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  • Title: [Assessment on intermittent intravenous cyclophosphamide pulse therapy in diffuse proliferative lupus nephritis].
    Author: Okubo T, Ideguchi H, Ihata A, Nakamura M, Ueda A, Ohno S, Hagiwara E, Aoki A, Shirai A, Ishigatsubo Y.
    Journal: Ryumachi; 2000 Jun; 40(3):605-11. PubMed ID: 10920685.
    Abstract:
    OBJECTIVE: To determine whether intravenous cyclophosphamide pulse therapy (IVCY) is effective for treating patients with diffuse proliferative lupus nephritis (DPLN) who were 1) refractory to methylprednisolone pulse therapy (MP) or 2) could not be treated with MP because of severe diabetes or steroid induced psychosis. METHODS: Seven patients with biopsy proven DPLN were studied after informed consent. Five of them received IVCY after a failure to achieve renal remission with at least 2 cycles of MP therapy. Of the other 2 patients, one had severe diabetes and the other a history of steroid induced psychosis. Bolus therapy with cyclophosphamide (0.5 g/m2 body surface area) was given once a month for 6 consecutive months and then once every 3 months for a total treatment period of 1 year. All patients were given oral prednisone, 0.5 mg/kg per day. The prednisone dose was tapered to the minimal dose required for controlling the disease. After 1 year, the renal status of the patients were evaluated. RESULTS: At 1 year, 4 of the 7 patients achieved substantial improvement. Although the other 3 patients did not satisfy the definition of substantial improvement, none of them had progressive disease. Adverse events were mild and did not require any treatment, with 2 cases of leukocytopenia without fever or major infection. No cases of hemorrhagic cystitis or amenorrhea were observed. CONCLUSIONS: IVCY was 1) effective in the treatment of DPLN which was refractory to MP and 2) relatively safe with minimal side effects.
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