ImaRx Therapeutics Satisfies Abbott Note Obligation Associated With the Acquisition of...( TUCSON Ariz. April 23 /- ImaRx Th...)

TUCSON, Ariz., April 23 /PRNewswire-FirstCall/ -- ImaRx Therapeutics, Inc. (Nasdaq: IMRX) today announced that it has entered into an agreement with Abbott Laboratories pursuant to which it has satisfied its obligations under its $15 million non-recourse promissory note with Abbott issued in connection with its acquisition of urokinase. As a result, full title to the urokinase assets, including the remaining inventory of finished product, all regulatory and clinical documentation, validated cell lines, and intellectual property rights, now resides unencumbered with ImaRx.

Urokinase is a thrombolytic drug, formerly marketed under the brand name Abbokinase(R) and recently re-branded as Kinlytic(TM). Urokinase is FDA approved and marketed for the treatment of acute massive pulmonary embolism, or blood clots in the lungs.

As of March 31, 2008, the remaining balance due under the note net of funds that were held in escrow totaled approximately $10.8 million. Pursuant to the terms of the agreement, all of ImaRx's obligations under the $15 million non-recourse promissory note were fully satisfied in exchange for the payment of $5,177,609 in cash to Abbott and the satisfaction of certain payment obligations relating to the storage of certain cell banks and recombinant samples at a contract research organization.

Bradford A. Zakes, President and CEO of ImaRx Therapeutics, stated, "We are pleased to have reached agreement with Abbott Laboratories on the satisfaction of this debt obligation. This now ensures that we have complete ownership of the asset, which will enable us to continue to commercialize this product and to provide patients and their doctors access to this important therapeutic."

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