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 28, 2026.

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5,286 clinical trials

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Comparing Analgesic Regimen Effectiveness and Safety for Surgery for Kids Trial

for Surgery

Sites in Los Angeles, Palo Alto +2 more locations

Sponsor: University of Michigan

Sex: All·Age: 12 - 20

Code: NCT06671002·Phase 4·Recruiting·Listed Nov 2024

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Spectroscopic Evaluation of Middle Ear Infection

for Middle Ear Infection

2 locations in Orange

Sponsor: University of California, Irvine

Sex: All·Age: Up to 21·Accepts healthy volunteers

Code: NCT04812093·Recruiting·Listed Mar 2021

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GPC2-CAR T Cell Therapy for Relapsed or Refractory Medulloblastoma in Children and Young Adults

for Medulloblastoma

1 location in Palo Alto

Sponsor: Stanford University

Sex: All·Age: 1 - 30

Code: NCT07087002·Phase 1·Recruiting·Listed Jul 2025

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Development of 3D Multi-Parametric Ultrasound (MPUS) as a Decision Support Tool for Patients

for Liver Cancer, Adult

Sites in San Diego, Palo Alto +1 more location

Sponsor: University of California, San Diego

Sex: All·Age: 18+

Code: NCT05705219·Recruiting·Listed Jan 2023

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Alpha-Emitting Radionuclide or Beta-Emitting Radionuclide With Metastasis-Directed Stereotactic Body Radiotherapy for the Treatment of Recurrent, Oligometastatic Prostate Adenocarcinoma

for Oligometastatic Prostate Adenocarcinoma

1 location in Los Angeles

Sponsor: Jonsson Comprehensive Cancer Center

Sex: Male·Age: 18+

Code: NCT07150715·Phase 2·Recruiting·Listed Sep 2025

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IL1 Inhibition in FOP

for Fibrodysplasia Ossificans Progressiva (FOP)

1 location in San Francisco

Sponsor: University of California, San Francisco

Sex: All·Age: 6 - 30

Code: NCT06724562·Recruiting·Listed Dec 2024

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Neoadjuvant Nivolumab + Relatlimab (Opdualag) Versus Nivolumab for Resectable High-Risk Basal Cell Carcinoma

for Basal Cell Carcinoma

Drug: Relatlimab

Sites in San Francisco, La Jolla & Irvine

Sponsor: University of California, San Diego

Sex: All·Age: 18+

Code: NCT06624475·Phase 2·Recruiting·Listed Oct 2024

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International Registry Study of Neutral Lipid Storage Disease (NLSD) / Triglyceride Deposit Cardiomyovasculopathy (TGCV) and Related Diseases

for Neutral Lipid Storage Disease

Sites in Stanford +1 more location

Sponsor: Translational Research Center for Medical Innovation, Kobe, Hyogo, Japan

Sex: All·Age: All ages

Code: NCT02918032·Recruiting·Listed Sep 2016

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Impact of Intraoperative ICG on Functional Outc in RARP

for Prostate Adenocarcinoma

1 location in Orange

Sponsor: University of California, Irvine

Sex: Male·Age: 18+

Code: NCT06446648·EARLY_Phase 1·Recruiting·Listed Jun 2024

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Study Adding Drugs to Usual Treatment for Large B-Cell Lymphoma That Returned or Did Not Respond to Treatment

for Grade 3b Follicular Lymphoma

Sites in Los Angeles, Duarte +97 more locations

Sponsor: SWOG Cancer Research Network

Sex: All·Age: 18+

Code: NCT05890352·Phase 2·Recruiting·Listed Jun 2023

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A Novel Multiplex ELISA Assay for Evaluating Patients With Microscopic Hematuria for Bladder Cancer

for Bladder Cancer

Sites in Los Angeles, Long Beach +4 more locations

Sponsor: Cedars-Sinai Medical Center

Sex: All·Age: 18 - 90

Code: NCT03193541·Recruiting·Listed Jun 2017

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Metabolic Cost of Walking With Passive vs. Powered Prosthetic Knees Among Persons With Limb Loss

for Transfemoral Amputation

1 location in Loma Linda

Sponsor: Loma Linda University

Sex: All·Age: 18 - 75

Code: NCT05831696·Recruiting·Listed Apr 2023

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Ropivacaine and Fentanyl for Labor Epidural Initiation

for Pregnancy

1 location in San Francisco

Sponsor: University of California, San Francisco

Sex: Female·Age: 18+

Code: NCT07076368·Phase 3·Recruiting·Listed Jul 2025

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Treatment of Ocular Discomfort in Glaucoma Patients Using Multiple Topical Medications

for Glaucoma

1 location in Fountain Valley

Sponsor: University of California, Los Angeles

Sex: All·Age: All ages·Accepts healthy volunteers

Code: NCT04354545·Recruiting·Listed Apr 2020

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Flow and Grow - The Ideal Time to Wean CPAP Off In Extremely Low Birth Weight Infants

for Neonatal Respiratory Failure

Sites in San Diego, La Jolla +3 more locations

Sponsor: University of California, San Diego

Sex: All·Age: Up to 30 Weeks

Code: NCT06123143·Recruiting·Listed Nov 2023

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PhI Pilot Study Pafolacianine Inject for Intraoperative Imaging on Outcomes of GI Cancer Peritoneal Carcinomatosis

for Gastrointestinal Cancer

1 location in Orange

Sponsor: University of California, Irvine

Sex: All·Age: 18+

Code: NCT06511037·EARLY_Phase 1·Recruiting·Listed Jul 2024

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Molecularly Targeted Radionuclide Therapy Via the Integrin Alphavbeta6

for Metastatic Nonsmall Cell Lung Cancer

1 location in Sacramento

Sponsor: University of California, Davis

Sex: All·Age: 18+

Code: NCT06228482·Phase 1·Recruiting·Listed Jan 2024

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Trial of Ixazomib for Kaposi Sarcoma

for Kaposi Sarcoma

Sites in San Francisco, San Diego +9 more locations

Sponsor: AIDS Malignancy Consortium

Sex: All·Age: 18+

Code: NCT04305691·Phase 2·Recruiting·Listed Mar 2020

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Fluorine-18-AlphaVBeta6-Binding Peptide Positron Emission Tomography in Metastatic Non-Small Cell Lung Cancer

for Lung Cancer

1 location in Sacramento

Sponsor: University of California, Davis

Sex: All·Age: 18+

Code: NCT05452005·Phase 1·Recruiting·Listed Jul 2022

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Teamwork Makes the Dream Work

for HIV Infections

1 location in Loma Linda

Sponsor: Loma Linda University

Sex: All·Age: 18+

Code: NCT05866523·Recruiting·Listed May 2023

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Wavefront-guided LASIK Surgery Compared to Ray Tracing-Guided LASIK Surgery

for Myopia

1 location in Palo Alto

Sponsor: Stanford University

Sex: All·Age: 22 - 59·Accepts healthy volunteers

Code: NCT07078799·Recruiting·Listed Jul 2025

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Platform Clinical Study for Conquering Scleroderma

for Interstitial Lung Disease Due to Systemic Disease

Sites in Los Angeles, Palo Alto +24 more locations

Sponsor: Scleroderma Research Foundation, Inc.

Sex: All·Age: 18+

Code: NCT06195072·Phase 2·Recruiting·Listed Jan 2024

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Study of Psilocybin for Anorexia in Young Adults

for Anorexia Nervosa

2 locations in San Francisco

Sponsor: Marissa Raymond-Flesch, MD, MPH

Sex: All·Age: 18 - 25

Code: NCT06399263·Phase 2·Recruiting·Listed May 2024

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A Study of Enzalutamide, Enzalutamide in Combination With Mifepristone, or Chemotherapy in People With Metastatic Breast Cancer

for Metastatic Breast Cancer

Sites in San Francisco +11 more locations

Sponsor: Memorial Sloan Kettering Cancer Center

Sex: All·Age: 18+

Code: NCT06099769·Phase 2·Recruiting·Listed Oct 2023

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@neurIST : Intregrated Biomedical Informatics for the Management of Cerebral Aneurysms

for Intracranial Aneurysm

Sites in San Francisco +2 more locations

Sponsor: University Hospital, Geneva

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

Code: NCT05526352·Recruiting·Listed Sep 2022

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Treatment of Borderline Personality Disorder With rTMS

for Borderline Personality Disorder

2 locations in Los Angeles

Sponsor: University of California, Los Angeles

Sex: All·Age: 18 - 65

Code: NCT07197502·Recruiting·Listed Sep 2025

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Enfortumab Vedotin Plus Pembrolizumab With Selective Bladder Sparing for Treatment of Muscle-invasive Bladder Cancer

for Muscle Invasive Bladder Urothelial Carcinoma

Sites in Duarte +4 more locations

Sponsor: Matthew Galsky

Sex: All·Age: 18+

Code: NCT06809140·Phase 2·Recruiting·Listed Feb 2025

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Prostate Active Surveillance Study

for Prostatic Neoplasms

Sites in San Francisco, Stanford +8 more locations

Sponsor: University of Washington

Sex: Male·Age: 21+

Code: NCT00756665·Recruiting·Listed Sep 2008

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Studying the Effects of Digital Interventions on Cognition, Wellbeing, Stress, and Sleep in Older Adults

for MCI

1 location in San Francisco

Sponsor: University of California, San Francisco

Sex: All·Age: 60 - 85·Accepts healthy volunteers

Code: NCT06633978·Recruiting·Listed Oct 2024

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Enhancing Attention and Wellbeing Using Digital Therapeutics

for Aging

1 location in San Francisco

Sponsor: University of California, San Francisco

Sex: All·Age: 60 - 99·Accepts healthy volunteers

Code: NCT06397469·Recruiting·Listed May 2024

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Checkpoint Inhibition In Pediatric Hepatocellular Carcinoma

for Hepatocellular Carcinoma, Childhood

Sites in San Francisco +4 more locations

Sponsor: Allison O'Neill, MD

Sex: All·Age: 0 - 30

Code: NCT04134559·Phase 2·Recruiting·Listed Oct 2019

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Multidisciplinary Low-Barrier and Mobile HIV Care to Improve Retention and Viral Suppression: Stakeholder-Engaged Design and Evaluation

for HIV

Sites in San Francisco & Oakland

Sponsor: University of California, San Francisco

Sex: All·Age: 15+·Accepts healthy volunteers

Code: NCT05887557·Recruiting·Listed Jun 2023

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Personalized Brain Stimulation to Treat Chronic Concussive Symptoms

for Post-Concussion Syndrome

1 location in Westwood, Los Angeles

Sponsor: University of California, Los Angeles

Sex: All·Age: 18 - 65

Code: NCT06073886·Phase 2·Recruiting·Listed Oct 2023

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Isolating and Mitigating Sequentially Dependent Perceptual Errors in Clinical Visual Search

for Vision

1 location in Berkeley

Sponsor: University of California, Berkeley

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

Code: NCT04332783·Recruiting·Listed Apr 2020

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Beat Childhood Cancer Specimen Banking and Data Registry

for Pediatric Cancer

Sites in San Diego +16 more locations

Sponsor: Giselle Sholler

Sex: All·Age: All ages·Accepts healthy volunteers

Code: NCT04715178·Recruiting·Listed Jan 2021

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Neural Mechanisms of Meditation for Opioid-Treated Chronic Low Back Pain

for Low Back Pain

1 location in La Jolla

Sponsor: University of Utah

Sex: All·Age: 18 - 65

Code: NCT05607381·Recruiting·Listed Nov 2022

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BPH Global Registry

for Benign Prostatic Hyperplasia

1 location in Los Angeles

Sponsor: Société Internationale d'Urologie

Sex: Male·Age: 18+

Code: NCT05543200·Recruiting·Listed Sep 2022

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The MITRAL II Pivotal Trial (Mitral Implantation of TRAnscatheter vaLves).

for Mitral Annular Calcification

Sites in Los Angeles, San Francisco +11 more locations

Sponsor: Mayra Guerrero

Sex: All·Age: 18+

Code: NCT04408430·Recruiting·Listed May 2020

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CMV-specific HIV-CAR T Cells as Immunotherapy for HIV/AIDS

for HIV-1

Sites in San Diego & Duarte

Sponsor: City of Hope Medical Center

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

Code: NCT06252402·EARLY_Phase 1·Recruiting·Listed Feb 2024

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Improving Islet Transplantation Outcomes With Gastrin for Type I Diabetes

for Diabetes Mellitus, Type 1

1 location in Duarte

Sponsor: City of Hope Medical Center

Sex: All·Age: 18 - 68

Code: NCT03746769·Phase 1, Phase 2·Recruiting·Listed Nov 2018

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