Overview Walnut Oral Immunotherapy for Tree Nut Allergy Status: Withdrawn Trial end date: 2013-12-01 Target enrollment: Participant gender: Summary The purpose of this study is to determine if walnut oral immunotherapy can be used in subjects allergic to tree nuts to decrease their tree nut allergy and induce changes in their immune system. Phase: Phase 1/Phase 2 Details Lead Sponsor: University of North Carolina, Chapel Hill