What is the role of anti-immunoglobulin E (IgE) in the prevention of anaphylaxis?

Updated: May 16, 2018
  • Author: S Shahzad Mustafa, MD; Chief Editor: Michael A Kaliner, MD  more...
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Anti-IgE may be a good prophylactic agent for severe food allergy, but the one study published to date was with TNX-901, which is not being marketed. A phase II multicenter study with omalizumab (Xolair) in peanut allergy was discontinued prematurely because of safety concerns in some study subjects. Obtained data were insufficient to draw any conclusions, but a slight trend existed toward greater tolerability of peanuts in subjects treated with omalizumab compared to placebo.

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