Comparison of CHOKAI vs STONE Score to Predict the Presence of Ureteric Stones in Patients With R… (NCT04759417) | Clinical Trial Compass
CompletedNot Applicable
Comparison of CHOKAI vs STONE Score to Predict the Presence of Ureteric Stones in Patients With Renal Colic: A Multi-center Prospective Observational Study
United Arab Emirates92 participantsStarted 2021-02-01
Plain-language summary
Background: The STONE score has traditionally been used as a clinical prediction tool to predict the presence of ureteric stones in patients presenting with renal colic. More recently, the CHOKAI score was introduced and found to have superior diagnostic accuracy on both internal and external validation.
Objective: Our study aims to externally validate and compare the use of both the CHOKAI and STONE score in a population of UAE patients presenting to the Emergency Department for renal colic.
Methods: Over a period of approximately 6 months, the study will follow Emergency Department Physicians at each institution and retrieve data from their encounters with patients presenting with renal colic. Parameters for both CHOKAI and STONE scores will be logged, extracted and matched against a reference standard of CT scan to compare diagnostic accuracy of both scores to predict the presence of ureteric stones in this population.
Goals: Evaluation of the findings will discern applicability of scores to the UAE population and contribute to reducing unnecessary radiation exposure.
To our knowledge, no studies have compared the use of these scores to diagnose urolithiasis in the United Arab Emirates. Furthermore, this will be the first study to externally validate the CHOKAI score outside of Japan using a controlled, prospective design.
Who can participate
Age range
18 Years
Sex
ALL
See this in plain English?
AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Inclusion Criteria:
* Adult population (≥18 years of age) presenting to the Emergency Department with symptoms determined by the investigating ED Physician to be suspicious of urolithiasis (e.g. flank pain, lower abdominal pain, back pain and/or hematuria)
* Patients suspected to have ureteric stone who underwent CT scan to confirm diagnosis
Exclusion Criteria:
Complicated ureteric colic:
* Abnormal vital signs - body temperature \> 37.7 °C or systolic blood pressure ˂90 mmHg)
* Active malignancy
* Abnormal kidney function (abnormal levels of creatinine/BUN)
* Recent (within past 6 months) trauma or urologic surgery
* Age \<18 years
* Pregnant patient
* Patient with incomplete interview/documentation data (e.g. missing US/CT/ UA)
Questions worth asking your doctor
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
Questions for the trial coordinator
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.