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NCT Number: NCT07718464

FST Analysis Supporting Timely Therapy and Risk Assessment Via Clinical Decision Support for Kids

The goal of this study is to learn whether adding a clinical decision support tool to the electronic medical record helps clinicians use the furosemide stress test in critically ill children at high risk for severe acute kidney injury (AKI). The main question it aims to answer is: Does implementing the decision support tool reduce fluid overload and help predict which children will receive dialysis?

Researchers will identify children admitted to the pediatric intensive care unit who are at high risk for AKI using risk stratification and biomarker testing, then compare outcomes in the two years after the tool is introduced with the two years before.

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Key information

Sex eligibility

All sexes

Study type

Observational

Primary location

Cincinnati Children's Hospital Medical Center

Cincinnati, Ohio, 45229, United States

Location status: Recruiting

Location contact

Imogen Clover-Brown, MD

SUB_INVESTIGATOR

Natalja L Stanski, MD, MS

CONTACT

[email protected]

513-636-4334

Natalja L Stanski, MD, MS

PRINCIPAL_INVESTIGATOR

About this study

Acute kidney injury (AKI) is common in critically ill children, and continuous renal replacement therapy (CRRT) is a mainstay of treatment for severe AKI. Delayed initiation of CRRT is associated with worse outcomes, but because CRRT carries risks, tools are needed to identify which patients will truly benefit from early initiation. Through previous work, the investigators have developed, tested, and integrated an AKI risk-stratification tool (the Renal Angina Index, RAI) and a urine biomarker (neutrophil gelatinase-associated lipocalin, NGAL) to identify patients at risk for developing severe AKI. The furosemide stress test (FST), previously validated in adults, measures urine output after a standardized dose of furosemide and may help predict which patients will receive dialysis versus those who can be managed medically. However, despite existing clinical decision support, fewer than half of eligible patients currently undergo an FST, suggesting that implementation varies by clinician preference rather than patient factors.

The investigators will follow a cohort of patients admitted to the PICU who are identified as being at high risk for developing severe AKI through RAI and NGAL screening. Using a hybrid type 1 effectiveness-implementation design, the aim is to develop and implement a clinical decision support intervention that standardizes FST use in this population, evaluate whether this intervention is acceptable and feasible to clinicians, and determine its impact on patient outcomes. Outcomes in the two years after implementation will be compared with the two years before, with the primary outcome of reducing fluid overload. The investigators will also assess whether urine flow rate after the FST predicts receipt of CRRT and confirm that performing the FST does not increase the need for blood-pressure support.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Admitted to the pediatric intensive care unit (PICU)
  • Renal Angina Index (RAI) greater than or equal to 8 (RAI+)
  • Urine NGAL greater than or equal to 150 ng/mL (NGAL+)

Exclusion criteria

  • Receipt of renal replacement therapy prior to PICU admission

Treatment and study plan

Furosemide Stress Test Clinical Decision Support Tool

Other

The CDS strategy will be developed with key stakeholders in the Cincinnati Children's PICU, leveraging existing infrastructure and workflows. This CDS intervention will then be implemented as part of routine care in the PICU.

Primary outcomes

  1. Change in Day 7 Fluid Accumulation

    Time frame: 2 years

    Median Day 7 percent fluid accumulation will be compared between eligible patients in the 2 years post-implementation and the 2 years pre-implementation. Percent fluid accumulation will be calculated as cumulative fluid balance (in liters) divided by baseline body weight (in kilograms) multiplied by 100 to obtain a percentage.

Secondary outcomes

  1. Implementation Acceptability, Feasibility, and Fidelity

    Time frame: 2 years

    Acceptability to clinicians, feasibility to implement within PICU workflows, and fidelity of delivery of intervention will be assessed. Acceptability and feasibility will be measured with the Acceptability of Intervention Measure (AIM) and Feasibility of Intervention measure (FIM) tools. Results of each tool will be analyzed to determine the mean and standard deviation of each question and summary scores for the complete tool. Fidelity will be assessed by comparing the proportion of RAI+/NGAL+ patients who receive an FST in the post-implementation period compared to the pre-implementation period. Barriers and facilitators to fidelity of our intervention will be explores using semi-structured interviews (SSIs) and RedCap surveys of clinicians.

  2. Change in ICU Free Days

    Time frame: 2 years

    Median ICU free days will be compared between eligible patients in the 2 years post-implementation and the 2 years pre-implementation. ICU free days will be calculated as 28 days minus the total number of days in the ICU with patients who die before day 28 assigned 0.

  3. Change in Continuous Renal Replacement Therapy Use

    Time frame: 2 years

    Rate of CRRT use, timing of initiation, and duration between eligible patients in the 2 years post-implementation to the 2 years pre-implementation.

  4. Change in Vasoactive Inotropic Score after FST

    Time frame: 2 hours

    For patients who undergo FST, change in Vasoactive Intropic Score (VIS) will be compared from immediately before FST to 2 hours after FST. This will serve as a balancing measure to evaluate safety of intervention.

Sponsors and collaborators

Lead sponsor

Children's Hospital Medical Center, Cincinnati

Other

Registry information

Official study title

Furosemide Stress Test Implementation and Outcomes in Critically Ill Children at High Risk for Acute Kidney Injury: A Hybrid Study

Acronym: FAST TRACK

Important dates

Study start
2026
Primary completion
2028
Study completion
2028
First posted
Jul 22, 2026
Registry last updated
Jul 22, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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