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Growth Hormone Dose-Dependent Pubertal Growth: A Randomized Trial in Short Children with Low Growth Hormone Secretion
Umeå University, Faculty of Medicine, Department of Clinical Sciences, Paediatrics.
Umeå University, Faculty of Medicine, Department of Clinical Sciences, Paediatrics.
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2014 (English)In: Hormone Research in Paediatrics, ISSN 1663-2818, E-ISSN 1663-2826, Vol. 82, no 3, 158-170 p.Article in journal (Refereed) Published
Abstract [en]

Background/Aims: Growth hormone (GH) treatment regimens do not account for the pubertal increase in endogenous GH secretion. This study assessed whether increasing the GH dose and/or frequency of administration improves pubertal height gain and adult height (AH) in children with low GH secretion during stimulation tests, i. e. idiopathic isolated GH deficiency. Methods: A multicenter, randomized, clinical trial (No. 88-177) followed 111 children (96 boys) at study start from onset of puberty to AH who had received GH(33) mu g/kg/day for >= 1 year. They were randomized to receive 67 mu g/kg/day (GH(67)) given as one (GH(67x1); n = 35) or two daily injections (GH(33x2); n = 36), or to remain on a single 33 mu g/kg/day dose (GH(33x1); n = 40). Growth was assessed as height SDS gain for prepubertal, pubertal and total periods, as well as AH SDS versus the population and the midparental height. Results: Pubertal height SDS gain was greater for patients receiving a high dose (GH(67), 0.73) than a low dose (GH(33x1), 0.41, p < 0.05). AH(SDS) was greater on GH(67) (GH(67x1), -0.84; GH(33x2), -0.83) than GH(33) (-1.25, p < 0.05), and height SDS gain was greater on GH(67) than GH(33) (2.04 and 1.56, respectively; p < 0.01). All groups reached their target height SDS. Conclusion: Pubertal height SDS gain and AH SDS were dose dependent, with greater growth being observed for the GH(67) than the GH(33) randomization group; however, there were no differences between the once-and twice-daily GH(67) regimens. (C) 2014 S. Karger AG, Basel.

Place, publisher, year, edition, pages
2014. Vol. 82, no 3, 158-170 p.
Keyword [en]
Gain in height, Prepubertal growth, Growth hormone frequency, Delayed infancy-childhood ansition, Puberty
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URN: urn:nbn:se:umu:diva-98463DOI: 10.1159/000363106ISI: 000345448500003ScopusID: 2-s2.0-84906588161OAI: diva2:784049
Available from: 2015-01-28 Created: 2015-01-22 Last updated: 2015-01-28Bibliographically approved

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Kriström, BeritLundberg, Elena
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