ClinicalTrials.gg
WithdrawnNCT04766944Updated Dec 13, 2024

Incidence and Associated Risk Factors of ARC in the Trauma Critically Ill Older Than 50 Years Old

An observational study in Augmented Renal Clearance, Critical Illness and Polytrauma, sponsored by McGill University Health Centre/Research Institute of the McGill University Health Centre. Withdrawn at 1 site in Canada. Open to participants aged 50 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2024-12-13.

Primary conditionMultiple TraumaRegistry: Critical IllnessReclassifiedWhy we changed it
Registry
Critical Illness — the first condition term the registry derived for this study.
ClinicalTrials.gg
Multiple Trauma
Why
  1. Critical Illness is a broad heading, used only when no more specific condition is named.
  2. The study's listed conditions name Multiple Trauma.
Confidence
High: the new condition is named in the study's own listed conditions. Of 351 hand-checked studies reclassified this way, 68% were exactly right and 84% in the right disease family; the registry's first term was right for 5% (measured 2026-10-21). How we classify →
Wrong?
Tell us the study's main condition →

Sponsored by McGill University Health Centre/Research Institute of the McGill University Health Centre · Observational

Why this study was withdrawn
This study was planned and approved just before the 2020 pandemic - once the pandemic resolved, significant changes occurred in the ICU that prevented doing the study - hence it was withdrawn with no patient ever enrolled
Study type
Observational
Model
Cohort
Time perspective
Prospective
Enrollment
0
Ages
50 Years and older
Sex
All
01

Study summary

This single-center prospective cohort study conducted at the adult trauma ICU of the Montreal General Hospital (MGH) affiliated with the McGill University Health Centre (MUHC) aims to determine the incidence and associated risk factors of augmented renal clearance (ARC) in critically ill trauma patients of 50 years old and above.

Read the detailed description

Patients aged 50 years or older admitted to the ICU for traumatic brain injury (TBI) and/or polytrauma between January 2021 and October 2021 will be screened for study enrollment according to inclusion and exclusion criteria.

Research hypothesis :

  • Critically ill trauma patients aged 50 years or older admitted to the ICU present an augmented renal clearance;
  • A set of factors could predict, to a certain extent, the risk of developing ARC in critically ill trauma patients aged 50 years or older admitted to the ICU.

ARC will be assessed for every patient based on daily 8-hour urine collections started within the first 24 hours of ICU admission and daily serum creatinine concentrations. The first seven days will consist of daily urinary collection while only biweekly samples (days 10 and 14) will be collected for the second week. Since ARC is a time-sensitive event, the use of a deferred consent will allow for urine collection to begin as soon as possible after admission. All other data required for the study (demographic and other clinically relevant data) will be collected retrospectively once consent from surrogate or patient has been obtained. Data will be collected from study enrollment up until one of the following events : 1) Day 14 of ICU stay ; 2) ICU discharge; 3) AKI onset; 4) institution of RRT; 5) Removal of urinary catheter; 6) Withdrawal of informed consent; 7) Death; whichever occurs first.

Data regarding demographic variables including age, gender, anthropometric measurements, admission diagnosis, nature of injuries, comorbidities, and length of stay (LOS) will be obtained through the patient's medical records as well as the clinical information system. Data concerning ventilation and 24-hour fluid balance will be obtained through nursing records. Information regarding drug therapy (e.g., vasopressor and antibiotic use) will be obtained through the MUHC software. The Injury Severity Score (ISS) score will be compiled from the local Trauma Registry, while the Sequential Organ Failure Assessment (SOFA) score will be calculated directly.

02

Conditions studied

  • Augmented Renal Clearance
  • Critical Illness
  • Polytrauma
  • Traumatic Brain Injury

Keywords

  • Augmented renal clearance
  • Critical illness
  • Critical care
  • Intensive care unit
  • Trauma
  • Polytrauma
  • Traumatic brain injury
  • Elderly
  • Middle-aged
03

In context

Multiple Trauma Reclassified

139 studies on the registry are indexed under Multiple Trauma; 32 are open to participants now.

Browse Multiple Trauma studies →

Lead sponsor

McGill University Health Centre/Research Institute of the McGill University Health Centre is the lead sponsor of 421 studies on the registry; 105 are open to participants now.

Compared within Multiple Trauma, this study's primary condition as ClinicalTrials.gg classifies it; the registry's first condition term is Critical Illness. The counts are of registry records indexed under each term, refreshed daily. How we classify →

04

Who can participate

Ages eligible
50 Years and older
Sexes eligible
All
Accepts healthy volunteers
Yes
Sampling method
Non-probability sample

Study population

Patients aged 50 years old or older admitted to the ICU for traumatic brain injury (TBI) and/or polytrauma between January 2021 and October 2021

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Admission to the ICU for isolated traumatic brain injury (TBI), polytrauma without TBI or combined polytrauma and TBI
  • Expected ICU length of stay of more than 24 hours
  • Age of ≥ 50 years old at the time of admission
  • Serum creatinine ≤ 120 μmol/L at the time of admission
  • Presence of an indwelling urinary catheter
  • Consent is obtained from the patient or its surrogate decision-maker within 7 days of ICU admission

Exclusion criteria

Exclusion Criteria:

  • History of renal replacement therapy (RRT) (intermittent dialysis or peritoneal dialysis), nephrectomy or renal transplant
  • Patient developing acute kidney injury (AKI)
  • ICU physician considered patient unsuitable for enrollment due to poor prognosis
  • Burn-related trauma
  • Patient is admitted > 48 hours post-traumatic event
05

Study design

Observational model
Cohort
Time perspective
Prospective
Enrollment
0 participants (actual)
Patient registry
No
Biospecimen retention
Samples without dna

Groups and cohorts

  • Critically ill trauma patients of 50 years old and above

    Patients of 50 years old and above admitted to the Montreal General Hospital intensive care unit for trauma

    Other: No intervention

Interventions

  • OtherNo intervention

    No intervention

06

What researchers measure

Primary outcomes

  1. To determine the incidence of augmented renal clearance in critically ill trauma patients aged 50 years and older

    The incidence of augmented renal clearance is dichotomic: presence or absence of augmented renal clearance defined as a creatinine clearance of ≥ 130 mL/min/m² measured by a daily 8 hour urine collection

    Time frame: Once a day, up to 14 days

Secondary outcomes

  1. To determine demographic and clinical risk factors for ARC in critically ill trauma patients aged 50 years and older

    Predictive variables of ARC to be included in the model include: age strata (50-59 years old, 60-69 years old, 70 years old and above; biological gender; type of trauma (TBI, polytrauma without TBI, combined polytrauma and TBI) and severity of trauma (Injury Severity Score (ISS score), Sequential Organ Failure Assessment (SOFA) score, severity of TBI (GSC score at admission). Other variables to be included in the model will depend on the number of cases observed with a minimum of 10 cases per variable.

    Time frame: Up to 14 days

07

Study locations

1 site
  • McGill University Health Centre
    Montréal, Quebec H4A3J1, Canada
08

References and documents

Individual participant data

Plan to share: Undecided — Not at the present time

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Start is estimated for Mar 2024; primary completion for Dec 2024, 9 months later.

How these figures are worked out, and which studies are left out of them.

Registered
Feb 14, 2021
First posted
Feb 23, 2021
StartEst.
Mar 2024
Primary completionEst.
Dec 2024
CompletionEst.
Dec 2025
Last update
Dec 13, 2024
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Dec 13, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT04766944
Responsible party
Marc M. Perreault (Full clinical professor, McGill University Health Centre/Research Institute of the McGill University Health Centre) — Principal investigator
First posted
Feb 23, 2021
Start date
Mar 2024 (estimated)
Primary completion
Dec 2024 (estimated)
Completion
Dec 2025 (estimated)
Last update
Dec 13, 2024

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is withdrawn, as verified in Dec 2024. You cannot join it, but the record below documents what was studied.

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