<SEC-DOCUMENT>0001654954-21-004510-index.html : 20210422
<SEC-HEADER>0001654954-21-004510.hdr.sgml : 20210422
<ACCEPTANCE-DATETIME>20210422060314
ACCESSION NUMBER:		0001654954-21-004510
CONFORMED SUBMISSION TYPE:	S-1
PUBLIC DOCUMENT COUNT:		5
FILED AS OF DATE:		20210422
DATE AS OF CHANGE:		20210422

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			GT Biopharma, Inc.
		CENTRAL INDEX KEY:			0000109657
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		IRS NUMBER:				941620407
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		S-1
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-255429
		FILM NUMBER:		21843145

	BUSINESS ADDRESS:	
		STREET 1:		9350 WILSHIRE BLVD.
		STREET 2:		SUITE 203
		CITY:			BEVERLY HILLS
		STATE:			CA
		ZIP:			90212
		BUSINESS PHONE:		(800) 304-9888

	MAIL ADDRESS:	
		STREET 1:		9350 WILSHIRE BLVD.
		STREET 2:		SUITE 203
		CITY:			BEVERLY HILLS
		STATE:			CA
		ZIP:			90212

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	OXIS INTERNATIONAL INC
		DATE OF NAME CHANGE:	19940916

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	DDI PHARMACEUTICALS INC
		DATE OF NAME CHANGE:	19920703

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	DIAGNOSTIC DATA INC /DE/
		DATE OF NAME CHANGE:	19850312
</SEC-HEADER>
<DOCUMENT>
<TYPE>S-1
<SEQUENCE>1
<FILENAME>gtbp_s-1.htm
<DESCRIPTION>FORM S-1
<TEXT>
Document 1 - file: gtbp_s-1.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-5.1
<SEQUENCE>2
<FILENAME>gtbp_ex5-1.htm
<DESCRIPTION>OPINION OF BAKER & MCKENZIE LLP
<TEXT>
Document 2 - file: gtbp_ex5-1.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-23.1
<SEQUENCE>3
<FILENAME>gtbp_ex23-1.htm
<DESCRIPTION>CONSENT OF SELIGSON & GIANNATTASIO, LLP
<TEXT>
Document 3 - file: gtbp_ex23-1.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-23.2
<SEQUENCE>4
<FILENAME>gtbp_ex23-2.htm
<DESCRIPTION>CONSENT OF WEINBERG & COMPANY
<TEXT>
Document 4 - file: gtbp_ex23-2.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>5
<FILENAME>gtbp_s-1000.jpg
<DESCRIPTION>IMAGE
<TEXT>
Document 5 - file: gtbp_s-1000.jpg

</DOCUMENT>
</SEC-DOCUMENT>