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Balance Sheet Details
 12 Months Ended
Dec. 31, 2022
Organization, Consolidation and Presentation of Financial Statements [Abstract]  
Balance Sheet Details Balance Sheet Details
Prepaid Expenses and Other Current Assets
Prepaid Expense and Other Current Assets consist of (in thousands):
December 31,
20222021
Prepaid clinical and related costs$5,608 $14,853 
VAT receivable296 279 
Australian research and development tax incentive2,361 1,871 
Other1,225 1,122 
Total$9,490 $18,125 
Accounts Payable
Accounts Payable consist of (in thousands):
December 31,
20222021
Clinical and related costs$3,749 $3,427 
Legal and audit costs288 72 
Other244 246 
Total$4,281 $3,745 
Accrued Expenses
Accrued Expenses consist of (in thousands):
 December 31,
 20222021
Accrued clinical and related costs$6,807 $6,214 
Accrued legal and audit costs169 96 
Accrued compensation890 674 
Accrued other120 87 
Total$7,986 $7,071 
Other Current Liabilities
Other Current Liabilities consist of (in thousands):
December 31,
20222021
Lease liabilities$571 $408 
Other239 177 
Total$810 $585