Survival and Chemosensitivity in Advanced High Grade Serous Epithelial Ovarian Cancer Patients with and without a BRCA Germline Mutation: More Evidence for Shifting the Paradigm towards Complete Surgical Cytoreduction

<i>Background and Objectives</i>: Approximately 10–15% of high-grade serous ovarian cancer (HGSOC) cases are related to BRCA germline mutations. Better survival rates and increased chemosensitivity are reported in patients with a BRCA 1/2 germline mutation. However, the FIGO stage and hi...

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Bibliographic Details
Main Authors: Diederick De Jong, Mohamed Otify, Inga Chen, David Jackson, Kelum Jayasinghe, David Nugent, Amudha Thangavelu, Georgios Theophilou, Alexandros Laios
Format: Article
Language:English
Published: MDPI AG 2022-11-01
Series:Medicina
Subjects:
Online Access:https://www.mdpi.com/1648-9144/58/11/1611
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Summary:<i>Background and Objectives</i>: Approximately 10–15% of high-grade serous ovarian cancer (HGSOC) cases are related to BRCA germline mutations. Better survival rates and increased chemosensitivity are reported in patients with a BRCA 1/2 germline mutation. However, the FIGO stage and histopathological entity may have been confounding factors. This study aimed to compare chemotherapy response and survival between patients with and without a BRCA 1/2 germline mutation in advanced HGSOC receiving neoadjuvant chemotherapy (NACT). <i>Materials and Methods</i>: A cohort of BRCA-tested advanced HGSOC patients undergoing cytoreductive surgery following NACT was analyzed for chemotherapy response and survival. Neoadjuvant chemotherapy served as a vehicle to assess chemotherapy response on biochemical (CA125), histopathological (CRS), biological (dissemination), and surgical (residual disease) levels. Univariate and multivariate analyses for chemotherapy response and survival were utilized. <i>Results</i>: Thirty-nine out of 168 patients had a BRCA ½ germline mutation. No differences in histopathological chemotherapy response between the patients with and without a BRCA ½ germline mutation were observed. Survival in the groups of patients was comparable Irrespective of the BRCA status, CRS 2 and 3 (HR 7.496, 95% CI 2.523–22.27, <i>p</i> < 0.001 & HR 4.069, 95% CI 1.388–11.93, <i>p</i> = 0.011), and complete surgical cytoreduction (<i>p</i> = 0.017) were independent parameters for a favored overall survival. <i>Conclusions</i>: HGSOC patients with or without BRCA ½ germline mutations, who had cytoreductive surgery, showed comparable chemotherapy responses and subsequent survival. Irrespective of BRCA status, advanced-stage HGSOC patients have a superior prognosis with complete surgical cytoreduction and good histopathological response to chemotherapy.
ISSN:1010-660X
1648-9144