, Volume 169, Issue 2, pp 245-247

Long-term treatment with recombinant insulin-like growth factor 1 (IGF-1) in a child with IGF-1 gene mutation

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We assessed the efficacy and safety of recombinant human insulin-like growth factor 1 (IGF-1) therapy over a period of 7.5 years in a child with severe IGF-1 deficiency. Recombinant human IGF-1 was administered subcutaneously in doses between 40 and 80 μg/kg once daily. Height velocity increased from 2 cm/year on average at baseline to 7.9 cm/year during the first year of treatment. In the following years, growth velocity was less but satisfactory during treatment, but decreased when therapy was stopped.