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- Title
Pubertal Suppression in Early Puberty Followed by Testosterone Mildly Increases Final Height in Transmasculine Youth.
- Authors
Persky, Rebecca W; Apple, Danielle; Dowshen, Nadia; Pine, Elyse; Whitehead, Jax; Barrera, Ellis; Roberts, Stephanie A; Carswell, Jeremi; Stone, Dana; Diez, Sandra; Bost, James; Dwivedi, Pallavi; Gomez-Lobo, Veronica
- Abstract
Context Treatment for transmasculine youth (TMY) can involve testosterone treatment and is sometimes preceded by gonadotropin-releasing hormone agonist (GnRHa) treatment for puberty blockade. GnRHas can increase final height in birth-assigned females with central precocious puberty. Maximizing final adult height (FAH) is an important outcome for many TMY. Objective Our objective was to determine how GnRHa treatment before testosterone impacts FAH. Methods Retrospective cohort study at 5 US transgender health clinics. Participants were 32 TMY treated with GnRHas in early to midpuberty before testosterone (GnRHa + T group) and 62 late/postpubertal TMY treated with testosterone only (T-only group). Results The difference between FAH minus midparental target height (MPTH) was +2.3 ± 5.7 cm and −2.2 ± 5.6 cm in the GnRHa + T and T-only groups, respectively (P <.01). In the GnRHa + T group, FAH was 1.8 ± 3.4 cm greater than predicted adult height (PAH) (P <.05) and FAH vs initial height (IH) z-score was 0.5 ± 1.2 vs 0.16 ± 1.0 (P <.05). After adjusting for patient characteristics, each additional month of GnRHa monotherapy increased FAH by 0.59 cm (95% CI 0.31, 0.9 cm), stage 3 breast development at start of GnRHa was associated with 6.5 cm lower FAH compared with stage 2 (95% CI −10.43, −2.55), and FAH was 7.95 cm greater in the GnRHa + T group than in T-only group (95% CI −10.85, −5.06). Conclusion Treatment with GnRHa in TMY in early puberty before testosterone increases FAH compared with MPTH, PAH, IH, and TMY who only received testosterone in late/postpuberty. TMY considering GnRHas should be counseled that GnRHas may mildly increase their FAH if started early.
- Subjects
PRECOCIOUS puberty; GONADOTROPIN releasing hormone; TESTOSTERONE; HEALTH of transgender people; TRANSGENDER youth
- Publication
Journal of the Endocrine Society, 2024, Vol 8, Issue 6, p1
- ISSN
2472-1972
- Publication type
Article
- DOI
10.1210/jendso/bvae089