Outpatient Clinical Trial in Dogs With Leptospirosis Treated With Enrofloxacin Hydrochloride-Dihydrate (ENRO-C)

Pharmacokinetics of enrofloxacin HCl-2H2O (enro-C) in dogs and Monte-Carlo simulations against Leptospira spp. prompted a clinical study to treat the clinically apparent phase of this disease. Leptospirosis was diagnosed by real-time PCR from blood, micro-agglutination titers (MAT), clinical signs a...

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Main Authors: Lilia Gutierrez, Jesús Mendoza, Ana Bertha Rangel, Graciela Tapia, Maria Josefa Bernad, Hector Sumano
Format: Article
Language:English
Published: Frontiers Media S.A. 2019-10-01
Series:Frontiers in Veterinary Science
Subjects:
Online Access:https://www.frontiersin.org/article/10.3389/fvets.2019.00360/full
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author Lilia Gutierrez
Jesús Mendoza
Ana Bertha Rangel
Graciela Tapia
Maria Josefa Bernad
Hector Sumano
author_facet Lilia Gutierrez
Jesús Mendoza
Ana Bertha Rangel
Graciela Tapia
Maria Josefa Bernad
Hector Sumano
author_sort Lilia Gutierrez
collection DOAJ
description Pharmacokinetics of enrofloxacin HCl-2H2O (enro-C) in dogs and Monte-Carlo simulations against Leptospira spp. prompted a clinical study to treat the clinically apparent phase of this disease. Leptospirosis was diagnosed by real-time PCR from blood, micro-agglutination titers (MAT), clinical signs and blood parameters of the liver and kidney. In order to determine the clinical ability of the participants to diagnose leptospirosis on the first exam and establish an early treatment to avoid excessive organ damage, patients were clinically classified as: high-risk or medium-risk. Forty-five dogs were included in this trial (from 2017 to early 2019). The treatment consisted of IM injections of a 5% aqueous enro-C suspension (10 mg/kg/day) for 10 days, and subsequently enro-C was administered orally for another 7 days in gelatin capsules. Thirty-four high-risk and 11 medium-risk dogs were treated, including 6 puppies (4 high-risk with ages between 6 to 10 months and 2 medium-risk dogs with an average age of 6 and 7 months). Other ages ranged from 1 to 5 years. Fifteen cases had a history of having received prior treatment with other antibiotics, including all puppies. The clinical diagnostic error was 13.5% (7/52 cases), and only one of the misdiagnosed dogs had been classified as a high-risk patient. Three to 5 days after finishing treatment with enro-C, 82.2% of the dogs were negative to real-time PCR from urine samples and 100% negativity was observed on day 30 after treatment, when antibody titrations dropped to 1:100–1:200. Based on the absence of clinical signs, real-time PCR, and MAT titers, all treated dogs were considered as successful treatments. Within 6–24 months of clinical follow-up, no relapses were recorded. Adverse effects were inconsequential. This study represents the first report of a successful treatment of canine leptospirosis using a fluoroquinolone, and due to its efficacy, it is suggested that enro-C be considered as a viable option for the treatment of this disease.
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spelling doaj.art-8bea231556304e55ac7cfc6fcd02a51d2022-12-21T17:26:45ZengFrontiers Media S.A.Frontiers in Veterinary Science2297-17692019-10-01610.3389/fvets.2019.00360485848Outpatient Clinical Trial in Dogs With Leptospirosis Treated With Enrofloxacin Hydrochloride-Dihydrate (ENRO-C)Lilia Gutierrez0Jesús Mendoza1Ana Bertha Rangel2Graciela Tapia3Maria Josefa Bernad4Hector Sumano5Department of Physiology and Pharmacology, Veterinary Medicine Faculty, National Autonomous University of Mexico, Mexico City, MexicoDepartment of Physiology and Pharmacology, Veterinary Medicine Faculty, National Autonomous University of Mexico, Mexico City, MexicoDepartment of Physiology and Pharmacology, Veterinary Medicine Faculty, National Autonomous University of Mexico, Mexico City, MexicoDepartment of Genetics and Biostatistics, Veterinary Medicine Faculty, National Autonomous University of Mexico, Mexico City, MexicoDepartment of Pharmacy, Chemistry Faculty, National Autonomous University of Mexico, Mexico City, MexicoDepartment of Physiology and Pharmacology, Veterinary Medicine Faculty, National Autonomous University of Mexico, Mexico City, MexicoPharmacokinetics of enrofloxacin HCl-2H2O (enro-C) in dogs and Monte-Carlo simulations against Leptospira spp. prompted a clinical study to treat the clinically apparent phase of this disease. Leptospirosis was diagnosed by real-time PCR from blood, micro-agglutination titers (MAT), clinical signs and blood parameters of the liver and kidney. In order to determine the clinical ability of the participants to diagnose leptospirosis on the first exam and establish an early treatment to avoid excessive organ damage, patients were clinically classified as: high-risk or medium-risk. Forty-five dogs were included in this trial (from 2017 to early 2019). The treatment consisted of IM injections of a 5% aqueous enro-C suspension (10 mg/kg/day) for 10 days, and subsequently enro-C was administered orally for another 7 days in gelatin capsules. Thirty-four high-risk and 11 medium-risk dogs were treated, including 6 puppies (4 high-risk with ages between 6 to 10 months and 2 medium-risk dogs with an average age of 6 and 7 months). Other ages ranged from 1 to 5 years. Fifteen cases had a history of having received prior treatment with other antibiotics, including all puppies. The clinical diagnostic error was 13.5% (7/52 cases), and only one of the misdiagnosed dogs had been classified as a high-risk patient. Three to 5 days after finishing treatment with enro-C, 82.2% of the dogs were negative to real-time PCR from urine samples and 100% negativity was observed on day 30 after treatment, when antibody titrations dropped to 1:100–1:200. Based on the absence of clinical signs, real-time PCR, and MAT titers, all treated dogs were considered as successful treatments. Within 6–24 months of clinical follow-up, no relapses were recorded. Adverse effects were inconsequential. This study represents the first report of a successful treatment of canine leptospirosis using a fluoroquinolone, and due to its efficacy, it is suggested that enro-C be considered as a viable option for the treatment of this disease.https://www.frontiersin.org/article/10.3389/fvets.2019.00360/fulltreatmentleptospirosisdogsenrofloxacin hydrochloride-dihydrateenro-C
spellingShingle Lilia Gutierrez
Jesús Mendoza
Ana Bertha Rangel
Graciela Tapia
Maria Josefa Bernad
Hector Sumano
Outpatient Clinical Trial in Dogs With Leptospirosis Treated With Enrofloxacin Hydrochloride-Dihydrate (ENRO-C)
Frontiers in Veterinary Science
treatment
leptospirosis
dogs
enrofloxacin hydrochloride-dihydrate
enro-C
title Outpatient Clinical Trial in Dogs With Leptospirosis Treated With Enrofloxacin Hydrochloride-Dihydrate (ENRO-C)
title_full Outpatient Clinical Trial in Dogs With Leptospirosis Treated With Enrofloxacin Hydrochloride-Dihydrate (ENRO-C)
title_fullStr Outpatient Clinical Trial in Dogs With Leptospirosis Treated With Enrofloxacin Hydrochloride-Dihydrate (ENRO-C)
title_full_unstemmed Outpatient Clinical Trial in Dogs With Leptospirosis Treated With Enrofloxacin Hydrochloride-Dihydrate (ENRO-C)
title_short Outpatient Clinical Trial in Dogs With Leptospirosis Treated With Enrofloxacin Hydrochloride-Dihydrate (ENRO-C)
title_sort outpatient clinical trial in dogs with leptospirosis treated with enrofloxacin hydrochloride dihydrate enro c
topic treatment
leptospirosis
dogs
enrofloxacin hydrochloride-dihydrate
enro-C
url https://www.frontiersin.org/article/10.3389/fvets.2019.00360/full
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