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  • Title: Intravenous pulse cyclophosphamide--a new regime for steroid resistant focal segmental glomerulosclerosis.
    Author: Gulati S, Kher V.
    Journal: Indian Pediatr; 2000 Feb; 37(2):141-8. PubMed ID: 10745408.
    Abstract:
    OBJECTIVE: A prospective study was conducted to evaluate the role of intravenous pulse cyclophosphamide (IVCP) infusions in the management of children with steroid resistant (SR) idiopathic focal segmental glomerulosclerosis (FSGS). METHODS: The study group comprised of 20 consecutive children with idiopathic nephrotic syndrome secondary to FSGS who were SR. All of them were subjected to standard baseline investigations. They were started on monthly infusions of IVCP in a dose of 500-750 mg/m2. Adjunctive prednisolone was given in a dose of 60 mg/m2/day for 4 weeks followed by 40 mg/m2/alternate day for another 4 weeks and tapered off over next 4 weeks. RESULTS: The study group comprised of 15 boys and 5 girls with mean age of onset of disease of 5.5 +/- 3.5 years. Two of these children had chronic renal insufficiency prior to starting therapy. At the end of the study, after a mean duration of disease (since onset of NS) of 77 +/- 55 months, all 20 children had normal renal functions. After a mean follow up post IVCP therapy of 21.2 +/- 13.4 months, 13 of the 20 children (65%) had attained a complete remission. Of these, 10 children were infrequent relapsers, 2 frequent relapsers and 1 steroid dependent. The mean duration of remission following last dose of IVCP in these children was 12.5 +/- 11.9 months. Of the 7 children who continued to be proteinuric, 3 became edema free and have not required any albumin infusion or diuretics. One other died due to peritonitis 2 years after the last dose of IVCP. The mean total protein and serum albumin levels following the IVCP infusion were significantly higher than those prior to therapy (6.5+/-1.0 mg/dl Vs 5.0+/-0.8) (p=0.0004) and (3.5+/-0.7 g/dl Vs 2.3+/0.7) (p = 0.000007) respectively. The serum creatinine levels following IVCP therapy (0.8+/-0.2 mg/dl) were significantly lower than those prior to treatment (1.0+/-0.6 mg/dl) (p=0.02). The only side effects that were observed were transient nausea and vomiting during infusion (n=2) and alopecia (n=1). None of the children developed leukopenia or hemorrhagic cystitis. CONCLUSION: IVCP infusions appear to be safe, effective and economical therapeutic modality in steroid resistant children with idiopathic FSGS.
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