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Otamixaban ( INN ) is a direct factor Xa inhibitor , currently being developed by the French pharmaceutical company Sanofi-Aventis as a treatment for acute coronary syndrome .
 Sanofi-Aventis
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Sanofi-Aventis