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Regeneron Stock Sinks as Key Melanoma Drug Trial Fails to Beat Merck’s Keytruda
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Regeneron Stock Sinks as Key Melanoma Drug Trial Fails to Beat Merck’s Keytruda

Yahoo Finance · May 18, 2026, 11:42 AM · Also reported by 1 other source

Regeneron Stock Sinks as Key Melanoma Drug Trial Fails to Beat Merck’s Keytruda

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