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ACCRUED EXPENSES
 9 Months Ended
Sep. 30, 2022
Payables and Accruals [Abstract]  
ACCRUED EXPENSES ACCRUED EXPENSES
The following table sets forth the composition of accrued expenses as of September 30, 2022 and December 31, 2021 (in thousands):
September 30, 2022December 31, 2021
Research and development$1,242 $1,841 
Payroll-related expenses2,043 2,967 
Restructuring charge related6,365 1,497 
Professional fees381 597 
Legal expenses, including preliminary litigation settlement 23,720 1,344 
Other49 9 
Total Accrued Expenses$33,800 $8,255