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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Improving Deceased-Donor Kidney Transplant Outcomes Via a Single Intragraft Injection of C1 Esterase Inhibitor (IMPROVE TRIAL)

for Kidney Transplant

Sites in Los Angeles +3 more locations

Sponsor: National Institute of Allergy and Infectious Diseases (NIAID)

Sex: All·Age: 18 - 75

Code: NCT06919003·Phase 2·Recruiting·Listed Apr 2025

Apply to this trial

Collection of Immunology Specimens From Patients With Cancer or Blood Disorders, and Healthy Volunteers

for Healthy Subject

1 location in Los Angeles

Sponsor: University of Southern California

Sex: All·Age: 19+·Accepts healthy volunteers

Code: NCT03207854·Recruiting·Listed Jul 2017

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Kidney Transplant Preemptive Therapy or Prophylaxis for CMV Prevention in D+R Recipients

for Cytomegalovirus (CMV)

Sites in San Francisco +4 more locations

Sponsor: University of California, San Francisco

Sex: All·Age: 18+

Code: NCT06798909·Phase 3·Recruiting·Listed Jan 2025

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Surgical Excision vs Neoadjuvant Radiotherapy+Delayed Surgical Excision of Ductal Carcinoma

for Ductal Breast Carcinoma in Situ

1 location in Stanford

Sponsor: Stanford University

Sex: Female·Age: 18+

Code: NCT03909282·Recruiting·Listed Apr 2019

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Venetoclax Basket Trial for High Risk Hematologic Malignancies

for Myelodysplastic Syndromes, de Novo

Drug: Venetoclax

Sites in San Francisco +4 more locations

Sponsor: Andrew E. Place, MD

Sex: All·Age: 1 - 40

Code: NCT05292664·Phase 1·Recruiting·Listed Mar 2022

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Investigating the Neural Mechanisms of Repetitive Brain Stimulation With Invasive and Noninvasive Electrophysiology in Humans

for Major Depressive Disorder

1 location in Stanford

Sponsor: Stanford University

Sex: All·Age: 18 - 65

Code: NCT05996900·Recruiting·Listed Aug 2023

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Fecal Microbiota Transplant National Registry

for Fecal Microbiota Transplantation

Sites in San Francisco, Redwood City +26 more locations

Sponsor: American Gastroenterological Association

Sex: All·Age: All ages

Code: NCT03325855·Recruiting·Listed Oct 2017

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Ketamine for Methamphetamine Use Disorder

for Substance Use Disorders

Sites in San Leandro +1 more location

Sponsor: University of Texas Southwestern Medical Center

Sex: All·Age: 18 - 65

Code: NCT06496750·Phase 2·Recruiting·Listed Jul 2024

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Repletion of Ergothioneine in Patients With Kidney Failure

for Esrd

1 location in Palo Alto

Sponsor: Stanford University

Sex: All·Age: 18+

Code: NCT06487546·Recruiting·Listed Jul 2024

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Avapritinib With Decitabine in Patients With SM-AHN

for Systemic Mastocytosis With an Associated Hematologic Neoplasm

Sites in Palo Alto +6 more locations

Sponsor: H. Lee Moffitt Cancer Center and Research Institute

Sex: All·Age: 18+

Code: NCT06327685·Phase 1·Recruiting·Listed Mar 2024

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CirrhosisRx CDS System

for Cirrhosis

1 location in San Francisco

Sponsor: University of California, San Francisco

Sex: All·Age: 18+

Code: NCT05967273·Recruiting·Listed Aug 2023

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Low Intensity Focused Ultrasound for Mild Cognitive Impairment and Mild Alzheimer's Disease

for Mild Cognitive Impairment

1 location in Los Angeles

Sponsor: University of California, Los Angeles

Sex: All·Age: 50 - 90

Code: NCT05417555·Recruiting·Listed Jun 2022

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Effect of Novel Exhalational Delivery System With Fluticasone (EDS-FLU) on Eustachian Tube Dysfunction (ETD)

for Eustachian Tube Dysfunction

Sites in Los Angeles, Sacramento +2 more locations

Sponsor: Cedars-Sinai Medical Center

Sex: All·Age: 18 - 80·Accepts healthy volunteers

Code: NCT05275686·Phase 2·Recruiting·Listed Mar 2022

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Brain Stimulation to the Hippocampus in Schizophrenia

for Schizophrenia Disorders

1 location in Stanford

Sponsor: Stanford University

Sex: All·Age: 18 - 65·Accepts healthy volunteers

Code: NCT07010614·Recruiting·Listed Jun 2025

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Phase 2 Open Label Randomized Study of Pirtobrutinib and Brexucabtagene Autoleucel in R/R MCL

for Mantle Cell Lymphoma

Sites in Stanford +2 more locations

Sponsor: H. Lee Moffitt Cancer Center and Research Institute

Sex: All·Age: 18+

Code: NCT06553872·Phase 2·Recruiting·Listed Aug 2024

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Study of Food Aversion in Patients With Anorexia Nervosa

for Anorexia Nervosa

1 location in La Jolla

Sponsor: University of California, San Diego

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

Code: NCT03100656·Recruiting·Listed Apr 2017

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SAMe Trial for Patients With Alcoholic Cirrhosis

for Alcoholic Cirrhosis

Sites in Los Angeles +1 more location

Sponsor: Indiana University

Sex: All·Age: 18 - 70·Accepts healthy volunteers

Code: NCT04250259·Phase 2·Recruiting·Listed Jan 2020

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International Rare Brain Tumor Registry

for Astroblastoma

Sites in Los Angeles, San Francisco +4 more locations

Sponsor: Children's National Research Institute

Sex: All·Age: Up to 45

Code: NCT05697874·Recruiting·Listed Jan 2023

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Promoting Early Intervention Timing and Attention to Language

for MONITOR

Sites in Los Angeles +1 more location

Sponsor: University of California, Los Angeles

Sex: All·Age: 6 Months - 8 Months

Code: NCT05853861·Recruiting·Listed May 2023

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Lurbinectedin in FET-Fused Tumors

for Ewing Sarcoma

Drug: Lurbinectedin

Sites in Los Angeles +5 more locations

Sponsor: Children's Hospital of Philadelphia

Sex: All·Age: 10+

Code: NCT05918640·Phase 1, Phase 2·Recruiting·Listed Jun 2023

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EEG Changes and DNA Markers Related to taVNS in Stroke Patients: a Preliminary Study

for Stroke

1 location in Pomona

Sponsor: Casa Colina Hospital and Centers for Healthcare

Sex: All·Age: 18 - 80

Code: NCT06226493·Recruiting·Listed Jan 2024

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An Optimal Dose Finding Study of N-Acetylcysteine in Patients With Myeloproliferative Neoplasms

for Myeloproliferative Neoplasm

1 location in Irvine

Sponsor: University of California, Irvine

Sex: All·Age: 18+

Code: NCT05123365·Phase 1, Phase 2·Recruiting·Listed Nov 2021

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CMV-MVA Triplex Vaccination in HLA-Matched Related Stem Cell Donors for the Prevention of CMV Infection in Patients Undergoing Hematopoietic Stem Cell Transplant

for Acute Lymphoblastic Leukemia

Sites in Duarte +2 more locations

Sponsor: City of Hope Medical Center

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

Code: NCT06059391·Phase 2·Recruiting·Listed Sep 2023

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Stroke and CPAP Outcome Study 3 Randomized Controlled Trial

for Stroke Patients

Sites in Downey +1 more location

Sponsor: University of Washington

Sex: All·Age: 18+

Code: NCT06722755·Recruiting·Listed Dec 2024

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Community Partnership for Telehealth Solutions to Convey Information and Enhance Care

for Colorectal Cancer

1 location in Los Angeles

Sponsor: University of Arizona

Sex: All·Age: 45 - 64

Code: NCT06542835·Recruiting·Listed Aug 2024

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Effects of Brain Stimulation on Cognition, Oscillations and GABA Levels in Schizophrenia

for Schizophrenia

1 location in Sacramento

Sponsor: University of California, Davis

Sex: All·Age: 18 - 47·Accepts healthy volunteers

Code: NCT04267003·Recruiting·Listed Feb 2020

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TBI Using IMRT and Cyclophosphamide Prior to Stem Cell Transplant for the Treatment of Severe Systemic Sclerosis

for Systemic Scleroderma

1 location in Duarte

Sponsor: City of Hope Medical Center

Sex: All·Age: 18 - 65

Code: NCT04380831·EARLY_Phase 1·Recruiting·Listed May 2020

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Short Course Radiation Therapy and Combination Chemotherapy for the Treatment of Stage II-III Rectal Cancer

for Locally Advanced Rectal Carcinoma

1 location in Los Angeles

Sponsor: Jonsson Comprehensive Cancer Center

Sex: All·Age: 18+

Code: NCT04703101·Phase 1·Recruiting·Listed Jan 2021

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New T-UP: Engaging Vulnerable Students in Diabetes Prevention

for Prediabetes

1 location in Los Angeles

Sponsor: University of California, Los Angeles

Sex: All·Age: 17 - 25

Code: NCT07225218·Recruiting·Listed Nov 2025

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Personalized Perioperative Analgesia Platform (PPAP) for Pediatric Spine Fusion Surgery (sIRB)

for PPAP

Sites in San Francisco +4 more locations

Sponsor: Senthil Sadhasivam

Sex: All·Age: 10 - 21

Code: NCT05367609·Recruiting·Listed May 2022

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S1501 Dual Observational and Randomized Cohort Study of Patients With Metastatic HER-2+ Breast Cancer at Risk of Cardiac Toxicity

for Cardiotoxicity

Sites in Los Angeles, Duarte +142 more locations

Sponsor: SWOG Cancer Research Network

Sex: All·Age: 18+

Code: NCT03418961·Phase 3·Recruiting·Listed Feb 2018

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Motor Outcomes to Validate Evaluations in Pediatric FSHD (MOVE Peds)

for Muscular Dystrophy, Facioscapulohumeral

Sites in Palo Alto +5 more locations

Sponsor: University of Kansas Medical Center

Sex: All·Age: 5 - 17

Code: NCT06847282·Recruiting·Listed Feb 2025

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Investigating the Effectiveness of Stereotactic Body Radiotherapy (SBRT) in Addition to Standard of Care Treatment for Cancer That Has Spread Beyond the Original Site of Disease

for Triple Negative Breast Cancer

Sites in San Carlos +11 more locations

Sponsor: Memorial Sloan Kettering Cancer Center

Sex: All·Age: 18+

Code: NCT03808337·Phase 2·Recruiting·Listed Jan 2019

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Simvastatin Treatment to Improve Patient-reported Outcomes in Patients With Chronic Pancreatitis

for Recurrent Acute Pancreatitis

Sites in Los Angeles, Stanford +3 more locations

Sponsor: Cedars-Sinai Medical Center

Sex: All·Age: 18 - 75

Code: NCT05771675·EARLY_Phase 1·Recruiting·Listed Mar 2023

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Accelerated Intermittent Theta Burst Stimulation for Adolescent and Young Adult Depression With Elevated Suicide Risk

for Major Depressive Disorder (MDD)

1 location in Sacramento

Sponsor: University of California, Davis

Sex: All·Age: 15 - 25

Code: NCT07025720·Recruiting·Listed Jun 2025

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TReating Incontinence for Underlying Mental and Physical Health

for Urinary Incontinence, Urge

Sites in San Francisco & Palo Alto

Sponsor: University of California, San Francisco

Sex: Female·Age: 60+·Accepts healthy volunteers

Code: NCT05362292·Phase 4·Recruiting·Listed May 2022

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Students Rising Above: Offsetting the Health and Mental Health Costs of Resilience

for Internalizing Mental Health Symptoms

1 location in Los Angeles

Sponsor: University of California, Los Angeles

Sex: All·Age: 13+·Accepts healthy volunteers

Code: NCT05846282·Recruiting·Listed May 2023

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Responding With Evidence and Access for Childhood Headaches

for Headache

Sites in San Francisco +14 more locations

Sponsor: Children's Hospital Medical Center, Cincinnati

Sex: All·Age: 10 - 17

Code: NCT05889624·Recruiting·Listed Jun 2023

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Biomolecular Characteristics of Reminder-Focused Positive-Psychiatry

for Posttraumatic Stress Disorder

1 location in Los Angeles

Sponsor: University of California, Los Angeles

Sex: All·Age: 11 - 15

Code: NCT04529031·Recruiting·Listed Aug 2020

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Dextromethorphan for Treatment of Postoperative Pain

for Post-operative Pain

1 location in Los Angeles

Sponsor: Nathanael Heckmann

Sex: All·Age: 18+

Code: NCT05278494·Recruiting·Listed Mar 2022

Apply to this trial