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  • Title: Effect of growth hormone (GH) during puberty in GH-deficient children: preliminary results from an ongoing randomized trial with different dose regimens.
    Author: Albertsson Wikland K, Alm F, Aronsson S, Gustafsson J, Hagenäs L, Häger A, Ivarsson S, Kriström B, Marcus C, Moëll C, Nilsson KO, Ritzén M, Tuvemo T, Westgren U, Westphal O, Aman J.
    Journal: Acta Paediatr Suppl; 1999 Feb; 88(428):80-4. PubMed ID: 10102059.
    Abstract:
    This paper reports results from an ongoing, randomized, multicentre national trial. The aim is to elucidate whether a dose of growth hormone (GH) of 0.2 IU/kg (0.07 mg/kg), given either as once-daily or twice-daily injections during puberty, is more effective than a once-daily dose of 0.1 IU/kg/day (0.03 mg/kg/day) in improving final height in children with GH deficiency (GHD). The twice-daily regimen comes closer to the spontaneous GH secretion pattern in puberty. Ninety-two children with GHD who had been receiving GH therapy for at least 1 year, and with spontaneous puberty or who were prepubertal and due to be started on replacement therapy to induce puberty, were randomly assigned to receive GH as follows: group A, 0.1 IU/kg/day (0.03 mg/kg/day), administered once daily; group B, 0.2 IU/kg/day (0.07 mg/kg/day), administered once daily; and group C, 0.2 IU/kg/day (0.07 mg/kg/day), divided into two equal injections given at 12-hour intervals. Pubertal height gain was 0.7, 0.7 and 1.3 SDS for groups A, B and C, respectively. The gain in height during puberty was thus most marked in group C. Mean final height, when corrected for parental height, was between 0 and 1 SDS in all treatment groups. All but seven children reached a final height within +/- 2 SD of the general population. There was a wide range of final heights in all three treatment groups. This variation in response suggests the need to individualize treatment in order to achieve an appropriate final height for most individuals.
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