ACCRUED EXPENSES

6 Months Ended

12 Months Ended

Jun. 30, 2022

Dec. 31, 2021

Payables and Accruals [Abstract]

ACCRUED EXPENSES

9. ACCRUED EXPENSES

The following table sets forth the composition of accrued expenses as of June 30, 2022 and December 31, 2021 (in thousands):

			December 31,
	June 30, 2022		2021
Research and development	$	1,847	$	1,841
Payroll-related expenses		3,099		2,967
Restructuring charge related		394		1,497
Professional fees		507		597
Legal expenses, including preliminary litigation settlement		22,477		1,344
Other		1,527		9
Total Accrued Expenses	$	29,851	$	8,255

9.  ACCRUED EXPENSES

The following table sets forth the composition of accrued expenses as of December 31, 2021 and 2020 (in thousands):

	December 31,
	2021		2020
Research and development	$	1,841	$	1,372
Payroll-related expenses		2,967		1,892
Restructuring charge related		1,497		—
Professional fees		1,941		684
Other		9		25
Total Accrued Expenses	$	8,255	$	3,973