TherOx Cancels IPO

TherOx Inc., an Irvine, Calif.-based developer of devices for cardiac ischemia patients, has withdrawn registration for a $100 million IPO. It had planned to trade on the Nasdaq, with Citi and UBS serving as co-lead underwriters. The company has raised over $120 million in total VC funding since 1995, including a $30 million Series J round earlier this year. Backers include Kleiner Perkins Caufield & Byers (27.8% pre-IPO stake), Integral Capital Partners (14.5%), New Science Ventures (14.8%) and Aperture Venture Partners (10.5%).