Cyclosporine Adverse Outcomes in Steroid Dependent and Frequent Relapsing Nephrotic Syndrome in Children;Single Center Study

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Total Enrollment

30 participants

Study Classification

OBSERVATIONAL

Study Start Date

2022-10-20

Study Completion Date

2023-04-20

Brief Summary

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Nephrotic syndrome (NS) is the most common glomerular disorder in children with significant morbidity and mortality and affects about 1-3 per 100,000 children aged below 16 years. Nephrotic syndrome is characterized by the presence of edema, proteinuria: uPCR (urine protein creatinine ratio) ≥200 mg/mmol (≥2 g/g) or 3+ protein on urine dipstick and hypoalbuminemia less than 3 g/dl).Nephrotic syndrome is classified according to response to steroids into steroid sensitive and steroid resistant. Approximately 90% of all cases are steroid-sensitive with an initial episode successfully treated with a standardized treatment protocol of steroids. However, about 80% of these patients experience further relapses. Of these, 50% are steroid dependent and frequent relapsers. While any relapse can be treated with steroids, children may be vulnerable to the side effects of a high cumulative dose of steroids such as obesity, growth impairment, behavioral alterations and attention problems, as well as reduced quality of life and family stress. To minimize steroid toxicity in patients with steroid-dependent and frequently relapsing nephrotic syndrome, a number of immunosuppressive agents are recommended as maintenance therapeutic agents. Among those are cyclosporine A, tacrolimus, mycophenolate mofetil (MMF), cyclophosphamide, levamisole and rituximab. Cyclosporin-A (CsA) is a calcineurin inhibitor that is well recognized as having a steroid sparing effect in steroid-dependent and frequently relapsing NS and has a role in the maintenance of complete remission in more than 75% of patients with SDNS during discontinuation of steroids. However, early withdrawl of cysclosporine may lead to relapses so the patient may be dependent on cyclosporine for years. The long-term use of CsA has been identified to be a risk factor of unsatisfactory effects such as nephrotoxicity, hypertension and cosmetic symptoms such as (gum hypertrophy and hirsutism). Therefore, close observation of the side effects of cyclosporine is very important as well as regular follow up of blood pressure and kidney function tests. Also, estimation of trough blood levels of CsA is required in patients with suspected non compliance, unsatisfactory response or nephrotoxicity (increase in serum creatinine by 30% or more from the baseline) aiming for the lowest levels that maintain remission and avoid toxicity (target 12-hr trough level of 60-150 ng/ml). Kidney biopsy could be included as a component of the long-term CsA protocol to test for CsA-associated nephropathy if given more than 2-3 years. CsA nephrotoxicity is primarily caused by chronic ischemic insult to the kidney, resulting in arteriolar hyalination and tubulointerstitial changes, including striped interstitial fibrosis, tubular vacuolization, and atrophy.The aim of this study is to determine the adverse outcomes of Cyclosporine in children with steroid dependent and frequent relapsing nephrotic syndrome in Sohag University Hospital.

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Detailed Description

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Conditions

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Steroid Dependent and Frequent Relapsing Nephrotic Syndrome

Study Design

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Observational Model Type

CASE_ONLY

Study Time Perspective

CROSS_SECTIONAL

Interventions

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observation of the adverse outcomes of Cyclosporine in steroid dependent and frequent relapsing nephrotic syndrome in children

The interventions that will be done include collection of the following data : age at disease onset, disease duration, type of steroid response, age at the start of CsA treatment, dose and duration of CsA treatment, mean values of the maintenance doses of CsA and their trough blood levels and observation of the side effects. serum creatinine at regular intervals before and after CsA treatment and renal biopsy for those who are on CsA for more than 2-3 years would be done.

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* The study will include children and adolescents diagnosed as steroid dependent and frequent relapsing nephrotic syndrome with disease onset from one to fifteen years and treated with cyclosporine A in the Paediatric nephrology clinic, Sohag University Hospital

Minimum Eligible Age

1 Year

Maximum Eligible Age

15 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No