Disclaimer
The short version: this is not medical advice, and it is not financial advice. It's an information tool — it helps you find and compare paid clinical-trial studies faster than reading each network's site one at a time. That's the whole job.
What this tool actually does
It pulls publicly available study listings from clinical-research network sites, organizes the eligibility, pay, timing, and logistics fields those sites already publish, and ranks the results by net cash kept, cash velocity, and downtime — the math is transparent (see docs/SCORING.md in the source repo). It does not evaluate a study's medical protocol, does not assess your personal health risk, and does not decide anything on your behalf. You still call the site, talk to a real recruiter, and make your own call.
Not medical advice
Nothing on this site is a recommendation that you participate in any study, that a study is safe, or that you are medically eligible — eligibility criteria shown here (BMI ranges, age, special populations, etc.) are pulled from each network's own published listing or detail page, and are flagged as unconfirmed whenever a source doesn't publish them clearly. Confirm every medical detail directly with the study's own screening staff before you agree to anything.
Not financial advice
Pay figures are “up to” amounts as published by each network — actual payment depends on completing the full study protocol, and payout timing (when you actually receive the money) is frequently not published online at all; this tool flags those cases rather than guessing. Net-cash and cash-velocity numbers are estimates built from your own entered assumptions (travel cost, dependent-care cost, home base), not verified financial figures.
Not affiliated with any network or company listed
This tool is not affiliated with, sponsored by, or endorsed by ICON, PPD/Thermo Fisher, Fortrea, Celerion, Altasciences, Spaulding Clinical, Nucleus Network, Frontage, BioPharma Services, Worldwide Clinical Trials, JBR/CenExel, or any other network, company, or clinic listed here — see the network directory for the full list. Their names, sites, and study data appear here only because they publish it publicly; this tool has no business relationship with any of them. The same goes for the sites listed on Resources — including JALR and Study Scavenger, which are independent, unaffiliated projects run by other people.
The harm-liability gap
Clinical trial sponsors are generally not required to cover long-term injury the way workers' compensation or health insurance might — compensation for a study-related injury, if any, is typically limited to the trial's own stated injury policy. Ask about this specifically before enrolling; it's rarely advertised up front.
Data accuracy
Study data is pulled automatically on a daily schedule and supplemented by community-submitted corrections (shown with a confidence level — confirmed, disputed, or unverified — never silently trusted). Even so, networks change their listings, run out of open slots, or update requirements faster than any automated or crowd-sourced system can catch. Treat every listing here as a lead to verify by phone or by visiting the network's own site — not a guarantee of anything.
Other places to look
This tool doesn't try to be the only resource — it's worth cross-referencing against Just Another Lab Rat (jalr.org), a long-running community-run clinic directory, its community forum where actual participants compare notes, and Study Scavenger. See the network directory for more.