Methotrexate in the treatment of steroid-dependent asthma.

A 63-year-old woman with refractory psoriatic arthritis and asthma, requiring intermittent steroid therapy, was treated with methotrexate (MTX). Her arthritis responded rapidly and it was noted that her asthma required no further steroid therapy. Six patients with established steroid-dependent asthma were then treated with 7.5 to 15.0 mg of MTX per week, after protocols used to treat psoriasis and rheumatoid arthritis. Five patients reduced their steroid usage while on MTX. Side effects were minimal while taking MTX. It was concluded that MTX may have a role in reducing cortisone requirements in steroid-dependent asthma.