Article ID Journal Published Year Pages File Type
2803068 Growth Hormone & IGF Research 2010 7 Pages PDF
Abstract

ObjectiveA clinical study was carried out to investigate the efficacy and safety of two doses of GH treatment on adult growth hormone deficiency (AGHD) patients in Japan. Dose-responsiveness between GH doses and changes of body composition was examined.DesignA 24-week, randomized, placebo-controlled, double-blind clinical study in 96 Japanese AGHD patients followed by a 48-week, open-label, long-term study.ResultsDuring the double-blind study, serum insulin-like growth factor (IGF)-I SDS and lean body mass increased and total fat mass and serum total cholesterol decreased similarly in both GH treated groups. Mean changes in IGF-I SDS were 3.63 ± 1.67, 1.97 ± 1.27, and −0.13 ± 0.55 in high-dose (HD) group (0.012 mg/kg/day), low-dose (LD) group (0.006 mg/kg/day), and placebo group, respectively. Trunk fat mass decreased significantly (p < 0.001) in HD group and LD group but not in placebo group (mean changes in percent trunk fat mass were −4.6 ± 2.6%, −3.0 ± 2.5% and 0.2 ± 2.1% in HD group, LD group and placebo group, respectively). Serum LDL-cholesterol decreased in both GH treated groups but significantly only in HD group. Statistically significant dose-responsiveness was shown among three groups (p < 0.001) with regards to IGF-I SDS, trunk fat mass, total fat mass, and lean body mass. The changes in serum IGF-I SDS, body composition, total cholesterol, and LDL-cholesterol at the end of double-blind study persisted throughout the open-label study. In addition, there was no clinically relevant adverse event during the both studies.ConclusionsGH treatment significantly improved serum levels of IGF-I and body composition in a dose-responsive manner in Japanese AGHD patients. Total cholesterol and LDL-cholesterol levels also decreased. GH treatment was safe and generally well tolerated.

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