期刊
PEDIATRIC NEPHROLOGY
卷 16, 期 3, 页码 271-282出版社
SPRINGER
DOI: 10.1007/s004670000523
关键词
nephrotic syndrome; cyclophosphamide; chlorambucil; side effects; toxicity; relapse-free survival
For over 30 years cyclophosphamide (CYC) and chlorambucil (CHL) have been used to treat children with relapsing steroid-sensitive nephrotic syndrome (SSNS). A meta-analysis on treatment protocols, efficacy, and side effects of CYC and CHL was performed from the literature. Thirty-eight studies comprising 1,504 children and 1,573 courses of cytotoxic drug therapy were systematically evaluated. Relapse-free survival rates increased with the cumulative dosage of CHL and CYC and were higher in children with frequently relapsing than steroid-dependent NS. The fatality rate of the treatment was approximately 1%. Leukopenia occurred in one-third of patients treated with either drug. Severe bacterial infections developed in 1.5% of the patients under CYC and in 6.8% under CHL. Seizures were observed in 3.6% of children treated with CHL. Malignancies were observed in 14 children after high doses of either drug. Females rarely developed permanent gonadal damage. However, no safe threshold for a cumulative amount of CYC was found in males, but there was a marked increase in the risk of oligo- or azoospermia with higher cumulative doses. From this meta-analysis we recommend CYC 2-3 mg/kg body weight for 8-12 weeks as the standard scheme. CHL has higher rates of severe side effects and should be considered a second-line drug.
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