Paid clinical trials and research studies near you
Hipa.ai is the discovery engine for recruiting clinical trials in the United States. Browse 27,139 active studies across all 50 states, search by condition and city, and apply directly to sponsoring research sites.
For sponsors & recruiters →Paid clinical trials by state
Browse recruiting research studies in every U.S. state and the District of Columbia. Each state page lists active trials with condition, city, and sponsor filters.
Clinical trials in major U.S. cities
Shortcut into the metros with the most recruiting studies.
Latest state clinical trials research
Monthly analysis of recruiting studies, new postings, and closing-soon trials for every U.S. state.
How Hipa.ai helps you find a clinical trial
Search by state or city
Our directory is built from live ClinicalTrials.gov / AACT data and refreshed weekly, so every listing reflects current recruiting status.
Filter by condition & eligibility
Every listing page supports filtering by condition, age, healthy-volunteer eligibility, and sponsor so you can focus on trials that match your situation.
Apply directly to the study site
Hipa.ai links out to the sponsoring research site's contact details on ClinicalTrials.gov. The data is never gated — you own the conversation from first contact.
Weekly behavioral health workforce news
We also publish weekly BCBA and RBT hiring reports from the CMS NPI registry.
Frequently asked questions
What is a paid clinical trial?
A paid clinical trial is a research study that compensates volunteers for their time, travel, and participation. Compensation varies by study, length, and the procedures involved. Most trials on Hipa.ai recruit both patients with a specific condition and, in some cases, healthy volunteers.
How do I find clinical trials near me?
Use the state and city directories on Hipa.ai to browse recruiting clinical trials across the United States. Each listing page lets you filter by condition, age, eligibility, and sponsor, so you can find studies that match your situation in your city.
Are the listings on Hipa.ai free?
Yes. Hipa.ai is a free clinical trials discovery directory. We never charge volunteers to view listings, and we link directly to the sponsor or research site so you can apply without any intermediaries.
Where does Hipa.ai get its clinical trial data?
All trial data is sourced from ClinicalTrials.gov via the AACT database and refreshed weekly. We surface only studies with an active recruiting, not-yet-recruiting, or enrolling-by-invitation status so you see current opportunities.
How do I apply to a clinical trial?
Open any study page on Hipa.ai and follow the contact information provided by the sponsoring research site. You can reach out by phone or email and the research coordinator will walk you through screening and consent.
Do you work with sponsors, CROs, and research sites?
Yes. Sponsors, contract research organizations, and research sites can contact Hipa.ai to feature studies, improve discoverability, and reach qualified volunteers across our state and city directories.
For sponsors, CROs, and research sites
Feature your recruiting trials across Hipa.ai's state and city directories and reach qualified volunteers. Talk to us about sponsored placements and enrollment campaigns.
Contact us