Consent
of Independent Registered Public Accounting Firm
We
consent to the incorporation by reference in this Registration
Statement on Form S-3 of GT Biopharma, Inc. of our report dated
March 1, 2018, relating to our audit of the consolidated financial
statements as of and for the years ended December 2017 and 2016,
which appears in the Annual Report on Form 10-K of GT Biopharma,
Inc. for the year ended December 31, 2017. 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
March
1, 2018
