Explore information to learn, share, and empowerWhat’s a clinical trial? Discover the process that brings new medicines and vaccines to the world. Learn more Representation matters Participation in clinical trials by people of all backgrounds helps all people. Learn more In the community Looking for clinical trial education or a health fair? Find in-person or virtual events near you. Find an event Hear from trial volunteers Over 50,000 people are participating in our clinical trials. Listen to their stories. Watch Considering a research study for you or a loved one?Learn more about studies and use our find a trial search tool.Ulcerative Colitis clinical trialsPfizer has clinical trials for people with ulcerative colitis. Learn more Breast Cancer clinical trialsPfizer has several study medicines in development for people with advanced or metastatic breast cancer. Learn more Refine your searchFind a Pfizer clinical trialsearch To get started, enter the condition, keyword, or NCT number you want to search for. You can refine your search by selecting ‘Show filters’. Advanced filters Refine your search further by applying these filters. EmplacementlocationÉtatRecrutementNot yet recruitingSexeFemmeHommeÂge0 - 17 years18 +Advanced filters Find trialscurrent_languageFind trials