Predictive impact of clinical factors on chemosensitivity in advanced high-grade serous ovarian carcinoma according to chemotherapy response score

  • 0Department of Obstetrics & Gynecology, Chungnam National University Hospital, Daejeon, Republic of Korea.

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Summary

This summary is machine-generated.

Neoadjuvant chemotherapy (NAC) response in advanced ovarian cancer can be predicted by clinical factors. Germline BRCA1/2 mutations indicate a better response (CRS3), while distant metastases suggest a poorer response (CRS1).

Area Of Science

  • Gynecology
  • Oncology
  • Pathology

Background

  • Neoadjuvant chemotherapy (NAC) is increasingly used for advanced high-grade serous ovarian carcinoma (HGSOC).
  • Platinum resistance is a known complication of NAC in HGSOC.
  • Identifying predictive factors for NAC response is crucial for patient selection.

Purpose Of The Study

  • To evaluate the predictive impact of clinical factors on chemotherapy response score (CRS) in HGSOC patients receiving NAC.
  • To identify patient subgroups likely to respond favorably to NAC.

Main Methods

  • Multicenter retrospective study of 172 patients with International Federation of Gynecology and Obstetrics stage IIIC/IV HGSOC treated between 2016-2021.
  • Pathological slides were scored using the CRS criteria.
  • Clinical factors, including distant metastases and BRCA1/2 mutations, were analyzed for their association with CRS and survival outcomes.

Main Results

  • Patients with simultaneous distant lymph node and solid organ metastases showed reduced likelihood of CRS2 (OR=0.25).
  • Germline BRCA1/2 mutations were positively associated with CRS3 (OR=8.41) and predicted better prognosis.
  • Higher CRS (CRS3) correlated with significantly longer progression-free survival (PFS) and overall survival (P < .001).

Conclusions

  • Germline BRCA1/2 mutations are a positive predictor of CRS3 and improved survival in HGSOC patients.
  • Simultaneous distant metastases predict a lower CRS (CRS1).
  • CRS is a significant prognostic factor, inversely correlating with PFS and overall survival in advanced HGSOC treated with NAC.

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