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.

Filter results

Filter results

State

City

Recruitment status

Phase

Study type

Intervention

Condition

Sex

Age

Healthy volunteers only

5,286 clinical trials

↓ Download CSV

Randomized Trial for cLBP (Gokhale Project)

for Lower Back Pain Chronic

1 location in Redwood City

Sponsor: Stanford University

Sex: All·Age: 18 - 65

Code: NCT05657964·Recruiting·Listed Dec 2022

Apply to this trial

CSP #2026 - Beta Blocker Dialyzability on Cardiovascular Outcomes

for End-Stage Kidney Disease

Sites in Long Beach +7 more locations

Sponsor: VA Office of Research and Development

Sex: All·Age: 18+

Code: NCT05931276·Phase 3·Recruiting·Listed Jul 2023

Apply to this trial

Validation of Early Prognostic Data for Recovery Outcome After Stroke for Future, Higher Yield Trials

for Stroke

Sites in Los Angeles, San Francisco +39 more locations

Sponsor: University of Cincinnati

Sex: All·Age: 18+

Code: NCT05338697·Recruiting·Listed Apr 2022

Apply to this trial

Stem Cell Transplant From Donors After Alpha Beta Cell Depletion in Children and Adults With T-allo10 Cells Addback

for Hematologic Diseases

1 location in Palo Alto

Sponsor: Porteus, Matthew, MD

Sex: All·Age: 1 Month - 45

Code: NCT04640987·Phase 1·Recruiting·Listed Nov 2020

Apply to this trial

Age-dependent Effects of Smoked and Oral Delta-9-THC

for Pain

1 location in Los Angeles

Sponsor: University of California, Los Angeles

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

Code: NCT05865470·Phase 1·Recruiting·Listed May 2023

Apply to this trial

Understanding the Clinical Pharmacology of Marijuana-Tobacco Co-administration

for THC

1 location in San Francisco

Sponsor: University of California, San Francisco

Sex: All·Age: 21 - 65·Accepts healthy volunteers

Code: NCT05999383·Phase 2·Recruiting·Listed Aug 2023

Apply to this trial

Effects of Dexrazoxane Hydrochloride on Biomarkers Associated With Cardiomyopathy and Heart Failure After Cancer Treatment

for Hodgkin Lymphoma in Remission

Sites in San Diego, Palo Alto +54 more locations

Sponsor: Children's Oncology Group

Sex: All·Age: All ages

Code: NCT01790152·Recruiting·Listed Feb 2013

Apply to this trial

Online Yoga vs Acceptance and Commitment Therapy for Treating Chronic Musculoskeletal Pain

for Chronic Pain

1 location in Palo Alto

Sponsor: Palo Alto Veterans Institute for Research

Sex: All·Age: 18+

Code: NCT06704061·Recruiting·Listed Nov 2024

Apply to this trial

Achieving Chronic Care equiTy by leVeraging the Telehealth Ecosystem

for Diabetes

1 location in San Francisco

Sponsor: University of California, San Francisco

Sex: All·Age: 18+

Code: NCT06598436·Recruiting·Listed Sep 2024

Apply to this trial

HIP Fracture Accelerated Surgical TreaTment And Care tracK 2 Trial

for Hip Fractures

Sites in Davis +18 more locations

Sponsor: Population Health Research Institute

Sex: All·Age: 45+

Code: NCT04743765·Recruiting·Listed Feb 2021

Apply to this trial

Pediatric Dose Optimization for Seizures in Emergency Medical Services

for Seizures

Sites in Los Angeles, San Francisco +18 more locations

Sponsor: Stanford University

Sex: All·Age: 6 Months - 13

Code: NCT05121324·Phase 3·Recruiting·Listed Nov 2021

Apply to this trial

A Trial of Robotic Versus Open Hysterectomy Surgery in Cervix Cancer

for Cervical Cancer

Sites in San Francisco, San Diego +124 more locations

Sponsor: GOG Foundation

Sex: Female·Age: 18+

Code: NCT04831580·Recruiting·Listed Apr 2021

Apply to this trial

From Opinion to Evidence: Multi-site Evaluation of Custom Dynamic Orthosis Best Practices

for Foot Injury

Sites in San Diego +4 more locations

Sponsor: Jason Wilken

Sex: All·Age: 18 - 65

Code: NCT06352788·Recruiting·Listed Apr 2024

Apply to this trial

The Effect and Safety of Anti-inflammatories and Dextrose Prolotherapy Injections in Treating Knee Osteoarthritis

for Knee Osteoarthritis (OA)

1 location in Travis AFB

Sponsor: David Grant U.S. Air Force Medical Center

Sex: All·Age: 45 - 75

Code: NCT06911359·Phase 2·Recruiting·Listed Apr 2025

Apply to this trial

ShOrt neCK AAA RAndomized Trial - ESAR and FEVAR: SOCRATES

for Aortic Aneurysm, Abdominal

Sites in La Jolla, Stanford +7 more locations

Sponsor: FCRE (Foundation for Cardiovascular Research and Education)

Sex: All·Age: 18+

Code: NCT04503395·Recruiting·Listed Aug 2020

Apply to this trial

Effects of Pomegranate Juice on Ulcerative Colitis

for Ulcerative Colitis (Disorder)

2 locations in Los Angeles

Sponsor: University of California, Los Angeles

Sex: All·Age: 18+

Code: NCT07115862·Recruiting·Listed Aug 2025

Apply to this trial

Continuous Infusions vs Scheduled Bolus Infusions

for Surgical Procedure, Unspecified

1 location in Stanford

Sponsor: Stanford University

Sex: All·Age: 18+

Code: NCT03230565·Phase 4·Recruiting·Listed Jul 2017

Apply to this trial

Intraoperative Imaging of Gastrointestinal Malignancies Using Pafolacianine (CYTALUX™)

for Gastrointestinal Cancer

1 location in Los Angeles

Sponsor: Cedars-Sinai Medical Center

Sex: All·Age: 18+

Code: NCT07124351·Phase 4·Recruiting·Listed Aug 2025

Apply to this trial

Modernizing Perinatal Syphilis Testing

for Syphilis

Sites in Los Angeles +8 more locations

Sponsor: The University of Texas Health Science Center, Houston

Sex: All·Age: Up to 45

Code: NCT06082453·Recruiting·Listed Oct 2023

Apply to this trial

Peer Support for Adolescents and Emerging Adults With Sickle Cell Pain

for Pain

Sites in Los Angeles +13 more locations

Sponsor: University of Pittsburgh

Sex: All·Age: 16 - 30

Code: NCT06374238·Recruiting·Listed Apr 2024

Apply to this trial

Magnetic Resonance (MR) Imaging With Hyperpolarized 13C-Pyruvate +/- 13C,15N-Urea in Patients With Prostate Cancer

for Prostate Cancer

1 location in San Francisco

Sponsor: Robert Bok, MD, PhD

Sex: Male·Age: 18+

Code: NCT06391034·Phase 2·Recruiting·Listed Apr 2024

Apply to this trial

AWARE: Management of ADHD in Autism Spectrum Disorder

for ADHD

Sites in Los Angeles, Irvine +8 more locations

Sponsor: Daniel Coury

Sex: All·Age: 4 - 17

Code: NCT05916339·Phase 4·Recruiting·Listed Jun 2023

Apply to this trial

Group Advanced Care Planning Pilot for Veterans

for Cancer

1 location in Palo Alto

Sponsor: VA Palo Alto Health Care System

Sex: All·Age: 18+

Code: NCT06646614·Recruiting·Listed Oct 2024

Apply to this trial

TReatment of ADC-Refractory Breast CancEr With Dato-DXd or T-DXd: TRADE DXd

for Breast Cancer

Sites in San Francisco +10 more locations

Sponsor: Ana C Garrido-Castro, MD

Sex: All·Age: 18+

Code: NCT06533826·Phase 2·Recruiting·Listed Aug 2024

Apply to this trial

A Longitudinal Study Looking at the Prevalence, Risk Factors & Consequences of Persistent Post-surgical Pain in Children

for Chronic Pain

Sites in San Francisco +6 more locations

Sponsor: Telethon Kids Institute

Sex: All·Age: Up to 16·Accepts healthy volunteers

Code: NCT06354699·Recruiting·Listed Apr 2024

Apply to this trial

Effects of White Button Mushroom on Inflammation in Obese Postmenopausal Women at High Risk of Breast Cancer

for Breast Carcinoma

1 location in Duarte

Sponsor: City of Hope Medical Center

Sex: Female·Age: 21+·Accepts healthy volunteers

Code: NCT04913064·Recruiting·Listed Jun 2021

Apply to this trial

Interleukin-6 Receptor Inhibitor Sarilumab in Combination With Ipilimumab, Nivolumab and Relatlimab in Patients With Unresectable Stage III or Stage IV Melanoma

for Melanoma

Drug: Ipilimumab

Sites in Los Angeles +3 more locations

Sponsor: NYU Langone Health

Sex: All·Age: 18 - 100

Code: NCT05428007·Phase 2·Recruiting·Listed Jun 2022

Apply to this trial

A Reduced-Intensity Conditioning Regimen (Cyclophosphamide, Pentostatin, Anti-thymocyte Globulin) Followed by Haploidentical Hematopoietic Stem Cell Transplant for the Treatment of Patients With Refractory or Recurrent Severe Aplastic Anemia

for Recurrent Severe Aplastic Anemia

1 location in Duarte

Sponsor: City of Hope Medical Center

Sex: All·Age: Up to 75·Accepts healthy volunteers

Code: NCT05757310·Phase 1·Recruiting·Listed Mar 2023

Apply to this trial

Provider-Mediated Communication of Genetic Testing Results to At-Risk Relatives of Cancer Patients to Improve Genetic Counseling and Testing Rates, Family HOPE Study

for Hematopoietic and Lymphoid System Neoplasm

1 location in Duarte

Sponsor: City of Hope Medical Center

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

Code: NCT05772130·Recruiting·Listed Mar 2023

Apply to this trial

Positron Emission Tomography (PET) Guided Stereotactic Body Radiation Therapy for the Treatment of Oligoprogressive Non-small Cell Lung Cancer, Melanoma, and Renal Cell Carcinoma

for Lung Non-Small Cell Carcinoma

1 location in Duarte

Sponsor: City of Hope Medical Center

Sex: All·Age: 18+

Code: NCT05830058·Phase 2·Recruiting·Listed Apr 2023

Apply to this trial

Acalabrutinib, Obinutuzumab, and Glofitamab for the Treatment of Relapsed or Refractory Mantle Cell Lymphoma

for Mantle Cell Lymphoma

Drug: Glofitamab

1 location in Duarte

Sponsor: City of Hope Medical Center

Sex: All·Age: 18+

Code: NCT06054776·Phase 2·Recruiting·Listed Sep 2023

Apply to this trial

NIA_Improving Function and Well-being by Improving Patient Memory: Transdiagnostic Sleep and Circadian Treatment

for Sleep Disorder

1 location in Berkeley

Sponsor: University of California, Berkeley

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

Code: NCT05986604·Recruiting·Listed Aug 2023

Apply to this trial

ID Of Prognostic Factors In Mycosis Fungoides/Sezary Syndrome

for Mycosis Fungoides

Sites in Palo Alto, Duarte +5 more locations

Sponsor: Stanford University

Sex: All·Age: All ages

Code: NCT02848274·Recruiting·Listed Jul 2016

Apply to this trial

Liver Transplantation in Patients With CirrHosis and Severe Acute-on-Chronic Liver Failure: iNdications and outComEs

for Liver Diseases

Sites in Los Angeles +15 more locations

Sponsor: European Foundation for Study of Chronic Liver Failure

Sex: All·Age: 18 - 80

Code: NCT04613921·Recruiting·Listed Nov 2020

Apply to this trial

Neurophysiologic Biomarkers in Rett Syndrome

for Rett Syndrome

Sites in Los Angeles +5 more locations

Sponsor: Children's Hospital of Philadelphia

Sex: Female·Age: 1 - 18·Accepts healthy volunteers

Code: NCT05932589·Recruiting·Listed Jul 2023

Apply to this trial

Trial of Social Work Services in Fracture Clinic Setting

for Orthopaedic Fractures

1 location in San Francisco

Sponsor: Sheila Sprague

Sex: All·Age: 18+

Code: NCT06973655·Recruiting·Listed May 2025

Apply to this trial

Target ALS Biomarker Study; Longitudinal Biofluids, Clinical Measures, and At Home Measures

for Amyotrophic Lateral Sclerosis

Sites in San Diego +9 more locations

Sponsor: Target ALS Foundation, Inc.

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

Code: NCT05137665·Recruiting·Listed Nov 2021

Apply to this trial

A Trial Comparing Screening Mammography With and Without Assistance From Artificial Intelligence for Breast Cancer Detection and Recall Rates in Adult Patients

for Breast Cancer Screening

Sites in Los Angeles, San Diego +4 more locations

Sponsor: Jonsson Comprehensive Cancer Center

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

Code: NCT06934239·Phase 4·Recruiting·Listed Apr 2025

Apply to this trial

Treatment in Thoracic Aortic Aneurysm: Surgery vs Surveillance

for Ascending Aortic Aneurysm Enlargement

Sites in San Francisco +14 more locations

Sponsor: Ottawa Heart Institute Research Corporation

Sex: All·Age: 18 - 79

Code: NCT03536312·Recruiting·Listed May 2018

Apply to this trial

Implementing Food Referrals for Equity and Sustained Health

for Food Insecurity

1 location in San Diego

Sponsor: University of California, San Diego

Sex: All·Age: 5+·Accepts healthy volunteers

Code: NCT06661538·Phase 2·Recruiting·Listed Oct 2024

Apply to this trial