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Prepaid Expenses and Other Current Assets - Schedule of Prepaid Expenses and Other Current Assets (Details) - USD ($)
$ in Thousands
Sep. 30, 2022
Dec. 31, 2021
Prepaid Expense and Other Assets, Current [Abstract]    
Clinical trial expenses $ 1,630 $ 1,630
Insurance premiums 158 890
Professional services 210 15
Other 37 208
Total prepaid expenses and other current assets $ 2,035 $ 2,743