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

A Feasibility Study to Evaluate Safety and Probable Benefit of the Eclipse XL1 System for Distraction Enterogenesis in Adult and Pediatric Patients With Short Bowel Syndrome

for Short Bowel Syndrome

Sites in San Francisco, Palo Alto +4 more locations

Sponsor: Eclipse Regenesis, Inc.

Sex: All·Age: 3 Months - 65

Code: NCT05535361·Recruiting·Listed Sep 2022

Apply to this trial

COMparison of Physiological Algorithms for Real-time Evaluation of Atrial Fibrillation

for Atrial Fibrillation

1 location in Stanford

Sponsor: Stanford University

Sex: All·Age: 21 - 90

Code: NCT02997254·Recruiting·Listed Dec 2016

Apply to this trial

Food Allergy Registry at a Single Site

for Allergy and Asthma

1 location in Palo Alto

Sponsor: Stanford University

Sex: All·Age: 0 - 100

Code: NCT03539705·Recruiting·Listed May 2018

Apply to this trial

Targeted Therapy to Increase RAI Uptake in Metastatic DTC

for Papillary Thyroid Cancer

Sites in San Francisco +7 more locations

Sponsor: Children's Hospital of Philadelphia

Sex: All·Age: 0+

Code: NCT05024929·Recruiting·Listed Aug 2021

Apply to this trial

Machine Learning in Atrial Fibrillation

for Atrial Fibrillation

1 location in Stanford

Sponsor: Stanford University

Sex: All·Age: 22 - 80

Code: NCT05371405·Recruiting·Listed May 2022

Apply to this trial

Cabozantinib With Ifosfamide in Relapsed/Refractory Sarcomas

for Ewing Sarcoma

Drug: Cabozantinib

Sites in San Francisco +3 more locations

Sponsor: Children's Hospital of Philadelphia

Sex: All·Age: 5 - 40

Code: NCT06156410·Phase 1·Recruiting·Listed Dec 2023

Apply to this trial

Extended-release Sodium Oxybate in Children

for Narcolepsy Type 1 (NT 1)

1 location in Redwood City

Sponsor: Stanford University

Sex: All·Age: 7 - 17

Code: NCT06809803·Phase 2·Recruiting·Listed Feb 2025

Apply to this trial

Community-Based Health Coach for Access to Germline Genetic Testing Among African American Men With Prostate Cancer

for Prostate Carcinoma

3 locations in San Francisco

Sponsor: University of California, San Francisco

Sex: Male·Age: 18+

Code: NCT04763980·Recruiting·Listed Feb 2021

Apply to this trial

Integration of Real-Time Motion Tracking and Pediatric Rehabilitation

for Rehabilitation

1 location in Palo Alto

Sponsor: Stanford University

Sex: All·Age: 6 - 17

Code: NCT06924801·Recruiting·Listed Apr 2025

Apply to this trial

Hyperpolarized (HP) 13C Pyruvate Magnetic Resonance Imaging (MRI) for Response Monitoring to Neoadjuvant Abiraterone

for High Risk Prostate Carcinoma

1 location in San Francisco

Sponsor: Ivan de Kouchkovsky, MD

Sex: All·Age: 18+

Code: NCT06384222·Phase 2·Recruiting·Listed Apr 2024

Apply to this trial

Neuroimaging Predictors of Improvement to Pivotal Response Treatment (PRT) in Young Children With Autism

for Autism Spectrum Disorder

1 location in Stanford

Sponsor: Stanford University

Sex: All·Age: 2 - 4

Code: NCT03583684·Recruiting·Listed Jul 2018

Apply to this trial

Dissemination of the Donor Application: Utilizing Social Media to Identify Potential Live Organ Donors

for End Stage Renal Disease

Sites in San Diego +5 more locations

Sponsor: Johns Hopkins University

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

Code: NCT03803423·Recruiting·Listed Jan 2019

Apply to this trial

Trastuzumab Deruxtecan Alone or in Combination With Anastrozole for the Treatment of Early Stage HER2 Low, Hormone Receptor Positive Breast Cancer

for Early-stage Breast Cancer

Sites in Los Angeles, Torrance +5 more locations

Sponsor: Jonsson Comprehensive Cancer Center

Sex: All·Age: 18+

Code: NCT04553770·Phase 2·Recruiting·Listed Sep 2020

Apply to this trial

MI-CBTech: A Mobile Intervention for Community Integration in Homeless-Experienced Veterans With SMI

for Schizophrenia Spectrum Disorders

1 location in West Los Angeles

Sponsor: VA Office of Research and Development

Sex: All·Age: 18 - 65

Code: NCT06138054·Recruiting·Listed Nov 2023

Apply to this trial

PET Imaging Study of 64Cu-GRIP B for Patients Receiving CD19-directed CAR-T Therapy

for Non Hodgkin Lymphoma

1 location in San Francisco

Sponsor: Michael Randall

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

Code: NCT06522932·Phase 1·Recruiting·Listed Jul 2024

Apply to this trial

UCLA Perinatal Biospecimen Repository

for Pregnancy

1 location in Los Angeles

Sponsor: Yalda Afshar, MD, PhD

Sex: All·Age: 1 Minute+·Accepts healthy volunteers

Code: NCT05035160·Recruiting·Listed Sep 2021

Apply to this trial

RCT for Latina Mental Health Using Web-Based Apps

for Mental Health

1 location in Los Angeles

Sponsor: University of California, Los Angeles

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

Code: NCT06874790·Recruiting·Listed Mar 2025

Apply to this trial

Fidgeting and Attentional and Emotional Regulation in ADHD

for ADHD

1 location in Sacramento

Sponsor: University of California, Davis

Sex: All·Age: 18 - 30

Code: NCT04526600·Recruiting·Listed Aug 2020

Apply to this trial

Actinium 225 Labeled Anti-CEA Antibody (Ac225-DOTA-M5A) for the Treatment of CEA Producing Advanced or Metastatic Cancers

for Advanced Cancer

1 location in Duarte

Sponsor: City of Hope Medical Center

Sex: All·Age: 18+

Code: NCT05204147·Phase 1·Recruiting·Listed Jan 2022

Apply to this trial

Optimization of Chrononutrition to Reduce the Risk of Disease in Shift Workers

for Night Shift Work

1 location in La Jolla

Sponsor: Salk Institute for Biological Studies

Sex: All·Age: 18 - 70

Code: NCT06891352·Recruiting·Listed Mar 2025

Apply to this trial

ASXL-Related Disorders Natural History Study

for Bohring-Opitz Syndrome

1 location in Los Angeles

Sponsor: University of California, Los Angeles

Sex: All·Age: All ages

Code: NCT03303716·Recruiting·Listed Oct 2017

Apply to this trial

Family Foundations for Individuals Pregnant Via ART

for Assisted Reproductive Technology

1 location in Los Angeles

Sponsor: Cedars-Sinai Medical Center

Sex: Female·Age: 18+

Code: NCT06770972·Recruiting·Listed Jan 2025

Apply to this trial

Adjustment Disorders in the US Military: Disease Trajectories and ADNM-20-Mil Validation

for Adjustment Disorders

Sites in San Diego +2 more locations

Sponsor: Henry M. Jackson Foundation for the Advancement of Military Medicine

Sex: All·Age: 18 - 64

Code: NCT06885554·Recruiting·Listed Mar 2025

Apply to this trial

Mirikizumab in the Treatment of Chronic Inflammatory Conditions of the Pouch

for Pouchitis

Sites in Los Angeles +4 more locations

Sponsor: University of North Carolina, Chapel Hill

Sex: All·Age: 18 - 80

Code: NCT06864403·Phase 4·Recruiting·Listed Mar 2025

Apply to this trial

Transplant of Redeemed Organs by Judicious Administration of New Direct-Acting Antivirals for Hepatitis-C Heart Recipients

for Heart Failure

Sites in Los Angeles +1 more location

Sponsor: Baylor Research Institute

Sex: All·Age: 18 - 90

Code: NCT03383419·Phase 2·Recruiting·Listed Dec 2017

Apply to this trial

Closed-Loop Deep Brain Stimulation for Treatment-Resistant Bipolar Depression

for Bipolar II Disorder

1 location in San Francisco

Sponsor: Andrew Krystal

Sex: All·Age: 22 - 70

Code: NCT07127913·Recruiting·Listed Aug 2025

Apply to this trial

Full-Avoidance vs. Permissive/Regulated Drinking & Outcomes On Fibrillation

for Atrial Fibrillation (AF)

2 locations in San Francisco

Sponsor: University of California, San Francisco

Sex: All·Age: 21+

Code: NCT06754176·Recruiting·Listed Dec 2024

Apply to this trial

Light Therapy and Occupational Therapy Fatigue Management-Based Intervention for Patients With Genitourinary Cancers

for Bladder Carcinoma

1 location in Duarte

Sponsor: City of Hope Medical Center

Sex: All·Age: 18+

Code: NCT05519878·Recruiting·Listed Aug 2022

Apply to this trial

Evaluation of Combination Therapy for Upper Extremity Lymphedema

for Lymphedema Arm

1 location in Palo Alto

Sponsor: Stanford University

Sex: Female·Age: 18 - 75

Code: NCT05825157·Recruiting·Listed Apr 2023

Apply to this trial

Imaging-based Assessment of Oral Biofilm and Gingival Health

for Plaque, Dental

1 location in Irvine

Sponsor: University of California, Irvine

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

Code: NCT05470023·Recruiting·Listed Jul 2022

Apply to this trial

Precision Dosing of Metformin in Youth With T2D

for Type 2 Diabetes

Sites in San Francisco & Oakland

Sponsor: University of California, San Francisco

Sex: All·Age: 10 - 21·Accepts healthy volunteers

Code: NCT06120881·EARLY_Phase 1·Recruiting·Listed Nov 2023

Apply to this trial

Minimal Residual Disease Testing for the Early Detection of Cancer Recurrence in Resectable Stage II-IV Colorectal Cancer Patients

for Resectable Colorectal Carcinoma

Sites in Duarte, Irvine +11 more locations

Sponsor: City of Hope Medical Center

Sex: All·Age: 18+

Code: NCT07125729·Recruiting·Listed Aug 2025

Apply to this trial

Prospective Registry of ADC as First- and Second-line Treatment for Breast Cancer

for HER2-negative Breast Cancer

1 location in San Francisco

Sponsor: University of California, San Francisco

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

Code: NCT06774027·Recruiting·Listed Jan 2025

Apply to this trial

Food Insecurity Reduction & Strategy Team

for Diabetes Mellitus, Type 2

1 location in Palo Alto

Sponsor: Stanford University

Sex: All·Age: 18+

Code: NCT06329375·Recruiting·Listed Mar 2024

Apply to this trial

Aromatherapy Inhaler Use for HSCT Distress

for Cancer Distress

1 location in Stanford

Sponsor: Stanford University

Sex: All·Age: 18+

Code: NCT05302583·Recruiting·Listed Mar 2022

Apply to this trial

VIBRANT: VIB4920 for Active Lupus Nephritis

for Lupus Nephritis

Sites in Los Angeles, San Francisco +15 more locations

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

Sex: All·Age: 18+

Code: NCT05201469·Phase 2·Recruiting·Listed Jan 2022

Apply to this trial

A Trial to Improve Family Clinical Note Access and Outcomes for Hospitalized Children

for Hospitalized Child

Sites in Los Angeles +2 more locations

Sponsor: University of Wisconsin, Madison

Sex: All·Age: 18+

Code: NCT06722378·Recruiting·Listed Dec 2024

Apply to this trial

The Effects of Very Brief Exposure on PTSD in U.S. Combat Veterans

for Post Traumatic Stress Disorder

1 location in Los Angeles

Sponsor: Children's Hospital Los Angeles

Sex: All·Age: 18 - 50·Accepts healthy volunteers

Code: NCT06218381·Recruiting·Listed Jan 2024

Apply to this trial

RCT of NLP-Based Feedback for Improving SDM in Men With Localized Prostate Cancer

for Prostate Cancer

1 location in Los Angeles

Sponsor: Cedars-Sinai Medical Center

Sex: Male·Age: 18+

Code: NCT06856694·Recruiting·Listed Mar 2025

Apply to this trial

Cholesterol and Inflammation Lowering Via Bempedoic Acid, an ACL-inhibiting Regimen in HIV Trial (CLEAR HIV Trial)

for Dyslipidemias

Drug: Bempedoic acid

Sites in Los Angeles, San Francisco +1 more location

Sponsor: Priscilla Hsue, MD

Sex: All·Age: 40+

Code: NCT05488431·Phase 2·Recruiting·Listed Aug 2022

Apply to this trial