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Effect of PRM1201 Combined With Adjuvant Chemotherapy on Preventing Recurrence and Metastasis of Stage III Colon Cancer: A Randomized, Double-Blind, Placebo-Controlled Clinical Trial.

Jia R, Liu N, Cai G, Zhang Y, Xiao H, Zhou L, Ji Q, Zhao L, Zeng P, Liu H, Huo J, Yue X, Zhang Y, Wu C, Sun X, Feng Y, Liu H, Liu H, Han Z, Lai Y, Zhang Y, Han G, Gong H, Wang Y, Li Q.

Front Oncol.

2021

11

618793.

10.3389/fonc.2021.618793.

33747930

http://www.ncbi.nlm.nih.gov/pubmed/33747930

Chinese herbal medicine; cancer recurrence and metastasis; clinical trial; colon cancer; disease-free survival

한약 치료; 암 재발 및 전이; 임상시험; 대장암; 무병 생존기간

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Background: Chemotherapy is the standard adjuvant treatment for colon cancer. Chinese herbal formula PRM1201 improves the efficacy of chemotherapy when used in combination with Cetuximab or Bevacizumab in patients with metastatic colorectal cancer. This study aims to explore the benefits of treatment with chemotherapy plus PRM1201 in the postoperative adjuvant setting.

Methods: In this parallel-group study, patients who had undergone curative resection for stage III colon cancer were randomly assigned to receive adjuvant chemotherapy (FOLFOX q2w for 6 months, or CapeOx q3w for 6 months) plus PRM1201 (chemo+PRM1201 group) or adjuvant chemotherapy plus placebo (chemo+placebo group). The primary endpoint was disease-free survival (DFS), and the secondary endpoints were quality of life (QOL) and toxicity.

Results: A total of 370 patients were randomly assigned to chemotherapy plus PRM1201 group (n = 184) and chemotherapy plus placebo group (n = 186). Up to October 30, 2019, 96 events of recurrence, metastasis, or death had been reported, of which 38 events were in the group of chemotherapy plus PRM1201 and 58 events in the chemo+placebo group. The 3-year DFS rate was 77.1 and 68.6% in the chemo+PRM1201 and chemo+placebo group, respectively (hazard ratio [HR], 0.63; 95% CI, 0.42 to 0.94). The QOL of patients in the chemo+PRM1201 group were significantly improved in terms of global quality of life, physical functioning, role functioning, emotional functioning, fatigue, and appetite loss. The incidence of grade 3 or 4 treatment-related adverse event (TRAEs) were similar between the two arms.

Conclusions: Chemotherapy in combination with PRM1201 improved the adjuvant treatment of colon cancer. PRM1201 can be recommended as an effective option in clinical practice.

Clinical trial registration: Chinese Clinical Trials Registry, identifier ChiCTR-IOR-16007719.

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