Expert sees peanut allergy solution within 5 years

By Will Dunham

WASHINGTON (Reuters) - A form of immunotherapy that could get rid of a person's allergy to peanuts is likely within five years, even as the condition appears to grow more and more common, a U.S. expert said on Thursday.

Peanut allergy often appears in the first three years of life, with the allergic reaction to eating peanuts ranging from a minor irritation all the way to a life-threatening, whole-body allergic response called anaphylaxis.

Many children grow out of other food allergies such as milk or eggs, but only about 20 percent lose their peanut allergy.

Dr. Wesley Burks, a food allergy expert at Duke University Medical Center in Durham, North Carolina, wrote in the Lancet medical journal that a solution appears to be on the horizon.

"I think there's some type of immunotherapy that will be available in five years. And the reason I say that is that there are multiple types of studies that are ongoing now," Burks said in a telephone interview.

Ideally, such a therapy would change a person's immune response to peanuts from an allergic one to a nonallergic one, Burks said.

He said one possible approach is using engineered peanut proteins as immunotherapy. Other approaches are showing promise, he said, including the use of Chinese herbal medicine in animal research.

Genetic engineering may also produce an allergen-free peanut, Burks said.