Consolidated Balance Sheets - USD ($)	Dec. 31, 2018	Dec. 31, 2017
Current assets:
Cash and cash equivalents	$ 41,671,284	$ 15,644,355
Prepaid expenses and other current assets	1,075,021	881,887
Total current assets	42,746,305	16,526,242
Property and equipment, net	130,867	62,984
Other assets:
Goodwill	7,647,267	7,647,267
In-process research and development	118,600	118,600
Other assets	20,380	13,648
Total assets	50,663,419	24,368,741
Current liabilities:
Accounts payable	1,033,829	95,873
Accrued expenses	4,546,432	1,937,331
Total liabilities	5,580,261	2,033,204
Commitments and Contingencies (Note 7)
Stockholders’ equity:
Preferred stock, $0.0001 and no par value at December 31, 2018 and 2017, respectively; authorized 10,000,000 shares; none issued and outstanding	0	0
Common stock, $0.0001 and $0.01 par value at December 31, 2018 and 2017, respectively; authorized 150,000,000 shares; 10,087,363 and 7,497,433 shares issued and outstanding at December 31, 2018 and 2017, respectively	1,009	74,974
Additional paid-in capital	91,914,692	47,812,215
Accumulated deficit	(46,832,543)	(25,551,652)
Total stockholders’ equity	45,083,158	22,335,537
Total liabilities and stockholders’ equity	$ 50,663,419	$ 24,368,741