NCT05770622

Brief Summary

A challenge to intermittent vancomycin dosing in young infants is the avoidable delay caused by the need to wait until steady state (i.e. when the drug concentrations are in equilibrium) to measure a vancomycin concentration, as this generally occurs 24 to 48 hours after starting treatment. If the target concentration is not achieved, the dose needs to be adjusted, resulting in further delays in an infant achieving the concentration required to treat their infection. The purpose of this study is to assess the use of early therapeutic drug monitoring (first-dose trough) and, if needed, early dose adjustment, in achieving target vancomycin concentrations at steady state. A dose adjustment calculator (available through a web application) will be used to determine the need for dose adjustment (based on predicted steady state concentration) and recommend an adjusted dose if required.

Trial Health

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
40

participants targeted

Target at below P25 for phase_4 sepsis

Timeline
11mo left

Started Nov 2024

Typical duration for phase_4 sepsis

Geographic Reach
1 country

4 active sites

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress62%
Nov 2024Apr 2027

First Submitted

Initial submission to the registry

March 5, 2023

Completed
10 days until next milestone

First Posted

Study publicly available on registry

March 15, 2023

Completed
1.7 years until next milestone

Study Start

First participant enrolled

November 10, 2024

Completed
2.1 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2026

Expected
4 months until next milestone

Study Completion

Last participant's last visit for all outcomes

April 1, 2027

Last Updated

April 20, 2026

Status Verified

April 1, 2026

Enrollment Period

2.1 years

First QC Date

March 5, 2023

Last Update Submit

April 15, 2026

Conditions

Outcome Measures

Primary Outcomes (1)

  • Target concentration at first steady-state concentration

    The proportion of young infants achieving target trough serum vancomycin concentrations (10 to 20 mg/L) at first steady-state level when model-based dosing is used followed by early therapeutic drug monitoring (and dose adjustment) after the first dose

    From first vancomycin dose (immediately after consent) to steady state level taken at 24-48 hours post-first-dose

Secondary Outcomes (2)

  • Sub- and supratherapeutic concentrations at first steady-state concentration

    From first vancomycin dose (immediately after consent) to steady state level taken at 24-48 hours post-first-dose

  • Drug-related adverse effects

    From first vancomycin dose (immediately after consent) to completion of vancomycin therapy (as determined by clinical team, an average of 5 days)

Study Arms (1)

Vancomycin first-dose trough dose adjustment calculation

EXPERIMENTAL

Participants will have individualised model-based intermittent vancomycin dosing using the Vanc App dosing calculator (as used in VANC APP Part 1, see clinicaltrials.gov ID: NCT04044703). A first-dose trough concentration will be measured for each participant and the clinician will then enter that concentration into the web application ('First-dose trough dose adjustment calculator'). A dose adjustment will be generated by the calculator if the predicted steady-state level is outside of target range. If the predicted steady-state level is within target range (10-20mg/L) the calculator will recommend continuing with the same dose. The vancomycin concentration is then measured at steady state to determine if the target concentration has been achieved.

Other: First-dose trough dose adjustment calculator - using early TDM (first-dose trough) to determine an early dose adjustment if the predicted steady-state trough is outside of target range (10-20mg/L)

Interventions

CALCULATOR: A 'First-dose trough dose adjustment calculator' was developed based on a population pharmacokinetic model. A participant's post-menstrual age, weight, creatinine, target trough concentration, dose, dosing interval and first-dose trough concentration (taken immediately before the second dose is due) are entered into the calculator. The calculator determines if a dose adjustment is required (based on whether the predicted steady-state trough concentration is \<10mg/L or \>20mg/L) and, if required, recommends a new adjusted dose.

Vancomycin first-dose trough dose adjustment calculation

Eligibility Criteria

Age0 Days - 90 Days
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17)

You may qualify if:

  • Infants aged 0 - 90 days old
  • Suspected infection requiring treatment with vancomycin for 48 hours or more (as determined by the clinical team)

You may not qualify if:

  • Infants with a corrected gestational age of less than 25 weeks
  • Infants weighing less than 500g.
  • Known allergy to any glycopeptide antibiotic
  • Vancomycin administered within the previous 72 hours
  • Infants receiving any form of extracorporeal life support
  • Renal impairment

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (4)

Royal Children's Hospital Melbourne

Melbourne, Victoria, 3052, Australia

RECRUITING

Monash Newborn

Melbourne, Australia

NOT YET RECRUITING

Royal Hospital for Women

Sydney, Australia

NOT YET RECRUITING

The Children's Hospital at Westmead

Sydney, Australia

RECRUITING

MeSH Terms

Conditions

SepsisInfectionsBacteremia

Condition Hierarchy (Ancestors)

Systemic Inflammatory Response SyndromeInflammationPathologic ProcessesPathological Conditions, Signs and SymptomsBacterial InfectionsBacterial Infections and Mycoses

Study Officials

  • Amanda Wilkins, MBBS

    Royal Children's Hospital Melbourne, Murdoch Children's Research Institute

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Amanda Wilkins, MBBS

CONTACT

Amanda Gwee, MBBS

CONTACT

Study Design

Study Type
interventional
Phase
phase 4
Allocation
NA
Masking
NONE
Purpose
TREATMENT
Intervention Model
SINGLE GROUP
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

March 5, 2023

First Posted

March 15, 2023

Study Start

November 10, 2024

Primary Completion (Estimated)

December 1, 2026

Study Completion (Estimated)

April 1, 2027

Last Updated

April 20, 2026

Record last verified: 2026-04

Data Sharing

IPD Sharing
Will not share

Locations