Attached files
| file | filename |
|---|---|
| EX-31.2 - Oncotelic Therapeutics, Inc. | ex32-1.htm |
| 10-K/A - Oncotelic Therapeutics, Inc. | form10-ka.htm |
Exhibit 31.1
MATEON THERAPEUTICS, INC.
CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002
I, Vuong Trieu, Ph.D., certify that:
| 1. | I have reviewed this Amendment No. 1 to the Annual Report on Form 10-K of Mateon Therapeutics, Inc.; |
| 2. | Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report; |
| By: | /s/ Vuong Trieu | |
| Vuong Trieu, Ph.D. | ||
| Chief Executive Officer (Principal Executive Officer) | ||
| Date: May 20, 2020 | ||