• Jiawei Hu, Zixuan Luo, Junlong Song, Deguang Kong, Zhiyu Li, Chuang Chen, and Shengrong Sun.
• Department of Breast and Thyroid Surgery, Renmin Hospital of Wuhan University, Wuhan, PR China.
• Medicine (Baltimore). 2024 Nov 29; 103 (48): e40775e40775.

AbstractC-reactive protein (CRP) is a nonspecific biomarker for systemic inflammatory response and is linked to the prognosis of breast cancer (BC); however, few studies have investigated the correlation between CRP and the effectiveness of neoadjuvant chemotherapy treatment for BC. We recruited 177 patients with BC who underwent neoadjuvant chemotherapy in our clinical trial. the median CRP level (0.24 mg/L), patients were categorized into high and low groups. We examined the relationship between CRP levels and various clinicopathological factors, including pathological complete response (pCR), using the chi-square test or Fisher exact test. Furthermore, we evaluated the predictive capacity of CRP for different molecular subtypes by constructing receiver operating characteristic curves. To identify the independent variables associated with pCR, we conducted logistic regression multivariate analysis. No association was found between C-reactive levels at baseline and pCR rates. CRP level was significantly associated with higher body mass index, and the high CRP group had more overweight patients (47.06% vs. 16.30%, P < .001). In hormone receptor-positive patients, the high CRP group demonstrated a significantly higher pCR rate (OR = 4.115, 95% CI: 1.481-11.36, P = .009). The areas under the curve was 0.670 (95% CI: 0.550-0.792, P < .001). Multivariate logistic analysis showed that the CRP level was a significant independent predictor of pCR (OR = 5.882, 95% CI: 1.470-28.57, P = .017). High CRP levels were found to be associated with a higher pCR rate, indicating their independent predictive value in determining the efficacy of neoadjuvant chemotherapy in hormone receptor-positive BC patients.Copyright © 2024 the Author(s). Published by Wolters Kluwer Health, Inc.

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