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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Pediatric Metabolic Dysfunction-associated Steatotic Liver Disease and Food Insecurity

for MASLD - Metabolic Dysfunction-Associated Steatotic Liver Disease

1 location in San Francisco

Sponsor: University of California, San Francisco

Sex: All·Age: 6 - 17

Code: NCT07090083·Recruiting·Listed Jul 2025

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Food Insecurity and MASLD: A Fruit and Vegetable Intervention Study

for MASLD - Metabolic Dysfunction-Associated Steatotic Liver Disease

1 location in San Francisco

Sponsor: University of California, San Francisco

Sex: All·Age: 6 - 17

Code: NCT07091539·Recruiting·Listed Jul 2025

Apply to this trial

Type 2 Continuous Glucose Monitoring Academy

for Type 2 Diabetes

1 location in Los Angeles

Sponsor: Children's Hospital Los Angeles

Sex: All·Age: 8 - 21

Code: NCT06516640·Recruiting·Listed Jul 2024

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CGM Academy for Youth With Type 1 Diabetes

for Type1 Diabetes

1 location in Los Angeles

Sponsor: Children's Hospital Los Angeles

Sex: All·Age: 8 - 18

Code: NCT06408207·Recruiting·Listed May 2024

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MYTHS - MYocarditis THerapy With Steroids

for Myocarditis Acute

Sites in San Diego +3 more locations

Sponsor: Niguarda Hospital

Sex: All·Age: 18 - 69

Code: NCT05150704·Phase 3·Recruiting·Listed Dec 2021

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Novel Multimodal Neural, Physiological, and Behavioral Sensing and Machine Learning for Mental States

for No Condition

Sites in Los Angeles & Downey

Sponsor: University of Southern California

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

Code: NCT07110688·Recruiting·Listed Aug 2025

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Pregnancy and Postpartum Breastfeeding Support for Patients With Gestational Diabetes

for Gestational Diabetes Mellitus (GDM)

1 location in Sacramento

Sponsor: University of California, Davis

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

Code: NCT07176793·Recruiting·Listed Sep 2025

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The ExTINGUISH Trial of Inebilizumab in NMDAR Encephalitis

for Autoimmune Encephalitis

Drug: Inebilizumab

Sites in Sacramento, Orange +33 more locations

Sponsor: University of Utah

Sex: All·Age: 12+

Code: NCT04372615·Phase 2·Recruiting·Listed May 2020

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Adenovirus-specific Cytotoxic T-lymphocytes for Refractory Adenovirus Infection

for Adenovirus

Sites in Los Angeles, San Francisco +8 more locations

Sponsor: New York Medical College

Sex: All·Age: 1 Month - 79

Code: NCT03266627·Phase 2·Recruiting·Listed Aug 2017

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Virus Specific Cytotoxic T-Lymphocytes (CTLs) for Refractory Cytomegalovirus (CMV)

for Cytomegalovirus Infections

Sites in Los Angeles, San Francisco +7 more locations

Sponsor: New York Medical College

Sex: All·Age: 1 Month - 79

Code: NCT03266640·Phase 2·Recruiting·Listed Aug 2017

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Chemoimmunotherapy and Allogeneic Stem Cell Transplant for NK T-cell Leukemia/Lymphoma

for NK-Cell Lymphoma

Sites in San Francisco, Orange +4 more locations

Sponsor: New York Medical College

Sex: All·Age: 1 - 31

Code: NCT03719105·EARLY_Phase 1·Recruiting·Listed Oct 2018

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Neuromuscular Blockade Comparison for GI-2 Recovery After Bowel Resection

for Intestinal Disease

1 location in Orange

Sponsor: University of California, Irvine

Sex: All·Age: 18+

Code: NCT06112353·Phase 4·Recruiting·Listed Nov 2023

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Anticoagulation Profile in Pregnant Women Treated With Three Times a Day of Low Molecular Weight Heparin (LMWH)

for Pregnancy, High Risk

1 location in Orange

Sponsor: University of California, Irvine

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

Code: NCT04861103·Phase 4·Recruiting·Listed Apr 2021

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Examining the Effects of Cytisinicline on Neural Substrates of Cigarette Cue-reactivity

for Smoking Cessation

1 location in Los Angeles

Sponsor: University of California, Los Angeles

Sex: All·Age: 18 - 65

Code: NCT06617312·Phase 2·Recruiting·Listed Sep 2024

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Rehabilitation in Safety-net Environments (RISE) to Improve Outcomes in Vulnerable Patients With COPD

for COPD (Chronic Obstructive Pulmonary Disease)

3 locations in San Francisco

Sponsor: University of California, San Francisco

Sex: All·Age: 40 - 90

Code: NCT05572632·Recruiting·Listed Oct 2022

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Feasibility of the BrainGate2 Neural Interface System in Persons With Tetraplegia (BG-Speech-02)

for Anarthria

1 location in Sacramento

Sponsor: Leigh R. Hochberg, MD, PhD.

Sex: All·Age: 18 - 80

Code: NCT06094205·Recruiting·Listed Oct 2023

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Transnasal Sphenopalatine Ganglion Block for Treatment of Acute Subarachnoid Hemorrhage Associated Headache

for SAH (Subarachnoid Hemorrhage)

1 location in Sacramento

Sponsor: University of California, Davis

Sex: All·Age: 18 - 100

Code: NCT06621329·Phase 2, Phase 3·Recruiting·Listed Oct 2024

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Magnesium Infusion for Pain Management in Critically Ill Trauma Patients

for Trauma

1 location in Sacramento

Sponsor: University of California, Davis

Sex: All·Age: 18+

Code: NCT04166877·Phase 4·Recruiting·Listed Nov 2019

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Modified Immune Cells (CD19 CAR T Cells) and Acalabrutinib for the Treatment of Relapsed or Refractory Mantle Cell Lymphoma

for Recurrent Mantle Cell Lymphoma

1 location in Duarte

Sponsor: City of Hope Medical Center

Sex: All·Age: 18 - 75

Code: NCT04484012·Phase 2·Recruiting·Listed Jul 2020

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Delayed Immunological Tolerance in Patients With Well-functioning Pre-existing HLA-matched Kidney Transplants

for End Stage Kidney Disease

1 location in Los Angeles

Sponsor: University of California, Los Angeles

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

Code: NCT05525507·Phase 1·Recruiting·Listed Sep 2022

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Characterizing Cognitive Decline in Late Life Depression: The ADNI Depression Project

for Major Depression

1 location in San Francisco

Sponsor: University of Southern California

Sex: All·Age: 65+

Code: NCT02434393·Recruiting·Listed May 2015

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Topical Insulin for Glaucoma

for Glaucoma

1 location in Palo Alto

Sponsor: Stanford University

Sex: All·Age: 18+

Code: NCT05206877·Phase 1·Recruiting·Listed Jan 2022

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Pragmatic Trial of Psilocybin Therapy in Palliative Care

for Demoralization

Sites in Los Angeles, San Francisco +3 more locations

Sponsor: Charles S. Grob, M.D.

Sex: All·Age: 18+

Code: NCT05403086·Phase 2·Recruiting·Listed Jun 2022

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Genetics of Charcot Marie Tooth (CMT) - Modifiers of CMT1A, New Causes of CMT2

for Charcot-Marie-Tooth Disease, Type Ia (Disorder)

Sites in Los Angeles, Palo Alto +15 more locations

Sponsor: University of Iowa

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

Code: NCT01193088·Recruiting·Listed Sep 2010

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Multi-center Trial to Improve Nocturia and Sleep in Older Adults

for Nocturia

Sites in Los Angeles +1 more location

Sponsor: Atlanta VA Medical Center

Sex: All·Age: 60+

Code: NCT06110091·Recruiting·Listed Oct 2023

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Screening Emotions in Adolescents at the Hospital for mTBI

for Brain Injury Traumatic Mild

Sites in Sacramento +5 more locations

Sponsor: University of California, Davis

Sex: All·Age: 11 - 17

Code: NCT06370520·Recruiting·Listed Apr 2024

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Filter Initial & Long Term Evaluation After Placement and Retrieval Registry

for Venous Thromboembolism

1 location in Stanford

Sponsor: Stanford University

Sex: All·Age: All ages

Code: NCT01158482·Recruiting·Listed Jul 2010

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Tirzepatide for Alcohol Use Disorder

for Alcohol Use Disorder

Drug: Tirzepatide

1 location in Los Angeles

Sponsor: University of Southern California

Sex: All·Age: 21 - 65

Code: NCT06994338·Phase 2·Recruiting·Listed May 2025

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Exercise Intolerance in Non-obstructive Hypertrophic Cardiomyopathy

for Hypertrophic Cardiomyopathy

1 location in San Francisco

Sponsor: University of California, San Francisco

Sex: All·Age: 18 - 80

Code: NCT05818605·Recruiting·Listed Apr 2023

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Advance Care Planning With Formerly Homeless Older Adults Residing in Permanent Supportive Housing

for Advance Care Planning

Sites in San Francisco, Oakland & Fremont

Sponsor: University of California, San Francisco

Sex: All·Age: 50+·Accepts healthy volunteers

Code: NCT06239896·Recruiting·Listed Feb 2024

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Evaluate Safety of Axicabtagene Ciloleucel Reinfusion (Axi-Cel-2) in Patients With Relapsed and/or Refractory Second Line High-Risk Non-Hodgkin Lymphoma After Standard of Care Axi-Cel

for Non-Hodgkin Lymphoma

1 location in Palo Alto

Sponsor: Stanford University

Sex: All·Age: 18+

Code: NCT05794958·Phase 1·Recruiting·Listed Apr 2023

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Group-Based Psychological Treatments Over Video Conference for Older Veterans With Chronic Pain

for Chronic Musculoskeletal Pain

Sites in West Los Angeles +1 more location

Sponsor: VA Office of Research and Development

Sex: All·Age: 60 - 95

Code: NCT06004804·Recruiting·Listed Aug 2023

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Diluted Aqueous Povidone-Iodine Compared to Saline to Decrease Surgical Site Infections

for Surgical Site Infection

1 location in Loma Linda

Sponsor: Loma Linda University

Sex: All·Age: 18 - 80

Code: NCT06363877·Phase 3·Recruiting·Listed Apr 2024

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A Physiologic Comparison of Two Approaches to Treating Peripheral Neuropathy

for Peripheral Neuropathy With Type 2 Diabetes

1 location in Loma Linda

Sponsor: Loma Linda University

Sex: All·Age: 45 - 85

Code: NCT05577390·Recruiting·Listed Oct 2022

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PSCA-Targeting CAR-T Cells Plus or Minus Radiation for the Treatment of Patients With PSCA+ Metastatic Castration-Resistant Prostate Cancer

for Castration-Resistant Prostate Carcinoma

1 location in Duarte

Sponsor: City of Hope Medical Center

Sex: Male·Age: 18+

Code: NCT05805371·Phase 1·Recruiting·Listed Apr 2023

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Melanoma Margins Trial-II: 1cm v 2cm Wide Surgical Excision Margins for AJCC Stage II Primary Cutaneous Melanoma

for Cutaneous Melanoma, Stage II

Sites in Los Angeles, Palo Alto +128 more locations

Sponsor: Melanoma and Skin Cancer Trials Limited

Sex: All·Age: 18+

Code: NCT03860883·Recruiting·Listed Mar 2019

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Pinch Grafting Versus Second Intention Wound Healing for Mohs Micrographic Surgery Defects on the Scalp

for Scarring

1 location in Sacramento

Sponsor: University of California, Davis

Sex: All·Age: 18+

Code: NCT06287866·Recruiting·Listed Mar 2024

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An Evaluation of the Pink Cloud Application in Post- Treatment Substance Use Disorder Support

for Substance Use

1 location in Los Angeles

Sponsor: Loyola Marymount University

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

Code: NCT07042451·Recruiting·Listed Jun 2025

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Vinblastine/Prednisone Versus Single Therapy With Cytarabine for Langerhans Cell Histiocytosis (LCH)

for Langerhans Cell Histiocytosis

Sites in San Diego, Palo Alto +8 more locations

Sponsor: Baylor College of Medicine

Sex: All·Age: Up to 21

Code: NCT02670707·Phase 3·Recruiting·Listed Feb 2016

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MCNAIR Study: coMparative effeCtiveness of iN-person and teleheAlth cardIac Rehabilitation

for Myocardial Infarction

Sites in San Francisco +4 more locations

Sponsor: University of California, San Francisco

Sex: All·Age: 18+

Code: NCT05933083·Recruiting·Listed Jul 2023

Apply to this trial