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 25, 2026.

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5,286 clinical trials

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ATLAS-1: Advanced Trial for Longitudinal Assessment in Salma 1

for Depressed Mood

Sites in La Jolla & Laguna Hills

Sponsor: Salma Health, Inc.

Sex: All·Age: 18+

Code: NCT07528014·Recruiting·Listed Apr 2026

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Testing Whether Hormone Therapy With Ribociclib is as Effective as Chemotherapy Followed by Hormone Therapy With Ribociclib for the Treatment of High Anatomic Stage Breast Cancer With Low Recurrence Risk, The RxFINE-Low Trial

for Anatomic Stage II Breast Cancer AJCC v8

Drug: Ribociclib

Sites in San Francisco, Palo Alto +70 more locations

Sponsor: National Cancer Institute (NCI)

Sex: All·Age: 18+

Code: NCT07391774·Phase 3·Recruiting·Listed Feb 2026

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Continued Pressure for Alveolar Protection (CPAP Trial)

for Bronchopulmonary Dysplasia (BPD)

Sites in San Diego, Palo Alto +13 more locations

Sponsor: NICHD Neonatal Research Network

Sex: All·Age: Up to 31 Weeks

Code: NCT07417111·Recruiting·Listed Feb 2026

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Quality of End-of-Life Care for Children With Cancer

for Childhood Hematopoietic and Lymphatic System Neoplasm

Sites in Oakland +14 more locations

Sponsor: Children's Oncology Group

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

Code: NCT07412002·Recruiting·Listed Feb 2026

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Empowering Youth With School Discipline Referrals as Peer Coaches

for Disruptive Behavior

1 location in Los Angeles

Sponsor: University of Southern California

Sex: All·Age: 10 - 15

Code: NCT07515742·Recruiting·Listed Apr 2026

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"Vasectomy: Right for Me?" Decision Support Tool

for Vasectomy

Sites in San Francisco +1 more location

Sponsor: University of Pittsburgh

Sex: Male·Age: 21 - 55

Code: NCT07451067·Recruiting·Listed Mar 2026

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Predicting Pre-dementia

for Mild Cognitive Impairment (MCI)

1 location in San Diego

Sponsor: Prevention Research Consortium Corp.

Sex: All·Age: 55+·Accepts healthy volunteers

Code: NCT07516119·Recruiting·Listed Apr 2026

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Study of Novel Therapies for Young People With Recurrent/Progressive Atypical Teratoid Rhabdoid Tumor (ATRT)

for Recurrent Atypical Teratoid/Rhabdoid Tumor

2 locations in San Francisco

Sponsor: Sabine Mueller, MD, PhD

Sex: All·Age: 1 - 39

Code: NCT07447076·Phase 2·Recruiting·Listed Mar 2026

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Community Health Adaptation & Resilience Mobilization (CHARM) HeatWise

for Heat Illness

1 location in Lakeport

Sponsor: Public Health Institute, California

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

Code: NCT07500545·Recruiting·Listed Mar 2026

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Focal Radiation Therapy (HDR-Brachytherapy) for the Treatment of Prostate Cancer

for Prostate Adenocarcinoma

1 location in Los Angeles

Sponsor: Jonsson Comprehensive Cancer Center

Sex: Male·Age: 40+

Code: NCT07468903·Recruiting·Listed Mar 2026

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Efficacy of Laser Interstitial Thermal Therapy in Young Persons With Low-grade Glioma

for Low-grade Glioma

1 location in San Francisco

Sponsor: University of California, San Francisco

Sex: All·Age: 2 - 25

Code: NCT07506239·Recruiting·Listed Apr 2026

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Body Clocks - Coordination of Peripheral and Central Oscillators

for Circadian Dysregulation

1 location in Stanford

Sponsor: Stanford University

Sex: Female·Age: 18 - 30·Accepts healthy volunteers

Code: NCT07459764·Recruiting·Listed Mar 2026

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Acupuncture Therapy for Pediatric Disorders of Gut-Brain Interaction

for Disorders of Gut-brain Interaction

1 location in Irvine

Sponsor: Children's Hospital of Orange County

Sex: All·Age: 8 - 17

Code: NCT07435610·Recruiting·Listed Feb 2026

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Nutritional Intervention for College Students With Depression

for Depression - Major Depressive Disorder

1 location in La Jolla

Sponsor: University of California, San Diego

Sex: All·Age: 18+

Code: NCT07490782·Recruiting·Listed Mar 2026

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Testing the Addition of Anti-Cancer Drug Sonrotoclax, to the Standard Treatment Zanubrutinib, for Previously Untreated CLL/SLL

for Chronic Lymphocytic Leukemia

Drug: Sonrotoclax

Sites in Los Angeles +151 more locations

Sponsor: Alliance for Clinical Trials in Oncology

Sex: All·Age: 65+

Code: NCT07321652·Phase 3·Recruiting·Listed Jan 2026

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A Study of Obecabtagene Autoleucel in People With B-cell Acute Lymphoblastic Leukemia

for Acute Lymphoblastic Leukemia

Sites in Stanford +7 more locations

Sponsor: Memorial Sloan Kettering Cancer Center

Sex: All·Age: 40+

Code: NCT07400029·Phase 2·Recruiting·Listed Feb 2026

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Mobile Vehicle-Based Delivery of Lenacapavir Pre-Exposure Prophylaxis in Los Angeles County

for HIV Prevention

1 location in Santa Monica

Sponsor: University of California, Los Angeles

Sex: All·Age: 18+

Code: NCT07467018·Recruiting·Listed Mar 2026

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Personalized AI-Driven Models in Cognitive Behavioral Therapy for Anxiety

for Generalized Anxiety Disorder (GAD)

1 location in Los Angeles

Sponsor: University of Southern California

Sex: All·Age: 18+

Code: NCT07430800·Recruiting·Listed Feb 2026

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IIT2025-03-YANG-LIFT-HCC

for Hepato Cellular Carcinoma

1 location in Los Angeles

Sponsor: Ju Dong Yang

Sex: All·Age: 18+

Code: NCT07489976·Phase 2·Recruiting·Listed Mar 2026

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Studying the PAGODA Algorithm for Chemotherapy Dose Changes to Prevent Unplanned Treatment Delays

for Ampulla of Vater Carcinoma

Sites in Sacramento, Stockton +330 more locations

Sponsor: Alliance for Clinical Trials in Oncology

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

Code: NCT07283939·Recruiting·Listed Dec 2025

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Cognition and Behavior With Sham Accelerated TMS

for Depression

1 location in Sacramento

Sponsor: University of California, Davis

Sex: All·Age: 15 - 25

Code: NCT07397858·Recruiting·Listed Feb 2026

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PVI Alone Versus PVI Plus PWI and SVCI With PFA

for Persistent Atrial Fibrillation

1 location in San Francisco

Sponsor: Edward Gerstenfeld, MD

Sex: All·Age: 18+

Code: NCT07405359·Recruiting·Listed Feb 2026

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Navigation Intervention for Adolescent and Young Adult Cancer Survivors

for Breast Cancer

1 location in Pasadena

Sponsor: Kaiser Permanente

Sex: All·Age: 21 - 45

Code: NCT07406087·Recruiting·Listed Feb 2026

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Safety and Tolerability Study of Human Neural Stem Cells for Huntington's Disease

for Huntington Disease

1 location in Irvine

Sponsor: Leslie Thompson

Sex: All·Age: 18 - 65

Code: NCT07451613·Phase 1, Phase 2·Recruiting·Listed Mar 2026

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A Study of Safety and Drug Levels of ePGT121v1-LS, PGDM1400LS, and VRC07-523LS in Adult Participants Without HIV-1

for HIV

Sites in San Francisco +6 more locations

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

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

Code: NCT07390955·Phase 1·Recruiting·Listed Feb 2026

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Intraoperative Wound Irrigation for Pilonidal Disease

for Pilonidal Disease

1 location in Palo Alto

Sponsor: Stanford University

Sex: All·Age: 8 Months - 30

Code: NCT07417202·Recruiting·Listed Feb 2026

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Continuous Glucose Monitoring (CGM) in Prediabetes With Community Based Recruitment

for Prediabetes

1 location in Los Angeles

Sponsor: David S Black, PhD

Sex: All·Age: 35+·Accepts healthy volunteers

Code: NCT07477249·Recruiting·Listed Mar 2026

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Tumor Genomics, Individual Risk Factors, and External Drivers of Health on Health Outcomes for Patients With Meningioma

for Meningioma of Brain

1 location in San Francisco

Sponsor: University of California, San Francisco

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

Code: NCT07418775·Recruiting·Listed Feb 2026

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Sleep Well Firefighters: An App-based Program to Improve Sleep, Cognition, and Behavioral Health in Firefighters

for Sleep Health

1 location in San Luis Obispo

Sponsor: California Polytechnic State University-San Luis Obispo

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

Code: NCT07477184·Recruiting·Listed Mar 2026

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Behavioral Approach for Latinas Addressing Nutrition, Cravings, and Eating Patterns to Prevent Type 2 Diabetes

for Prediabetes

1 location in La Jolla

Sponsor: University of California, San Diego

Sex: Female·Age: 18 - 55

Code: NCT07478263·Recruiting·Listed Mar 2026

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Comparing Ultrasound-Guided Transgluteal Nerve Block to Standard Care

for Sciatica Acute

1 location in San Francisco

Sponsor: University of California, San Francisco

Sex: All·Age: 18+

Code: NCT07397117·Recruiting·Listed Feb 2026

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Moon and Sun Brothers: A Community Prevention Intervention (Hermanos de Luna y Sol)

for Help-Seeking Behavior

Sites in San Francisco +1 more location

Sponsor: San Francisco State University

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

Code: NCT07475702·Recruiting·Listed Mar 2026

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This Clinical Trial Compares Two Phacoemulsification Systems Used in a Bilateral Cataract Surgery Subjects in Order to Study CDE and Ultrasound Time During Cataract Removal

for Nuclear Sclerosis of the Lens

1 location in Los Angeles

Sponsor: Nicole Fram M.D.

Sex: All·Age: 18+

Code: NCT07468877·Recruiting·Listed Mar 2026

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Prospective Registry of Histotripsy for Soft Tissue Tumors

for Soft Tissue Neoplasm

1 location in San Francisco

Sponsor: University of California, San Francisco

Sex: All·Age: 18+

Code: NCT07470008·Recruiting·Listed Mar 2026

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Impact of Barostimulation on Hemodynamics in Adults With Heart Failure

for HFrEF - Heart Failure With Reduced Ejection Fraction

Sites in San Francisco +6 more locations

Sponsor: Columbia University

Sex: All·Age: 18+

Code: NCT07335510·Recruiting·Listed Jan 2026

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Bowel Continence Across the Lifespan in People With Spina Bifida

for Spina Bifida

Sites in Los Angeles, San Francisco +22 more locations

Sponsor: David Chu

Sex: All·Age: 5+

Code: NCT07390318·Recruiting·Listed Feb 2026

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Kimchi and Gut Health

for Healthy Adult Participants

2 locations in Davis

Sponsor: University of California, Davis

Sex: All·Age: 19 - 70·Accepts healthy volunteers

Code: NCT07435831·Recruiting·Listed Feb 2026

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Sleep Health in U.S. Marines

for Depression

1 location in San Diego

Sponsor: San Diego State University

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

Code: NCT07420205·Phase 2·Recruiting·Listed Feb 2026

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A Study of Revumenib and Mezigdomide in People With Leukemia

for Leukemia

Drug: Mezigdomide

Sites in Duarte +9 more locations

Sponsor: Memorial Sloan Kettering Cancer Center

Sex: All·Age: 12+

Code: NCT07356154·Phase 1, Phase 2·Recruiting·Listed Jan 2026

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Data-Driven Strategies for Patient Engagement About Cancer Clinical Trials

for Hematopoietic and Lymphatic System Neoplasm

1 location in Los Angeles

Sponsor: University of Southern California

Sex: All·Age: 21+

Code: NCT07456436·Recruiting·Listed Mar 2026

Apply to this trial