Renal Disease, Cystinosis
Conditions
Keywords
renal function, before and after N acetyl cysteine, Cystinosis patients
Brief summary
This study intends to verify the interference of N acetyl cysteine in the progression of chronic kidney disease in patients with Nephropathic Cystinosis.
Detailed description
Patients with Nephropathic Cystinosis have an increased oxidative stress and go to end-stage renal disease, even when all steps of the treatment are done. Therefore, this study is conducted to verify the interference of the stress oxidative in the progression of the renal disease with the use of an oxidant drug, N acetyl cysteine (NAC). The investigators selected patients with good compliance of the treatment. In these patients the investigators evaluate the serum creatinine, creatinine clearance estimated by Schwartz Formula, cystatin C and a marker of oxidative stress, TBARS ( thiobarbituric acid substances). The variables are analyzed 6 months before the introduction of NAC and the three months after NAC.
Interventions
N acetyl cysteine to cystinosis patients with CKD stages 1 to 4
Sponsors
Study design
Eligibility
Inclusion criteria
* cystinosis patients age under 18 years with good compliance to the treatment with Chronic Kidney Disease 1 to 4 according to KDOQI
Exclusion criteria
* patients with CKD stage 5
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| creatinine clearance | change in creatinine clearance evaluated 6 months before , at baseline and after 3 months with NAC | creatinine clearance will be evaluate 6 months beforw and at baseline and after 3 months with NAC |
| cystatin c | change in cystatin C from baseline and after 3 months with NAC | Cystinosis patients will be evaluated 6 months before and at baseline and after 3 months after the use of NAC |