Phio Pharmaceuticals Corp. announced positive in vivo data that provide further evidence on the utility of its INTASYL self-delivering RNAi therapy platform in the field of immuno-oncology. The new study data show how INTASYL can be easily deployed to target multiple proteins and provide evidence of the synergy of the Company's pipeline products. In the study, INTASYL specifically dual-targeting BRD4 and PD-1 elicited complete tumor responses in an in vivo hepatoma model, and significantly outperformed the efficacy of small molecule and antibody treatments towards the same targets. In this study, the Company assessed the efficacy of mouse/human BRD4-targeting INTASYL PH-894 as monotherapy or co-formulated with mouse PD-1 targeting INTASYL mPH-762, in treating a subcutaneous Hepa1-6 model of murine hepatoma in C57BL/6N mice. Positive controls included JQ-1, a small molecule inhibitor of BRD4 and anti-mouse PD-1 monoclonal antibody (mAb) or both treatments.