Condensed Consolidated Balance Sheets (Unaudited) - USD ($)
Mar. 31, 2021
Dec. 31, 2020
Current assets:    
Cash and cash equivalents $ 38,496,108 $ 37,851,388
Restricted deposit 75,000 75,000
Prepaid expenses and other current assets 1,412,862 1,000,587
Total current assets 39,983,970 38,926,975
Property and equipment, net 15,093 11,191
Right-of-use asset 203,269 214,767
Other assets 5,580 5,580
Total assets 40,207,912 39,158,513
Current liabilities:    
Accounts payable 1,370,679 1,487,948
Accrued expenses 4,566,320 5,290,181
Convertible note payable, net 0 14,216
Derivative liability 0 7,000
Accrued interest 0 488
Lease liability, current portion 50,102 48,629
Total current liabilities 5,987,101 6,848,462
Lease liability, net of current portion 154,846 167,938
Total liabilities 6,141,947 7,016,400
Commitments and contingencies (Note 8)
Stockholders’ equity:    
Preferred stock $0.0001 par value per share, 10,000,000 shares authorized; 0 shares issued and outstanding as of March 31, 2021 (unaudited) and December 31, 2020 0 0
Common stock $0.0001 par value per share, 350,000,000 shares authorized; 216,324,896 and 204,629,064 shares issued and outstanding as of March 31, 2021 (unaudited) and December 31, 2020, respectively 21,632 20,463
Additional paid-in capital 171,536,679 164,182,917
Accumulated deficit (137,492,346) (132,061,267)
Total stockholders’ equity 34,065,965 32,142,113
Total liabilities and stockholders’ equity $ 40,207,912 $ 39,158,513