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v3.20.1

Statements of Operations and Comprehensive Loss - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018
Operating costs and expenses: |  |  |
Research and development (a) | [1] | $ 6,126,972 | $ 12,259,940
Patent costs |  | 146,281 | 204,396
General and administrative |  | 4,570,932 | 5,425,033
Total operating costs and expenses |  | 10,844,185 | 17,889,369
Operating loss |  | (10,844,185) | (17,889,369)
Other income: |  |  |
Interest income |  | 123,052 | 126,835
Settlement of accounts payable (a) | [1] | 588,114 | 893,823
Total other income |  | 711,166 | 1,020,658
Net loss |  | (10,133,019) | (16,868,711)
Other comprehensive gain (loss): |  |  |
Unrealized gain (loss) on debt securities |  | 923 | (923)
Comprehensive loss |  | (10,132,096) | (16,869,634)
Net Loss |  | (10,133,019) | (16,868,711)
Deemed dividend of preferred stock |  |  | (2,537,844)
Net loss applicable to common stockholders |  | $ (10,133,019) | $ (19,406,555)
Net loss per common share - basic and diluted |  | $ (1.06) | $ (3.66)
Weighted average common shares outstanding - basic and diluted |  | 9,570,061 | 5,304,667
[1] | For comparative presentation purposes, settlement of accounts payable of $893,823 for the year ended December 31, 2018 was reclassified out of research and development and into settlement of accounts payable under other income.

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