Pfizer (PFE) BioNTech (BNTX) will stop US COVID-19 vaccine study in healthy adults ages 50 to 64 due to slow enrollment

The decision for Pfizer and BioNTech to halt their COVID-19 vaccine study in the specified age group reflects challenges in enrollment, which may signal concerns over vaccine uptake or market saturation.

Newsquawk StaffPublished 1 Apr 2026, 15:54 UTCOn the live feed at 15:34 UTC — 3 more headlines followed before this page went public

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Pfizer (PFE) BioNTech (BNTX) will stop US COVID-19 vaccine study in healthy adults ages 50 to 64 due to slow enrollment

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US military officials are planning for two potential ground assaults in Iran: one on Kharg Island, the hub of the country’s energy industry, and the other to seize enriched uranium, Atlantic reports, citing source

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Context

This development could impact investor sentiment regarding their vaccine-related revenue projections, and may also affect broader market confidence in vaccine advancements and public health strategies.

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