Mycophenolate mofetil as a treatment for presumed idiopathic chronic hepatitis in dogs: Six cases (2010–2022)

Abstract Objectives The objectives of this study were to describe the clinical findings, treatment and outcomes of six dogs with presumed idiopathic chronic hepatitis treated with mycophenolate mofetil (MMF). Materials and Methods Medical records were retrospectively searched to identify dogs in whi...

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Main Authors: Michelle K. Beehler, Shawn A. Kearns, Zachary J. Crouse
Format: Article
Language:English
Published: Wiley 2023-11-01
Series:Veterinary Medicine and Science
Subjects:
Online Access:https://doi.org/10.1002/vms3.1261
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author Michelle K. Beehler
Shawn A. Kearns
Zachary J. Crouse
author_facet Michelle K. Beehler
Shawn A. Kearns
Zachary J. Crouse
author_sort Michelle K. Beehler
collection DOAJ
description Abstract Objectives The objectives of this study were to describe the clinical findings, treatment and outcomes of six dogs with presumed idiopathic chronic hepatitis treated with mycophenolate mofetil (MMF). Materials and Methods Medical records were retrospectively searched to identify dogs in which idiopathic chronic hepatitis was diagnosed on histopathology between January 2010 and June 2022 that were treated with MMF for at least two weeks with >2 follow‐up examinations. Data recorded from each dog included signalment, clinical signs, diagnostic test results and treatment. Results Six dogs were treated with MMF at a median initial dosage of 9.6 mg/kg PO q 12 h. Reported adverse effects from MMF included decreased appetite, vomiting and diarrhoea. In all six dogs, MMF was used successfully long term for the treatment of idiopathic chronic hepatitis as determined by 46% or greater improvement of alanine aminotransferase (ALT) between 4 and 18 weeks of starting MMF. Three dogs were also temporarily treated for 4–6 months on a tapering dose of prednisone. In two dogs, ALT remained within the reference interval, and in one dog, it was very mildly elevated when on MMF alone. In all six dogs, owners reported that the medication was well tolerated. Clinical significance To the authors’ knowledge, this is the first report describing the use of MMF with and without a tapering dose of prednisone for the treatment of idiopathic chronic hepatitis in six dogs. Based on the outcomes of the dogs in this report, MMF can be effective for the long‐term treatment of idiopathic chronic hepatitis as measured by reduction in ALT and improvement of clinical signs.
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spelling doaj.art-8f0977e12a9448b3b33e67b6265ada412023-11-15T15:57:30ZengWileyVeterinary Medicine and Science2053-10952023-11-01962527253310.1002/vms3.1261Mycophenolate mofetil as a treatment for presumed idiopathic chronic hepatitis in dogs: Six cases (2010–2022)Michelle K. Beehler0Shawn A. Kearns1Zachary J. Crouse2Department of Internal Medicine Angell Animal Medical Center Boston Massachusetts USADepartment of Internal Medicine Angell Animal Medical Center Boston Massachusetts USADepartment of Internal Medicine Angell Animal Medical Center Boston Massachusetts USAAbstract Objectives The objectives of this study were to describe the clinical findings, treatment and outcomes of six dogs with presumed idiopathic chronic hepatitis treated with mycophenolate mofetil (MMF). Materials and Methods Medical records were retrospectively searched to identify dogs in which idiopathic chronic hepatitis was diagnosed on histopathology between January 2010 and June 2022 that were treated with MMF for at least two weeks with >2 follow‐up examinations. Data recorded from each dog included signalment, clinical signs, diagnostic test results and treatment. Results Six dogs were treated with MMF at a median initial dosage of 9.6 mg/kg PO q 12 h. Reported adverse effects from MMF included decreased appetite, vomiting and diarrhoea. In all six dogs, MMF was used successfully long term for the treatment of idiopathic chronic hepatitis as determined by 46% or greater improvement of alanine aminotransferase (ALT) between 4 and 18 weeks of starting MMF. Three dogs were also temporarily treated for 4–6 months on a tapering dose of prednisone. In two dogs, ALT remained within the reference interval, and in one dog, it was very mildly elevated when on MMF alone. In all six dogs, owners reported that the medication was well tolerated. Clinical significance To the authors’ knowledge, this is the first report describing the use of MMF with and without a tapering dose of prednisone for the treatment of idiopathic chronic hepatitis in six dogs. Based on the outcomes of the dogs in this report, MMF can be effective for the long‐term treatment of idiopathic chronic hepatitis as measured by reduction in ALT and improvement of clinical signs.https://doi.org/10.1002/vms3.1261search termshepatitishepatic diseasedog
spellingShingle Michelle K. Beehler
Shawn A. Kearns
Zachary J. Crouse
Mycophenolate mofetil as a treatment for presumed idiopathic chronic hepatitis in dogs: Six cases (2010–2022)
Veterinary Medicine and Science
search terms
hepatitis
hepatic disease
dog
title Mycophenolate mofetil as a treatment for presumed idiopathic chronic hepatitis in dogs: Six cases (2010–2022)
title_full Mycophenolate mofetil as a treatment for presumed idiopathic chronic hepatitis in dogs: Six cases (2010–2022)
title_fullStr Mycophenolate mofetil as a treatment for presumed idiopathic chronic hepatitis in dogs: Six cases (2010–2022)
title_full_unstemmed Mycophenolate mofetil as a treatment for presumed idiopathic chronic hepatitis in dogs: Six cases (2010–2022)
title_short Mycophenolate mofetil as a treatment for presumed idiopathic chronic hepatitis in dogs: Six cases (2010–2022)
title_sort mycophenolate mofetil as a treatment for presumed idiopathic chronic hepatitis in dogs six cases 2010 2022
topic search terms
hepatitis
hepatic disease
dog
url https://doi.org/10.1002/vms3.1261
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AT zacharyjcrouse mycophenolatemofetilasatreatmentforpresumedidiopathicchronichepatitisindogssixcases20102022