Search

Item does not contain fulltext CONTEXT: Previously we showed that pubertal children born small for gestational age (SGA) with a poor adult height (AH) expectation can benefit from treatment with GH 1 mg/m(2) per day ( approximately 0.033 mg/kg/d) in combination with 2 years of GnRH analog (GnRHa) and even more so with a double GH dose. GnRHa treatment is thought to have negative effects on body composition and blood pressure. Long-term effects and GH-dose effects on metabolic health in children treated with combined GH/GnRHa are unknown. OBJECTIVE: This study aimed to investigate body composition, blood pressure, and lipid profile during GH treatment, either with or without 2 years of additional GnRHa. To assess whether GH 2 mg/m(2) per day ( approximately 0.067 mg/kg/d) results in a similar or even more favorable metabolic health at AH than GH 1 mg/m(2) per day. METHODS: This was a longitudinal, randomized, dose-response GH trial involving 107 short SGA children (58 girls) treated with GH until AH (GH randomized 1 or 2 mg/m(2)/d during puberty). Sixty-four children received additional GnRHa. At AH, metabolic parameters were compared between children treated with combined GH/GnRHa and those with only GH. The GH dose effect on metabolic health was evaluated in a subgroup of 47 children who started GH treatment in early puberty (randomized 1 or 2 mg/m(2)/d) with 2 years of GnRHa. RESULTS: At AH, fat mass percentage (FM%) SD score (SDS), lean body mass (LBM) SDS, blood pressure SDS, and lipid profile were similar between children treated with combined GH/GnRHa and those with only GH. In the pubertal subgroup, FM% SDS was lower during treatment with GH 2 mg/m(2) per day. There was no GH dose-dependent effect on LBM SDS, blood pressure, and lipid profile. CONCLUSIONS: Combined GH/GnRHa treatment has no long-term negative effects on metabolic health compared with only GH. Started in early puberty, a GH dose of 2 mg/m(2) per day results in a similar metabolic health at AH and a more favorable FM% than GH 1 mg/m(2) per day.

Context: GH treatment is effective in improving height in short children born small for gestational age (SGA). GH is thought to have limited effect when started during adolescence.Objective: The aim of this study was to investigate GH treatment efficacy in short SGA children when treatment was started during adolescence; to assess whether GH 2 mg/m(2).d during puberty improves adult height (AH) compared with 1 mg/m(2).d; and to assess whether an additional 2-yr postponement of puberty by GnRH analog (GnRHa) improves AH in children who are short at the start of puberty (Patients and Design: In this longitudinal, randomized, dose-response GH trial, we included 121 short SGA children (60 boys) at least 8 yr of age. We performed intention-to-treat analyses on all children and uncensored case analyses on 84 children who reached AH. Besides, we evaluated growth during 2 yr of combined GH/GnRHa and subsequent GH treatment until AH in a subgroup of 40 pubertal children with a height of less than 140 cm at the start.Results: Short SGA children started treatment at a median age of 11.2 yr, when 46% had already started puberty. Median height increased from -2.9 at start to -1.7 SD score (SDS) at AH (P Conclusion: When started in adolescence, GH treatment significantly improves AH in short SGA children, particularly with GH 2 mg/m(2).d during puberty. When SGA children are short at the start of puberty, they can benefit from combined GH/GnRHa treatment. (J Clin Endocrinol Metab 97: 4096-4105, 2012)

BackgroundGnRH analogue (GnRHa) combined with GH treatment has been proposed to increase adult height. Effect on metabolic profile and GH, IGF1, and IGFBP3 levels in short small for gestational age (SGA) children is unknown.ObjectiveTo assess fat mass and lean body mass SDS, percentage trunk fat, blood pressure (BP), insulin sensitivity (Si), β-cell function (disposition index, DI), lipid profile, and GH, IGF1, and IGFBP3 levels during 2 years of combined treatment.SubjectsForty-one pubertal short SGA children with a mean (±s.d.) age of 12.1 (±1.0) years.DesignChildren received 3.75 mg of leuprolide acetate depot subcutaneously every 4 weeks, and they were randomly assigned to receive 1 mg (group A) or 2 mg (group B) of GH/m2per day.ResultsPercentage trunk fat increased in both groups, but to a lower extent in group B. Lean body mass SDS increased only in group B. Changes in BP, Si, DI, and lipids were similar in both groups. Si significantly decreased, but DI remained unchanged. Lipids remained normal. GH and IGF1 levels were significantly higher in group B.ConclusionOur study is the first to report that 2 years of combined treatment with a GnRHa and either 1 or 2 mg GH/m2per day does not adversely affect body composition and metabolic profile of short SGA children who come under medical attention at the onset of puberty. There was a dose-dependent effect on fat mass SDSheight, percentage trunk fat, lean body mass SDSheight, and GH and IGF1 levels in favor of treatment with GnRHa and the higher GH dose of 2 mg/m2per day.