As of August 2026, 96 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: .
Posted to ClinicalTrials.gov within the last 60 days — these studies are just starting to recruit.
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.
| Site | Specializes in | Active trials |
|---|---|---|
| Providence Medical Foundation | Advanced Solid Tumor, Esophageal Squamous Cell Carcinoma, Carcinoma, Non-Small Cell Lung | 28 |
| Providence St. Jude Medical Center | Advanced Breast Cancer, Advanced Ovarian Cancer, Advanced Solid Tumor | 7 |
| Retina Consultants of Orange County | Diabetic Macular Edema (DME), AMD, DME | 6 |
| Neurology Center of North Orange County | AD, Agitation, Alzheimer Disease | 5 |
| Fullerton Neuro and Headache Ctr | Generalized Myasthenia Gravis, Secondary Progressive Multiple Sclerosis (SPMS) | 3 |
| Marshall B. Ketchum University | Amblyopia, Dry Eye Disease (DED), Myopia | 3 |
| Providence Saint Jude Medical Center | Extensive Stage Small-cell Lung Cancer, Metastatic Castration-resistant Prostate Cancer, Prostate Cancer | 3 |
| St. Jude Medical Center | Advanced Non-Small-Cell Lung Cancer, Atrial Fibrillation, Central Line Associated Blood Stream Infections (CLABSI) | 3 |
| Providence - St. Jude Medical Center | Hypothyroidism, Multiple Myeloma, Non Small Cell Lung Carcinoma | 3 |
| Fullerton Neurology and Headache Center | Alzheimer's Disease, Secondary Progressive Multiple Sclerosis | 2 |
| Southern California College of Optometry at Marshall B. Ketchum University | Intermittent Exotropia, Myopia | 2 |
| Providence Medical Foundation-Oncology | Breast Neoplasms, Diffuse Large B-Cell Lymphoma | 2 |
| Adverum Clinical | Neovascular Age-Related Macular Degeneration (nAMD), Wet AMD | 1 |
| Adverum | Neovascular Age-Related Macular Degeneration (nAMD) Wet AMD | 1 |
| Alliance Surgery Center, Inc | Lumbar Spinal Stenosis | 1 |
| Clinical Research Providence Medical Foundation | Small Cell Lung Cancer | 1 |
| Crosson Cancer Institute at Providence St. Jude Medical Center in Fullerton | Metastatic Pancreatic Adenocarcinoma, Metastatic Pancreatic Cancer, Pancreatic Cancer | 1 |
| Davita Fullerton Dialysis Center | End Stage Kidney Disease | 1 |
| Fullerton Neurological Center - Neurology | Chronic Migraine, Episodic Migraine | 1 |
| GSK Investigational Site | Systemic Lupus Erythematosus | 1 |
| Investigative | Solid Tumors | 1 |
| Laguna Surgery Center | Lumbar Spinal Stenosis | 1 |
| Local Institution - 0162 | Urothelial Cancer | 1 |
| Local Institution - 0504 | Non-Small Cell Lung Cancer | 1 |
| Local Institution - 0581 | Carcinoma, Non-Small-Cell Lung | 1 |
Recruiting trials in Fullerton grouped by therapeutic area, drawn from ClinicalTrials.gov. Each bucket shows the most recent example studies.
There are approximately 96 recruiting clinical trials in Fullerton, California listed on ClinicalTrials.gov. The number changes weekly as new studies open and others close enrollment.
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.
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.
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.
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.
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.
Recruiting research sites in Fullerton include Providence Medical Foundation, Providence St. Jude Medical Center, Retina Consultants of 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.
The largest active categories in Fullerton are Cancer & tumors (49), Eye & vision (9), Neurology & pain (5). Use the filters above to narrow by therapeutic area, phase, age, or healthy-volunteer eligibility.