Oocyte retrieval outcomes among adolescent transgender males

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Abstract
Purpose To compare fertility preservation (FP) outcomes among adolescent transgender males with those of cisgender females. Methods This retrospective cohort study included nine adolescent transgender males and 39 adolescent cisgender females who underwent FP between January 2017–April 2019 and September 2013–April 2019, respectively. The transgender males were referred before initiating testosterone, and the cisgender females were referred due to cancer diagnosis before starting anticancer treatment. Statistical analyses compared assisted reproductive technology (ART) data and FP outcomes between two groups. Results Basal FSH levels (5.4 ± 1.7 mIU/mL) and AFC (19.8 ± 5.6) of all transgender males were normal compared with standard references. The mean age of transgender males and cisgender females was similar (16.4 ± 1.1 vs 15.5 ± 1.3 years, respectively, P = 0.064). The amount of FSH used for stimulation was significantly lower among the former compared with the latter (2416 ± 1041 IU vs 4372 ± 1877 IU, P < 0.001), but the duration of stimulation was similar (12.6 ± 4.0 and 10.1 ± 2.8 days, P = 0.086). Peak estradiol level was significantly higher among transgender males compared with cisgender females (3073 ± 2637 pg/mL vs 1269 ± 975 pg/mL, respectively, P = 0.018), but there were no significant differences in number of retrieved oocytes between the two groups (30.6 ± 12.8 vs 22 ± 13.2, P = 0.091), number of MII oocytes (25.6 ± 12.9 vs 18.8 ± 11.2, P = 0.134), or maturity rates (81.5 ± 10.0% vs 85.4 ± 14.6%, P = 0.261). Conclusions Adolescent transgender males have an excellent response to ovulation stimulation before initiating testosterone treatment. Oocyte cryopreservation is, therefore, a feasible and effective way for them to preserve their fertility for future biological parenting.

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