Intravenous immunoglobulin therapy for refractory interstitial lung disease associated with polymyositis/dermatomyositis

Yuzo Suzuki, Hiroshi Hayakawa, Seiichi Miwa, Masahiro Shirai, Masato Fujii, Hitoshi Gemma, Takafumi Suda, Kingo Chida
Lung 2009, 187 (3): 201-6
Interstitial lung disease (ILD) associated with polymyositis/dermatomyositis (ILD-PM/DM), including amyopathic dermatomyositis (ADM), is recognized as an important condition because it frequently causes death, despite intensive therapy with high-dose corticosteroid and immunosuppressive agents, such as cyclosporine A and cyclophosphamide. Intravenous immunoglobulin therapy (IVIG) has shown efficacy for myopathy associated with PM/DM, but its usefulness for ILD-PM/DM is unclear. This study was designed to investigate the efficacy of IVIG for refractory ILD-PM/DM. A review was made of medical charts of five patients (2 men and 3 women) who were treated with IVIG for refractory ILD-PM/DM resistant to high-dose corticosteroid and cyclosporine A and/or cyclophosphamide. One patient had acute ILD-PM and four patients had acute ILD-ADM. Of the five patients, one patient with ILD-PM and one patient with ILD-ADM survived. No adverse reactions were seen due to IVIG treatment. There were no critical differences in the clinical parameters and clinical courses between survivors and nonsurvivors. IVIG treatment is safe and could be an effective salvage therapy for refractory ILD-PM/DM in certain cases, suggesting that further controlled trials are worthwhile.

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