Biologics targeting IL-5 have been exploited and investigated in EoE and other non-EoE EGIDs, such as mepolizumab, reslizumab, and benralizumab. Mepolizumab and reslizumab bind directly to the IL-5 molecule, interfering with its attachment to IL-5Rα expressed on the eosinophil cell surface. While Benralizumab targets the eosinophilic IL-5Rα chain expressed on the granulocyte membrane, blocking IL-5 access to its receptor [,]. However, Benralizumab has been discontinued by its manufacturer presently. In a recent randomized controlled trial (RCT) assessing Benralizumab, it was observed that although the medication alleviates hypereosinophilia by eliminating all circulating eosinophils in EoG, patients continued to exhibit persistent signs, symptoms, and biomarkers associated with EoG []. Our study revealed that EoE patients’ histologic remission and endoscopic improvement were both significantly enhanced by treatment with anti-IL-5 monoclonal antibodies. Nevertheless, the same effects were not observed in symptom evaluation. One possible explanation for the disparities in histological and symptomatic responses resulting from anti-IL-5 monoclonal antibody treatment is that the RCTs we included used different criteria to assess symptomatic responses. One example is the EoE Symptom Activity Index (EEsAI) score, which focuses on the symptoms of dysphagia, whereas the physician’s eosinophilic oesophagitis global assessment scores were used for analyses that focus on the overall assessment of patient symptoms. However, there is no consensus on which scores to use to assess these patients, so studies of the different scores used were summarized. Indeed, the assertion posited by Kliewer et al. in their study presents another plausible interpretation suggesting that the pathogenesis of EGIDs may not solely hinge on eosinophilic mechanisms. Instead, it underscores a predilection for a comprehensive type 2 immune targeting approach., The therapeutic efficacy of biologics for EoE and other non-EoE EGIDs is still under debate. Therefore, we aim to assess the efficacy and safety of biologics compared to a placebo in the treatment of EoE patients by performing a comprehensive meta-analysis of existing high-quality, double-blind randomized controlled trials (RCTs)., Eosinophilic esophagitis (EoE) is a chronic, allergen-mediated, eosinophil-predominant, type 2 inflammatory disease that progresses to fibrostenosis of the esophagus if left untreated. This review focuses on biologics therapy in EoE..