Participation in an investigational drug study or history of receiving any investigational treatment within 30 days prior to initiation of treatment on this study, except for testosterone- lowering therapy in men with prostate cancer. NANT TNBC Vaccine NantKwest, Inc. Clinical Trial Protocol: QUILT -3.067 Amendment 2 Confidential and Proprietary 12 16. Assessed by the Investigator to be unable or unwilling to comply with the requirements of the protocol. 17. Concurrent participation in any interventional clinical trial. 18.