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Accrued Expenses and Other Current Liabilities
12 Months Ended
Dec. 31, 2021
Payables and Accruals [Abstract]  
Accrued Expenses and Other Current Liabilities ACCRUED EXPENSES AND OTHER CURRENT LIABILITIES
Accrued expenses and other current liabilities consist of the following (in thousands):
December 31,
20212020
Accrued clinical expenses$2,522 $2,197 
Accrued contract manufacturing expenses2,485 1,840 
Derivative liability for exit fee698 1,376 
Accrued professional and consulting services597 243 
Accrued sales and marketing expenses256 593 
Accrued interest expense203 123 
Other605 285 
Total accrued expenses and other current liabilities$7,366 $6,657