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ACCRUED EXPENSES
 6 Months Ended
Jun. 30, 2022
Payables and Accruals [Abstract]  
ACCRUED EXPENSES ACCRUED EXPENSES
The following table sets forth the composition of accrued expenses as of June 30, 2022 and December 31, 2021 (in thousands):
June 30, 2022December 31, 2021
Research and development$1,847 $1,841 
Payroll-related expenses3,099 2,967 
Restructuring charge related394 1,497 
Professional fees507 597 
Legal expenses, including preliminary litigation settlement 22,477 1,344 
Other1,527 9 
Total Accrued Expenses$29,851 $8,255