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REVENUE RECOGNITION AND COLLABORATIVE ARRANGEMENTS (Tables) | 12 Months Ended
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Dec. 31, 2020
REVENUE RECOGNITION AND COLLABORATIVE ARRANGEMENTS |
Schedule of net revenue from collaborative arrangements | Net revenue recognized under our GSK Agreements was as follows: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | Year Ended December 31,
(In thousands) |  | 2020 |  | 2019 |  | 2018
Royalties from a related party - RELVAR/BREO | ​ | $ | 221,536 | ​ | $ | 189,424 | ​ | $ | 220,162
Royalties from a related party - ANORO | ​ |  | 45,992 | ​ |  | 42,625 | ​ |  | 41,286
Royalties from a related party - TRELEGY | ​ | ​ | 73,089 | ​ | ​ | 42,790 | ​ | ​ | 13,379
Total royalties from a related party | ​ |  | 340,617 | ​ |  | 274,839 | ​ |  | 274,827
Less: amortization of capitalized fees paid to a related party | ​ |  | (13,823) | ​ |  | (13,823) | ​ |  | (13,823)
Royalty revenue | ​ |  | 326,794 | ​ |  | 261,016 | ​ |  | 261,004
Strategic alliance - MABA program | ​ | ​ | 10,000 | ​ | ​ | — | ​ | ​ | —
Total net revenue from GSK | ​ | $ | 336,794 | ​ | $ | 261,016 | ​ | $ | 261,004

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