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Accrued Expenses (Tables)
 9 Months Ended
Sep. 30, 2021
Payables and Accruals [Abstract]  
Schedule of accrued expenses
   September 30,   December 31, 
   2021   2020 
Consulting fees  $627,020   $1,718,559 
Professional fees   561,599    1,261,751 
Litigation accrual (1)   450,000    
-
 
Employee and director compensation   437,343    878,292 
Research and development fees   106,891    17,817 
Interest   22,538    184,576 
Other   
-
    45,321 
Travel expenses   
-
    4,600 
   $2,205,391   $4,110,916