VENLO, Netherlands, July 26 /PRNewswire-FirstCall/ -- QIAGEN N.V. (Nasdaq: QGEN; Frankfurt, Prime Standard: QIA) today announced that it has successfully completed its exchange offer for all outstanding shares of common stock of Digene Corporation (Nasdaq: DIGE - News). The exchange offer expired at 11:59 p.m. Eastern Time on Friday, July 20, 2007. At the time the exchange offer closed, 23,270,298 shares, representing approximately 94.6%, of Digene’s outstanding common stock, had been tendered.