Natural supplement aims to stop painful kidney stones
NCT ID NCT02910531
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tests whether taking a daily alpha lipoic acid supplement can reduce the return of cystine kidney stones in people with cystinuria. Half of the 50 participants will take 1200 mg of the supplement daily for three years, and the other half will take a placebo. The main goal is to see if the supplement lowers stone recurrence and urinary cystine levels.
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Study facts
What this study's own registry entry says, in plain language.
- Phase
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Phase 2
Tests whether the treatment actually works, and watches for side effects, in a larger group.
- Participants
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50 people
The number who actually took part.
- Started
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Jun 2017
- Finished
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Dec 2024
- 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: * Documented cystinuria on prior 24-hour urine collection and/or stone analysis; history of previous cystine kidney stones. * Being able and willing to provide consent. Exclusion Criteria: * Poorly controlled diabetes mellitus (hemoglobin A1C \> 8.0% for more than 1 year). * Current alpha-lipoic acid administration at the time of screening or within the last year prior to screening. * Vulnerable populations including incarceration status. * Unable to give informed consent. * Non-English primary language. * Pregnancy, lactation, or child-bearing age without birth control devices. * Anticipation of pregnancy during the study period. * Serious illness likely to cause death within the next 5 years.
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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.
Contacts and locations
Locations
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University of California, San Francisco
San Francisco, California, 94143, United States
More trials for these conditions
Other studies related to the condition(s) this trial covers.
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- Could a biobank unlock secrets of rare kidney stone diseases?
- Global registry aims to crack the code of rare kidney stone diseases
- Cystinuria drug trial pulled before it even started
- Could a diabetes drug stop painful kidney stones?