Quarterly report pursuant to Section 13 or 15(d)

Condensed Statements of Operations and Comprehensive Loss (unaudited)

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Condensed Statements of Operations and Comprehensive Loss (unaudited) (USD $)
In Thousands, except Per Share data, unless otherwise specified
 3 Months Ended 6 Months Ended
Jun. 30, 2012
Jun. 30, 2011
Jun. 30, 2012
Jun. 30, 2011
Revenues:        
Royalty revenue $ 1,360 $ 602 $ 2,588 $ 1,318
Grant revenue 0 93 42 325
Total revenue 1,360 695 2,630 1,643
Operating expenses:        
Research and development 1,973 3,947 5,042 7,685
General and administrative 1,126 948 2,859 1,741
Total operating expenses 3,099 4,895 7,901 9,426
Loss from operations (1,739) (4,200) (5,271) (7,783)
Other income (expense):        
Interest expense, net (1,897) (1,113) (3,460) (2,044)
Other expense, net (43) (46) (95) (44)
Non-cash gain (loss) on changes in the fair value of warrants 1,955 (1,630) 1,939 (1,630)
Other income (expense), net 15 (2,789) (1,616) (3,718)
Net loss and comprehensive loss $ (1,724) $ (6,989) $ (6,887) $ (11,501)
Basic and diluted net loss per common share $ (0.03) $ (0.12) $ (0.11) $ (0.19)
Weighted average shares used in computing basic and diluted net loss per common share 64,984 59,276 62,185 59,255