Attached files

file filename
EXCEL - IDEA: XBRL DOCUMENT - GT Biopharma, Inc.Financial_Report.xls
EX-31.2 - CERTIFICATION SECTION 302 - GT Biopharma, Inc.ex312.htm
EX-32.2 - CERTIFICATION SECTION 906 - GT Biopharma, Inc.ex322.htm
EX-31.1 - CERTIFICATION SECTION 302 - GT Biopharma, Inc.ex311.htm
10-Q - OXIS INTERNATIONAL QUARTERLY REPORT - GT Biopharma, Inc.oxis10q063013.htm



Exhibit 32.1
CERTIFICATION PURSUANT TO
18 U.S.C. SECTION 1350,
AS ADOPTED PURSUANT TO
SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report on Form 10-Q of Oxis International, Inc. (the “Company”), for the quarterly period ended June 30, 2013, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Tony Cataldo, Chief Executive Officer of the Company, pursuant to 18 U.S.C. § 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, do hereby certify, to my knowledge that:

(1)           The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934 15 U.S.C. 78m(a) or 780(d)); and

(2)           The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.



/s/ Tony Cataldo                                                                
Tony Cataldo
Chief Executive Officer, Chairman, and Director
Dated: December 12, 2014






A signed original of this written statement required by Section 906 has been provided to Oxis International, Inc. and will be retained by Oxis International, Inc. and furnished to the Securities and Exchange Commission or its staff upon request.