Factors related to the outcomes of adjuvant capecitabin monotherapy for high-risk stage II colon cancer

Nguyen Thi Thu Huong, Hoang Manh Thang

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Abstract

The study aimed to evaluate factors related to the outcome of adjuvant capecitabin monotherapy for high-risk stage II colon cancer. We conducted a retrospective study on 96 patients with high-risk stage II colon cancer who underwent radical surgery and adjuvant treatment with capecitabine at K Hospital from 2016 to 2019. The median follow-up time was 60.6 months, the 5-year DFS and OS rates were 89.5% and 91.1%, respectively. Survival decreased gradually according to stage IIA, IIB, IIC (5 years DFS rates were 93.1%, 89.2%, 66.7%, respectively; p = 0.115) (5 years OS rates were 92.1%, 93.6% and 66.7%, respectively; p = 0.05). 5 years DFS, OS rates were worse in the group with vascular and nerve invasion (DFS: 66.7% vs 91%, p = 0.047; OS: 66.7% vs 92.7%, p = 0.014). The more high-risk factors, the worse the prognosis, DFS and OS according to 0, 1, 2 high risk factors were 100%, 95.8%, 71.4% and 100%, 94.7%, 71.4% (p < 0.05). Multivariate analysis showed that stage IIC and neurovascular invasion were 2 independent prognostic factors for OS outcome.

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References

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