Could a steroid or asthma drug ease kidney stone pain?
NCT ID NCT06980727
First seen Jun 25, 2026 · Last updated Jul 16, 2026 · Updated 3 times
Summary
This study tests whether adding either dexamethasone (a steroid) or terbutaline (an asthma drug) to standard paracetamol provides better pain relief for people with kidney stones in the emergency room. About 300 adults with severe pain will be randomly assigned to one of the two drug combinations or a placebo. The main goal is to see if pain drops by at least half within a few hours.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- dexamethasone and terbutaline
- What this could lead to
- If it works, this could point toward a better, faster way to manage kidney stone pain in the emergency room.
- What could go wrong
- This is a single-center trial with 300 participants, so results may not apply to everyone. The drugs also have side effects like heart issues or infections.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Phase 3
Large-scale testing in a bigger group. Usually the last step before a treatment can be approved.
- Participants
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About 500 people
The number the study aims to enrol. It can still change while the study runs.
- Expected to start
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Aug 2026
An estimate. Start dates often move.
- Expected to finish
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Mar 2028
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 to 65 years
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion criteria: * Adults aged 18-65 years * Clinical diagnosis of acute renal colic (defined as sudden sharp colicky flank pain with or without radiation to the genitalia or groin, and with or without urinary symptoms) * Pain score of 5 or more measured using the 10-cm NRS scale Exclusion Criteria: * History of cardiovascular, hepatic, renal, or metabolic diseases * Evidence of sepsis or clinical suspicion of urinary tract infection * Hemodynamically unstable (systolic blood pressure \< 90 mmHg) * Uncontrolled diabetes * Pregnancy or breastfeeding * Inability to understand verbal and/or written information * Received any analgesics within 6 hours prior to presentation * Serum potassium \< 3.7 mmol/L * Concomitant use of: Any beta-blockers (including beta-blocker-containing eye drops) Prolonged-release long-acting β-agonists Short-acting β2-agonists within 6 hours prior to presentation * Contraindication to terbutaline use * Known allergy to paracetamol or terbutaline * Abdominal tenderness suggestive of peritoneal inflammation * Clinical suspicion of conditions other than urolithiasis, including: * Abdominal aortic aneurysm * Aortic dissection * History of drug dependence or chronic alcohol consumption
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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University Hospital Fattouma Bourguiba Monastir
Monastir, Monastir Governorate, 5000, Tunisia
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Other studies related to the condition(s) this trial covers.
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