Pfizer Pharmaceutical Company: The World's Largest Pharmaceutical Company

Clinical Trials

Clinical trials are one of the most important steps in the research process. Through the careful study of medicines, medical devices, and procedures in human volunteers, researchers are able to determine whether promising new treatments are safe and effective. In addition, clinical trials also provide valuable information to help researchers continually monitor the safety and effectiveness of treatments already available to patients.

As one of the world’s largest sponsors of clinical trials, Pfizer works to discover and develop innovative, safe, and effective ways to treat and prevent some of the world’s most challenging diseases. And as a world leader in pharmaceutical research, we are committed to the safety of patients who take part in our clinical trials and upholding the highest ethical standards in all of our research initiatives. We regularly review and update our policies on conducting ethical research in order to keep pace with the increasing complexity and sophistication of clinical trials.

Information About Pfizer-Sponsored Clinical Trials

Pfizer is committed to disclosing information about all clinical trials sponsored by our company. Visit the links below to learn more about our disclosure policy, ongoing trials, and results.

Review our policy on public disclosure and authorship.
Go to Registration, Disclosure & Authorship

Search for clinical trial registrations for Pfizer-sponsored trials.
Visit www.clinicaltrials.gov

Search for clinical study results of Pfizer-sponsored trials.
Visit www.clinicalstudyresults.org

Search browsers designed to provide easy access to information from various study registration and results portals.

World Health Organization Portal

International Federation of Pharmaceutical Manufacturers and Associations Portal

Center for Information and Study on Clinical Research Participation Portal

Fast Facts: The Rising Cost of Clinical Trials

  • The average cost of clinical trials has risen to nearly 60% of total development costs, compared to just over 30% in the 1980s.*
  • The cost of pediatric trials increased nearly eight fold from 2000 to 2006.*

    • *Reference: The Tufts Center for the Study of Drug Development. Visit the Center

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Multinational Clinical Trials

Inclusion of emerging markets in development has been ongoing for more than 10 years. This has reduced development times for new medicines, increased knowledge transfer and scientific collaboration, and improved access to new therapies. Learn more about how Pfizer ensures our trials are done ethically and to international standards.

Read about Pfizer’s commitment to conducting ethical research and review our policies that help to ensure the safety and privacy of patients.

Learn More About Clinical Trials

Learn about the four phases of clinical trials and the importance of each in ensuring the safety and effectiveness of medical treatments.

Access resources designed specifically for patients considering participation in a clinical trial.