X0206 3 2025-02-19 1 0001533040 Phio Pharmaceuticals Corp. PHIO 0001641063 Deming David H C/O PHIO PHARMACEUTICALS CORP. 11 APEX DR., SUITE 300A, PMB 2006 MARLBOROUGH MA 01752 1 0 0 0 Exhibit 24 - Power of Attorney /s/ Robert Bitterman attorney-in-fact for David H. Deming 2025-03-04