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FDA Approves Abraxane for Metastatic Breast Cancer

January 8, 2005 -- SCHAUMBURG, Ill., Jan. 8 /PRNewswire-FirstCall/ -- American Pharmaceutical Partners, Inc. (Nasdaq: APPX - News) and American Bioscience, Inc. (ABI) announced today that the U.S. Food and Drug Administration (FDA) has approved ABRAXANE(TM) for Injectable Suspension (paclitaxel protein-bound particles for injectable suspension) (albumin-bound) in metastatic breast cancer. ABRAXANE(TM) is indicated for the treatment of breast cancer after failure of combination chemotherapy for metastatic disease or relapse within 6 months of adjuvant chemotherapy. Prior therapy should have included an anthracycline unless clinically contraindicated.

The approval marks a new class of "protein-bound particle" drugs, now made possible by ABI's proprietary nanoparticle albumin-bound (nab(TM)) technology. ABRAXANE is the first in this new class of drugs.

ABRAXANE, consisting only of albumin-bound paclitaxel nanoparticles, is free of toxic solvents and demonstrated a superior response rate with an almost doubling of the reconciled target lesion response rate when compared with the solvent-based Taxol® in a prospectively randomized trial of 460 patients with metastatic breast cancer. Because it contains no toxic solvents, this next-generation taxane product enables the administration of 50% more chemotherapy with a well-tolerated safety profile, requires no premedication to prevent hypersensitivity reactions and can be given over 30 minutes using standard IV tubing.

Source: American Pharmaceutical Partners, Inc. and American Bioscience, Inc.

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