<SEC-DOCUMENT>0001654954-18-011827-index.html : 20181101 <SEC-HEADER>0001654954-18-011827.hdr.sgml : 20181101 <ACCEPTANCE-DATETIME>20181101093025 ACCESSION NUMBER: 0001654954-18-011827 CONFORMED SUBMISSION TYPE: 8-K PUBLIC DOCUMENT COUNT: 5 CONFORMED PERIOD OF REPORT: 20181101 ITEM INFORMATION: Other Events ITEM INFORMATION: Financial Statements and Exhibits FILED AS OF DATE: 20181101 DATE AS OF CHANGE: 20181101 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: FL FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 8-K SEC ACT: 1934 Act SEC FILE NUMBER: 000-08092 FILM NUMBER: 181152280 BUSINESS ADDRESS: STREET 1: 310 N. WESTLAKE BLVD. STREET 2: SUITE 206 CITY: WESTLAKE VILLAGE STATE: CA ZIP: 91362 BUSINESS PHONE: (800) 304-9888 MAIL ADDRESS: STREET 1: 310 N. WESTLAKE BLVD. STREET 2: SUITE 206 CITY: WESTLAKE VILLAGE STATE: CA ZIP: 91362 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-10.1 <SEQUENCE>2 <FILENAME>gtbp_ex101.htm <DESCRIPTION>LETTER FROM FOOD AND DRUG ADMINISTRATION <TEXT> Document 2 - file: gtbp_ex101.htm
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</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>4 <FILENAME>gtbp_ex101001.jpg <DESCRIPTION>IMAGE <TEXT> Document 4 - file: gtbp_ex101001.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>5 <FILENAME>gtbp_ex101002.jpg <DESCRIPTION>IMAGE <TEXT> Document 5 - file: gtbp_ex101002.jpg
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