Evaluation of the efficacy and safety of salvage photodynamic therapy by talaporfin sodium for cervical esophageal cancers and lesions larger than 3 cm

Salvage photodynamic therapy with talaporfin sodium has a high local control rate for esophageal cancer after definitive chemoradiotherapy. The eligibility criteria for photodynamic therapy include the absence of invasion to the cervical esophagus and a 3 cm maximum longitudinal lesion length. There is little evidence regarding the efficacy and safety of lesions outside the eligibility criteria. This retrospective cohort study evaluated the...