Resources
Where this tool's data actually comes from, the networks it pulls from, and other places worth checking directly — this tool doesn't try to be the only source.
How the data pipeline works
A scheduled job re-pulls each network's own site daily (see .github/workflows/daily-study-refresh.yml in the source repo), reading whatever fields that network actually publishes — pay, nights, BMI range, special populations. Nothing is invented for a field a network doesn't publish; it's flagged as unconfirmed instead. A study that disappears from a network's own listing (filled, closed, expired) isn't just deleted — it's marked closed and drops out of the ranked table, but stays around for a few months in case you already have it in your chase pipeline. On top of that, anyone can submit a correction with no account required — those build confidence automatically as independent people agree on the same value, and show as openly disputed (not silently overwritten) when they conflict. See About for the full ranking methodology.
The networks we pull from
Confirmed paid Phase-1 / healthy-volunteer networks currently tracked. Some have fully automated live scraping; others are confirmed-enrolling but phone-only or register-gated, in which case this tool shows an honest “call to apply” instead of a disguised link. Full detail (portals, phones, per-site notes) is on the network directory.
- ICONSalt Lake City UT, San Antonio TX, Lenexa KS
- PPD / Thermo FisherAustin TX, Las Vegas NV, San Antonio TX
- FortreaDallas TX, Daytona Beach FL, Madison WI
- CelerionLincoln NE, Tempe AZ
- AltasciencesOverland Park KS, Cypress / Los Angeles CA, Montreal QC
- Spaulding ClinicalWest Bend WI
- Nucleus NetworkMinneapolis MN
- Frontage Clinical ServicesSecaucus NJ
- BioPharma ServicesToronto ON
- Worldwide Clinical TrialsSan Antonio TX
- Clinical Pharmacology of Miami (CPMI)Miami FL
- QPSSouth Miami FL
- BiotrialNewark NJ
- JBR / Jean Brown Research (CenExel)Salt Lake City UT
- DM Clinical ResearchHouston / Dallas / San Antonio TX
- Innovaderm ResearchMontreal QC
- KGK ScienceLondon ON
Other places to check
Complementary resources — not competitors, and nothing from these is pulled automatically into this tool's ranking. Worth checking directly, especially for networks or details this tool doesn't have yet.
- Just Another Lab Rat (jalr.org)A long-running, community-run directory of Phase-1 clinics nationally, plus separate directories for university-run and patient (Phase II-IV) clinics. This tool's “discovered, not yet verified” network entries are found by diffing JALR's directory against our own confirmed list — real facts pulled from JALR's own clinic pages (alternate phone numbers, payout-timing notes) are also surfaced this way, always attributed, never merged into scraped data as if verified.
- JALR community forumWhere actual participants compare notes on specific studies and sites — the kind of first-hand detail no automated pull will ever fully capture.
- JALR FAQGeneral first-timer questions about how paid clinical trials work, unrelated to any specific listing here.
- Study ScavengerA patient/volunteer-facing trial-matching search by zip code, compensation, or health condition, run by the same team that maintains JALR's clinic listings.
See also: About · Disclaimer