Quinacrine Treatment of Nitroimidazole-Refractory Giardiasis

BACKGROUND: Limited evidence exists on efficacy and tolerability of quinacrine for nitroimidazole-refractory giardiasis. METHODS: Nitroimidazole-refractory giardiasis cases, defined as microbiologically (microscopy and/or PCR) confirmed treatment failure after 2 courses, during 2008–2020, were retro...

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Detalles Bibliográficos
Autores principales: Ydsten, Karin A, Hellgren, Urban, Asgeirsson, Hilmir
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Oxford University Press 2021
Materias:
Major Articles and Brief Reports
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9113433/
https://www.ncbi.nlm.nih.gov/pubmed/34036328
http://dx.doi.org/10.1093/infdis/jiab287
Descripción
Sumario:BACKGROUND: Limited evidence exists on efficacy and tolerability of quinacrine for nitroimidazole-refractory giardiasis. METHODS: Nitroimidazole-refractory giardiasis cases, defined as microbiologically (microscopy and/or PCR) confirmed treatment failure after 2 courses, during 2008–2020, were retrospectively identified. RESULTS: Of 87 patients, 54 (62%) had visited India. Quinacrine was used in 54 (62%); 51 received monotherapy and 3 combined with metronidazole. Only 3 had positive stool samples with persisting symptoms after quinacrine treatment (94% parasitological efficacy) and all were cured after a second treatment. One (1.9%) had mild adverse effects recorded. CONCLUSIONS: Quinacrine is an effective treatment for nitroimidazole-refractory giardiasis with good tolerability.

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