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![a man holding a test tube](https://www.citeline.com/-/media/citeline/resources/images/generics-bulletin-article-img.jpg?la=en&h=528&w=1340&hash=C4CEF5CE804BBEA31FF0BAB4ECA4F572)
Humira ― for a long time the world’s top-selling drug, and still one of the biggest brands in the business – finally faced US biosimilar competition this year, with Amgen at the end of January launching the first of many adalimumab biosimilars approved by the US Food and Drug Administration. A multitude of other competitors are bringing further adalimumab biosimilars to the US market, as per the terms of their individual litigation settlements with originator AbbVie.