Overview Spirulina Derivative for Radiation Esophagitis Status: NOT_YET_RECRUITING Trial end date: 2026-08-31 Target enrollment: Participant gender: Summary To evaluate the efficacy and safety of a Spirulina-derived product in preventing and treating radiation-induced esophagitis in esophageal cancer patients undergoing intensity-modulated radiotherapy (IMRT).Phase: PHASE2 Details Lead Sponsor: West China HospitalTreatments: Radiotherapy