v3.26.1
Cover
Jun. 23, 2026
Cover [Abstract]  
Document Type 8-K
Amendment Flag false
Document Period End Date Jun. 23, 2026
Entity File Number 001-39231
Entity Registrant Name PASSAGE BIO, INC.
Entity Central Index Key 0001787297
Entity Tax Identification Number 82-2729751
Entity Incorporation, State or Country Code DE
City Area Code 267
Local Phone Number 866-0311
Written Communications true
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Title of 12(b) Security Common Stock, $0.0001 par value per share
Trading Symbol PASG
Security Exchange Name NASDAQ
Entity Emerging Growth Company false