Tiny study probes gene link to kidney stones
NCT ID NCT04430426
First seen Jun 27, 2026 · Last updated Sep 01, 2026 · Updated 4 times
Summary
This study looks at how a specific gene change (AGXT) affects oxalate production in people who have had calcium oxalate kidney stones. Four participants will eat a low-oxalate diet for five days and then receive an intravenous dose of glycolate. Researchers will measure oxalate levels in blood and urine to understand how the gene change influences stone risk.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- glycolate administered intravenously
- What this could lead to
- If successful, this could help identify people at higher risk for kidney stones and point toward new prevention strategies.
- What could go wrong
- This is a very small, early study with only 4 participants. It is designed to gather knowledge, not to test a treatment, so direct benefits are unlikely.
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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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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About 4 people
The number the study aims to enrol. It can still change while the study runs.
- Expected to start
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Jul 2027
An estimate. Start dates often move.
- Expected to finish
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Aug 2032
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 years and older
- 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: * at least 18 years of age * history of calcium oxalate stones * heterozygous mutation of the AGXT gene, as evidenced by results from the Invitae Nephrolithiasis Panel * willingness to comply with a controlled diet for five days Exclusion Criteria: * pregnant individuals * individuals who are currently breast feeding
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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
The full official record for this study. This one lists no contact details, but it is the first place any would appear.
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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 of Alabama at Birmingham
Birmingham, Alabama, 35233, United States
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