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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California MEPS Hub

for HIV Prevention

Sites in Oakland & Riverside

Sponsor: University of California, Los Angeles

Sex: Male·Age: 18 - 59·Accepts healthy volunteers

Code: NCT07433985·Recruiting·Listed Feb 2026

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A Study of Psychedelics in Healthy Older Adults With Low Well-being

for Anhedonia in Healthy Volunteers

1 location in San Francisco

Sponsor: Jennifer Mitchell

Sex: All·Age: 50 - 85·Accepts healthy volunteers

Code: NCT07386730·Phase 1·Recruiting·Listed Feb 2026

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Simplified, Scalable, 24-hour Adaptive DBS in Parkinson's Disease

for PD - Parkinson's Disease

1 location in San Francisco

Sponsor: University of California, San Francisco

Sex: All·Age: 18+

Code: NCT07398157·Recruiting·Listed Feb 2026

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Preoperative Hemodialysis Timing in Patients With End-Stage Kidney Disease: The POD-ESKD Pilot Trial

for Perioperative Management

1 location in Stanford

Sponsor: Stanford University

Sex: All·Age: 18+

Code: NCT07339202·Recruiting·Listed Jan 2026

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Study to Enable New Diagnostics for Pulmonary Microbes in People With CF

for Cystic Fibrosis (CF)

Sites in La Jolla +8 more locations

Sponsor: Chris Goss

Sex: All·Age: 16+

Code: NCT07312734·Recruiting·Listed Dec 2025

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Early Introduction and Sustained Ingestion (EISI) Using Two Educational Opportunities in Infants

for Food Allergy

1 location in Stanford

Sponsor: Stanford University

Sex: All·Age: 4 Months - 11 Months·Accepts healthy volunteers

Code: NCT07321522·Recruiting·Listed Jan 2026

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Testing the Effect of Teclistamab on Recurrent Plasmablastic Lymphoma

for Recurrent Plasmablastic Lymphoma

Drug: Teclistamab

1 location in Duarte

Sponsor: National Cancer Institute (NCI)

Sex: All·Age: 18+

Code: NCT07332507·Phase 1·Recruiting·Listed Jan 2026

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A First-in-Patient Study to Evaluate the Safety and Tolerability of HB-2121 as a Diagnostic for Celiac Disease

for Celiac Disease

1 location in Stanford

Sponsor: Nielsen Fernandez-Becker

Sex: All·Age: 18+

Code: NCT07377565·Phase 1·Recruiting·Listed Jan 2026

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Community Health Worker Navigation to Support Mental Health

for Stress

1 location in San Francisco

Sponsor: University of California, Riverside

Sex: All·Age: 18 - 120

Code: NCT07387146·Recruiting·Listed Feb 2026

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Exploring Clinical Utility of Wearables for the Bladder in Pelvic Health Physical Therapy Clinics

for Postpartum Bladder Dysfunction

1 location in San Francisco

Sponsor: University of California, San Francisco

Sex: All·Age: 18+

Code: NCT07451106·Recruiting·Listed Mar 2026

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Advanced Imaging Techniques for Evaluating the Tumor Immune Microenvironment in Glioblastoma Patients

for Glioblastoma

1 location in Los Angeles

Sponsor: Jonsson Comprehensive Cancer Center

Sex: All·Age: 18+

Code: NCT07461948·Phase 3·Recruiting·Listed Mar 2026

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PREcision MEDicine In Achalasia (PREMEDIA)

for Type I Achalasia

Sites in La Jolla +12 more locations

Sponsor: Northwestern University

Sex: All·Age: 18+

Code: NCT07293650·Phase 3·Recruiting·Listed Dec 2025

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PREcision MEDicine In Achalasia (PREMEDIA) - Cohort

for Type III Achalasia

Sites in La Jolla +12 more locations

Sponsor: Northwestern University

Sex: All·Age: 18+

Code: NCT07293689·Recruiting·Listed Dec 2025

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Postpartum Continuous Glucose Monitoring for Type 2 Diabetes Mellitus Risk Evaluation in Patients With Gestational Diabetes Mellitus: POSTPOD Trial

for Gestational Diabetes Mellitus in Pregnancy

1 location in Los Angeles

Sponsor: University of California, Los Angeles

Sex: Female·Age: 18+

Code: NCT07449039·Recruiting·Listed Mar 2026

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Dopamine vs. Norepinephrine for Hypotension in Neonates With Pulmonary Hypertension (DONE)

for Hypotension and Shock

1 location in Sacramento

Sponsor: University of California, Davis

Sex: All·Age: Up to 28 Days

Code: NCT07322133·Phase 4·Recruiting·Listed Jan 2026

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Riluzole For Preventing Cognitive Dysfunction in Ca Pts Receiving Chemo (REFOCUS): Pilot Trial

for Breast Cancer

1 location in Orange

Sponsor: University of California, Irvine

Sex: All·Age: 18+

Code: NCT07447050·Phase 2·Recruiting·Listed Mar 2026

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Testing Mechanisms of Virtual Reality Exposure Therapy for Social Anxiety

for no Interaction VRET

1 location in Palo Alto

Sponsor: Palo Alto University

Sex: All·Age: 18+

Code: NCT07437872·Recruiting·Listed Feb 2026

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Increasing Germline Genetic Testing for Patients With Cancer

for Hereditary Pancreatic Cancer

Sites in Los Angeles +9 more locations

Sponsor: Josh Peterson

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

Code: NCT07307664·Recruiting·Listed Dec 2025

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Digital vs. Parent Modeled Toothbrushing

for Plaque Reduction

1 location in Los Angeles

Sponsor: University of Southern California

Sex: All·Age: 3 - 6·Accepts healthy volunteers

Code: NCT07441148·Recruiting·Listed Feb 2026

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Virtual Reality (VR) for Interventional Radiology (IR) Procedures

for Pain

1 location in Los Angeles

Sponsor: Children's Hospital Los Angeles

Sex: All·Age: 8+

Code: NCT07427862·Recruiting·Listed Feb 2026

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Open-label Placebo for Pain Management in Adolescents and Young Adults Undergoing Bernese Periacetabular Osteotomy

for Periacetabular Osteotomy

1 location in San Francisco

Sponsor: University of California, San Francisco

Sex: All·Age: 13 - 40

Code: NCT07373210·Recruiting·Listed Jan 2026

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Force Sensor Study

for Laryngeal Disease

1 location in San Francisco

Sponsor: University of California, San Francisco

Sex: All·Age: 18+

Code: NCT07434583·Recruiting·Listed Feb 2026

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APPRAISE: Assessment of Pain and Posterior Synechiae Reduction With Atropine, an Investigation of Post-Surgical Eyes

for Eye Disorders

1 location in San Francisco

Sponsor: University of California, San Francisco

Sex: All·Age: 18+

Code: NCT07434635·Phase 4·Recruiting·Listed Feb 2026

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Incidence of Long-TeRm Atrial Fibrillation After Acute Illness

for Atrial Fibrillation (AF)

1 location in La Jolla

Sponsor: University of California, San Diego

Sex: All·Age: 18+

Code: NCT07434674·Recruiting·Listed Feb 2026

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Human Laboratory Study of Apremilast for Alcohol Use Disorder

for Alcohol Use Disorder

Drug: Apremilast

Sites in Los Angeles +2 more locations

Sponsor: National Institute on Alcohol Abuse and Alcoholism (NIAAA)

Sex: All·Age: 21+

Code: NCT07325266·Phase 2·Recruiting·Listed Jan 2026

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Epcoritamab, Rituximab, Gemcitabine and Oxaliplatin (R-GemOx) as Salvage Therapy Before Autologous Stem Cell Transplant for the Treatment of Relapsed/Refractory Diffuse Large B-Cell Lymphoma

for Recurrent Diffuse Large B-Cell Lymphoma, Not Otherwise Specified

Drug: Epcoritamab

Sites in Duarte +2 more locations

Sponsor: City of Hope Medical Center

Sex: All·Age: 18+

Code: NCT07365306·Phase 2·Recruiting·Listed Jan 2026

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Testing the Addition of Cemiplimab (REGN2810) to Chemotherapy Treatment Given Prior to Surgery in Patients With Sinonasal Squamous Cell Carcinoma

for Sinonasal Squamous Cell Carcinoma

Drug: Cemiplimab

Sites in Orange, Irvine +2 more locations

Sponsor: National Cancer Institute (NCI)

Sex: All·Age: 18+

Code: NCT07281417·Phase 2·Recruiting·Listed Dec 2025

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Accurate Point of Care Liver Disease Diagnostics (Phase 2)

for MASLD

1 location in La Jolla

Sponsor: University of California, San Diego

Sex: All·Age: 18+

Code: NCT07518784·Recruiting·Listed Apr 2026

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Olutasidenib With Azacitidine Followed by Olutasidenib Maintenance for the Treatment of IDH1-mutated Acute Myeloid Leukemia in Patients With Prior Treatment With Venetoclax Plus a Hypomethylating Agent

for Acute Myeloid Leukemia

Drug: Venetoclax

1 location in Sacramento

Sponsor: University of California, Davis

Sex: All·Age: 18+

Code: NCT07304011·Phase 2·Recruiting·Listed Dec 2025

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A Culturally Informed Patient Navigation Program (CFPN) to Reduce Delays Between Diagnosis and Treatment in American Indian and Alaska Native Cancer Patients Living in Rural California

for Hematopoietic and Lymphatic System Neoplasm

Sites in Los Angeles & Bishop

Sponsor: University of Southern California

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

Code: NCT07332312·Recruiting·Listed Jan 2026

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Central Vein Sign in Multiple Sclerosis Extension Study

for Multiple Sclerosis

Sites in Los Angeles +2 more locations

Sponsor: The Cleveland Clinic

Sex: All·Age: 18 - 65

Code: NCT07424027·Recruiting·Listed Feb 2026

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Early Intervention for Postpartum PTSD: Comparing Written Exposure and Capnometry-Guided Breathing Therapy

for Written Exposure Therapy

Sites in Palo Alto +1 more location

Sponsor: Stanford University

Sex: Female·Age: 18+

Code: NCT07342530·Recruiting·Listed Jan 2026

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Restoring Facial Volume After GLP-1 Weight Loss With Radiesse

for Volume Loss (Soft Tissue Ptosis or Atrophy )

1 location in Pasadena

Sponsor: Kalpna Kay Durairaj, MD, FACS

Sex: All·Age: 21 - 65

Code: NCT07419854·Phase 4·Recruiting·Listed Feb 2026

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Non-Invasive Detection of Right-to-Left Cardiac Shunts

for Patent Foramen Ovale (PFO)

1 location in La Jolla

Sponsor: Scripps Health

Sex: All·Age: 18+

Code: NCT07420400·Recruiting·Listed Feb 2026

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MAPT Protocol: Fixation Versus Arthroplasty Surgical Treatments for Early Recovery After HIP Fracture (FASTER-HIP)

for Femoral Neck Fractures

Sites in Los Angeles, Irvine +11 more locations

Sponsor: University of Southern California

Sex: All·Age: 60+

Code: NCT07244211·Recruiting·Listed Nov 2025

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Bacteriophages for Adults With Cystic Fibrosis and Chronic Achromobacter Lung Infection

for Cystic Fibrosis (CF)

Sites in San Diego +1 more location

Sponsor: Ghady Haidar

Sex: All·Age: 18+

Code: NCT07275905·Phase 1·Recruiting·Listed Dec 2025

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Blood Pressure Care for Advancing Real-World Evidence (BPCARE)

for Hypertension

1 location in San Diego

Sponsor: University of California, San Diego

Sex: All·Age: 21+

Code: NCT07398391·Recruiting·Listed Feb 2026

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Sleep Learning Education and Empowerment for Older Korean Immigrants

for Insomnia Chronic

1 location in Los Angeles

Sponsor: University of California, Los Angeles

Sex: All·Age: 60+

Code: NCT07387406·Recruiting·Listed Feb 2026

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Remotely-supervised Neuromodulation in PPA

for Primary Progressive Aphasia(PPA)

Sites in San Francisco +1 more location

Sponsor: Maya Henry

Sex: All·Age: 40+

Code: NCT07260253·Recruiting·Listed Dec 2025

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Duvelisib Maintenance for the Treatment of Peripheral T-Cell Lymphomas

for Follicular Helper T-Cell Lymphoma

1 location in Duarte

Sponsor: City of Hope Medical Center

Sex: All·Age: 18+

Code: NCT07293403·Phase 2·Recruiting·Listed Dec 2025

Apply to this trial