Internal Medicine
Online ISSN : 1349-7235
Print ISSN : 0918-2918
ISSN-L : 0918-2918
Cyclosporin A Followed by the Treatment of Acute Exacerbation of Idiopathic Pulmonary Fibrosis with Corticosteroid
Naohiko INASEMegumi SAWADAYoshio OHTANIShuji MlYAKESusumu ISOGAIHiroyuki SAKASHITAYasunari MIYAZAKIYasuyuki YOSHIZAWA
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2003 Volume 42 Issue 7 Pages 565-570

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Abstract

Objective Idiopathic pulmonary fibrosis (IFF) is a slowly progressive disease with a poor prognosis. Acute exacerbation is the worst stage in the clinical course of IFF, as the condition is unresponsive to most conventional therapies. Corticosteroids and other immunosuppressive drugs have been attempted for the treatment of acute exacerbation, but only with very limited effectiveness. This study was performed to examine the effect of cyclosporin A (CsA) on acute exacerbation of IPF.
Patients and Methods Thirteen patients with acute exacerbation of IFF were retrospectively studied. All 13 patients received pulse-therapy with methylprednisolone (1, 000 mg per day for 3 days), followed by oral prednisolone (40-60 mg per day). Seven patients were received CsA (1.0-2.0 mg/kg per day) after the treatment with corticosteroids. We attempted to keep the blood trough level of CsA between 100 and 150 ng/ml.
Results Among the 7 patients treated with CsA, 4 patients have survived for 60, 120, 276 and 208 weeks, respectively; 2 did not respond to pulse-therapy with methylprednisolone and died within 8 weeks after the start of CsA treatment. The other patient experienced re-exacerbation and died 87 weeks after the discontinuation of CsA due to the development of viral encephalitis. In contrast, all 6 patients treated without CsA died within 66 weeks after the onset of acute exacerbation. Four of these patients responded to pulse-therapy with methylprednisolone, but their condition deteriorated again while the subsequent prednisolone was being tapered.
Conclusion CsA seems to prevent re-exacerbation of IPF and improve the patients' chances for long-term survival.
(Internal Medicine 42: 565-570, 2003)

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