As Amgen's Aimovig Momentum Continues, Challenges To Current Blockbusters Loom Large

Q1 Earnings Preview: While investors will look for updates on Aimovig and Evenity launches and a recently revealed legal battle with partner Novartis, Amgen's current blockbusters also are in the hotseat.

Machinery cogwheels, industry concept
Many challenges could affect Amgen's finely tuned machine

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