Verified trials only
We only list trials approved by the MFDS and reviewed by an IRB, and transparently provide the information you need before joining.
Recruiting participants for clinical & bioequivalence trialsFind the clinical trial
Find the clinical trial
that fits you — safely and transparently
See ongoing clinical and bioequivalence trials at a glance, review the eligibility criteria, and apply with ease.
How it works
Joining takes just four steps
From finding a listing to joining the trial, here's what happens at each step.
Review the listing
Find a listing that fits in the ongoing trials list and check the eligibility criteria.
Apply
Apply from the trial detail page and answer basic information and a pre-screening questionnaire.
Screening
Visit the trial site on the assigned date for a health examination, where final eligibility is decided.
Participate
Take part in the trial according to the schedule. The entire process is managed by medical staff.
Why CLEO
So participants can take part with peace of mind
We deliver the information you need to decide on joining a trial — clearly and transparently.
Tailored search
Filter by age, region, condition, and trial type to quickly find a trial that fits you.
Easy to apply
No complicated steps — fill out a pre-screening online and apply, and the trial site will get in touch.
Check out trials you can join right now
Find a clinical trial that fits, complete a short pre-screening, and your application is done.
