MJA
MJA

Phage therapy for severe bacterial infections: a narrative review

Aleksandra Petrovic Fabijan, Ali Khalid, Susan Maddocks, Josephine Ho, Timothy Gilbey, Indy Sandaradura, Ruby CY Lin, Nouri Ben Zakour, Carola Venturini, Bethany Bowring and Jonathan R Iredell
Med J Aust 2020; 212 (6): . || doi: 10.5694/mja2.50355
Published online: 7 October 2019

Summary

  • Bacteriophage (phage) therapy is re‐emerging a century after it began.
  • Activity against antibiotic‐resistant pathogens and a lack of serious side effects make phage therapy an attractive treatment option in refractory bacterial infections.
  • Phages are highly specific for their bacterial targets, but the relationship between in vitro activity and in vivo efficacy remains to be rigorously evaluated.
  • Pharmacokinetic and pharmacodynamic principles of phage therapy are generally based on the classic predator–prey relationship, but numerous other factors contribute to phage clearance and optimal dosing strategies remain unclear.
  • Combinations of fully characterised, exclusively lytic phages prepared under good manufacturing practice are limited in their availability.
  • Safety has been demonstrated but randomised controlled trials are needed to evaluate efficacy.
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