January 27, 2026 Alan Urban Chief Financial Officer GT Biopharma, Inc. 505 Montgomery Street 10th Floor San Francisco, California 94111 Re: GT Biopharma, Inc. Registration Statement on Form S-1 Filed January 21, 2026 File No. 333-292856 Dear Alan Urban: This is to advise you that we have not reviewed and will not review your registration statement. Please refer to Rules 460 and 461 regarding requests for acceleration. We remind you that the company and its management are responsible for the accuracy and adequacy of their disclosures, notwithstanding any review, comments, action or absence of action by the staff. Please contact Jimmy McNamara at 202-551-7349 with any questions. Sincerely, Division of Corporation Finance Office of Life Sciences cc: JR Lanis