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Pasireotide for the Medical Management of Feline Hypersomatotropism.

Pasireotide for the Medical Management of Feline Hypersomatotropism.

Authors :
Scudder CJ
Gostelow R
Forcada Y
Schmid HA
Church D
Niessen SJ
Source :
Journal of veterinary internal medicine [J Vet Intern Med] 2015 Jul-Aug; Vol. 29 (4), pp. 1074-80. Date of Electronic Publication: 2015 May 06.
Publication Year :
2015

Abstract

Background: Feline hypersomatotropism (HST) is a cause of diabetes mellitus in cats. Pasireotide is a novel multireceptor ligand somatostatin analog that improves biochemical control of humans with HST.<br />Hypothesis/objectives: Pasireotide improves biochemical control of HST and diabetes mellitus in cats.<br />Animals: Hypersomatotropism was diagnosed in diabetic cats with serum insulin-like growth factor-1 (IGF-1) concentration >1,000 ng/mL by radioimmunoassay and pituitary enlargement.<br />Methods: Insulin-like growth factor 1 was measured and glycemic control assessed using a 12-hour blood glucose curve on days 1 and 5. On days 2, 3, and 4, cats received 0.03 mg/kg pasireotide SC q12h. IGF-1, insulin dose, and estimated insulin sensitivity (product of the area under the blood glucose curve [BGC] and insulin dose) were compared pre- and post treatment. Paired t-tests or Wilcoxon signed rank tests were employed for comparison where appropriate; a linear mixed model was created to compare BGC results.<br />Results: Insulin-like growth factor 1 decreased in all 12 cats that completed the study (median [range] day 1: 2,000 ng/mL [1,051-2,000] and day 5: 1,105 ng/mL [380-1,727], P = .002, Wilcoxon signed rank test). Insulin dose was lower on day 5 than on day 1 (mean reduction 1.3 [0-2.7] units/kg/injection, P = .003, paired t-test). The product of insulin dose and area under the BGC was lower on day 5 than day 1 (difference of means: 1,912; SD, 1523; u × mg/dL × hours, P = .001; paired t-test). No clinically relevant adverse effects were encountered.<br />Conclusions: Short-acting pasireotide rapidly decreased IGF-1 in cats with HST and insulin-dependent diabetes. The decrease in IGF-1 was associated with increased insulin sensitivity.<br /> (Copyright © 2015 The Authors. Journal of Veterinary Internal Medicine published by Wiley Periodicals, Inc. on behalf of the American College of Veterinary Internal Medicine.)

Details

Language :
English
ISSN :
1939-1676
Volume :
29
Issue :
4
Database :
MEDLINE
Journal :
Journal of veterinary internal medicine
Publication Type :
Academic Journal
Accession number :
25945588
Full Text :
https://doi.org/10.1111/jvim.12608