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AMGNVery BearishCorporate Developmentsnews

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Amgen Faces Serious Safety Concerns Over Rare Disease Drug in Japan

May 15, 2026, 4:31 PM EDT1 sourcesAI-analyzed

Why it may matterVerify against the original reporting

Given the serious nature of the safety concerns and their implications on sales and regulatory approvals, similar past events have historically led to significant declines in equity value.

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What happened, with direct paths to the underlying reporting

Amgen is confronting major issues as Japanese reports indicate 20 deaths and 22 severe liver injuries following the use of its rare disease drug. This poses significant safety and regulatory ramifications that may impact Amgen's business operations and stock performance.

At least 20 individuals in Japan died after using Amgen's drug.
22 others experienced severe liver injuries potentially linked to the medication.
The report cites Kissei Pharmaceutical as a source of the information.
This raises significant safety concerns regarding the drug's approval and use.
Amgen may face increased scrutiny and regulatory challenges in Japan.

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