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The Effect of Delayed Chemotherapy on the Decrease of CA125 in Epithelial Ovarian Cancer During Coronavirus Disease Pandemic in 2020

Authors Yi Q, Ran Y, Li C

Received 31 October 2020

Accepted for publication 7 January 2021

Published 19 January 2021 Volume 2021:13 Pages 515—520


Checked for plagiarism Yes

Review by Single anonymous peer review

Peer reviewer comments 4

Editor who approved publication: Dr Eileen O'Reilly

Qiang Yi, Yu Ran, Cong Li

Department of Gynecology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, People’s Republic of China

Correspondence: Cong Li No. 1 YouYi Road, YuZhong District, Chongqing 400010, People’s Republic of China
Tel +8615334506105
Fax +8623 89011080

Objective: To investigate whether patients with epithelial ovarian cancer were affected by delayed chemotherapy during the coronavirus disease pandemic in 2020.
Materials and Methods: A delay of more than 21 days in the planned chemotherapy was defined as “delayed chemotherapy.” Forty-five patients with epithelial ovarian, fallopian tube, and peritoneal cancer were delayed between January 1 and March 30, 2020 in the First Affiliated Hospital of Chongqing Medical University. Thirty-two cases were enrolled in this study. Neoadjuvant chemotherapy was used in 8 cases; palliative chemotherapy was used in 5 cases; and maintenance chemotherapy was used in 19 cases. Data included age, pathological type, surgical pathological stage, chemotherapy time and CA125 levels were collected. The half-life of CA125 and the decrease in CA125 levels before and after delayed chemotherapy were calculated.
Results: No patient got coronavirus disease. Compared with patients of ovarian cancer, fallopian tube epithelial cancer and peritoneal epithelial cancer in the same periods in 2019, the half-life of CA125 in neoadjuvant chemotherapy group and recurrence chemotherapy group were more than 20 days, but there was no significant difference. Only when the delayed chemotherapy took place before CA125 turned negative, accompanied by an interval of more than 60 days, the CA125 half-life and the decreased range of CA125 were totally affected.
Conclusion: There was no evidence to support that once chemotherapy was delayed it would influence the decrease of CA125, but whether it would affect the long-term effects such as recurrence and five-year survival rate remains to be further followed up.

Keywords: epithelial ovarian cancer, CA125, delayed chemotherapy, half-life

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