Overview 99Tc-MDP for Thyroid-Associated Ophthalmopathy Status: Completed Trial end date: 2019-03-31 Target enrollment: Participant gender: Summary To investigate the efficacy,safety and tolerability of 99Tc-MDP in comparison to Methylprednisolone, in the treatment of participants suffering from active moderate to severe TAO. Phase: Phase 4 Details Lead Sponsor: Dalian UniversityTreatments: Methylene diphosphonateMethylprednisoloneMethylprednisolone AcetateMethylprednisolone HemisuccinatePrednisolonePrednisolone acetatePrednisolone hemisuccinatePrednisolone phosphateTechnetium Tc 99m Medronate