IGF1 and acromegaly: Hormonal parameters showed IGF-1 to be 20.1 nmol/l (normal range: 14–40.5), serum GH during OGTT was: 0 min 2.7 mUI/l; 60 min 1.6 mUI/l; 120 min 1.4 mUI/l (criteria for acromegaly control: basal GH<1 ng/ml (3 mIU/l) and <0.4 ng/ml (1.2 mIU/l) during OGTT11).