Study Status: Active, not recruiting
Recruit Status: Active, not recruiting
Study Type: Interventional
Official Title: Effect of Increasing Doses of Cystine Binding Thiol Drugs on Cystine Capacity in Patients With Cystinuria
Brief Summary: The purpose of this study is to evaluate the effect of escalating doses of cystine biding thiol drugs, including tiopronin and d-penicillamine, on the urinary cystine capacity, which is a measure of the amount of cystine in the urine, in patients with cystinuria. The overall goal will be to help guide therapy and ultimately minimize unnecessary side effects caused by larger doses.