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PARIS and TARRYTOWN, N.Y., June 6, 2011 /PRNewswire/ -- Sanofi (EURONEXT: SAN and NYSE: SNY) and Regeneron Pharmaceuticals, Inc. (NASDAQ: REGN) today announced that data showing that the investigational agent ZALTRAP™ (aflibercept), also known as VEGF Trap, significantly improved survival in previously treated metastatic colorectal cancer patients will be presented at the ESMO World Congress on Gastrointestinal Cancer on June 25, 2011.  The abstract (#0-0024) was published in the June 2011 supplement to Annals of Oncology.  

Patients with metastatic colorectal cancer (mCRC) previously treated with oxaliplatin were randomized to receive ZALTRAP or placebo in combination with the FOLFIRI regimen (irinotecan-5-fluorouracil-leucovorin).  The addition of ZALTRAP to the FOLFIRI regimen significantly improved both overall survival (HR=0.817; p=0.0032) and progression-free survival (HR=0.758; p=0.00007).  A similar effect was seen with ZALTRAP therapy whether or not patients had received prior bevacizumab therapy.

Grade 3 or 4 adverse events (AEs) that occurred with a more than 2 percent greater incidence in the ZALTRAP arm than in the placebo arm included diarrhea, asthenia/fatigue, stomatitis/ulceration, infections, hypertension, GI/abdominal pains, neutropenia, neutropenic complications and proteinuria.  Deaths on study treatment due to AEs occurred in 2.4 percent of patients in the ZALTRAP arm and in 1.0 percent of patients in the placebo arm.

"We are excited by these results and are committed to bringing this novel therapy to patients as soon as possible," said Debasish Roychowdhury, M.D., Senior Vice President and Head, Sanofi Oncology.   "We plan to submit regulatory applications for marketing approval to the U.S. Food and D

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