Other companies, such as AstraZeneca PLC, Biogen Inc. and Eli Lilly & Co., keep pursuing Alzheimer’s treatment, but analysts consider the projects very risky.
The corrected sentence for clarity:
Other companies, such as AstraZeneca PLC, Biogen Inc. and Eli Lilly & Co., keep pursuing Alzheimer’s treatment, but analysts consider the projects doomed to fail.
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