Published SCID mouse xenografts: ch14.18 with human PBMCs and IL-2 prevented GD2+ melanoma growth
“In a separate study, administration of ch14.18 with PBMCs and IL-2 prevented the establishment and growth of GD2+ melanoma tumours, whereas treatment with ch14.18 alone or PBMCs and IL-2 alone had no effect on tumour growth.”
Not reported in the public reviews. Reviewers summarise selectively, so this usually means it wasn't discussed publicly, not that it wasn't studied.
Reviewer's view of the efficacy data
EMA: literature shows ADCC/CDC killing; IL-2/GM-CSF enhancement supports the combination regimen
“The augmentation of cell lysis and ADCC in the presence of IL-2 and GM-CSF, respectively, therefore aims to optimise cytotoxicity in vivo and is therefore supportive of the proposed treatment regimen.”