v3.25.2
Document And Entity Information
Jul. 24, 2025
Cover [Abstract]  
Document Type 8-K
Amendment Flag false
Document Period End Date Jul. 24, 2025
Entity Registrant Name MEI Pharma, Inc.
Entity Central Index Key 0001262104
Entity Emerging Growth Company false
Entity File Number 001-41827
Entity Incorporation, State or Country Code DE
Entity Tax Identification Number 51-0407811
Entity Address, Address Line One 9920 Pacific Heights Blvd.,
Entity Address, Address Line Two Suite 150
Entity Address, City or Town San Diego
Entity Address, State or Province CA
Entity Address, Postal Zip Code 92121
City Area Code 858
Local Phone Number 369-7100
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Title of 12(b) Security Common Stock, $0.00000002 par value
Trading Symbol MEIP
Security Exchange Name NASDAQ