February 2026 in “Cureus” In this case report, a 25-year-old transgender woman on testosterone-blocking therapy developed generalised hypertrichosis after starting ciclosporin for severe plaque psoriasis, illustrating that ciclosporin can induce this side effect even under androgen suppression.
October 2024 in “Journal of the Endocrine Society” In this retrospective chart review, researchers observed that estrogen monotherapy effectively suppressed testosterone levels below 50ng/dL in all transfeminine patients studied, particularly those using injectable formulations, though the small sample size and ongoing data collection limit these findings.
October 2024 in “Journal of the Endocrine Society” In this retrospective study, among transfeminine patients aged 19-81 receiving gender-affirming estrogen therapy, 100% achieved testosterone suppression without anti-androgens when serum estradiol exceeded 100pg/mL, predominantly using injectable estrogen.
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August 2014 in “Current Urology Reports” This review discusses the known effects of medications for benign prostatic hyperplasia on sexual function and mechanisms of dysfunction but reports no new clinical results.
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January 1997 in “Endocrinology” Testosterone was found to inhibit hair follicle epithelial cell proliferation in adult stumptailed macaques only when dermal papilla cells from bald scalps were present, and this effect was reversed by the antiandrogen RU 58841.