Phio Pharmaceuticals Corp is a US-based biotechnology company. It is principally engaged in developing immuno-oncology therapeutics based on its proprietary self-delivering RNAi platform and Samcyprone, a topical immunomodulator, which addresses significant unmet medical needs. The company's pipeline products include PH-762, PH-804, PH-790, and others.RXi Pharmaceuticals Corp is principally engaged in developing therapeutics based on its proprietary self-delivering RNAi platform and Samcyprone, a topical immunomodulator, which addresses significant unmet medical needs.