Condensed Consolidated Statements of Operations (Unaudited) - USD ($)	3 Months Ended	6 Months Ended
Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Operating expenses
Research and development	$ 2,611,948	$ 1,467,736	$ 4,063,184	$ 1,938,712
General and administrative	4,674,121	2,674,920	7,287,214	4,078,385
Total operating expenses	7,286,069	4,142,656	11,350,398	6,017,097
Operating loss	(7,286,069)	(4,142,656)	(11,350,398)	(6,017,097)
Other income	23,540	79	14,562	138
Loss before income taxes	(7,262,529)	(4,142,577)	(11,335,836)	(6,016,959)
Income taxes
Net loss	(7,262,529)	(4,142,577)	(11,335,836)	(6,016,959)
Deemed dividend attributable to preferred stock		(11,479,308)		(11,479,308)
Net loss applicable to common shareholders	$ (7,262,529)	$ (15,621,885)	$ (11,335,836)	$ (17,496,267)
Net loss per share of common stock, basic and diluted: (in dollars per share)	$ (0.80)	$ (5.08)	$ (1.44)	$ (6.11)
Weighted average shares outstanding - basic and diluted (in shares)	9,126,153	3,073,803	7,852,907	2,864,033

The amount of deemed dividend on preferred stock.

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The aggregate costs incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process whether intended for sale or the entity's use, during the reporting period charged to research and development projects, including the costs of developing computer software up to the point in time of achieving technological feasibility, and costs allocated in accounting for a business combination to in-process projects deemed to have no alternative future use.

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Average number of shares or units issued and outstanding that are used in calculating basic and diluted earnings per share (EPS).

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