1038P - The feasibility and efficacy of gonadotropin-releasing hormone agonists for prevention of chemotherapy-induced ovarian insufficiency in patient with malignant ovarian germ cell tumours

Abstract

BackgroundTo assess the effects of a gonadotropin-releasing hormone agonists (GnRHa) administration in young patients with malignant ovarian germ cell tumour (MOGCT) during chemotherapy on the prevention of chemotherapy-induced ovarian insufficiency. MethodsThis multicenter, retrospective study was conducted at fifteen sites in Korea and enrolled 354 patients between January 1995 and January 2018. Among them 227 patients were included in this study according the inclusion criteria: 1) patients diagnosed as pathologically malignant germ cell tumours of the ovaries, 2) who have preserved the uterus and at least one ovary, 3) who received postoperative chemotherapy at least 3 cycles, 4) age at diagnosis, after menarche ∼ < 40 years old, 5) available clinical information on menstrual resumption. Patients were divided into two groups according to the use of GnRHa during chemotherapy (GnRHa group and non-GnRHa group) and compared the incidence of early menopause. ResultsThere was no difference in age, parity, menarche, stage, and type of operation (unilateral or bi-lateral adnexal surgery) among the two groups. The distribution of histology and types of chemotherapy drugs were different. After the end of chemotherapy, the resumption of menstruation was 100% in GnRHa group and 91% in non-GnRHa group (p=0.0132). The univariate analysis of the factors affecting menstrual resumption showed that the use of GnRHa during chemotherapy was statistically significant difference (OR, 0.00 (0∼0.69;95% CI, p=0.013). ConclusionsThe present findings provide evidence for the efficacy of temporary ovarian suppression with GnRHa during chemotherapy as an available option to reduce the likelihood of chemotherapy-induced ovarian insufficiency and potentially improve fertility in young patients with MOGCT. Legal entity responsible for the studyThe author. FundingCHA Bundang Medical Centre. DisclosureThe author has declared no conflicts of interest.