Use of an IgA-depleted intravenous immunoglobulin in a patient with an anti-IgA antibody.

In this report we describe the use of an IgA-depleted preparation of intravenous gamma-globulin in a patient with hypogammaglobulinemia and an anti-IgA antibody. An IgA containing intravenous gamma-globulin had previously produced anaphylactoid reactions, immune complex formation, and complement activation. The patient has had no reactions to the IgA-depleted preparation after 18 months of treatment; immune complex formation and complement activation have not been demonstrated, and the titer of antibody to IgA has diminished.