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  • Title: Pulsed intravenous cyclophosphamide and methylprednisolone therapy in refractory pemphigus.
    Author: Saha M, Powell AM, Bhogal B, Black MM, Groves RW.
    Journal: Br J Dermatol; 2010 Apr; 162(4):790-7. PubMed ID: 19922532.
    Abstract:
    BACKGROUND: Pemphigus is a rare autoimmune blistering disorder. The mainstay of current treatment is high-dose oral corticosteroid therapy in combination with a steroid-sparing agent. Adjuvant therapy is important for disease control and to reduce the iatrogenic effects of oral prednisolone. Pulsed therapy with intravenous methylprednisolone and cyclophosphamide (PPC) has been shown to be an effective treatment but there are currently few data on its use in patients who have failed to respond to conventional immunosuppression. OBJECTIVES: To report the clinical and immunological responses of 21 patients with pemphigus refractory to prednisolone and azathioprine or mycophenolate mofetil treated in our department with a standard protocol of monthly PPC. METHODS: Patients with pemphigus were identified who had undergone PPC therapy during the period between 1997 and 2006. Initial clinical severity and response to treatment was assessed. In addition, change in intercellular antibody titres and desmoglein 1 and 3 antibodies to PPC therapy was also recorded. RESULTS: Of the 21 patients treated, seven had an excellent response, two a good response, five a moderate response, six a minimal response and one patient had no clinical response. Four patients achieved complete clinical remission and the number of pulses for these patients varied between 11 and 22. We observed significant reductions in indirect immunofluorescence titres for normal human skin substrate (P = 0.0078) and antidesmoglein 1 and 3 autoantibody levels (P = 0.007 and P = 0.0085, respectively) from pre-PPC therapy to 1 year after the last pulse. All patients were able to reduce their prednisolone dose from a pre-pulsing median dose of 40-10 mg at the last pulse with a median dose reduction of 66% (P < 0.001). The most common adverse effect was transient lymphopenia (12 patients); nonlife-threatening sepsis (seven patients) and premature ovarian failure (two patients) also occurred. CONCLUSIONS: PPC can be an effective treatment for refractory pemphigus but its adverse effects should be considered prior to therapy and closely monitored in patients on treatment.
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