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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Evaluation of Patients With Non-obstructive Coronary Arteries

for Chest Pain

1 location in Stanford

Sponsor: Stanford University

Sex: All·Age: 18+

Code: NCT00823563·Recruiting·Listed Jan 2009

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Enroll -HD: A Prospective Registry Study in a Global Huntington's Disease Cohort

for Huntington's Disease

Sites in Los Angeles, San Francisco +50 more locations

Sponsor: CHDI Foundation, Inc.

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

Code: NCT01574053·Recruiting·Listed Apr 2012

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Health Care Transition Readiness Short-Form Video Intervention

for Health Care Transition Readiness

1 location in Los Angeles

Sponsor: Children's Hospital Los Angeles

Sex: All·Age: 12 - 17

Code: NCT06842576·Recruiting·Listed Feb 2025

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Digitally Rendered Interventions And Knowledge To Limit Ethanol-Associated Atrial Fibrillation Severity

for Atrial Fibrillation (AF)

1 location in San Francisco

Sponsor: University of California, San Francisco

Sex: All·Age: 21+

Code: NCT06995391·Recruiting·Listed May 2025

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Testing ALERT With GTO in Middle Schools

for Substance Abuse

1 location in Los Angeles

Sponsor: RAND

Sex: All·Age: 11 - 70·Accepts healthy volunteers

Code: NCT05219422·Recruiting·Listed Feb 2022

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Computed Tomography-Guided Stereotactic Body Radiation Therapy With Intrafraction Motion Monitoring for the Treatment of Localized Prostate Cancer, ILLUSION Trial

for Localized Prostate Adenocarcinoma

1 location in Los Angeles

Sponsor: Jonsson Comprehensive Cancer Center

Sex: Male·Age: 18+

Code: NCT06995053·Recruiting·Listed May 2025

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Lebrikizumab in Moderate-to-severe Atopic Dermatitis

for Atopic Dermatitis

Sites in Folsom +1 more location

Sponsor: Johann E Gudjonsson MD PhD

Sex: All·Age: 18+

Code: NCT06906497·Phase 4·Recruiting·Listed Apr 2025

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Phase 2 Pragmatic Trial of Sentinel Lymph Node Biopsy (SLNB) in Patients With Clinically Node-Negative (cN0), High-Risk Cutaneous Squamous Cell Carcinoma (cSCC) of the Head and Neck

for Cutaneous Squamous Cell Carcinoma of the Head and Neck

1 location in Sacramento

Sponsor: University of California, Davis

Sex: All·Age: 18+

Code: NCT06990737·Phase 2·Recruiting·Listed May 2025

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Ziftomenib in Combination With Chemotherapy for Children With Relapsed/Refractory Acute Leukemia

for Relapsed/Refractory KMT2A-r Acute Leukemia

Sites in Los Angeles +10 more locations

Sponsor: PedAL BCU, LLC

Sex: All·Age: 0 - 21

Code: NCT06376162·Phase 1·Recruiting·Listed Apr 2024

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Hepatitis C Tracker Study

for Hepatitis C Virus Infection

Sites in Ventura & Alhambra

Sponsor: University of Southern California

Sex: All·Age: 18+

Code: NCT06870019·Recruiting·Listed Mar 2025

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Families Left Behind

for Grief

Sites in San Diego +2 more locations

Sponsor: RAND

Sex: All·Age: 18+

Code: NCT06854757·Recruiting·Listed Mar 2025

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Ivosidenib Plus Durvalumab and Gemcitabine/Cisplatin as First-Line Therapy in Participants With Locally Advanced or Metastatic Cholangiocarcinoma With an IDH1 Mutation

for Locally Advanced, Unresectable or Metastatic Cholangiocarcinoma With an IDH1 Mutation

Drug: Durvalumab

Sites in Los Angeles, Los Alamitos +6 more locations

Sponsor: Institut de Recherches Internationales Servier

Sex: All·Age: 18+

Code: NCT06501625·Phase 1, Phase 2·Recruiting·Listed Jul 2024

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Fluoxetine for the Modification of Colorectal Tumor Immune Cells Before Surgery in Patients With Colorectal Cancer

for Colorectal Adenocarcinoma

1 location in Los Angeles

Sponsor: Jonsson Comprehensive Cancer Center

Sex: All·Age: 18+

Code: NCT06225011·Phase 1·Recruiting·Listed Jan 2024

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Ultrasound Neuromodulation of the Brain for Alcohol Use Disorder

for Alcohol Use Disorder

1 location in San Francisco

Sponsor: University of California, San Francisco

Sex: All·Age: 18+

Code: NCT06518785·Recruiting·Listed Jul 2024

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Pulse Oximeter Accuracy in Healthy Humans During Hypoxia

for Hypoxia

1 location in San Francisco

Sponsor: University of California, San Francisco

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

Code: NCT06142019·Recruiting·Listed Nov 2023

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Pilot Study on In-vivo Non-invasive Skin Imaging Using Multiphoton Microscopy

for Skin Lesion

1 location in Irvine

Sponsor: University of California, Irvine

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

Code: NCT01771718·Recruiting·Listed Jan 2013

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An International, Multicenter, Prospective Registry on Post-traumatic Long Bones Defects

for Limb Fracture

Sites in Los Angeles +1 more location

Sponsor: AO Innovation Translation Center

Sex: All·Age: 18+

Code: NCT04112992·Recruiting·Listed Oct 2019

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Mitral Valve Screening Survey

for Mitral Valve Disease

Sites in Los Angeles +13 more locations

Sponsor: Medstar Health Research Institute

Sex: All·Age: 18+

Code: NCT04736667·Recruiting·Listed Feb 2021

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Medial-prefrontal Enhancement During Schizophrenia Systems Imaging

for Schizophrenia

1 location in San Francisco

Sponsor: University of California, San Francisco

Sex: All·Age: 18 - 64·Accepts healthy volunteers

Code: NCT04807530·Recruiting·Listed Mar 2021

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External Beam Radiation Therapy and Brachytherapy With Chemotherapy and Immunotherapy for the Treatment of Stage IVB Cervical Cancer

for Cervical Adenocarcinoma

Sites in Los Angeles, San Diego +2 more locations

Sponsor: Jonsson Comprehensive Cancer Center

Sex: All·Age: 18+

Code: NCT06543576·Phase 1, Phase 2·Recruiting·Listed Aug 2024

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Barotrauma in Hyperbaric Oxygen Therapy

for Barotrauma

1 location in Walnut Creek

Sponsor: John Muir Health

Sex: All·Age: 18+

Code: NCT05697328·Recruiting·Listed Jan 2023

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iMmune SignAtures and Clinical outComes in AP

for Acute Pancreatitis

Sites in Los Angeles +4 more locations

Sponsor: Ohio State University

Sex: All·Age: 18 - 75

Code: NCT05878236·Recruiting·Listed May 2023

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Trauma Resuscitation With Low-Titer Group O Whole Blood or Products

for Wounds and Injuries

Sites in Los Angeles +12 more locations

Sponsor: University of Alabama at Birmingham

Sex: All·Age: 15+

Code: NCT05638581·Phase 3·Recruiting·Listed Dec 2022

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A Randomized Controlled Trial Testing the Effect of the Youth Mindful Awareness Program on Negative Affect (YMAP2).

for Prevention

Sites in Los Angeles +2 more locations

Sponsor: Vanderbilt University

Sex: All·Age: 12 - 17·Accepts healthy volunteers

Code: NCT06526052·Recruiting·Listed Jul 2024

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The Cedars-Sinai Smidt Heart Institute Takotsubo Registry & Proteomic Study

for Takotsubo Cardiomyopathy

1 location in Los Angeles

Sponsor: Cedars-Sinai Medical Center

Sex: All·Age: 18+

Code: NCT03910569·Recruiting·Listed Apr 2019

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HEalth Advocate for Liver Transplant - Pilot

for Liver Transplant

1 location in San Francisco

Sponsor: University of California, San Francisco

Sex: All·Age: Up to 17

Code: NCT05700799·Recruiting·Listed Jan 2023

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School-based Paraeducator Education for Engagement at Recess

for Autism Spectrum Disorder

Sites in Los Angeles +2 more locations

Sponsor: University of Washington

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

Code: NCT06559267·Recruiting·Listed Aug 2024

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Hypofractionated External Beam Radiotherapy With Adaptive Planning for Endometrial and Cervical Cancers

for Endometrial Cancer

1 location in Los Angeles

Sponsor: Jonsson Comprehensive Cancer Center

Sex: Female·Age: 18+

Code: NCT06538337·Recruiting·Listed Aug 2024

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Social Facilitation of Alcohol Effects and Alcohol Misuse in Young Adults

for Alcohol Consumption

1 location in Los Angeles

Sponsor: University of Southern California

Sex: All·Age: 21 - 28·Accepts healthy volunteers

Code: NCT06627803·Recruiting·Listed Oct 2024

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The K-Map Study, Global Prevalence of KC

for Keratoconus

1 location in Los Angeles

Sponsor: University Hospital, Geneva

Sex: All·Age: 6 - 23·Accepts healthy volunteers

Code: NCT03115710·Recruiting·Listed Apr 2017

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Dd-cfDNA and Treg in Prediction of Kidney Transplant Acute Rejection

for Acute Rejection of Renal Transplant

1 location in Loma Linda

Sponsor: Loma Linda University

Sex: All·Age: 18+

Code: NCT05084768·Recruiting·Listed Oct 2021

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Confirming the Effectiveness of Online Guided Self-Help Family-Based Treatment for Adolescent Anorexia Nervosa

for Anorexia Nervosa

1 location in Stanford

Sponsor: Stanford University

Sex: All·Age: 12 - 18

Code: NCT05563649·Recruiting·Listed Oct 2022

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Huntington's Disease Biobank: Advancing Remote Monitoring and Deep Phenotyping

for Huntington Disease

1 location in Palo Alto

Sponsor: Stanford University

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

Code: NCT06941662·Recruiting·Listed Apr 2025

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Incremental Hemodialysis for Veterans in the First Year of Dialysis (IncHVets)

for Chronic Kidney Disease (CKD) Stage 5

Sites in Long Beach, West Los Angeles +4 more locations

Sponsor: VA Office of Research and Development

Sex: All·Age: 18+

Code: NCT05465044·Recruiting·Listed Jul 2022

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Low-Dose Naltrexone for the Treatment of Complex Regional Pain Syndrome

for Complex Regional Pain Syndrome

1 location in Palo Alto

Sponsor: Stanford University

Sex: All·Age: 18 - 70

Code: NCT02502162·Recruiting·Listed Jul 2015

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Evaluating a New Mental Health Group for Asians and Asian Americans

for Mental Health Issue

1 location in Palo Alto

Sponsor: Stanford University

Sex: All·Age: 18+

Code: NCT06185959·Recruiting·Listed Dec 2023

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The Pediatric Anesthesia Quality Improvement Project

for Surgery

Sites in Los Angeles, Palo Alto +35 more locations

Sponsor: The Society for Pediatric Anesthesia

Sex: All·Age: Up to 21

Code: NCT00674388·Recruiting·Listed May 2008

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The Effect of Hyperoxia on Ventilation During Recovery From General Anesthesia

for Ventilatory Depression

1 location in Stanford

Sponsor: Stanford University

Sex: All·Age: 18 - 70

Code: NCT05379673·Recruiting·Listed May 2022

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Suramin for the Treatment of Autism Trial: KZ101 in a Male Pediatric Population With Autism Spectrum Disorder (ASD)

for Autism Spectrum Disorder (ASD)

Sites in Orange +2 more locations

Sponsor: Children's Hospital of Orange County

Sex: Male·Age: 5 - 14

Code: NCT06866275·Phase 2·Recruiting·Listed Mar 2025

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Feasibility Study of Oral Ketamine Versus Placebo for the Treatment of Anxiety in Patients With Pancreatic Cancer

for Anxiety

1 location in Los Angeles

Sponsor: Cedars-Sinai Medical Center

Sex: All·Age: 18+

Code: NCT05086250·EARLY_Phase 1·Recruiting·Listed Oct 2021

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