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Cover
Dec. 02, 2024
Cover [Abstract]  
Document Type 8-K
Amendment Flag false
Document Period End Date Dec. 02, 2024
Entity File Number 001-38898
Entity Registrant Name APPLIED THERAPEUTICS, INC.
Entity Central Index Key 0001697532
Entity Tax Identification Number 81-3405262
Entity Incorporation, State or Country Code DE
Entity Address, Address Line One 545 Fifth Avenue
Entity Address, Address Line Two Suite 1400
Entity Address, City or Town New York
Entity Address, State or Province NY
Entity Address, Postal Zip Code 10017
City Area Code 212
Local Phone Number 220-9226
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Title of 12(b) Security Common stock
Trading Symbol APLT
Security Exchange Name NASDAQ
Entity Emerging Growth Company true
Elected Not To Use the Extended Transition Period true