Inventory, net

12 Months Ended

Dec. 31, 2021

Inventory Disclosure [Abstract]

Inventory, net

5. Inventory, net

Inventories consist of the following:

	December 31, 2021		December 31, 2020
Raw materials	$	927	$	—
Work-in-process		1,657		—
Total	$	2,584	$	—

As of December 31, 2021, inventory balances include inventory costs subsequent to regulatory approval of KORSUVA injection on August 23, 2021. For the year ended December 31, 2021, no COGS was recognized as all inventory sold during 2021 pertained to inventory costs incurred prior to regulatory approval on August 23, 2021, which

were expensed as incurred. There were no write-downs of commercial supply inventory during the year ended December 31, 2021.