Small kidney stones: most pass naturally, study aims to predict which

NCT ID NCT07176026

ENROLLING_BY_INVITATION Knowledge-focused Sponsor: Region Skane Source: ClinicalTrials.gov ↗

First seen Jun 26, 2026 · Last updated Jun 26, 2026

Summary

This study follows 1,600 people with small kidney stones (4 mm or less) to see how often they pass without help. Participants report symptoms, give blood, and get a follow-up CT scan. The goal is to find out if pain, stone size, or location can predict natural passage within 4 to 8 weeks.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

What this could lead to: If successful, this could help doctors predict which small kidney stones will pass on their own, reducing unnecessary procedures.
What could go wrong: This is an observational study, not a treatment trial. It may not lead to new treatments or change current care.

This is an AI summary of the original study and may miss details. Read our disclaimer.

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Conditions

The condition(s) this trial relates to.

Kidney Calculi nephrolithiasis ureterolithiasis

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

KIDNEY STONE

Contacts and locations

Locations

Department of Urology

Helsingborg, Sweden
Department of Urology, KI Huddinge

Stockholm, Sweden

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