-- Antolimab treatment provided durable symptom improvement and blood and tissue eosinophil depletion -- -- Symptomatic benefit increased with duration of antolimab treatment -- REDWOOD CITY, Calif., May 04, 2020 (GLOBE NEWSWIRE) -- Allakos Inc. (the "Company") ( ALLK ), a biotechnology company developing antolimab (AK002) for the treatment of eosinophil and mast cell-related diseases, today reported results from a long-term open-label extension (OLE) study of antolimab for the treatment of patients with eosinophilic gastritis (EG) and/or eosinophilic duodenitis (EoD). The results were accepted for oral presentation and presented virtually at the Digestive Disease Week (DDW) Annual Meeting. The Company previously announced the initiation of a Phase 3 study in EG and/or EoD and initiation of a Phase 2/3 study in eosinophilic esophagitis.