 Shares of Celsion Corp. shot up 85.1 toward a six-month high in very active premarket trading Thursday, putting the on track to more than double in two days, after the cancer drug development company disclosed that it terminated the share purchase agreement with Lincoln Park Capital LPC. Trading volume swelled to 18.9 million shares, enough to make the stock the second-most active ahead of the open, and well above the full-day average of about 4.6 million shares. 