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NCT01451931 · ClinicalTrials.gov registry record · Phase 4
Study of Tomography of Nephrolithiasis Evaluation
A Phase 4 study, sponsored by University of California, San Francisco.
- Completed
- Registry status
- Phase 4
- Development phase
- 2,776
- Enrollment target
NCT01451931: Completed Phase 4 study, sponsored by University of California, San Francisco.
NCT01451931 is a Phase 4 study that has completed, run by University of California, San Francisco. The registered enrollment target is 2,776 participants, above the 518-participant average among 9,235 other Phase 4 trials with a reported enrollment target (436% higher). According to ClinicalTrials.gov, the official US trial registry.
The verdict
NCT01451931, a Phase 4 study, has completed, sponsored by University of California, San Francisco.
- COMPLETED
- Registry status
- Phase 4
- Development phase
- 2,776 participants
- Enrollment target
Study Summary
This is a multi-center, randomized controlled trial of ultrasonography (ultrasound) compared to computed tomography (CT) for the initial emergency room evaluation of patients with suspected renal colic. The investigators will compare several measures of effectiveness including morbidity related to the patient's underlying disease, or complications related to delayed diagnosis, patient status regarding pain/missed days of work, and utilization of health care resources based on one of three study arms: ultrasound in the Emergency Department, ultrasound in Radiology or CT.
Primary Outcome
Missed or delayed diagnosis of appendicitis, pneumonia with sepsis, diverticulitis, abdominal aortic aneurysm with rupture, mesenteric ischemia with bowel perforation, renal infarction, stone with renal abscess, urosepsis/pyelonephritis with bacteremia, ovarian torsion with necrosis related to randomization and due to imaging modality.
Interventions
- OTHER Point-of-care Ultrasound
- RADIATION Radiology Ultrasound
- OTHER Radiology CT
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 2,776 participants |
| Start Date | 2011-09 |
| Est. Completion | 2013-09 |
| Phase | Phase 4 |
What the finished NCT01451931 record still lists
NCT01451931 is an interventional study that assigns participants to a tested intervention. Its 2,776 participants enrollment target places it among the larger protocols in the corpus, above the 518-participant average among 9,235 other Phase 4 trials with a reported enrollment target (436% higher).
The record links to 0 conditions, and to 3 interventions - of which Point-of-care Ultrasound is the first listed.
NCT01451931 does not publish any study locations in the registry export this page uses.
Frequently Asked Questions
What is clinical trial NCT01451931 about?
NCT01451931 is a clinical study titled "Study of Tomography of Nephrolithiasis Evaluation". This is a multi-center, randomized controlled trial of ultrasonography (ultrasound) compared to computed tomography (CT) for the initial emergency room evaluation of patients with suspected renal colic. The investigators will compare several measures of effectiveness including morbidity related to t...
What is the current status of trial NCT01451931?
This trial is currently completed. It is a Phase 4 study. The enrollment target is 2,776 participants. The study started on 2011-09. Estimated completion is 2013-09.
What interventions are being tested in trial NCT01451931?
The interventions under investigation include: Point-of-care Ultrasound (OTHER), Radiology Ultrasound (RADIATION), Radiology CT (OTHER).
Who is sponsoring clinical trial NCT01451931?
This trial is sponsored by University of California, San Francisco, which has 1,713 total clinical trials registered on ClinicalTrials.gov.
Learn More About Clinical Trials
How this trial's enrollment target compares
Where NCT01451931's enrollment target sits among peer trials
2,776 25th of 2000 higher than 1,976 of 2,000 other Phase 4 trials
participants (enrollment target), bucketed by value
Each bar is a band; taller bars hold more other Phase 4 trials. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source ClinicalTrials.gov registry export · 2026-08-08
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