<SEC-DOCUMENT>0001654954-18-002887-index.html : 20180419 <SEC-HEADER>0001654954-18-002887.hdr.sgml : 20180419 <ACCEPTANCE-DATETIME>20180321163522 <PRIVATE-TO-PUBLIC> ACCESSION NUMBER: 0001654954-18-002887 CONFORMED SUBMISSION TYPE: CORRESP PUBLIC DOCUMENT COUNT: 1 FILED AS OF DATE: 20180321 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: CORRESP BUSINESS ADDRESS: STREET 1: 1825 K STREET STREET 2: SUITE 510 CITY: WASHINGTON, D.C. STATE: DC ZIP: 33602 BUSINESS PHONE: (800) 304-9888 MAIL ADDRESS: STREET 1: 1825 K STREET STREET 2: SUITE 510 CITY: WASHINGTON, D.C. STATE: DC ZIP: 33602 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>CORRESP <SEQUENCE>1 <FILENAME>filename1.htm <TEXT> Document 1 - file: filename1.htm
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