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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Be Well at Work-Plus: A Depression and Physical Activity Intervention for Hospital Service Workers (Aim 2)

for Depression

1 location in San Diego

Sponsor: San Diego State University

Sex: All·Age: 18+

Code: NCT06753123·Recruiting·Listed Dec 2024

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The WOW Project (WOW): Wonders Of The World Through Virtual Reality for Hospitalized Children

for Virtual Reality

1 location in Palo Alto

Sponsor: Stanford University

Sex: All·Age: 5 - 17

Code: NCT06911996·Recruiting·Listed Apr 2025

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Therapeutic Ketogenic Diet in Anorexia Nervosa

for Anorexia Nervosa in Remission

1 location in San Diego

Sponsor: University of California, San Diego

Sex: All·Age: 18 - 45

Code: NCT06000774·Recruiting·Listed Aug 2023

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Transcatheter Fontan Stenting: Impact on Hepatic Stiffness and Exercise Capacity

for Single-ventricle

1 location in Los Angeles

Sponsor: Children's Hospital Los Angeles

Sex: All·Age: 12 - 21

Code: NCT07073612·Recruiting·Listed Jul 2025

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SIRT With Tremelimumab and Durvalumab for Resectable HCC

for Resectable Hepatocellular Carcinoma

Drug: Tremelimumab

Sites in Los Angeles +2 more locations

Sponsor: Jiping Wang, MD, PhD

Sex: All·Age: 18+

Code: NCT05701488·Phase 1·Recruiting·Listed Jan 2023

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Improving Mobility After Revascularization in Peripheral Artery Disease

for Peripheral Artery Disease

Sites in Downey +6 more locations

Sponsor: Northwestern University

Sex: All·Age: 18+

Code: NCT06686121·Phase 3·Recruiting·Listed Nov 2024

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AFO Prescription to Optimize Post-Stroke Function

for Ankle Foot Orthosis (AFO)

Sites in Downey +3 more locations

Sponsor: University of Texas at Austin

Sex: All·Age: 18+

Code: NCT06692686·Recruiting·Listed Nov 2024

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Pimavanserin vs. Quetiapine for Treatment of Parkinson's Psychosis

for Parkinson's Disease Psychosis

Sites in Palo Alto, Loma Linda +7 more locations

Sponsor: VA Office of Research and Development

Sex: All·Age: 40+·Accepts healthy volunteers

Code: NCT04373317·Phase 4·Recruiting·Listed May 2020

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Efficacy of Nitrous Oxide in OCD: Pilot Study

for Obsessive-Compulsive Disorder

1 location in Stanford

Sponsor: Stanford University

Sex: All·Age: 18 - 65

Code: NCT03826693·Phase 2·Recruiting·Listed Feb 2019

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Confocal Laser Endomicroscopy as an Imaging Biomarker for the Diagnosis of Pancreatic Cystic Lesions

for Pancreatic Cyst

Sites in Stanford +8 more locations

Sponsor: Ohio State University Comprehensive Cancer Center

Sex: All·Age: 18+

Code: NCT03492151·Recruiting·Listed Apr 2018

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Carboplatin or Olaparib for BRcA Deficient Prostate Cancer

for Metastatic Castrate Resistant Prostate Cancer

Sites in West Los Angeles +14 more locations

Sponsor: VA Office of Research and Development

Sex: Male·Age: 18+

Code: NCT04038502·Phase 2·Recruiting·Listed Jul 2019

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Transcranial Magnetic Stimulation for Restricted and Repetitive Behavior in ASD

for Autism Spectrum Disorder

1 location in Stanford

Sponsor: Stanford University

Sex: All·Age: 12 - 45

Code: NCT04532424·Recruiting·Listed Aug 2020

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Phage Therapy for Recurrent UTIs in Kidney Transplant Recipients

for Urinary Tract Infection, Recurrent

1 location in La Jolla

Sponsor: University of California, San Diego

Sex: Female·Age: 18+

Code: NCT06409819·Phase 1, Phase 2·Recruiting·Listed May 2024

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BBD Longitudinal Study of Osteogenesis Imperfecta

for Osteogenesis Imperfecta

Sites in Los Angeles +10 more locations

Sponsor: Baylor College of Medicine

Sex: All·Age: All ages

Code: NCT02432625·Recruiting·Listed May 2015

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EBV-specific Cytotoxic T-lymphocytes (CTLs) for Refractory EBV Infection

for Epstein-Barr Virus Infections

Sites in Los Angeles, San Francisco +6 more locations

Sponsor: New York Medical College

Sex: All·Age: 1 Month - 79

Code: NCT03266653·Phase 2·Recruiting·Listed Aug 2017

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AutologousCD22 Chimeric Antigen Receptor (CAR)T Cells in w/Recurrent/Refractory B Cell Lymphomas

for Follicular Lymphoma

1 location in Palo Alto

Sponsor: Stanford University

Sex: All·Age: 18+

Code: NCT06340737·Phase 1·Recruiting·Listed Apr 2024

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Screening for AL Amyloidosis in Smoldering Multiple Myeloma

for Smoldering Multiple Myeloma

Sites in Los Angeles, San Francisco +11 more locations

Sponsor: Tufts Medical Center

Sex: All·Age: 40+

Code: NCT06365060·Recruiting·Listed Apr 2024

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I CAN DO Surgical ACP

for Surgical Advanced Care Planning

Sites in San Francisco, Irvine +1 more location

Sponsor: University of California, San Francisco

Sex: All·Age: 65+

Code: NCT06090552·Recruiting·Listed Oct 2023

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Sensory Adapted Dental Environments to Enhance Oral Care for Children With and Without Dental Fear and Anxiety

for Dental Fear and Anxiety

1 location in Los Angeles

Sponsor: University of Southern California

Sex: All·Age: 6 - 12·Accepts healthy volunteers

Code: NCT06912854·Recruiting·Listed Apr 2025

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Treating Adolescent Obsessive Compulsive Disorder With Transcranial Magnetic Stimulation

for Obsessive-Compulsive Disorder

1 location in San Francisco

Sponsor: University of California, San Francisco

Sex: All·Age: 13 - 17

Code: NCT07065669·Recruiting·Listed Jul 2025

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Lung Cancer Screening of Family Members of Patients With Mutation-Driven Lung Cancer

for Lung Cancer

1 location in Orange

Sponsor: University of California, Irvine

Sex: All·Age: 18 - 80

Code: NCT07062172·Recruiting·Listed Jul 2025

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Cognition and Motor Learning Post-stroke

for Stroke

1 location in Los Angeles

Sponsor: University of Southern California

Sex: All·Age: 45 - 85

Code: NCT04829071·EARLY_Phase 1·Recruiting·Listed Apr 2021

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OSA PAP Treatment for Veterans With SUD and PTSD on Residential Treatment Unit

for Post Traumatic Stress Disorder

1 location in San Diego

Sponsor: VA Office of Research and Development

Sex: All·Age: 18+

Code: NCT05156112·Recruiting·Listed Dec 2021

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Optimizing Liver MRI Using Breath-Holding With and Without Oxygen

for MRI

1 location in San Francisco

Sponsor: University of California, San Francisco

Sex: All·Age: 18 - 75·Accepts healthy volunteers

Code: NCT07135401·Recruiting·Listed Aug 2025

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ChangeGradients: Promoting Adolescent Health Behavior Change

for Alcohol Drinking

1 location in San Francisco

Sponsor: University of California, San Francisco

Sex: All·Age: 15 - 17·Accepts healthy volunteers

Code: NCT04110756·Recruiting·Listed Oct 2019

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Gabapentin to Reduce Opioid Use Postoperatively (GROUP) in Children

for Pain, Postoperative

1 location in Sacramento

Sponsor: University of California, Davis

Sex: All·Age: Up to 17

Code: NCT04724252·Phase 2, Phase 3·Recruiting·Listed Jan 2021

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Ca-Mg Butyrate in GWI

for Gulf War Illness

Sites in Long Beach +2 more locations

Sponsor: VA Office of Research and Development

Sex: All·Age: 40 - 70

Code: NCT05367245·Phase 2·Recruiting·Listed May 2022

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TabCAT Brain Health Assessment in Primary Care

for Mild Cognitive Impairment

1 location in Pasadena

Sponsor: University of California, San Francisco

Sex: All·Age: 18+

Code: NCT06090578·Recruiting·Listed Oct 2023

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Ruxolitinib With Tacrolimus and Methotrexate for the Prevention of Graft Versus Host Disease in Pediatric and Young Adult Patients Undergoing Allogeneic Hematopoietic Cell Transplant for Acute Myeloid Leukemia, Acute Lymphoblastic Leukemia, or Myelodysplastic Syndrome

for Acute Lymphoblastic Leukemia

Drug: Ruxolitinib

1 location in Duarte

Sponsor: City of Hope Medical Center

Sex: All·Age: 2 - 22

Code: NCT06128070·Phase 2·Recruiting·Listed Nov 2023

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Radioimmunotherapy (111Indium/225Actinium-DOTA-daratumumab) for the Treatment of Relapsed/Refractory Multiple Myeloma

for Recurrent Plasma Cell Myeloma

Drug: Daratumumab

1 location in Duarte

Sponsor: City of Hope Medical Center

Sex: All·Age: 18+

Code: NCT05363111·Phase 1·Recruiting·Listed May 2022

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Trial of Therapeutic Hypothermia in Patients With ARDS

for Respiratory Distress Syndrome, Adult

Sites in Los Angeles +13 more locations

Sponsor: University of Maryland, Baltimore

Sex: All·Age: 18 - 85

Code: NCT04545424·Phase 2·Recruiting·Listed Sep 2020

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Esophageal Temperature During PVI Using Q-DOT Micro

for Atrial Fibrillation Paroxysmal

1 location in Los Angeles

Sponsor: Cedars-Sinai Medical Center

Sex: All·Age: 18+

Code: NCT06392932·Recruiting·Listed May 2024

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DETECT-RPC Universal EM Screening

for Elder Abuse

Sites in San Francisco +6 more locations

Sponsor: The University of Texas Health Science Center, Houston

Sex: All·Age: 18+

Code: NCT05958654·Recruiting·Listed Jul 2023

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Sit Less, Interact and Move More (SLIMM) 2 Study

for Chronic Kidney Diseases

Sites in Stanford +1 more location

Sponsor: Srinvasan Beddhu

Sex: All·Age: 20+

Code: NCT05173714·Phase 2·Recruiting·Listed Dec 2021

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Technology Assisted Motivational Interviewing

for Smoking

2 locations in San Francisco

Sponsor: University of California, San Francisco

Sex: All·Age: 18+

Code: NCT06713603·Recruiting·Listed Dec 2024

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Enhancing Transdiagnostic Mechanisms of Cognitive Dyscontrol (R33)

for Anxiety Disorders

1 location in San Diego

Sponsor: University of California, San Diego

Sex: All·Age: 21 - 55

Code: NCT06273527·Phase 2, Phase 3·Recruiting·Listed Feb 2024

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Diagnostic Innovations in Glaucoma Study

for Primary Open Angle Glaucoma

1 location in La Jolla

Sponsor: University of California, San Diego

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

Code: NCT00221897·Recruiting·Listed Sep 2005

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SPL Insufficiency Syndrome (SPLIS)/NPHS14: a SPLIS Observational Study and Patient Registry (International)

for Sphingolipidoses

1 location in San Francisco

Sponsor: University of California, San Francisco

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

Code: NCT04885179·Recruiting·Listed May 2021

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Fecobionics in Biofeedback Therapy in Dyssynergia Patients

for Dyssynergia

Sites in San Diego +1 more location

Sponsor: The California Medical Innovations Institute, Inc.

Sex: All·Age: 21 - 75

Code: NCT05807321·Recruiting·Listed Apr 2023

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Safety and Effectiveness of the PXL-Platinum 330 System for Corneal Cross-Linking in Eyes With Corneal Ectasia

for Keratoconus

1 location in San Francisco

Sponsor: Goodman Eye Center

Sex: All·Age: 10+

Code: NCT04094090·Phase 2·Recruiting·Listed Sep 2019

Apply to this trial