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Statements of Operations and Comprehensive Loss - USD ($)	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Costs and expenses:
Research and development expense	$ 5,878,508	$ 5,518,722
General and administrative expense	2,092,300	2,056,353
Total costs and expenses	7,970,808	7,575,075
Loss from operations	(7,970,808)	(7,575,075)
Other income	39,495	20,097
Net loss and comprehensive loss	$ (7,931,313)	$ (7,554,978)
Basic and diluted net loss per common share (in dollars per share)	$ (0.34)	$ (0.40)
Basic and diluted weighted average number of common shares (in shares)	23,480,432	19,071,838

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The amount of net income or loss for the period per each share in instances when basic and diluted earnings per share are the same amount and reported as a single line item on the face of the financial statements. Basic earnings per share is the amount of net income or loss for the period per each share of common stock or unit outstanding during the reporting period. Diluted earnings per share includes the amount of net income or loss for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

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