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Prepaid expenses
9 Months Ended
Sep. 30, 2022
Prepaid expenses  
Prepaid Expenses

8. Prepaid expenses

As of September 30, 2022, prepaid expenses were $18,562, consisting of $17,090 of prepaid R&D clinical costs, $858 of prepaid insurance and $614 of other prepaid costs. As of December 31, 2021, prepaid expenses were $2,519, consisting of $1,481 of prepaid R&D clinical costs, $369 of prepaid insurance, and $669 of other prepaid costs.