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Effect of Sodium Thiosulfate on Urine Chemistries of Hypercalciuric Stone Formers

Kidney Stones Clinical Trial

Official title:
Pilot Study : Effect of Sodium Thiosulfate on Urine Chemistries of Hypercalciuric Stone Formers

Clinical Trial Summary

Sodium thiosulfate may be useful to prevent recurrence of calcium-containing kidney stones. It will be studied in people with high amounts of urine calcium.

Clinical Trial Description

The investigators study is designed as a pilot study to study the effect of STS on urine chemistries in stone formers and normal controls. It is expected to continue for a duration of 1 year and will have two groups: 20 normal controls, who are healthy subjects without known kidney disease or nephrolithiasis, and 20 subjects with documented recurrent nephrolithiasis and hypercalciuria. Patients will be recruited from Dr Goldfgarb's stone clinic at VA Hospital and controls would be voluntary participants from NYU School of Medicine. Subjects who are pregnant or nursing, taking alcohol or drugs, have known CKD or are unable to give consent would be excluded from the study. Any diuretics or citrate containing drugs would be held for a period of 2 weeks during the study period to achieve washout of the effects of those drugs on urine chemistries. Oral STS 10mmol (10ml of 25% STS) BID will be administered to both groups for 7 days; four 24 hour urine collections, 2 prior and 2 at the end of the study, would be done with all participants. A diet diary would be maintained by subjects concomitantly during the study periods. The investigators then plan to compare the two groups in terms of urine chemistries to detect any changes in these parameters with thiosulfate administration. Based on prior animal experiments and human studies with STS the investigators anticipate that it would have a favorable effect on the supersaturation of Ca oxalate/phosphate and therefore its long term use would be helpful in preventing nephrolithiasis. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT01088555
Study type Interventional
Source VA New York Harbor Healthcare System
Contact
Status Completed
Phase N/A
Start date November 2009
Completion date December 2011
View Details
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