    <SEC-DOCUMENT>0001654954-21-006018-index.html : 20210519
    <SEC-HEADER>0001654954-21-006018.hdr.sgml : 20210519
    <ACCEPTANCE-DATETIME>20210519100357
    ACCESSION NUMBER:		0001654954-21-006018
    CONFORMED SUBMISSION TYPE:	8-K
    PUBLIC DOCUMENT COUNT:		20
    CONFORMED PERIOD OF REPORT:	20210519
    ITEM INFORMATION:		Regulation FD Disclosure
    ITEM INFORMATION:		Financial Statements and Exhibits
    FILED AS OF DATE:		20210519
    DATE AS OF CHANGE:		20210519

    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:		8-K
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-40023
    		FILM NUMBER:		21938746

    	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>8-K
    <SEQUENCE>1
    <FILENAME>gtbp_8k.htm
    <DESCRIPTION>CURRENT REPORT
    <TEXT>
    Document 1 - file: gtbp_8k.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.1
    <SEQUENCE>2
    <FILENAME>gtbp_ex991.htm
    <DESCRIPTION>PRESENTATION
    <TEXT>
    Document 2 - file: gtbp_ex991.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>3
    <FILENAME>gtbp_ex991000.jpg
    <DESCRIPTION>IMAGE
    <TEXT>
    Document 3 - file: gtbp_ex991000.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>4
    <FILENAME>gtbp_ex991001.jpg
    <DESCRIPTION>IMAGE
    <TEXT>
    Document 4 - file: gtbp_ex991001.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>5
    <FILENAME>gtbp_ex991002.jpg
    <DESCRIPTION>IMAGE
    <TEXT>
    Document 5 - file: gtbp_ex991002.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>6
    <FILENAME>gtbp_ex991003.jpg
    <DESCRIPTION>IMAGE
    <TEXT>
    Document 6 - file: gtbp_ex991003.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>7
    <FILENAME>gtbp_ex991004.jpg
    <DESCRIPTION>IMAGE
    <TEXT>
    Document 7 - file: gtbp_ex991004.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>8
    <FILENAME>gtbp_ex991005.jpg
    <DESCRIPTION>IMAGE
    <TEXT>
    Document 8 - file: gtbp_ex991005.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>9
    <FILENAME>gtbp_ex991006.jpg
    <DESCRIPTION>IMAGE
    <TEXT>
    Document 9 - file: gtbp_ex991006.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>10
    <FILENAME>gtbp_ex991007.jpg
    <DESCRIPTION>IMAGE
    <TEXT>
    Document 10 - file: gtbp_ex991007.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>11
    <FILENAME>gtbp_ex991008.jpg
    <DESCRIPTION>IMAGE
    <TEXT>
    Document 11 - file: gtbp_ex991008.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>12
    <FILENAME>gtbp_ex991009.jpg
    <DESCRIPTION>IMAGE
    <TEXT>
    Document 12 - file: gtbp_ex991009.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>13
    <FILENAME>gtbp_ex991010.jpg
    <DESCRIPTION>IMAGE
    <TEXT>
    Document 13 - file: gtbp_ex991010.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>14
    <FILENAME>gtbp_ex991011.jpg
    <DESCRIPTION>IMAGE
    <TEXT>
    Document 14 - file: gtbp_ex991011.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>15
    <FILENAME>gtbp_ex991012.jpg
    <DESCRIPTION>IMAGE
    <TEXT>
    Document 15 - file: gtbp_ex991012.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>16
    <FILENAME>gtbp_ex991013.jpg
    <DESCRIPTION>IMAGE
    <TEXT>
    Document 16 - file: gtbp_ex991013.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>17
    <FILENAME>gtbp_ex991014.jpg
    <DESCRIPTION>IMAGE
    <TEXT>
    Document 17 - file: gtbp_ex991014.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>18
    <FILENAME>gtbp_ex991015.jpg
    <DESCRIPTION>IMAGE
    <TEXT>
    Document 18 - file: gtbp_ex991015.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>19
    <FILENAME>gtbp_ex991016.jpg
    <DESCRIPTION>IMAGE
    <TEXT>
    Document 19 - file: gtbp_ex991016.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>20
    <FILENAME>gtbp_ex991017.jpg
    <DESCRIPTION>IMAGE
    <TEXT>
    Document 20 - file: gtbp_ex991017.jpg

    </DOCUMENT>
    </SEC-DOCUMENT>