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Balance Sheet Details
 12 Months Ended
Dec. 31, 2024
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,
20242023
Prepaid clinical and related costs$1,871 $2,314 
VAT receivable647 703 
Australian research and development tax incentive37 670 
Research grant— 1,104 
Other1,109 1,069 
Total$3,664 $5,860 
Accounts Payable
Accounts Payable consist of (in thousands):
December 31,
20242023
Clinical and related costs$7,561 $4,726 
Legal and audit costs31 160 
Other254 213 
Total$7,846 $5,099 
Accrued Expenses
Accrued Expenses consist of (in thousands):
 December 31,
 20242023
Accrued clinical and related costs$12,456 $16,863 
Accrued legal and audit costs72 216 
Accrued compensation354 1,460 
Accrued other31 125 
Total$12,913 $18,664 
Other Current Liabilities
Other Current Liabilities consist of (in thousands):
December 31,
20242023
Lease liabilities$740 $695 
Other676 271 
Total$1,416 $966