Table 1

- Recent anti-breast cancer immunotherapy platforms commencing clinical trials.

PlatformsTargets (primary mechanism)Status of clinical trialsBC subtypes that can benefit fromSources
VaccineGP2 (amino acids 654-662)Phase 2 (NCT00524277)Her-2+ BC53,54
CAR T-cellTn epitope Mucin 1 (TnMUC1)Phase 1 (NCT04025216)TNBC55
CD133Phase 1, 2 (NCT02541370) completedBC55
Adoptive cell therapyTumour cells (LN-145)Phase 2 (NCT03449108)TNBC56
Tumour cellsPhase 1 (NCT00301730) completedHer-2+ BC who have undergone stem cell transplant57
ICIProgrammed death-(PD)-1, in combination with imprime PGG (a soluble β-1,3/1,6 glucan isolated from the cell wall of a proprietary Saccharomyces cerevisiae yeast)Phase 2 (NCT02981303)TNBC58
PD-Ligand 1 (PD-L1): Avelumab in combination with PalbociclibPhase 2 (NCT04841148)recurrent metastatic BC59

CAR: chimeric antigen receptor, ICI: immune checkpoint inhibitor, BC: breast cancer, Her-2: human epidermal factor, TNBC: triple negative breast cancer