Misoprostol is superior to combined omeprazole‐sucralfate for the treatment of equine gastric glandular disease

summary of:
Misoprostol is superior to combined omeprazole‐sucralfate for the treatment of equine gastric glandular disease
G. Varley, I.M. Bowen, J.L. Habershon-Butcher, V. Nicholls and G.D. Hallowell
Published in:
Feb 2019
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In our edition of: Jun 2019
In our categories of: equine

our summary:

Varley, G. et al. (2019) Misoprostol is superior to combined omeprazole-sucralfate for the treatment of equine gastric glandular disease. Equine Veterinary Journal, [early view]

The aim of this prospective clinical study was to evaluate the efficacy of two treatments, misoprostol and combined omeprazole-sucralfate, for equine gastric glandular disease (EGGD).

Horses were included in the study if they had clinical signs of equine gastric disease, which was then identified as at least grade 1 glandular disease by gastroscopy. Horses were assigned to one of two treatment groups: either 5 μg/kg of misoprostol orally twice daily (M group) or 4 mg/kg enteric‐coated omeprazole orally once daily combined with 12 mg/kg sucralfate orally twice daily (OS group).

A repeat gastroscopy was carried out 28 to 35 days after the initial examination.  Clinicians blinded to the treatment received reviewed images from the gastroscopies.  Owners, who were not blinded to treatment, were asked to complete a questionnaire before and after treatment. Lesion healing was considered to have improved if the grade decreased by at least one point from the initial grading score and to have healed if it was graded 0 at the repeat gastroscopy.

Sixty-three horses, aged between 4 and 19 years, met the inclusion criteria based on the results of a gastroscopic examination.  Forty-three horses were allocated to the M group and 20 horses to the OS group.

There was a decrease in lesion score in both treatment groups. Of horses treated with misoprostol 72% of the lesions healed, compared to 20% of the omeprazole-sucralfate group.  In addition, 98% of the misoprostol group improved, compared with 65% in the omeprazole-sucralfate group.

Limitations to the study included the small study population.

Take Home

Equine gastric glandular disease is a relatively common condition in horses.  This study shows that in this population of horses misoprostol was superior to combined omeprazole-sucralfate and may therefore offer another treatment option for EGGD.   In the UK, there are currently no licensed drugs for the management of EGGD; under the prescribing cascade, misoprostol is a first‐line drug for the management of EGGD.

As misoprostol can be used to terminate early pregnancy, guidance should be given to clients regarding handling and storage of misoprostol, and appropriate informed consent should be in place.

Image copyright attribute: Eduardo Gonzalez Diaz

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