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: July 29, 2026.

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5,286 clinical trials

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A Phase I Trial of 61Cu-NODAGA-PSMA for Patients with Prostate Cancer

for Prostate Adenocarcinoma

1 location in Irvine

Sponsor: Hoag Memorial Hospital Presbyterian

Sex: Male·Age: 18+

Code: NCT06736054·Phase 1·Recruiting·Listed Dec 2024

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OPT-IN: Osteopathic Plagiocephaly Treatment for Infants and Neonates

for Plagiocephaly, Nonsynostotic

1 location in San Diego

Sponsor: Osteopathy's Promise to Children

Sex: All·Age: 1 Day - 4 Months

Code: NCT05848895·Recruiting·Listed May 2023

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Natural History Study of Individuals With Autism and Germline Heterozygous PTEN Mutations

for PTEN

Sites in Los Angeles, Stanford +3 more locations

Sponsor: Boston Children's Hospital

Sex: All·Age: 18 Months+·Accepts healthy volunteers

Code: NCT02461446·Recruiting·Listed Jun 2015

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Perioperative Mindfulness Proposal

for Breast Cancer

1 location in Newport Beach

Sponsor: Hoag Memorial Hospital Presbyterian

Sex: Female·Age: 18+

Code: NCT04049214·Recruiting·Listed Aug 2019

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Effect of Anti-inflammatory Diet in Osteoarthritis

for Osteoarthritis, Knee

1 location in San Diego

Sponsor: University of California, San Diego

Sex: All·Age: 18+

Code: NCT06080347·Recruiting·Listed Oct 2023

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Babies' Brain Responses to Strangers

for Infant Development

1 location in Santa Cruz

Sponsor: University of California Santa Cruz

Sex: All·Age: 7 Months - 12 Months·Accepts healthy volunteers

Code: NCT06550245·Recruiting·Listed Aug 2024

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Toddlers' Responses to Strangers

for Social Behavior

1 location in Santa Cruz

Sponsor: University of California Santa Cruz

Sex: All·Age: 13 Months - 24 Months

Code: NCT06550206·Recruiting·Listed Aug 2024

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CArdiac REhabilitation for Building Exertional heArt Rate for Chronotropic Incompetence in Long COVID-19

for Long COVID

1 location in San Francisco

Sponsor: University of California, San Francisco

Sex: All·Age: 18+

Code: NCT05530317·Recruiting·Listed Sep 2022

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Randomized Trial of Supplemental Synchronous and Asynchronous Telehealth to Improve Glycemic Control for Pediatric Patients With Type 1 Diabetes

for Diabetes Mellitus, Type 1

1 location in Sacramento

Sponsor: University of California, Davis

Sex: All·Age: 5 - 18

Code: NCT04428658·Recruiting·Listed Jun 2020

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Remimazolam for Cataract Surgery

for Cataract Surgery

1 location in Los Angeles

Sponsor: University of California, Los Angeles

Sex: All·Age: 65+

Code: NCT05980117·Phase 4·Recruiting·Listed Aug 2023

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PRescription Exercise for Older Men With Urinary Disease

for Lower Urinary Tract Symptoms

2 locations in San Francisco

Sponsor: University of California, San Francisco

Sex: Male·Age: 60+

Code: NCT06225479·Recruiting·Listed Jan 2024

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Forehead Temperature-Regulating Therapy for Insomnia in Adults With Tourette's Disorder

for Tourette's Disorder

1 location in Los Angeles

Sponsor: University of California, Los Angeles

Sex: All·Age: 18 - 50

Code: NCT05499741·Recruiting·Listed Aug 2022

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NAD+ Augmentation in Cardiac Surgery Associated Myocardial Injury Trial

for Ischemia Reperfusion Injury

1 location in San Francisco

Sponsor: Kaiser Permanente

Sex: All·Age: 18+

Code: NCT04750616·Phase 2·Recruiting·Listed Feb 2021

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Clinical and Genetic Analysis of ROP

for Retinopathy of Prematurity

Sites in Palo Alto +4 more locations

Sponsor: Oregon Health and Science University

Sex: All·Age: Up to 1·Accepts healthy volunteers

Code: NCT04420156·Recruiting·Listed Jun 2020

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At-Home Cardiac Rehabilitation for Adolescents at Risk for Heart Failure

for Cardiovascular Complication

1 location in Los Angeles

Sponsor: Children's Hospital Los Angeles

Sex: All·Age: 0 - 21

Code: NCT06826534·Recruiting·Listed Feb 2025

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Pramipexole to Enhance Social Connections

for Anxiety Disorders

Sites in San Diego +1 more location

Sponsor: University of California, San Diego

Sex: All·Age: 18 - 50

Code: NCT06269146·Phase 2·Recruiting·Listed Feb 2024

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ROCKIF Trial: Re-sensitization of Carboplatin-resistant Ovarian Cancer With Kinase Inhibition of FAK

for Ovarian Cancer

1 location in San Diego

Sponsor: Michael McHale

Sex: All·Age: 18+

Code: NCT03287271·Phase 1, Phase 2·Recruiting·Listed Sep 2017

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Capsule Endoscopy for Severe Hematochezia

for Hematochezia

2 locations in Los Angeles

Sponsor: CURE Digestive Diseases Research Center

Sex: All·Age: 18+·Accepts healthy volunteers

Code: NCT03616041·Recruiting·Listed Aug 2018

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Telehealth-Enabled Versus In-Person Parent-Mediated Behavioral Treatment for Challenging Behaviors in Children With ASD

for Autism Spectrum Disorder

1 location in Stanford

Sponsor: Stanford University

Sex: All·Age: 2 - 7

Code: NCT05268796·Phase 2, Phase 3·Recruiting·Listed Mar 2022

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Mental Health Crises in Youth With IDDs

for Intellectual Disability

1 location in San Diego

Sponsor: Rady Pediatric Genomics & Systems Medicine Institute

Sex: All·Age: 7 - 17

Code: NCT05471232·Recruiting·Listed Jul 2022

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Use of Levocarnitine to Reduce Asparaginase Hepatotoxicity in Patients With Acute Lymphoblastic Leukemia

for Acute Lymphoblastic Leukemia

2 locations in Orange

Sponsor: Children's Hospital of Orange County

Sex: All·Age: 5 - 29

Code: NCT05501899·EARLY_Phase 1·Recruiting·Listed Aug 2022

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Adaptive Rock Climbing

for Congenital Upper Limb Differences

1 location in Los Angeles

Sponsor: Children's Hospital Los Angeles

Sex: All·Age: 6 - 16

Code: NCT06507072·Recruiting·Listed Jul 2024

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Dental Block for Pain Relief in ED Dental Pain Patients

for Dental Pain

1 location in Fresno

Sponsor: University of California, San Francisco

Sex: All·Age: 18+

Code: NCT05351099·Recruiting·Listed Apr 2022

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Comparative Effectiveness of MRgFUS Versus CTgRFA for Osteoid Osteomas

for Osteoid Osteoma

Sites in San Francisco, Palo Alto +1 more location

Sponsor: Matthew Bucknor

Sex: All·Age: 8+·Accepts healthy volunteers

Code: NCT02923011·Phase 3·Recruiting·Listed Oct 2016

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Assessment of Methadone Dose Taken

for Methadone Toxicity

1 location in Lemon Grove

Sponsor: Cari Health Inc.

Sex: All·Age: 18 - 70

Code: NCT05981573·Recruiting·Listed Aug 2023

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Assessing Neurocognition After Cerebrovascular Intervention

for Carotid Artery Diseases

1 location in San Diego

Sponsor: University of California, San Diego

Sex: All·Age: 18+

Code: NCT03344276·Recruiting·Listed Nov 2017

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Prostate Assessment with Restriction Spectrum Imaging (RSI) MRI

for Prostate Cancer

1 location in La Jolla

Sponsor: University of California, San Diego

Sex: Male·Age: 18+

Code: NCT04992728·Recruiting·Listed Aug 2021

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Developing and Testing a Self-Compassion Tool Kit to Improve the Care of Individuals With Type 2 Diabetes

for Type 2 Diabetes

1 location in San Diego

Sponsor: University of California, San Diego

Sex: All·Age: 18+

Code: NCT06398093·Recruiting·Listed May 2024

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FOOD PRESCRIPTION APP

for Diet, Healthy

1 location in Pasadena

Sponsor: Kaiser Permanente

Sex: All·Age: 18+

Code: NCT05562180·Phase 2, Phase 3·Recruiting·Listed Sep 2022

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Using a Smart Inhaler to Support Asthma Management in Adolescents With Intellectual and Developmental Disabilities

for Asthma in Children

1 location in Los Angeles

Sponsor: Children's Hospital Los Angeles

Sex: All·Age: 10 - 17

Code: NCT06783101·Recruiting·Listed Jan 2025

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Bright Ideas - CIN Feasibility Study

for Acute Lymphoblastic Leukemia (ALL)

Sites in Los Angeles +2 more locations

Sponsor: The Hospital for Sick Children

Sex: All·Age: 4 - 18

Code: NCT04929899·Recruiting·Listed Jun 2021

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Report Cards and Feedback for PCCE

for Behavioral Economics

1 location in Los Angeles

Sponsor: University of California, Los Angeles

Sex: All·Age: 18+

Code: NCT06155292·Recruiting·Listed Dec 2023

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Using Augmented Reality to Promote Physical Activity in Children With Cerebral Palsy

for Cerebral Palsy

1 location in Los Angeles

Sponsor: Children's Hospital Los Angeles

Sex: All·Age: 5 - 18

Code: NCT06096272·Recruiting·Listed Oct 2023

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Latinos Understanding the Need for Adherence in Diabetes Using E-Health

for Type 2 Diabetes

1 location in Chula Vista

Sponsor: San Diego State University

Sex: All·Age: 18+

Code: NCT05570734·Recruiting·Listed Oct 2022

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UPURS Trial for Patient-centered Management of Symptomatic Obstructing Stones

for Ureteral Stone

1 location in San Francisco

Sponsor: University of California, San Francisco

Sex: All·Age: 18+·Accepts healthy volunteers

Code: NCT05715086·Recruiting·Listed Feb 2023

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Molecular Autopsy Study

for Sudden Unexplained Death

1 location in La Jolla

Sponsor: Scripps Translational Science Institute

Sex: All·Age: Up to 45

Code: NCT02168088·Recruiting·Listed Jun 2014

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Entire-body PET Scans for Multiple Sclerosis

for Multiple Sclerosis

1 location in Ladera Ranch

Sponsor: Brain Health Alliance

Sex: All·Age: 25 - 55·Accepts healthy volunteers

Code: NCT04390009·EARLY_Phase 1·Recruiting·Listed May 2020

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Longitudinal Study of Urea Cycle Disorders

for Brain Diseases, Metabolic, Inborn

Sites in Los Angeles, Stanford +10 more locations

Sponsor: Andrea Gropman

Sex: All·Age: All ages

Code: NCT00237315·Recruiting·Listed Oct 2005

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Achieving Steady Work Among Adults With Autism Through Specialized Employment Program

for Autism Spectrum Disorder

1 location in Palo Alto

Sponsor: Lawrence Fung

Sex: All·Age: 18 - 55·Accepts healthy volunteers

Code: NCT04107064·Recruiting·Listed Sep 2019

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Effects of Hypoxic Breathwork

for Hypoxic Breathwork With Music and Affirmative Messaging

1 location in La Jolla

Sponsor: University of California, San Diego

Sex: All·Age: 18 - 45·Accepts healthy volunteers

Code: NCT06317259·Recruiting·Listed Mar 2024

Apply to this trial