David A Barrington1, Ashley S Felix2, Rieham Owda1, Adrian A Suarez3, David W Cohen3, Leigha Senter4, Larry J Copeland1, Jeffrey M Fowler1, Floor J Backes1, David E Cohn1, Kristin L Bixel1, David M O'Malley1, Ritu Salani1, Casey M Cosgrove5. 1. Department of Obstetrics and Gynecology, The Ohio State University Wexner Medical Center, Columbus, United States. 2. Division of Epidemiology, College of Public Health, The Ohio State University, Columbus, United States. 3. Department of Pathology, The Ohio State University Wexner Medical Center, Columbus, United States. 4. Department of Internal Medicine, The Ohio State University Wexner Medical Center, Columbus, United States. 5. Department of Obstetrics and Gynecology, The Ohio State University Wexner Medical Center, Columbus, United States. Electronic address: Casey.cosgrove@osumc.edu.
Abstract
OBJECTIVE: A pathologic chemotherapy response score (CRS) is used to grade ovarian cancer response to neoadjuvant chemotherapy (NACT). We evaluated the prognostic significance of the CRS in a single institution cohort. METHODS: A retrospective review of all consecutive epithelial ovarian cancer patients undergoing interval debulking surgery (IDS) after NACT from 2016 to 2017 were included. Clinical, pathologic, surgical, outcomes, and genetic data were abstracted from medical records. CRS was assigned by pathology based on a section of omentum as follows: 1 = minimal response, 2 = moderate response, and 3 = near complete response. RESULTS: Among the 50 subjects, 14 (28%) were classified as CRS1, 29 (58%) as CRS2, and 7 (14%) as CRS3. The majority of patients were diagnosed with high grade serous histology (94%). Most women in this cohort underwent either an optimal or complete cytoreduction to no gross residual disease (96%). Women in the CRS2 group were most likely to have a pathogenic variant (51.7%) while those in the CRS1 were least likely (7.1%). Most women recurred regardless of CRS. CRS was not associated with progression-free survival (log-rank p = 0.82) or overall survival (log-rank p = 0.30). CONCLUSIONS: Though previous data support the use of CRS as a prognostic indicator, we failed to show a correlation between CRS and survival in our continuous single institution cohort. The high rate of optimal debulking across all CRS groups in this study may mitigate the prognostic significance of the scoring system. Nevertheless, tumors that respond poorly to traditional chemotherapy should remain of avid interest for potential novel therapies. Published by Elsevier Ltd.
OBJECTIVE: A pathologic chemotherapy response score (CRS) is used to grade ovarian cancer response to neoadjuvant chemotherapy (NACT). We evaluated the prognostic significance of the CRS in a single institution cohort. METHODS: A retrospective review of all consecutive epithelial ovarian cancerpatients undergoing interval debulking surgery (IDS) after NACT from 2016 to 2017 were included. Clinical, pathologic, surgical, outcomes, and genetic data were abstracted from medical records. CRS was assigned by pathology based on a section of omentum as follows: 1 = minimal response, 2 = moderate response, and 3 = near complete response. RESULTS: Among the 50 subjects, 14 (28%) were classified as CRS1, 29 (58%) as CRS2, and 7 (14%) as CRS3. The majority of patients were diagnosed with high grade serous histology (94%). Most women in this cohort underwent either an optimal or complete cytoreduction to no gross residual disease (96%). Women in the CRS2 group were most likely to have a pathogenic variant (51.7%) while those in the CRS1 were least likely (7.1%). Most women recurred regardless of CRS. CRS was not associated with progression-free survival (log-rank p = 0.82) or overall survival (log-rank p = 0.30). CONCLUSIONS: Though previous data support the use of CRS as a prognostic indicator, we failed to show a correlation between CRS and survival in our continuous single institution cohort. The high rate of optimal debulking across all CRS groups in this study may mitigate the prognostic significance of the scoring system. Nevertheless, tumors that respond poorly to traditional chemotherapy should remain of avid interest for potential novel therapies. Published by Elsevier Ltd.
Entities:
Keywords:
BRCA; Chemotherapy response score; Debulking surgery; Ovarian cancer
Authors: M Liontos; A Andrikopoulou; K Koutsoukos; C Markellos; E Skafida; O Fiste; M Kaparelou; N Thomakos; D Haidopoulos; A Rodolakis; M A Dimopoulos; F Zagouri Journal: J Ovarian Res Date: 2021-11-01 Impact factor: 4.234