It's past the study phase. My friend's daughter just "graduated" from her treatment a short while ago. They went to Oral Immunotherapy (OIT) at Rocky Mountain Allergy in Layton, Utah. She used to be on the "smell a peanut and you might die" side of the spectrum. Yes, she has to eat a handful of peanut M&M's every day for the rest of her life to keep from regressing.