Exhibit
23.1
[LETTERHEAD
OF SELIGSON & GIANNATTASIO, LLP]
Consent
of Independent Registered Public Accounting Firm
We
consent to the incorporation by reference in this Post-Effective
Amendment No. 1 on Registration Statement on Form S-1 of GT
Biopharma, Inc. of our report dated March 27, 2020, relating to our
audit of the consolidated financial statements as of December 31,
2019 and for the year then ended. Our report included an
explanatory paragraph expressing substantial doubt about the
ability of GT Biopharma, Inc. to continue as a going
concern.
We also
consent to the reference to our Firm under the caption
“Experts” in the Prospectus, which is part of this
Registration Statement.
/s/Seligson & Giannattasio, LLP
Seligson
& Giannattasio, LLP
White
Plains, New York
April
22, 2021