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OTHER ACCRUED LIABILITIES
12 Months Ended
Dec. 31, 2021
Payables and Accruals [Abstract]  
OTHER ACCRUED LIABILITIES

7. OTHER ACCRUED LIABILITIES

 

Other accrued liabilities at December 31, 2021 and 2020 include the following:

 

   2021   2020 
   December 31, 
   2021   2020 
Amounts due to contract research organizations and other contractual agreements  $1,401,356   $636,000 
Accrued payroll and related benefits   1,636,727    1,736,271 
Accrued interest   16,792     
Accrued professional fees   87,250    66,850 
Other   31,412    19,411 
Total  $3,173,537   $2,458,532