v3.25.1
Cover
Jun. 06, 2025
Cover [Abstract]  
Document Type 8-K
Amendment Flag false
Document Period End Date Jun. 06, 2025
Entity File Number 001-36304
Entity Registrant Name PHIO PHARMACEUTICALS CORP.
Entity Central Index Key 0001533040
Entity Tax Identification Number 45-3215903
Entity Incorporation, State or Country Code DE
Entity Address, Address Line One 11 Apex Drive
Entity Address, Address Line Two Suite 300A, PMB 2006
Entity Address, City or Town Marlborough
Entity Address, State or Province MA
Entity Address, Postal Zip Code 01752
City Area Code 508
Local Phone Number 767-3861
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Title of 12(b) Security Common Stock, par value $0.0001 per share
Trading Symbol PHIO
Security Exchange Name NASDAQ
Entity Emerging Growth Company false