Attached files
file | filename |
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EX-5.1 - EX-5.1 - Oncotelic Therapeutics, Inc. | d387311dex51.htm |
S-1/A - S-1/A - Oncotelic Therapeutics, Inc. | d387311ds1a.htm |
Exhibit 23.1
CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
We hereby consent to the incorporation by reference, in the Prospectus constituting a part of this Amendment No. 2 to the Registration Statement on Form S-1 (No. 333-217904), of our report dated March 30, 2017 (which report expresses an unqualified opinion and includes an explanatory paragraph expressing substantial doubt about the Companys ability to continue as a going concern), relating to the financial statements of Mateon Therapeutics, Inc. included in the Annual Report on Form 10-K for the year ended December 31, 2016.
We also consent to the reference to us under the caption Experts in the Prospectus.
/s/ OUM & CO. LLP
San Francisco, California
August 2, 2017