SOUTH SAN FRANCISCO, CA -- (MARKET WIRE) -- 06/08/2006 -- Novacea, Inc. (NASDAQ: NOVC) announced today that the underwriters of its initial public offering have exercised their over-allotment option to purchase an additional 657,500 shares of common stock. The exercise of the over-allotment option increases the number of shares sold in the initial public offering to 6,907,500 shares, resulting in aggregate gross proceeds to the Company of approximately $44.9 million and, after underwriting discounts, net proceeds of approximately $41.8 million.