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Pfizer to Share COVID-19 Vaccine Safety and Effectiveness Data

Pfizer is committed to transparently sharing data from clinical trials and real-world studies of its COVID-19 vaccine to address hesitancy.

23 September 2026
Pfizer to Share COVID-19 Vaccine Safety and Effectiveness Data

US-based pharmaceutical company Pfizer is emphasizing its commitment to transparency regarding its COVID-19 vaccine. The company announced it will continuously publish data on the vaccine's safety and effectiveness from both clinical trials and real-world usage, in response to global vaccine hesitancy.

Pfizer, in collaboration with BioNTech, developed an mRNA-based COVID-19 vaccine. While billions worldwide have received the vaccine, some segments of the population remain hesitant. According to the company, decision-making is influenced by various factors, including social and political reasons, and a desire for more information about the vaccine's development and safety profile.

Pfizer has published its research findings in leading peer-reviewed scientific journals. Additionally, real-world effectiveness data, such as studies from Israel, have provided important information regarding the vaccine's safety and its protection against SARS-CoV-2 infection and severe disease. These data have reportedly shaped local decisions on regulatory approvals and vaccination schedules.

The company believes that clinical and real-world data are critical to understanding the vaccine's value in combating the disease. Pfizer stated that it will continue to share new research findings and analyses in the future.

Original source: pfizer.com