| Cover | Aug. 10, 2020 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Aug. 10, 2020 |
| Entity File Number | 001-38552 |
| Entity Registrant Name | PROVENTION BIO, INC. |
| Entity Central Index Key | 0001695357 |
| Entity Tax Identification Number | 81-5245912 |
| Entity Incorporation, State or Country Code | DE |
| Entity Address, Address Line One | P.O. Box 666 |
| Entity Address, City or Town | Oldwick |
| Entity Address, State or Province | NJ |
| Entity Address, Postal Zip Code | 08858 |
| City Area Code | (908) |
| Local Phone Number | 336-0360 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Common Stock, $0.0001 par value per share |
| Trading Symbol | PRVB |
| Security Exchange Name | NASDAQ |
| Entity Emerging Growth Company | true |
| Elected Not To Use the Extended Transition Period | true |
