IL2 and neuroblastoma: In other anti-GD2 immunotherapeutic strategies, a fusion protein with a humanized version of anti-GD2 mAb (hu14.18)-linked to human interleukin 2 (IL2) (EMD273063) was developed and tested for patients with GD2+ tumors such as neuroblastoma and melanoma in Phase I/II trials (NCT00590824, and NCT00082758) [213,214,215,216].