Clinical trial Recruiting at 1 site Observational Ages 0 Days to 7 Days

Gentamicin dosing in neonates: checking if extended-interval dosing still works

Official title: Extended Interval Dosing of Gentamicin in Neonates to Achieve Target Drug Concentrations

Run by London Health Sciences Centre Research Institute OR Lawson Research Institute of St. Joseph's · NCT07460349 · Data updated 2026-11-12

This study checks whether extended-interval gentamicin dosing in newborns up to 7 days old still achieves safe and effective drug levels.

Quick facts

Study typeObservational
Ages0 Days to 7 Days
SexAll
Enrollment42 (estimated)
SponsorLondon Health Sciences Centre Research Institute OR Lawson Research Institute of St. Joseph's
Academic / other
Locations1 site (London, Ontario)
StatusRecruiting
StartedJune 17, 2026
Main results expectedDecember 2026
Study endsApril 2027
Registry record updatedOctober 1, 2026
Trial IDNCT07460349 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Neonates up to 7 days old receiving gentamicin and with available trough and peak levels for the third dose.

Probably not a fit

Neonates without complete gentamicin level data or with exclusion criteria such as baseline renal dysfunction or concurrent nephrotoxic/ototoxic drugs may not benefit.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This observational study collects current gentamicin trough and peak levels from neonates up to 7 days old who are treated with either 3 mg/kg every 24 hours or 3.5 mg/kg every 24 hours. It compares these results with historic dosing data from the same center to see if target drug concentrations are being reached. The study also screens for kidney or hearing effects that could be related to gentamicin exposure. Enrollment relies on standard care administration and uses a letter of information with parental consent where appropriate. Findings could inform whether the current dosing guidelines remain appropriate and whether formal updates or guidelines are needed for local practice.

Why it matters

Potential benefit: If the extended-interval dosing is confirmed to be safe and effective, clinicians may have greater confidence in using this regimen for neonates.

How similar studies have gone: Previous local work suggested extended-interval dosing could yield better concentrations, but formal publication and external validation are lacking.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Neonates up to 7 days of age,
* Neonate must be on gentamicin, and
* Gentamicin trough and peak levels must be available for the third dose of gentamicin.

Exclusion Criteria:

* Incorrect dose for weight (+/- 10% allowed to account for dose rounding)
* Multiple levels from the same patient; only the first set of levels will be collected
* Baseline renal dysfunction (e.g. congenital kidney disease)
* On other nephrotoxic or ototoxic drugs concurrently with the first 3 days of gentamicin

Where it's running

  • Children's Hospital: London Health Sciences Centre
    London, Ontario, Canada
    Recruiting

Study contacts

  • Principal investigator: Venita Harris, PharmD — London Health Sciences Centre
  • Study coordinator: Sarah H.P. Vo, PharmD
  • Email: sarah.vo@lhsc.on.ca
  • Phone: 519-685-8500

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How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.