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v3.20.4

Statements of Operations - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019
Total revenues | $ 365,993 | $ 244,632
Costs and expenses: |  |
Research and development | 11,235,396 | 11,162,236
Selling, general and administrative | 8,216,471 | 5,760,890
Total operating expenses | 19,451,867 | 16,923,126
Loss from operations | (19,085,874) | (16,678,494)
Interest income | 89,809 | 234,169
Interest expense | (1,519) | 0
Other gain (loss), net | (28,244) | 1,978
Gain (loss) from changes in fair value of derivative financial instruments—warrants | (280,844) | 28,188
Net loss | (19,306,672) | (16,414,159)
Preferred stock dividend payable on Series A Convertible Preferred Stock | (24,240) | (24,240)
Net loss attributable to common stockholders | $ (22,597,396) | $ (16,706,668)
Net loss per common share - basic and diluted (in dollars per share) | $ (1.08) | $ (2.80)
Weighted-average shares outstanding - basic and diluted (in shares) | 20,874,665 | 5,973,906
Royalties |  |
Royalties | $ 365,993 | $ 243,137
Services |  |
Services | 0 | 1,495
Series C Convertible Preferred Stock |  |
Costs and expenses: |  |
Deemed dividend recognized on beneficial conversion features of Convertible Preferred Stock issuance | 0 | (268,269)
Series D Convertible Preferred Stock |  |
Costs and expenses: |  |
Deemed dividend recognized on beneficial conversion features of Convertible Preferred Stock issuance | (601,767) | 0
Series E Convertible Preferred Stock |  |
Costs and expenses: |  |
Deemed dividend recognized on beneficial conversion features of Convertible Preferred Stock issuance | $ (2,664,717) | $ 0

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