Study oxalate and citrate in people with and without kidney stones
Part of Kidney & urinary, Women’s health & pregnancy clinical trials.
This study compares urine levels of oxalate and citrate in adults who have had calcium kidney stones and adults who have never had stones. It may help researchers understand how these urine chemicals relate to stone risk.
Summary written for real people, not researchers, by Clin2.
Who can take part
- You are between 18 and 70 years old.
- Either you have had at least one calcium-based kidney stone, or you have never had a kidney stone.
- If you have never had stones, your 24-hour urine oxalate must be within the lab’s normal range (under 50 mg/day).
- You must be able to stop diuretic medicines or alkali supplements during the study (for the entire study period).
- You should not have a history of uric acid, cystine, or struvite kidney stones.
- Your urine citrate level should not be extremely low (under 100 mg/day) or extremely high (over 1500 mg/day).
Quick eligibility check
Answer a few plain-language questions, based on this study's own requirements, to get a preliminary sense of fit.
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