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Central precocious puberty — Clinical Guidelines

Overview

Central precocious puberty (CPP) is characterized by premature activation of the hypothalamic-pituitary-gonadal axis before age 8 in girls and 9 in boys, leading to early pubertal development and accelerated bone age progression. 1 2 3

Diagnosis

Elevated levels of luteinizing hormone (LH) and follicle-stimulating hormone (FSH) during GnRH stimulation test.

Increased uterine volume and breast development in girls.

Low serum 25-hydroxyvitamin D (25OHD) levels observed in many cases, potentially correlating with disease severity. 1 2 3

Management

First-line treatment: Gonadotropin-releasing hormone (GnRH) analogs (e.g., histrelin acetate implant). 4

Adjunctive management: Monitoring and addressing vitamin D deficiency, though its direct causal role in treatment efficacy is unclear. 1 2 3

Special Populations

Pediatrics: Vitamin D deficiency is prevalent and may correlate with disease severity, suggesting routine screening and supplementation might be beneficial. 1 2 3

Comorbidities: No specific guidance provided for comorbidities; focus on managing underlying conditions alongside CPP treatment.

Key Recommendations

Screen for vitamin D deficiency in girls diagnosed with idiopathic central precocious puberty, as lower levels correlate with increased uterine volume and potentially more severe disease progression. (Evidence: Moderate) 1 2 3

Consider the use of histrelin acetate subcutaneous implants as a safe and effective alternative to conventional monthly GnRH analog injections for managing CPP. (Evidence: Strong) 4

Evaluate the potential benefits of vitamin D supplementation in managing ICPP, though randomized controlled trials are needed to confirm efficacy beyond observational associations. (Evidence: Weak) 1 2 3

References

1 Sun J, Wang W, Xiao Y, Cao NN, Wang YF, Zhang HR et al.. Correlation between serum vitamin D level and uterine volume in girls with idiopathic central precocious puberty. Journal of pediatric endocrinology & metabolism : JPEM 2024. link 2 Xu L, Li P, Yuan D. Confirming the association between low serum 25OHD levels in girls with central precocious puberty and its severity. BMC pediatrics 2023. link 3 Gan DM, Fang J, Zhang PP, Zhao YD, Xu YN. Serum 25-hydroxyvitamin D levels and the risk of idiopathic central precocious puberty in girls. Clinics (Sao Paulo, Brazil) 2023. link 4 Rosati S, Maarouf R, Brown K, Poppe M, Parrish D, Haynes J et al.. Histrelin for central precocious puberty-a single surgeon experience. The Journal of surgical research 2015. link 5 Eckert KL, Wilson DM, Bachrach LK, Anhalt H, Habiby RL, Olney RC et al.. A single-sample, subcutaneous gonadotropin-releasing hormone test for central precocious puberty. Pediatrics 1996. link

Central precocious puberty