title: Pharmacokinetic profile of recombinant human insulin-like growth factor I given subcutaneously in normal subjects.
abstract: 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 micrograms/kg or 80 micrograms/kg, mean serum IGF-I concentrations increased by 150 ng/ml and 245 ng/ml, respectively. During repeated daily injections of 40 micrograms/kg, a steady-state IGF-I level of 150 ng/ml above baseline was reached. Of the pharmacokinetic indices measured, only Tmax 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 postprandial insulin was lowered by IGF-I with respect to placebo.
authors.affiliation: Department of Clinical Research, Kabi Pharmacia Peptide Hormones, Stockholm, Sweden.
authors.forename: P
authors.initials: P
authors.lastname: Wilton
authors.forename: A
authors.initials: A
authors.lastname: Sietnieks
authors.forename: R
authors.initials: R
authors.lastname: Gunnarsson
authors.forename: L
authors.initials: L
authors.lastname: Berger
authors.forename: A
authors.initials: A
authors.lastname: Grahnén
mesh_terms: D000328:Adult; D001786:Blood Glucose / Q000032:analysis; D004311:Double-Blind Method; D006801:Humans; D007279:Injections, Subcutaneous; D007328:Insulin / Q000097:blood; D007334:Insulin-Like Growth Factor I / Q000008:administration & dosage / Q000032:analysis / Q000493:pharmacokinetics*; D008297:Male; D011994:Recombinant Proteins / Q000008:administration & dosage / Q000097:blood / Q000493:pharmacokinetics
chemical_list: D001786:Blood Glucose; D007328:Insulin; D011994:Recombinant Proteins; D007334:Insulin-Like Growth Factor I