Exhibit 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the incorporation by reference in the registration statement on Form S-8 (No. 333-126551) and the registration statements on Form S-3 (No. 333-117022, No. 333-127857, No. 333-113729 and No. 333-133824) of our reports dated March 14, 2008 (which express an unqualified opinion and include an explanatory paragraph related to the adoption of Financial Accounting Standards Board Staff Position on No. EITF 00-19-2, Accounting for Registration Payment Arrangements) with respect to our audits of the consolidated financial statements of ADVENTRX Pharmaceuticals, Inc. and Subsidiaries and the effectiveness of ADVENTRX Pharmaceuticals, Inc. and Subsidiaries’ internal control over financial reporting as of December 31, 2007, which reports appear in this Annual Report on Form 10-K for the year ended December 31, 2007.

/s/ J.H. Cohn LLP

San Diego, California
March 14, 2008