NCT06026657 2025-07-08Gemcitabine and Ex Vivo Expanded Allogenic Universal Donor, TGFβi Natural Killer (NK) Cells With or Without Naxitamab (Danyelza) for the Treatment of Patients With Metastatic, GD2 Expressing, HER2 Negative Breast CancerOhio State University Comprehensive Cancer CenterPhase 1/2 Recruiting42 enrolled