Paid Clinical Trials in California

California has 6,384 paid clinical trials enrolling now across cities including Los Angeles, San Francisco and San Diego. Search by condition, age, or phase to find compensated research studies accepting participants near you.

Research sites in California include Stanford Medicine, UCLA Health and UCSF, running studies across oncology, cardiology, neurology, and more. Both patients and healthy volunteers may qualify. Most studies offer compensation for time and travel.

Recruiting trial data synced daily from ClinicalTrials.gov. Last sync: .

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5,286 clinical trials

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Visible Abdominal Distension

for Irritable Bowel Syndrome
1 location in Los Angeles
Sponsor: Hospital Universitari Vall d'Hebron Research Institute
Sex: All·Age: 18 - 80·Accepts healthy volunteers
Code: NCT06369753·Recruiting·Listed Apr 2024

CRS Questionnaire Validation Project

for Chronic Rhinosinusitis (CRS) With and Without Nasal Polyps
Sites in Santa Monica +4 more locations
Sponsor: The European Forum for Research and Education in Allergy and Airway Diseases
Sex: All·Age: 18+
Code: NCT06970977·Recruiting·Listed May 2025