
Phio Pharmaceuticals Corp., a clinical stage biopharmaceutical company, engages in the development of immuno-oncology therapeutics in the United States. It develops PH-762, an INTASYL compound designed to reduce the expression of PD-1 in multi-center Phase 1b dose-escalating clinical trials; PH-894, an INTASYL compound that is designed to specifically silence BRD4, a protein that controls gene expression in both T cells and tumor cells in preclinical studies. The company was formerly known as RXi Pharmaceuticals Corporation and changed its name to Phio Pharmaceuticals Corp. in November 2018.