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Segment Information (Tables)
12 Months Ended
Dec. 31, 2021
Segment Information  
Schedule of total revenue by geographic region

Year Ended December 31, 

(In thousands)

    

2021

    

2020

    

2019

US

$

55,273

$

70,319

$

54,760

Europe

 

38

1,538

 

18,654

Total revenue

$

55,311

$

71,857

$

73,414

Schedule of total revenue from customers or collaboration partners who individually accounted for 10% or more of total revenue

Year Ended December 31, 

(% of total revenue)

    

2021

    

2020

    

2019

Viatris

79

%  

63

%  

44

%  

Janssen

21

%  

37

%  

42

%  

Pfizer

14

%