Document and Entity Information - shares	9 Months Ended
	Sep. 30, 2020	Oct. 08, 2021
Cover [Abstract]
Entity Registrant Name	Gene Biotherapeutics, Inc.
Entity Central Index Key	0000772320
Document Type	10-Q
Document Period End Date	Sep. 30, 2020
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Entity Current Reporting Status	No
Entity Interactive Data Current	No
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		64,931,888
Document Fiscal Period Focus	Q3
Document Fiscal Year Focus	2020