Eosinophilic esophagitis is a progressive allergic disease characterized by difficulty swallowing and gastric reflux. It results from an elevated number of inflammatory immune cells in the walls of the esophagus. If left untreated, it can cause long-term complications, including scarring and difficulty swallowing. Revolo Biotherapeutics is developing a synthetic peptide therapy that can potentially restore immune system homeostasis in EOE and other allergic diseases. We spoke to Woody Bryan, president and CEO of Revolo, about eosinophilic esophagitis, how the company’s experimental therapy restores homeostasis to the immune system, and how people exposed to tuberculosis pointed the way toward the experimental therapy.