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Safety and tolerability of growth hormone therapy in multiple system atrophy: A double-blind, placebo-controlled study

The objective of this study was to investigate tolerability and possible neurotrophic effects of growth hormone (GH) in treatment of multiple system atrophy (MSA). In this double‐blind pilot study, MSA patients were randomized to recombinant human growth hormone (r‐hGH, n = 22), 1 mg every second da...

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Published in:Movement disorders 2007-06, Vol.22 (8), p.1138-1144
Main Authors: Holmberg, Björn, Johansson, Jan-Ove, Poewe, Werner, Wenning, Gregor, Quinn, Niall P., Mathias, Chris, Tolosa, Eduardo, Cardozo, Adriana, Dizdar, Nil, Rascol, Olivier, Slaoui, Tarik
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Language:English
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Summary:The objective of this study was to investigate tolerability and possible neurotrophic effects of growth hormone (GH) in treatment of multiple system atrophy (MSA). In this double‐blind pilot study, MSA patients were randomized to recombinant human growth hormone (r‐hGH, n = 22), 1 mg every second day (6 months) followed by alternating daily injections of 1 mg and 0.5 mg (6 months), or matched placebo (n = 21). Safety analysis demonstrated no obvious between‐group differences. In both groups, there was progressive worsening of Unified Parkinson's Disease Rating Scale total score, which tended to be less in r‐hGH‐treated patients (12.9% at 6 months, 25.3% at 12 months) than in placebo (17.0% and 35.7%). Similarly, there was a trend to less worsening in Unified MSA Rating Scale total score with r‐hGH (13.2% and 21.2%) than with placebo (21.1% and 36.5%). Cardiovascular reflex autonomic testing also tended to show less deterioration with r‐hGH than with placebo at 12 months. However, 95% CI did not indicate treatment differences for any efficacy measures. In conclusion, r‐hGH administration in MSA patients for up to 1 year appears safe and might influence disease symptoms, signs and, possibly, progression. The results support further studies utilizing higher doses in more patients. © 2007 Movement Disorder Society
ISSN:0885-3185
1531-8257
1531-8257
DOI:10.1002/mds.21501