Paid Clinical Trials in Fullerton, CA

As of July 2026, 93 paid clinical trials are recruiting in Fullerton, California. Compensation typically covers time, travel, and study visits, with stipends ranging from modest amounts for short outpatient studies to several thousand dollars for long or inpatient protocols.

Fullerton offers studies at sites including Providence Medical Foundation for conditions such as Advanced Solid Tumor, Carcinoma, Non-Small-Cell Lung, Breast Neoplasms, Esophageal Squamous Cell Carcinoma. Both patients with specific conditions and healthy volunteers can qualify. Most trials offer free study-related medical care alongside compensation.

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

Trials by specialty in Fullerton

Filter results
Filter results
Recruitment status
Phase
Sex
Age

0 clinical trials

·Clear filters·↓ Download CSV
No trials match these filters. Try broadening your search.

Top Research Study Locations in Fullerton

Researchers run research studies in Fullerton, CA at 25 active sites. The clinics below currently host the largest number of recruiting studies — each name is followed by the conditions they focus on most.

SiteSpecializes inActive trials
Providence Medical FoundationAdvanced Solid Tumor, Esophageal Squamous Cell Carcinoma, Carcinoma, Non-Small Cell Lung28
Providence St. Jude Medical CenterAdvanced Breast Cancer, Advanced Ovarian Cancer, Advanced Solid Tumor7
Neurology Center of North Orange CountyAD, Agitation, Alzheimer Disease5
Retina Consultants of Orange CountyDiabetic Macular Edema (DME), AMD, DME5
Fullerton Neuro and Headache CtrGeneralized Myasthenia Gravis, Secondary Progressive Multiple Sclerosis (SPMS)3
Marshall B. Ketchum UniversityAmblyopia, Dry Eye Disease (DED), Myopia3
Providence Saint Jude Medical CenterExtensive Stage Small-cell Lung Cancer, Metastatic Castration-resistant Prostate Cancer, Prostate Cancer3
Providence - St. Jude Medical CenterHypothyroidism, Multiple Myeloma, Non Small Cell Lung Carcinoma3
Fullerton Neurology and Headache CenterAlzheimer's Disease, Secondary Progressive Multiple Sclerosis2
Southern California College of Optometry at Marshall B. Ketchum UniversityIntermittent Exotropia, Myopia2
St. Jude Medical CenterAtrial Fibrillation, Central Line Associated Blood Stream Infections (CLABSI), Intracerebral Hemorrhage2
Providence Medical Foundation-OncologyBreast Neoplasms, Diffuse Large B-Cell Lymphoma2
Adverum ClinicalNeovascular Age-Related Macular Degeneration (nAMD), Wet AMD1
Alliance Surgery Center, IncLumbar Spinal Stenosis1
Clinical Research Providence Medical FoundationSmall Cell Lung Cancer1
Crosson Cancer Institute at Providence St. Jude Medical Center in FullertonMetastatic Pancreatic Adenocarcinoma, Metastatic Pancreatic Cancer, Pancreatic Cancer1
Davita Fullerton Dialysis CenterEnd Stage Kidney Disease1
Fullerton Neurological Center - NeurologyChronic Migraine, Episodic Migraine1
GSK Investigational SiteSystemic Lupus Erythematosus1
Laguna Surgery CenterLumbar Spinal Stenosis1
Local Institution - 0162Urothelial Cancer1
Local Institution - 0504Non-Small Cell Lung Cancer1
Local Institution - 0581Carcinoma, Non-Small-Cell Lung1
National Institute of Clinical Research, Inc.End Stage Kidney Disease1
Pa0019 119Axial Spondyloarthritis, Psoriatic Arthritis1

Active & Upcoming Studies in Fullerton (2026)

Recruiting trials in Fullerton grouped by therapeutic area, drawn from ClinicalTrials.gov. Each bucket shows the most recent example studies.

Eye & vision (7 active studies)

Common conditions studied in Fullerton

Leading research sponsors in Fullerton

  • Merck Sharp & Dohme LLC
  • Janssen Research & Development, LLC
  • AbbVie
  • Amgen
  • AstraZeneca

Frequently asked questions

How many paid clinical trials are currently recruiting in Fullerton?

There are approximately 93 recruiting clinical trials in Fullerton, California listed on ClinicalTrials.gov. The number changes weekly as new studies open and others close enrollment.

Do clinical trials in Fullerton pay participants?

Most recruiting trials in Fullerton compensate participants for their time, travel, and study visits. Compensation varies by sponsor, study phase, and visit requirements — the exact amount is disclosed by the study team during the informed consent process.

Who can participate in a clinical trial in Fullerton?

Eligibility depends on the specific study. Each trial defines its own inclusion criteria (age, diagnosis, medical history, prior treatments) and exclusion criteria. Both patients with specific conditions and healthy volunteers can qualify, depending on the study design.

What conditions are most commonly studied in Fullerton?

The most common conditions under active study in Fullerton include Advanced Solid Tumor (4), Carcinoma, Non-Small-Cell Lung (4), Breast Neoplasms (3), Esophageal Squamous Cell Carcinoma (3), among many others. Browse the list above to explore every recruiting trial.

Are there clinical trials for healthy volunteers in Fullerton?

Yes. Healthy-volunteer studies — often early-phase pharmacology or vaccine trials — recruit in Fullerton on an ongoing basis. Use the "Healthy volunteers only" filter above to view trials that accept participants without the study's target condition.

How do I enroll in a clinical trial in Fullerton?

Click any study title above to see the full study record, including eligibility criteria, visit schedule, and the study team's contact information. Reach out to the central contact or recruiting site directly — they will guide you through screening and informed consent.

Where can I take part in paid clinical trials in Fullerton?

Recruiting research sites in Fullerton include Providence Medical Foundation, Providence St. Jude Medical Center, Neurology Center of North Orange County, among others. Each site lists its open studies and contact information on the study record above — call or email the site coordinator to ask about screening for a specific protocol.

What kinds of studies are recruiting in Fullerton right now?

The largest active categories in Fullerton are Cancer & tumors (49), Eye & vision (7), Neurology & pain (5). Use the filters above to narrow by therapeutic area, phase, age, or healthy-volunteer eligibility.

Browse more clinical trials

Related healthcare resources in California

Trials by condition in Fullerton