Pharmacological limitations of phage therapy

Clinical trial results of phage treatment of bacterial infections show a low to moderate efficacy, and the variation in infection clearance between subjects within studies is often large. Phage therapy is complicated and introduces many additional components of variance as compared to antibiotic tre...

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Main Author: Anders S. Nilsson
Format: Article
Language:English
Published: Upsala Medical Society 2019-10-01
Series:Upsala Journal of Medical Sciences
Subjects:
Online Access:http://dx.doi.org/10.1080/03009734.2019.1688433
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author Anders S. Nilsson
author_facet Anders S. Nilsson
author_sort Anders S. Nilsson
collection DOAJ
description Clinical trial results of phage treatment of bacterial infections show a low to moderate efficacy, and the variation in infection clearance between subjects within studies is often large. Phage therapy is complicated and introduces many additional components of variance as compared to antibiotic treatment. A large part of the variation is due to in vivo pharmacokinetics and pharmacodynamics being virtually unknown, but also to a lack of standardisation. This is a consequence of the great variation of phages, bacteria, and infections, which results in different experiments or trials being impossible to compare, and difficulties in estimating important parameter values in a quantitative and reproducible way. The limitations of phage therapy will have to be recognised and future research focussed on optimising infection clearance rates by e.g. selecting phages, bacteria, and target bacterial infections where the prospects of high efficacy can be anticipated, and by combining information from new mathematical modelling of in vivo pharmacokinetic and pharmacodynamic processes and quantitatively assessed experiments.
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spelling doaj.art-daa9032e15584ccdb6e7dfc4c9f12cdc2023-09-02T09:31:11ZengUpsala Medical SocietyUpsala Journal of Medical Sciences0300-97342000-19672019-10-01124421822710.1080/03009734.2019.16884331688433Pharmacological limitations of phage therapyAnders S. Nilsson0Stockholm UniversityClinical trial results of phage treatment of bacterial infections show a low to moderate efficacy, and the variation in infection clearance between subjects within studies is often large. Phage therapy is complicated and introduces many additional components of variance as compared to antibiotic treatment. A large part of the variation is due to in vivo pharmacokinetics and pharmacodynamics being virtually unknown, but also to a lack of standardisation. This is a consequence of the great variation of phages, bacteria, and infections, which results in different experiments or trials being impossible to compare, and difficulties in estimating important parameter values in a quantitative and reproducible way. The limitations of phage therapy will have to be recognised and future research focussed on optimising infection clearance rates by e.g. selecting phages, bacteria, and target bacterial infections where the prospects of high efficacy can be anticipated, and by combining information from new mathematical modelling of in vivo pharmacokinetic and pharmacodynamic processes and quantitatively assessed experiments.http://dx.doi.org/10.1080/03009734.2019.1688433bacteriophagephage therapypharmacodynamicspharmacokineticspharmacology
spellingShingle Anders S. Nilsson
Pharmacological limitations of phage therapy
Upsala Journal of Medical Sciences
bacteriophage
phage therapy
pharmacodynamics
pharmacokinetics
pharmacology
title Pharmacological limitations of phage therapy
title_full Pharmacological limitations of phage therapy
title_fullStr Pharmacological limitations of phage therapy
title_full_unstemmed Pharmacological limitations of phage therapy
title_short Pharmacological limitations of phage therapy
title_sort pharmacological limitations of phage therapy
topic bacteriophage
phage therapy
pharmacodynamics
pharmacokinetics
pharmacology
url http://dx.doi.org/10.1080/03009734.2019.1688433
work_keys_str_mv AT anderssnilsson pharmacologicallimitationsofphagetherapy