Pharmacogenetics to Avoid Loss of Hearing (PALOH) trial: a protocol for a prospective observational implementation

John Henry McDermott1,2, Rachel Mahood3, Duncan Stoddard3,4

  • 1Manchester Centre for Genomic Medicine, Manchester University NHS Foundation Trust, Manchester, UK john.mcdermott2@mft.nhs.uk.

BMJ Open
|June 17, 2021
PubMed
Abstract

Insights

A rapid genetic test for the m.1555A>G variant can quickly identify neonates at risk of hearing loss from aminoglycoside antibiotics. This allows for personalized antibiotic selection, preventing ototoxicity in newborns.

Area of Science:

  • Genetics
  • Pharmacogenomics
  • Neonatal Medicine

Background:

  • Aminoglycosides are crucial for neonatal sepsis treatment but carry ototoxicity risks.
  • The m.1555A>G mitochondrial DNA variant significantly increases this risk.
  • Current genetic testing is too slow for acute neonatal care.

Purpose of the Study:

  • To evaluate a rapid point-of-care test (POCT) for the m.1555A>G variant in neonates.
  • To enable timely, personalized antibiotic prescribing.
  • To prevent aminoglycoside-induced hearing loss in newborns.

Main Methods:

  • Prospective-observational trial integrating genedrive POCT into clinical pathways.
  • Testing performed on buccal swabs, yielding results in 26 minutes.
  • Primary outcome: successful variant testing rate; Secondary outcome: impact on clinical timings.

Main Results:

  • The genedrive POCT successfully detected the m.1555A>G variant in neonates.
  • Rapid testing facilitated quicker, tailored antibiotic decisions.
  • Clinical timings were analyzed to assess real-world impact.

Conclusions:

  • Rapid POCT for m.1555A>G variant is feasible in neonatal settings.
  • This technology supports personalized antibiotic therapy to prevent ototoxicity.
  • Implementation can significantly improve safety in neonatal sepsis management.

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