Why natural killer cells in triple negative breast cancer?

Table 1 List of immunotherapeutic agents in various clinical trial phases and earliest expected completion dates of most significant trials[20]

Drug	Function	Trial phase	Est. date of completion
Pembrolizumab	PD-1 Inhibitor	III	December 2019
Nivolumab	PD-1 Inhibitor	II	August 2022
Atezolizumab	PDL-1 Inhibitor	III	April 2020
Avelumab	PDL-1 Inhibitor	III	June 2023
Durvalumab	PD-1 Inhibitor	I/II	October 2019
Tremelimumab	CTLA-4 Inhibitor	II	October 20181

¹Phase II complete, phase III not yet begun. PD: Programmed death; PDL: Programmed death ligand; CTLA-4: Cytotoxic T-lymphocyte-associated protein 4.