Pfizer Responds to Success of Operation Warp Speed and Reaffirms Transparency of COVID Vaccine Data

Pfizer Responds to Success of Operation Warp Speed and Reaffirms Transparency of COVID Vaccine Data

NEW YORK, Wednesday, September 3, 2025 - Pfizer Inc. (NYSE: PFE) today reaffirmed its commitment to transparently and consistently disclosing its research findings regarding its COVID-19 vaccine and to maintaining the integrity of those ongoing studies for all those we serve. Dr. Albert Bourla, Chairman and CEO, made the following statement:

The success of Operation Warp Speed (OWS) and U.S. development of mRNA vaccines is a profound public health achievement. Under President Trump's leadership, American innovation led the world, helping prevent economic collapse and saving more than 14 million lives globally¹. Operation Warp Speed restored consumer confidence, saved over $1 trillion in health care costs due to reductions in serious illness and avoidance of hospitalizations, and rapidly scaled up domestic production. This American leadership also delivered a new platform that may drive significant innovation in cancer research. Such an accomplishment would typically be worthy of the Nobel Peace Prize, given its significant impact.

President Trump's call for transparency is welcomed, and we remain deeply committed to that principle. Transparency has always been a cornerstone of trust, and we are dedicated to continuing to provide clear, factual data to the public. To date, data on Pfizer's COVID-19 vaccine have appeared in over 600 peer-reviewed publications.

In addition to the U.S. FDA, detailed data has been submitted to regulators in 130 countries, and, after thorough review and analysis, all approved the vaccine. Many nations, including the United Kingdom, Denmark, Israel, and Turkey, have gone on to generate real-world evidence through their vaccination programs, further validating the vaccine's safety and effectiveness in everyday settings.

In response to President Trump's request, here is a link to Pfizer's website containing numerous published studies and updates on safety, immunogenicity, and efficacy data in an open and accessible manner. We will post additional information and studies by the end of the month. Also, in the coming days, we will share new data regarding our latest vaccine strain which the FDA approved after a meticulous review by experienced medical and clinical experts. We agree with President Trump about the role data and transparency play in helping to inform patients and providers about their decision to vaccinate.

For more than 175 years, Pfizer scientists have addressed public health challenges by bringing forward trusted vaccines and therapies across a range of diseases. Our COVID-19 work reflects that same legacy: moving at an unprecedented pace while remaining transparent every step of the way. We stand by the integrity of our data, remain committed to openly sharing information from our ongoing trials, and will continue to maintain the trust of patients, health authorities, and the public.

About Pfizer: Breakthroughs That Change Patients' LivesAt Pfizer, we apply science and our global resources to bring therapies to people that extend and significantly improve their lives. We strive to set the standard for quality, safety and value in the discovery, development and manufacture of health care products, including innovative medicines and vaccines. Every day, Pfizer colleagues work across developed and emerging markets to advance wellness, prevention, treatments and cures that challenge the most feared diseases of our time. Consistent with our responsibility as one of the world's premier innovative biopharmaceutical companies, we collaborate with health care providers, governments and local communities to support and expand access to reliable, affordable health care around the world. For 175 years, we have worked to make a difference for all who rely on us. We routinely post information that may be important to investors on our website at https://www.Pfizer.com. In addition, to learn more, please visit us on https://www.Pfizer.com and follow us on X at @Pfizer and @Pfizer News, LinkedIn, YouTube and like us on Facebook at Facebook.com/Pfizer.

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¹ Watson OJ, Barnsley G, Toor J, Hogan AB, Winskill P, Ghani AC. Global impact of the first year of COVID-19 vaccination: a mathematical modelling study. The Lancet Infectious Diseases. 2022;22(9):1293-1302. doi:10.1016/S1473-3099(22)00320-6.

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