Plasma itraconazole concentrations during treatment of feline sporotrichosis.

Autor: Pereira-Oliveira GR; Laboratory of Clinical Research on Dermatozoonoses in Domestic Animals, Oswaldo Cruz Foundation (Fiocruz), Rio de Janeiro, Brazil., Gremião IDF; Laboratory of Clinical Research on Dermatozoonoses in Domestic Animals, Oswaldo Cruz Foundation (Fiocruz), Rio de Janeiro, Brazil., Corrêa ML; Laboratory of Clinical Research on Dermatozoonoses in Domestic Animals, Oswaldo Cruz Foundation (Fiocruz), Rio de Janeiro, Brazil., Caroline Dos Santos Honorato C; Laboratory of Clinical Research on Dermatozoonoses in Domestic Animals, Oswaldo Cruz Foundation (Fiocruz), Rio de Janeiro, Brazil., Gonçalves Viana P; Laboratory of Clinical Research on Dermatozoonoses in Domestic Animals, Oswaldo Cruz Foundation (Fiocruz), Rio de Janeiro, Brazil., Figueiredo ABF; Laboratory of Clinical Research on Dermatozoonoses in Domestic Animals, Oswaldo Cruz Foundation (Fiocruz), Rio de Janeiro, Brazil., Boechat JS; Laboratory of Clinical Research on Dermatozoonoses in Domestic Animals, Oswaldo Cruz Foundation (Fiocruz), Rio de Janeiro, Brazil., Guerino Dos Reis É; Biosafety Advisory, Quality Vice-Directory, The Institute of Technology on Immunobiologicals (Bio-Manguinhos), Oswaldo Cruz Foundation (Fiocruz), Rio de Janeiro, Brazil., Oliveira RVC; Laboratory of Clinical Epidemiology, Evandro Chagas National Institute of Infectious Diseases, Oswaldo Cruz Foundation, Rio de Janeiro, Brazil., da Silva ACA; Equivalence and Pharmacokinetics Service (Sefar), Oswaldo Cruz Foundation (Fiocruz), Rio de Janeiro, Brazil., Novotny TS; Medicines Sector, National Institute for Quality Control in Health (INCQS), Oswaldo Cruz Foundation (Fiocruz), Rio de Janeiro, Brazil., Guaraldo L; Clinical Research Laboratory on Acute Febrile Illnesses, Evandro Chagas National Institute of Infectious Diseases, Oswaldo Cruz Foundation (Fiocruz), Rio de Janeiro, Brazil., Pereira SA; Laboratory of Clinical Research on Dermatozoonoses in Domestic Animals, Oswaldo Cruz Foundation (Fiocruz), Rio de Janeiro, Brazil.
Jazyk: angličtina
Zdroj: Medical mycology [Med Mycol] 2024 Aug 02; Vol. 62 (8).
DOI: 10.1093/mmy/myae076
Abstrakt: Itraconazole (ITZ) is the most used drug to treat feline sporotrichosis; however, little is known about its pharmacokinetics in cats with this mycosis. The aim of this study was to determine plasma ITZ concentrations in cats with sporotrichosis treated with ITZ as monotherapy or in combination with potassium iodide (KI). Cats diagnosed with sporotrichosis received orally ITZ (100 mg/cat/day) or combination therapy with ITZ (100 mg/cat/day) and KI (2.5-5 mg/kg/day) in the case of worsening or stagnation of the clinical condition. At each monthly visit, blood samples were collected at an interval of 4 h for analysis of trough and peak plasma ITZ concentrations by HPLC. Clinical features and laboratory parameters were evaluated during follow-up. Sixteen cats were included in the study. The median plasma ITZ concentration of all cats was 0.75 µg/mL. The median plasma ITZ concentration was 0.5 µg/mL in cats that received ITZ monotherapy (n = 12) and 1.0 µg/mL in those treated with ITZ + KI (n = 4). The clinical cure rate was 56.3% (n = 9) and the median treatment duration was 8 weeks. Nine cats (56.3%) developed adverse clinical reactions, and hyporexia was the most frequent (n = 8; 88.9%). Serum alanine aminotransferase was elevated in four cats (25%). The median plasma ITZ concentration detected in cats was considered to be therapeutic (>0.5 µg/mL) and was reached after 4 weeks of treatment. Plasma ITZ concentrations were higher in cats that received ITZ + KI compared to those treated only with ITZ, suggesting pharmacokinetic synergism between these drugs.
(© The Author(s) 2024. Published by Oxford University Press on behalf of The International Society for Human and Animal Mycology.)
Databáze: MEDLINE