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Collaborative Arrangements and Licensing Agreements (Tables) | 12 Months Ended
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Dec. 31, 2019
Biogen [Member] |
Collaborative Arrangements and Licensing Agreements [Abstract] |
Revenue from Collaborative Relationship | During the years ended December 31, 2019, 2018 and 2017, we earned the following revenue from our relationship with Biogen (in millions, except percentage amounts):
|  | Year Ended December 31, |
|  | 2019 |  |  | 2018 |  |  | 2017 |
SPINRAZA royalties (commercial revenue) |  | $ | 293.0 |  |  | $ | 237.9 |  |  | $ | 112.5 |
R&D revenue |  |  | 180.6 |  |  |  | 137.1 |  |  |  | 150.6 |
Total revenue from our relationship with Biogen |  | $ | 473.6 |  |  | $ | 375.0 |  |  | $ | 263.1 |
Percentage of total revenue |  |  | 42 | % |  |  | 63 | % |  |  | 51 | %
AstraZeneca [Member] |
Collaborative Arrangements and Licensing Agreements [Abstract] |
Revenue from Collaborative Relationship | During the years ended December 31, 2019, 2018 and 2017, we earned the following revenue from our relationship with AstraZeneca (in millions, except percentage amounts):
|  | Year Ended December 31, |
|  | 2019 |  |  | 2018 |  |  | 2017 |
R&D revenue |  | $ | 28.1 |  |  | $ | 120.7 |  |  | $ | 21.6 |
Percentage of total revenue |  |  | 3 | % |  |  | 20 | % |  |  | 4 | %
Bayer [Member] |
Collaborative Arrangements and Licensing Agreements [Abstract] |
Revenue from Collaborative Relationship | During the years ended December 31, 2019, 2018 and 2017, we earned the following revenue from our relationship with Bayer (in millions, except percentage amounts):
|  | Year Ended December 31, |
|  | 2019 |  |  | 2018 |  |  | 2017 |
R&D revenue |  | $ | 14.3 |  |  | $ | 5.0 |  |  | $ | 67.1 |
Percentage of total revenue |  |  | 1 | % |  |  | 1 | % |  |  | 13 | %
GSK [Member] |
Collaborative Arrangements and Licensing Agreements [Abstract] |
Revenue from Collaborative Relationship | During the years ended December 31, 2019, 2018 and 2017, we earned the following revenue from our relationship with GSK (in millions, except percentage amounts):
|  | Year Ended December 31, |
|  | 2019 |  |  | 2018 |  |  | 2017 |
R&D revenue |  | $ | 25.4 |  |  | $ | 1.6 |  |  | $ | 14.8 |
Percentage of total revenue |  |  | 2 | % |  |  | 0 | % |  |  | 3 | %
Janssen Biotech, Inc. [Member] |
Collaborative Arrangements and Licensing Agreements [Abstract] |
Revenue from Collaborative Relationship | During the years ended December 31, 2019, 2018 and 2017, we earned the following revenue from our relationship with Janssen (in millions, except percentage amounts):
|  | Year Ended December 31, |
|  | 2019 |  |  | 2018 |  |  | 2017 |
R&D revenue |  | $ | 0.1 |  |  | $ | 6.6 |  |  | $ | 36.0 |
Percentage of total revenue |  |  | 0 | % |  |  | 1 | % |  |  | 7 | %
Roche [Member] |
Collaborative Arrangements and Licensing Agreements [Abstract] |
Revenue from Collaborative Relationship | During the years ended December 31, 2019, 2018 and 2017, we earned the following revenue from our relationship with Roche (in millions, except percentage amounts):
|  | Year Ended December 31, |
|  | 2019 |  |  | 2018 |  |  | 2017 |
R&D revenue |  | $ | 57.0 |  |  | $ | 8.3 |  |  | $ | 55.7 |
Percentage of total revenue |  |  | 5 | % |  |  | 1 | % |  |  | 11 | %
Novartis [Member] |
Collaborative Arrangements and Licensing Agreements [Abstract] |
Revenue from Collaborative Relationship | During the years ended December 31, 2019 and 2018, Akcea earned the following revenue from its relationship with Novartis (in millions, except percentage amounts):
|  | Year Ended December 31, |
|  | 2019 |  |  | 2018 |  |  | 2017 |
R&D revenue |  | $ | 187.4 |  |  | $ | 50.6 |  |  | $ | 43.4 |
Percentage of total revenue |  |  | 17 | % |  |  | 8 | % |  |  | 8 | %
Pfizer [Member] |
Collaborative Arrangements and Licensing Agreements [Abstract] |
Revenue from Collaborative Relationship | During the year ended December 31, 2019, Akcea earned the following revenue from its relationship with Pfizer (in millions, except percentage amounts):
|  | Year Ended December 31, 2019 |
R&D revenue |  | $ | 248.7 |
Percentage of total revenue |  |  | 22 | %
PTC Therapeutics [Member] |
Collaborative Arrangements and Licensing Agreements [Abstract] |
Revenue from Collaborative Relationship | During the years ended December 31, 2019 and 2018, Akcea earned the following revenue from its relationship with PTC (in millions, except percentage amounts):
|  | Year Ended December 31, |
|  | 2019 |  |  | 2018 |
Licensing and other royalty revenue (commercial revenue) |  | $ | 10.2 |  |  | $ | 12.0 |
Percentage of total revenue |  |  | 1 | % |  |  | 2 | %

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