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Inventory (Tables)
9 Months Ended
Sep. 30, 2019
Inventory Disclosure [Abstract]  
Schedule of Inventory
Inventory, which consists of commercial supply of TIBSOVO® (ivosidenib), consists of the following (in thousands):
September 30,
2019
December 31,
2018
Raw materials$180  $—  
Work-in-process5,375  788  
Finished goods294  81  
Total inventory$5,849  $869