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  • Title: The somatostatin analogue SMS 201-995 in acromegaly: prolonged, preferential suppression of growth hormone but not pancreatic hormones.
    Author: George SR, Hegele RA, Burrow GN.
    Journal: Clin Invest Med; 1987 Jul; 10(4):309-15. PubMed ID: 2888554.
    Abstract:
    The treatment of acromegaly is not optimal at present, since many patients have continued growth hormone hypersecretion. We report the acute effects of a cyclic octapeptide analogue of somatostatin, SMS 201-995 (Sandoz) in 9 nondiabetic, acromegalic patients between the ages of 30 and 74. We report potent and prolonged dose-dependent effects to suppress growth hormone secretion. A single 50 micrograms dose of SMS 201-995 inhibited growth hormone concentration rapidly within 15 minutes, with maximal effect in 75 minutes. Maximal inhibition was of the order of 80%, with absolute concentrations under 2 micrograms/L for about 6 hours in 5 of 7 patients. Growth hormone concentrations remained significantly suppressed below placebo control for up to 24 hours after a single dose of SMS 201-995, but the inhibitory effects on insulin and C-peptide concentrations were limited to 2 hours. The effects on glucagon secretion were minimal, and also evident for only 2 hours. Mild transient postprandial elevations of plasma glucose and FFA were documented. No adverse effects were noted; routine hematology, biochemistry, and vital signs were not altered. Thus SMS 201-995, with preferential effects at the pituitary somatotroph, holds considerable promise as an attractive and viable alternative for treatment of acromegaly.
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