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Balance Sheets - USD ($)
Mar. 31, 2024
Dec. 31, 2023
Current assets:    
Cash and cash equivalents $ 31,281,460 $ 41,792,830
Prepaid expenses and other current assets 1,985,933 1,997,904
Total current assets 33,267,393 43,790,734
Prepaid research and development expenses 192,268 603,737
Operating lease right-of-use asset 598,257 767,828
Other assets 146,995 154,176
Total assets 34,204,913 45,316,475
Current liabilities:    
Accounts payable 755,534 868,115
Accrued expenses 3,907,840 5,225,557
Lease liabilities 630,827 741,558
Total current liabilities 5,294,201 6,835,230
Lease liabilities, net of current portion   66,844
Total liabilities 5,294,201 6,902,074
Stockholders' equity:    
Preferred stock; $0.001 par value; 5,000,000 shares authorized, no shares issued and outstanding at December 31, 2023 and December 31, 2022
Common stock; $0.001 par value; 100,000,000 shares authorized; 64,393,744 shares issued and outstanding at December 31, 2023; 54,377,798 shares issued and outstanding at December 31, 2022 64,451 64,394
Additional paid-in capital 496,068,140 494,835,219
Accumulated deficit (467,221,879) (456,485,212)
Total stockholders' equity 28,910,712 38,414,401
Total liabilities and stockholders' equity $ 34,204,913 $ 45,316,475