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Not yet recruitingNCT07549334Updated Jul 13, 2026

Evaluating the Use of Prehospital Lung Ultrasound in EMS: A Multicenter Pilot Study

An interventional study of Pulmonary ultrasound in Congestive Heart Failure(CHF) and Pulmonary Edema, sponsored by Rutgers, The State University of New Jersey. Not yet recruiting at 2 sites in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-07-13.

Sponsored by Rutgers, The State University of New Jersey · Not applicable, Interventional, and Diagnostic

Phase
Not applicable
Study type
Interventional
Enrollment
1,000
Allocation
Non-randomized
Ages
18 Years and older
Sex
All
01

Where this study stands

Counted across the records on this site · 2026-11-12

Among 2,156 studies in Heart Failure with a site in United States — 348 open to participants now, 437 under way, 27 of them phase 3. Heart Failure · United States.

Planned enrollment
146th of 1,600
1,000 · median 65
Started
2026
with 94 others
No phase
886 of 2,156
161 open now
Primary completion
2028-12
later than 343 of 436 live
Registered
2,107th of 2,156
by date

Among the 2,156 studies in Heart Failure with a site in United States, this one is the 146th largest by planned enrollment of the 1,600 interventional ones, is one of 95 that started in 2026, is one of 886 with no phase, reaches primary completion later than 343 of the 436 other live ones, and was the 2,107th registered.

By phase

2,156 studies; the count open now beside each. This study's row is marked.

No phasethis study886 · 161 open
Observational552 · 103 open
Phase 2226 · 24 open
Phase 3147 · 21 open
Phase 4139 · 13 open
Phase 1118 · 18 open
Phase 1/256 · 5 open
Phase 2/330 · 3 open
Other kind2 · 0 open

By the year they started

First in 1983; this study’s year is marked. 95 started in 2026.

Size and results

Median enrollment 65 across the 1,600 interventional studies, 150 across the 551 observational. Of the 1,509 that completed or were terminated, 629 (42%) have results posted.

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Watch this landscapeDownload CSVWith an account: a weekly mail of what changed among 2,156 studies in Heart Failure with a site in United States, or all of them as a file.
02

Study summary

The goal of this prospective nonrandomized study is to determine if prehospital lung ultrasound findings result in a change in patient management. This study will look at how lung ultrasound exam improves diagnosis of respiratory distress in patients being treated by Emergency Medical Services, such as patients with heart failure. Additional questions include:

  • How well can paramedics obtain and interpret ultrasound images?
  • How does ultrasound use change treatment received by patients?
  • How does ultrasound use impact patient outcomes? Participants will receive a lung ultrasound exam, but otherwise receive standard evaluation and care. Patients who receive ultrasound will be compared to those who did not receive ultrasound for logistical reasons and patients from before the use of ultrasound. Ultrasound will not be withheld from any patient for the purposes of the study.
03

Conditions studied

  • Congestive Heart Failure(CHF)
  • Pulmonary Edema

Keywords

  • Ultrasound
  • Emergency Medical Services
  • Pulmonary Ultrasound
  • Pulmonary Edema
  • Congestive Heart Failure
  • Paramedic
04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

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

  • Patient treated by Emergency Medical Services
  • Complaint of dyspnea

At least one of the following:

  • Oxygen saturation \<94% on room air
  • Abnormal lung sounds
  • Increased work of breathing
  • Pedal edema
  • Orthopnea

Exclusion criteria

Exclusion Criteria:

  • Pediatric patients (\<18)
  • Traumatic etiology
  • Cardiac arrest at any point prehospitally
  • No ultrasound-trained paramedic involved in patient's care
05

Study design

Phase
Not applicable
Primary purpose
Diagnostic
Allocation
Non-randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
1,000 participants (estimated)

Study arms

  • Active comparator
    Patients who receive ultrasound

    Diagnostic Test: Pulmonary ultrasound

  • No intervention
    Patients before ultrasound implementation

    Patients who meet inclusion criteria but were treated before ultrasound was available

  • No intervention
    Patients who do not receive ultrasound

    Patients who do not receive ultrasound after paramedic training due to factors such as lack of probe availability, clinician decision, refusal, etc. Ultrasound will not be deliberately withheld from any patient.

Interventions

  • Diagnostic testPulmonary ultrasound

    Ultrasound of up to six lung zones (1, 2, and 4) will be obtained. Paramedics will assess for the presence of B lines.

06

What researchers measure

Primary outcomes

  1. Frequency with which prehospital lung ultrasound findings result in a change in patient management by EMS

    Frequency of management changes will be compared from before prehospital ultrasound was used to after prehospital ultrasound has been implemented.

    Time frame: From time of patient encounter to patient handoff at the hospital. (anticipated average of one hour)

Secondary outcomes

  1. Survival to discharge

    Time frame: At time of hospital discharge (anticipated average one week)

  2. Percent of prehospital diagnoses agreeing with hospital diagnosis

    Diagnostic accuracy

    Time frame: At time of hospital discharge (anticipated average of one week)

  3. Whether or not patient is intubated by EMS or during hospital admission, recorded as yes or no

    Time frame: EMS patient encounter to hospital discharge (anticipated average one week)

  4. Days on ventilator or non-invasive ventilation

    Time frame: Hospital arrival to hospital discharge (anticipated average one week)

  5. Length of stay

    Time frame: Hospital arrival to hospital discharge (anticipated average one week)

  6. Length of ICU stay

    Time frame: Hospital admission to hospital discharge (anticipated average one week)

  7. Paramedic ultrasound interpretation accuracy

    Comparison between paramedic interpretation (of presence of lung sliding and number of B lines) with physician interpretation

    Time frame: Enrollment

  8. Quality of ultrasound obtained by paramedic

    Rating of ultrasound using a five-point scale (1 being no recognizable structures, 5 being criteria met for diagnosis, all structures imaged with excellent image quality and diagnosis completely supported) by physician

    Time frame: Enrollment

07

Study locations

2 sites
08

References and documents

Individual participant data

Plan to share: No — Data that can be linked to individual patients will not be shared due to patient confidentiality.

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Start is estimated for Aug 2026; primary completion for Dec 2028, 28 months later.

Of 1,118 non-industry interventional studies with no phase under Heart Failure, half reached primary completion within 29 months of starting (the median), counting those still running; a quarter within 16 and three quarters within 50. This study's planned 28 months is close to that.

Counting every sponsor, half of 1,354 studies reached it within 31 months; a quarter within 16 and three quarters within 52.

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

Registered
Mar 17, 2026
First posted
Apr 24, 2026
StartEst.
Aug 2026
Primary completionEst.
Dec 2028
CompletionEst.
Dec 2028
Last update
Jul 13, 2026
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 Jul 13, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT07549334
Collaborators
Christiana Care Health Services, Cooper University Health Care, Hackensack Meridian Health
Responsible party
Tung-Lin Jesse Yuan, DO (Assistant Professor of Emergency Medicine, Rutgers, The State University of New Jersey) — Principal investigator
First posted
Apr 24, 2026
Start date
Aug 2026 (estimated)
Primary completion
Dec 2028 (estimated)
Completion
Dec 2028 (estimated)
Last update
Jul 13, 2026

Study contacts

Elizabeth Blizzard
Contact
eab318@njms.rutgers.edu
609-955-4412
Andrew Grandin
Contact
andrew@grandideas.org
6099006518
Danielle Levine, MD
principal investigator · Christiana Care Health Services
Stephen Carroll, DO, MEd
principal investigator · Christiana Care Health Services
Tung-Lin Yuan, DO
principal investigator · Rutgers University

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 not yet recruiting, as verified in Jul 2026. You cannot join it, but the record below documents what was studied.

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