolimab (Drug)
Envafolimab+CAPEOX Group
Patients diagnosed with colon adenocarcinoma, with T stage determined as 3-4 based on enhanced MR imaging, or with any T stage accompanied by imaging findings suggestive of lymph node metastasis, and excluding patients with distant metastasis, who are confirmed to have microsatellite stable (MSS)/proficient mismatch repair (pMMR) colon cancer, will be enrolled in Group B.
干预措施: CAPEOX (Drug)
结局指标
主要结局
Rate of pCR
时间窗: Time Frame: One week after surgery
rate of pathological complete remission
次要结局
- DFS(3 years)
研究者
Zhen-Hai Lu
Prof.
Sun Yat-sen University