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Pharmacokinetic Profile of Recombinant Human Insulin‐Like Growth Factor I Given Subcutaneously in Normal Subjects
Author(s) -
WILTON P.,
SIETNIEKSI A.,
GUNNARSSONI R.,
BERGER L.,
GRAHNÉN A.
Publication year - 1991
Publication title -
acta paediatrica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.772
H-Index - 115
eISSN - 1651-2227
pISSN - 0803-5253
DOI - 10.1111/apa.1991.80.s377.111
Subject(s) - pharmacokinetics , medicine , postprandial , endocrinology , insulin , placebo , insulin like growth factor , recombinant dna , subcutaneous injection , microgram , growth factor , receptor , biology , in vitro , biochemistry , alternative medicine , pathology , gene
The pharmacokinetic profile of recombinant human insulin‐like growth factor I (IGF‐I) was studied in healthy volunteers. Following a single subcutaneous injection of 40 μg/kg or 80 µg/kg,mean serum IGF‐I concentrations increased by 150 ng/ml and 245 ng/ml, respectively. During repeated daily injections of 40 μg/kg, a steady‐state IGF‐I level of 150 ng/ml above baseline was reached. Of the pharmacokinetic indices measured, only T max , varied between single and multiple dose regimens (6.9 hours versus 3.5 hours). No hypoglycaemic symptoms were observed, and after injection of IGF‐I no depression of endogenous IGF‐I production was observed. Fasting insulin levels were unaltered, but insulin was lowered by IGF‐I with respect to placebo.