Overview S-1 and Radiotherapy for Elderly Esophageal Cancer Patients Status: Unknown status Trial end date: 2020-12-01 Target enrollment: Participant gender: Summary To investigate the efficacy and toxicity of S-1 with concurrent radiotherapy in older patients with esophageal cancer. Phase: Phase 2 Details Lead Sponsor: Zhejiang Provincial People's HospitalZhejiang Provincial People’s Hospital