Regeneron Pharmaceuticals About 
Regeneron Pharmaceuticals Regeneron is a biopharmaceutical company 
that discovers, develops, and intends to commercialize therapeutic medicines for 
the treatment of serious medical conditions. Regeneron has therapeutic candidates 
in clinical trials for the potential treatment of  
obesity, rheumatoid 
arthritis, and cancer. 
 The Company also has preclinical programs in asthma, 
allergies, and other diseases and disorders.      Regeneron has several investigational product 
candidates progressing through all stages of human clinical trials, for a diverse 
set of serious diseases, including obesity, rheumatoid 
arthritis, and cancer. 
 AXOKINE® IL-1 --for the potential treatment of obesity  
VEGF Trap -- Research has shown that a protein found in the bloodstream 
(vascular endothelial growth factor, or VEGF), is secreted by many tumors to stimulate 
new blood vessels to grow and support the tumor. When VEGF binds to a protein 
its protein receptor, which resides on the surface of blood vessel cells, it stimulates 
their growth. In preclinical studies, the VEGF Trap literally “traps” the VEGF 
being made by the tumor, stopping it from stimulating the VEGF receptor, and thus 
preventing the tumor from promoting blood vessel growth.  IL-4/13 Trap 
--Evidence from different 
laboratories suggests that  overproduction of two functionally related 
cytokines, Interleukin-4 (IL-4) and Interleukin-13 (IL-13),can initiate an immune 
response that can lead to allergy and asthma. The "IL-4/13 Trap" tightly 
binds both IL-4 and IL-13 and, in preclinical studies, blocks their actions.  IL-1 
Trap - - tightly binds IL-1 and potently blocks its effects. In preclinical 
studies, the IL-1 Trap decreased inflammation and blocked cartilage erosion 
in the joint.          More About Regeneron