Cardiff Oncology (CRDF) 10-Q 2016 Q2 Quarterly report

Exhibit 32.1

CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER AND PRINCIPAL FINANCIAL OFFICER

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 of Trovagene, Inc. (the “Company”) on Form 10-Q for the three months ended June 30, 2016 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, William J. Welch, Chief Executive Officer of the Company, certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, that:

(1)The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

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

August 4, 2016	/s/ William J. Welch
	William J. Welch
	Chief Executive Officer (Principal Executive Officer and Principal Financial Officer)