Introduction to Clinical Trials
Vaccines are important tools in protecting against disease. Thanks to vaccines, millions of people are protected from life threatening diseases including polio, tetanus, diphtheria, whooping cough, measles, hepatitis B, meningitis, and influenza. Vaccines reduce health care costs by reducing infectious diseases and promoting health. Additional vaccine development is important for future disease prevention.

Healthy volunteers of all ages, races, and genders are needed to continue vaccine development.

Participation in a vaccine study is voluntary and confidential.

All study vaccines and tests are free of charge and volunteers receive compensation for time and travel.

Click here for current studies that need volunteers.

Volunteering in a Study Pre-Screening Phase
You establish interest by contacting us by e-mail ( or phone (314-977-6333). We ask you questions over the phone to determine if you may qualify for the study. If the initial phone screening indicates that you may be eligible for the study, then we'll send you a consent form. A consent form outlines the details of the study (i.e. risks, benefits, purpose, compensation, etc.).

After reading the consent form, you may call us back to clarify any questions and/or schedule a screening visit if you are interested.

Screening Phase
At the beginning of the screening visit you will sign a consent form. This is an informed consent, so every effort will be made to help you understand all the details of the study. If there is anything you do not understand about the study, please ask. After informed consent is obtained, then the screening visit will continue per that study's protocol.

Enrollment Phase
If the results from your screening visit indicate that you would qualify for the study, you will be scheduled for an enrollment visit and receive study vaccine. Please note that the screening and enrolling visits happen at the same time for some studies.

Monitoring Phase
You will be monitored after joining the study. We typically monitor your body's immune response through blood samples and have you keep a record of how you feel and any symptoms after receiving study vaccine. Monitoring may require additional visits and/or phone calls to the Center for Vaccine Development.

Please visit the Center for Vaccine Development website for more information on current open studies.