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ACCRUED EXPENSES (Tables)
3 Months Ended
Mar. 31, 2023
ACCRUED EXPENSES  
Schedule of accrued expenses

Accrued expenses consisted of the following (in thousands):

​

​

​

​

​

​

​

​

​

March 31, 

​

December 31, 

​

​

2023

​

2022

External research and development

    

$

26,910

    

$

25,494

Accrued compensation

 

​

4,740

​

 

1,251

Accrued professional services

 

​

1,270

​

 

975

Accrued consulting

 

​

487

​

 

967

Restructuring

​

​

2,798

​

​

—

Other

 

​

580

​

 

909

Total accrued expenses

​

$

36,785

​

$

29,596

​