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Enlarge / Peanuts (credit: Getty | CFOTO/Future Publishing)
Living with food allergies can be a fraught existence. There is no cure, and the standard management is to be ever vigilant of everything you eat and have an emergency shot of epinephrine constantly handy in case an accidental ingestion leads to a swift, life-threatening reaction. But, for the millions of people in the US who live with such allergies, a new drug may dull the threat.
On Friday, the Food and Drug Administration approved the antibody drug omalizumab (brand name Xolair) as an injection to lessen allergic reactions to foods in people ages 1 and up. In a trial of 168 children and adults with multiple food allergies, participants who received shots of omalizumab for 16 to 20 weeks were much more likely to tolerate a test dose of allergy-inducing foods at the end than those who received a placebo.
Omalizumab—which was previously approved to treat asthma, hives, and nasal polyps—works by binding to a class of antibodies in the body called immunoglobulin E (IgE) that are specifically involved in allergic responses. The monoclonal antibody drug binds IgE, blocking it from binding to its target receptor, thus preventing it from triggering the immune responses that lead to allergy symptoms.
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