You can also visit our Recruiting Challenge Studies page to view a non-exhaustive selection of studies that are currently open to enrollment. If you choose to enter a screening process for any of these studies, let us know by emailing!

Learn about important medical studies in your area

In addition to human challenge studies, we also track phase I vaccine safety and efficacy studies, which involve administration of early-stage experimental vaccines, but don’t generally involve infection with anything. Signing up with us just indicates your interest, and doesn’t mean you have to commit to joining any study. 

1Day Sooner doesn’t share your information with any study; we only pass along information about studies to you. 1Day Sooner does not run medical studies. We are an advocacy group that supports them, and more importantly, supports the volunteers in them.


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