Issue Date: May 18, 2009
Northfield Closes Blood Replacer Plant
Northfield Laboratories is closing its plant in Mount Prospect, Ill., and laying off its entire staff there, effectively ending its effort to develop a red blood cell substitute. Late last month, the company received a letter from FDA stating that the agency would not approve the product, a chemically modified hemoglobin called PolyHeme. Northfield is one of several firms trying to develop blood substitutes (C&EN, Feb. 23, page 52).
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