Treatment of 46 cats with porcine lente insulin - a prospective, multicentre study

Michiels, L and Reusch, C E and Boari, A and Petrie, G and Mandigers, P and Thollot, I G and Rosenberg, D and Mooney, C and Bonfanti, U and Font, A and Sparkes, A and Bewig, K and Clercx, C and Jensen, A L and Horspool, L J I (2008) Treatment of 46 cats with porcine lente insulin - a prospective, multicentre study. JOURNAL OF FELINE MEDICINE AND SURGERY, 10 (5). pp. 439-451.

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This prospective, multicentre, non-blinded, open study followed 46 cats with diabetes mellitus during treatment with porcine lente insulin (also known as porcine insulin zinc suspension, Caninsulin (R), Intervet) for 16 1 weeks (stabilization phase), with additional monitoring of some cats (n = 23) for a variable period. At least three of the following were present at initial presentation: appropriate history of clinical signs consistent with diabetes mellitus, glucosuria, blood glucose greater than 15 mmol/l and fructosamine greater than 380 mu mol/l. Insulin treatment was started at a dose rate of 0.25-0.5 IU/kg body weight twice daily, with a maximum starting dose of 2 IU/ injection. Twenty-eight of the cats were classed as reaching clinical stability during the study, in 23 of these cats this was during the stabilization phase. Seven cats went into remission during the stabilization phase and one of the cats in week 56. Clinical signs of hypoglycaemia, significantly associated with a dose of 3 units or 0.5 IU/kg or more per cat (twice daily), were observed in nine of the 46 cats during the stabilization phase and concomitant biochemical hypoglycaemia was recorded in most cases. Biochemical hypoglycaemia, recorded in 6% of the blood glucose curves performed during the stabilization phase, was significantly associated with a dose rate of 0.75 IU/kg or more twice daily. This further highlights the need for cautious stepwise changes in insulin dose. The protocol used in the present study is suitable for and easy to use in practice. This study confirmed the efficacy and safety of porcine lente insulin (Caninsulin) in diabetic cats under field conditions. (C) 2008 ESFM and AAFR Published by Elsevier Ltd. All rights reserved.

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