Powered by Purpose: Celebrating Clinical Trials Day 2025

Pfizer has been in the business of breakthroughs for nearly two centuries, and while our success represents the shared work of thousands of our dedicated employees, none of the advancements for which we are known were made possible through our efforts alone. The modern prescription medicines and vaccines we have today were studied in hundreds, and often thousands, of people in clinical trials.

A clinical trial is a research study that seeks to understand how potential medicines, vaccines, and other medical interventions work, and also whether they are safe and effective. These studies depend on volunteers who are willing to participate in the research process. Breakthroughs are powered by purpose, and clinical trials are the foundation upon which new medicines and vaccines are developed. They require meticulous planning, careful execution, and a deep understanding of the needs of patients and their caregivers.

Join us this Clinical Trials Day, as we honor the incredible efforts of the scientists, doctors, nurses, site partners, study participants, and many others who help make this critical work possible.

Watch and share this video, expressing our gratitude for all those working to advance clinical research and bring new breakthrough medicines to those in need:

Learn more about Pfizer’s efforts to make clinical trials more accessible and responsive to patients’ needs – before, during, and after a study.

And visit PfizerClinicalTrials.com to find clinical trials that are currently recruiting, and PfizerClinicalTrials.com/PfizerConnect to sign up to be notified of potential Pfizer clinical trials and research opportunities.