Two patients with pure red cell aplasia were treated with intermittent administration of methotrexate. One who was refractory to conventional immunosuppressive therapy showed a favorable response to methotrexate within 2 weeks of treatment and entered complete remission. The other also showed an increase in reticulocytes within 3 weeks of methotrexate treatment. Although continuous administration of methotrexate was abandoned in the second case because of its hepatotoxicity, our results suggest that methotrexate may be effective in patients with pure red cell aplasia refractory to conventional immunosuppressive therapy.
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© 1989 S. Karger AG, Basel
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