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 type | Observational |
|---|---|
| Ages | 0 Days to 7 Days |
| Sex | All |
| Enrollment | 42 (estimated) |
| Sponsor | London Health Sciences Centre Research Institute OR Lawson Research Institute of St. Joseph's Academic / other |
| Locations | 1 site (London, Ontario) |
| Status | Recruiting |
| Started | June 17, 2026 |
| Main results expected | December 2026 |
| Study ends | April 2027 |
| Registry record updated | October 1, 2026 |
| Trial ID | NCT07460349 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
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.