• Nam Kyeong Kim, Dong Hoon Suh, Kidong Kim, Jae Hong No, and Yong Beom Kim.
• Department of Obstetrics and Gynecology, Seoul National University Bundang Hospital, Seongnam, Korea.
• Medicine (Baltimore). 2022 Aug 26; 101 (34): e30155.

AbstractNo study has evaluated the effect of therapeutic granulocyte colony-stimulating factor (G-CSF) in preventing recurrence of febrile neutropenia (FN) and survival outcomes in gynecologic cancer patients. Objective of this study is to optimize and to identify the use of G-CSF and identify the critical factors for preventing the recurrence of FN in women undergoing chemotherapy for the treatment of gynecologic cancer. The medical records of consecutive patients who underwent chemotherapy for the treatment of gynecologic cancer and experienced FN at least once were retrospectively reviewed. Clinico-laboratory variables were compared between those with and without recurrence of FN to identify risk factors for the recurrence and the most optimal usage of G-CSF that can prevent FN. Student t test, χ2 test, and multivariate Cox regression analysis were used. A total of 157 patients who met the inclusion criteria were included. Of 157, 49 (31.2%) experienced recurrence of FN. Age ≥55 years (P = .043), previous lines of chemotherapy ≤1 (P = .002), thrombocytopenia (P = .025), total dose (P = .003), and maximum daily dose (P = .009) of G-CSF were significantly associated with recurrence of FN. Multiple regression analysis showed that age ≥55 years (HR, 2.42; 95% CI, 1.14-5.14; P = .022), previous chemotherapy ≤1 (HR, 4.01; 95% CI, 1.40-11.55; P = .010), and maximum daily dose of G-CSF ≤600 μg (HR, 5.18; 95% CI, 1.12-24.02; P = .036) were independent risk factors for recurrent FN. Multivariate Cox regression analysis showed that a maximum daily dose of G-CSF ≤600 μg was the only independent risk factor for short recurrence-free survival of FN (HR, 4.75; 95% CI, 1.15-19.56; P = .031). Dose-dense administration of G-CSF >600 μg/day could prevent recurrence of FN in women who undergo chemotherapy for the treatment of gynecologic cancer and FN. Old age and FN at early lines of chemotherapy seem to be associated with FN recurrence.Copyright © 2022 the Author(s). Published by Wolters Kluwer Health, Inc.

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