Overview To Evaluate the Efficacy and Safety of Naxitamab in Patients With Refractory Ewing's Sarcoma (Butterfly) Status: RECRUITING Trial end date: 2028-07-31 Target enrollment: Participant gender: Summary Prospective, interventional, open, randomized, national, multicenter, non-commercial trialPhase: PHASE2 Details Lead Sponsor: Anna RaciborskaCollaborator: Wroclaw Medical UniversityTreatments: naxitamab