7,097 clinical trials are recruiting across 9 Illinois metro areas. Pick your metro to see the studies enrolling within 30 miles, plus the area's top-rated research centers.
Ranked by recruiting studies
Illinois's most active research hub is Chicago, with 2,449 studies currently enrolling within 30 miles, followed by Naperville (2,362). Every study listed on these pages is registered on ClinicalTrials.gov, the official NIH registry, and overseen by an Institutional Review Board — and each metro page shows the phase, sponsor, recruiting site and distance for every listing.
Compensation is set by each study's sponsor. Across the industry, completed studies typically pay $75 to $4,500, with healthy-volunteer Phase 1 studies at dedicated research centers commanding the highest amounts. Enrollment is always free, participation is voluntary, and every procedure and payment is detailed in the informed consent document before you commit.
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