Paid Clinical Trials in Fullerton, CA

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.

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: August 10, 2026.

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93 clinical trials

Botensilimab Plus Balstilimab and Fasting Mimicking Diet Plus Vitamin C for Patients With KRAS-Mutant Metastatic Colorectal Cancer

for Metastatic Colorectal Adenocarcinoma

Drug: Botensilimab

Sites in Fullerton & Los Angeles

Sponsor: University of Southern California

Sex: All·Age: 18+

Code: NCT06336902·Phase 1·Recruiting·Listed Mar 2024

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Trastuzumab Deruxtecan Alone or in Combination With Anastrozole for the Treatment of Early Stage HER2 Low, Hormone Receptor Positive Breast Cancer

for Early-stage Breast Cancer

Sites in Fullerton, Whittier +5 more locations

Sponsor: Jonsson Comprehensive Cancer Center

Sex: All·Age: 18+

Code: NCT04553770·Phase 2·Recruiting·Listed Sep 2020

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Beacon Sensors and Telerehabilitation to Assess and Improve Use of Devices (BeST-AID) for Low Vision

for Low Vision

Sites in Fullerton, Los Angeles +7 more locations

Sponsor: University of California, Los Angeles

Sex: All·Age: 18+

Code: NCT06107881·Recruiting·Listed Oct 2023

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High Dose Aflibercept in Diabetic Macular Edema in Patients With Previous Vitrectomy

for Diabetic Macular Edema (DME)

Drug: Aflibercept

1 location in Fullerton

Sponsor: Retina Consultants of Orange County

Sex: All·Age: 21+

Code: NCT06662994·Phase 4·Recruiting·Listed Oct 2024

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Machine Learning Prediction of Possible Central Line Associated Blood Stream Infections and Rate of Reduction

for Central Line Associated Blood Stream Infections (CLABSI)

Sites in Fullerton, Orange +17 more locations

Sponsor: Swedish Medical Center

Sex: All·Age: 18+

Code: NCT07108660·Recruiting·Listed Aug 2025

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Trial of Vision Therapy for Intermittent Exotropia

for Intermittent Exotropia

Sites in Fullerton, Stanford +4 more locations

Sponsor: Southern California College of Optometry at Marshall B. Ketchum University

Sex: All·Age: 8 - 16

Code: NCT04487249·Recruiting·Listed Jul 2020

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Sonesitatug Vedotin in Combination With Capecitabine With or Without Rilvegostomig in Participants With Advanced or Metastatic Gastric, Gastroesophageal Junction, or Esophageal Adenocarcinoma Expressing Claudin18.2

for Gastric Cancer

Drug: Sonesitatug vedotin

Sites in Fullerton, Orange +70 more locations

Sponsor: AstraZeneca

Sex: All·Age: 18+

Code: NCT07431281·Phase 3·Recruiting·Listed Feb 2026

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Study Evaluating Safety, Tolerability, PK/PD of Surovatamig in Adult RA or SLE Participants

for Rheumatoid Arthritis

Sites in Fullerton +3 more locations

Sponsor: AstraZeneca

Sex: All·Age: 18 - 65

Code: NCT07201558·Phase 1·Recruiting·Listed Oct 2025

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A Phase III Renal Outcomes and Cardiovascular Mortality Study to Investigate the Efficacy and Safety of Baxdrostat in Combination With Dapagliflozin in Participants With Chronic Kidney Disease and High Blood Pressure

for Chronic Kidney Disease and Hypertension

Drug: Dapagliflozin

Sites in Fullerton, Los Alamitos +115 more locations

Sponsor: AstraZeneca

Sex: All·Age: 18+

Code: NCT06742723·Phase 3·Recruiting·Listed Dec 2024

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Phase 3 Study of T-DXd and Rilvegostomig Versus SoC in Advanced HER2-expressing Biliary Tract Cancer

for Biliary Tract Cancer

Drug: Rilvegostomig

Sites in Fullerton, Los Angeles +29 more locations

Sponsor: AstraZeneca

Sex: All·Age: 18 - 99

Code: NCT06467357·Phase 3·Recruiting·Listed Jun 2024

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A Study Describing the Efficacy and Safety of Belimumab Administered in Adult Participants With Early Systemic Lupus Erythematosus (SLE)

for Systemic Lupus Erythematosus

Sites in Fullerton, Whittier +39 more locations

Sponsor: GlaxoSmithKline

Sex: All·Age: 18+

Code: NCT06411249·Phase 4·Recruiting·Listed May 2024

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