Efficacy of letrozole combined with recombinant human growth hormone in boys aged ≥10 years with advanced bone age and impaired growth potential: a retrospective cohort study
Introduction In boys aged ≥10 years with advanced bone age and impaired growth potential (baseline height SDS < −1.5, BA-CA ≥1.5 years, and PAH < −2 SDS), growth hormone monotherapy, while promoting linear growth, fails to delay skeletal maturation, thus limiting therapeutic efficacy. Although letrozole combined with g...