Vanquish Oncology reported their intention to begin a Phase I human clinical trial in cancer patients to begin in early 2015, and indeed the Phase 1 trial of PAC-1 opened for enrollment in February 2015 (NCT02355535). This trial is being conducted at the University of Illinois Cancer Center in Chicago, at the Sidney Kimmel Cancer Center at Johns Hopkins, and at Regions Hospital in St. Paul, MN. A Phase 1b trial of PAC-1 plus temozolomide opened in late 2017 at the same three sites (NCT03332355); patients with high grade glioma (glioblastoma multiforme (GBM) or anaplastic astrocytoma) after progression following standard first line therapy are eligible for this trial.