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Unaudited Condensed Consolidated Statements of Operations and Comprehensive Loss - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Operating expenses:
Research and development	$ 2,552	$ 3,028
General and administrative	2,165	2,006
Total operating expenses	4,717	5,034
Operating loss	(4,717)	(5,034)
Other income (expense):
Other income	59
Change in fair value of derivative financial instruments	2,525	(516)
Foreign exchange gain (loss)	968	(128)
Total other income (expense)	3,552	(644)
Net loss	(1,165)	(5,678)
Other comprehensive loss
Foreign currency translation adjustments	(953)	(4)
Comprehensive loss	$ (2,118)	$ (5,682)
Net loss per share
Basic	$ (0.06)	$ (0.32)
Diluted	$ (0.08)	$ (0.32)
Weighted average shares outstanding
Basic	20,334,929	17,573,966
Diluted	20,460,656	17,573,966

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