Paid Clinical Trials in California

California has 6,520 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: June 19, 2026.

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6,520 clinical trials

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Multi-Institutional IMPACT Validation

for Facial Injuries

3 locations incl. Sacramento

Sponsor: University of Tennessee

Sex: All·Age: 18+

Code: NCT06850857·Enrolling By Invitation

Computational Assessment of GABA Receptor Modulation in PTSD

for Stress Disorders, Post-Traumatic

1 location in San Diego

Sponsor: VA Office of Research and Development

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

Code: NCT06852469·Phase 4·Recruiting

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Study Comparing AAA817+ARPI Versus Standard of Care in Adult Participants With PSMA-positive mCRPC

for Prostate Cancer

25 locations incl. Palo Alto

Sponsor: Novartis Pharmaceuticals

Sex: Male·Age: 18 - 100

Code: NCT06855277·Phase 3·Recruiting

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Context-Aware Mobile Intervention for Social Recovery in Serious Mental Illness (R33)

for Schizophenia Disorder

1 location in San Diego

Sponsor: University of California, San Diego

Sex: All·Age: 18 - 65

Code: NCT06865937·Recruiting

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Effect of Magnesium on Neuromonitoring

for Spine

1 location in San Francisco

Sponsor: University of California, San Francisco

Sex: All·Age: 18+

Code: NCT06975072·Phase 4·Recruiting

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Aspirin Dose Escalation for the Prevention of Recurrent Preterm Delivery Trial

for Preterm Delivery

14 locations incl. Birmingham

Sponsor: The George Washington University Biostatistics Center

Sex: Female·Age: 14+·Accepts healthy volunteers

Code: NCT06980025·Phase 3·Recruiting

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Neural Control and Mechanosensation in Spine Muscle

for Low Back Pain and Core Muscle

1 location in La Jolla

Sponsor: University of California, San Diego

Sex: All·Age: 18 - 60·Accepts healthy volunteers

Code: NCT07003802·Enrolling By Invitation

Accelerated Intermittent Theta Burst Stimulation for Adolescent and Young Adult Depression With Elevated Suicide Risk

for Major Depressive Disorder (MDD)

1 location in Sacramento

Sponsor: University of California, Davis

Sex: All·Age: 15 - 25

Code: NCT07025720·Recruiting

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Effectiveness of Qualia Testosterone Supplementation on Testosterone Levels

for Testosterone

1 location in Carlsbad

Sponsor: Qualia Life Sciences

Sex: Male·Age: 28 - 65·Accepts healthy volunteers

Code: NCT07028255·Not Yet Recruiting

Functional Outcomes in Ulcerative Colitis Patients With Ileal Pouch Anal Anastomosis Treated With High Intensity Focused Electromagnetic Stimulation

for Fecal Incontinence

1 location in Los Angeles

Sponsor: Cedars-Sinai Medical Center

Sex: All·Age: 18+

Code: NCT07034443·Not Yet Recruiting

Sustained Auricular Nerve Stimulation for PVC Suppression

for Premature Ventricular Complexes

1 location in La Jolla

Sponsor: University of California, San Diego

Sex: All·Age: 18+

Code: NCT07093034·Enrolling By Invitation

Machine Learning Prediction of Possible Central Line Associated Blood Stream Infections and Rate of Reduction

for Central Line Associated Blood Stream Infections (CLABSI)

19 locations incl. Anchorage

Sponsor: Swedish Medical Center

Sex: All·Age: 18+

Code: NCT07108660·Recruiting

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BETA - Pilot Study

for Diabetes (DM)

1 location in San Francisco

Sponsor: 4YouandMe

Sex: All·Age: 18+

Code: NCT07192861·Enrolling By Invitation

An MHealth Intervention to Improve HIV Prevention Service Engagement Among Racially Diverse Women Who Use Drugs

for HIV Infections

1 location in La Jolla

Sponsor: University of California, San Diego

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

Code: NCT06068283·Not Yet Recruiting

Assessment of Flow in Cerebrospinal Fluid Shunts With a Wireless Thermal Anisotropy Measurement Device in Asymptomatic Patients

for Hydrocephalus

1 location in San Francisco

Sponsor: Rhaeos, Inc.

Sex: All·Age: 2+

Code: NCT06410885·Not Yet Recruiting

A Study to Evaluate the Safety of a Delivery Device for Administering LCTOPC1 in Participants With Spinal Cord Injury

for Spinal Cord Injury Cervical

2 locations incl. Downey

Sponsor: Lineage Cell Therapeutics, Inc.

Sex: All·Age: 18 - 65

Code: NCT06841770·Phase 1·Recruiting

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FIT-ATOMIC Exercise Feasibility Trial

for Neuroinflammatory Diseases

2 locations incl. La Jolla

Sponsor: The Hospital for Sick Children

Sex: All·Age: 11 - 25

Code: NCT06870968·Not Yet Recruiting

A Study of IPN10200 for the Treatment of Cervical Dystonia in Adults

for Cervical Dystonia

9 locations incl. Tucson

Sponsor: Ipsen

Sex: All·Age: 18 - 80

Code: NCT06937931·Phase 2·Recruiting

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A Study of Disitamab Vedotin in Adults With HER2 Expressing Advanced Breast Cancer

for Breast Cancer

134 locations incl. Daphne

Sponsor: Pfizer

Sex: All·Age: 18+

Code: NCT06966453·Phase 1, Phase 2·Recruiting

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A Clinical Study of Sacituzumab Tirumotecan (Sac-TMT, MK-2870) in People With Breast Cancer (MK-2870-032)

for Breast Neoplasms

53 locations incl. Gilbert

Sponsor: Merck Sharp & Dohme LLC

Sex: All·Age: 18+

Code: NCT06966700·Phase 3·Recruiting

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Efficacy and Safety of MSC-NTF (NurOwn) in Participants With Early Symptomatic ALS and Moderate Disease Presentation in ALS (ENDURANCE STUDY)

for Amyotrophic Lateral Sclerosis (ALS)

15 locations incl. Phoenix

Sponsor: Brainstorm-Cell Therapeutics

Sex: All·Age: 18 - 75

Code: NCT06973629·Phase 3·Not Yet Recruiting

Efficacy and Safety of IMVT-1402 in Adult Participants With Primary Sjogren's Disease With Moderate to Severe Systemic Disease Activity

for Primary Sjögren's Syndrome

Drug: IMVT-1402

29 locations incl. Covina

Sponsor: Immunovant Sciences GmbH

Sex: All·Age: 18 - 74

Code: NCT06979531·Phase 2·Recruiting

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Rapid Diagnostics for Genetic Disorders in Neonates

for Acid Base Disorder

1 location in San Diego

Sponsor: Sharp HealthCare

Sex: All·Age: 1 Day - 6 Months

Code: NCT07005700·Not Yet Recruiting

A Study to Evaluate the Safety and Efficacy of Oral Nizubaglustat (AZ-3102) in Late-infantile and Juvenile Forms of Niemann-Pick Type C Disease, GM1 Gangliosidosis or GM2 Gangliosidosis

for Niemann-Pick Type C Disease

5 locations incl. Oakland

Sponsor: Azafaros B.V.

Sex: All·Age: 4+

Code: NCT07054515·Phase 3·Recruiting

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A Study to Evaluate the Safety and Efficacy of Oral Nizubaglustat (AZ-3102) in Late-infantile and Juvenile Forms of GM1 Gangliosidosis or GM2 Gangliosidosis

for Gangliosidoses, GM2

5 locations incl. Oakland

Sponsor: Azafaros B.V.

Sex: All·Age: 4+

Code: NCT07082543·Phase 3·Recruiting

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A Study to Evaluate the Safety and Efficacy of Oral Nizubaglustat (AZ-3102) in Late-infantile and Juvenile Forms of Niemann-Pick Type C Disease (NPC)

for Niemann-Pick Type C Disease

5 locations incl. Oakland

Sponsor: Azafaros B.V.

Sex: All·Age: 4+

Code: NCT07082725·Phase 3·Recruiting

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Open-Label Extension Protocol to SNK01-AD01 Study

for Alzheimer Disease

1 location in Glendale

Sponsor: NKGen Biotech, Inc.

Sex: All·Age: 40 - 85

Code: NCT07228078·Phase 2·Recruiting

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Response Adapted Neoadjuvant Therapy in Gastroesophageal Cancers (RANT-GC Trial)

for Gastroesophageal Adenocarcinoma

1 location in Orange

Sponsor: University of California, Irvine

Sex: All·Age: 18+

Code: NCT05733689·Phase 1·Recruiting

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PUL-042 Treatment in Patients With Parainfluenza Virus (PIV), Human Metapneumovirus (hMPV) or Respiratory Syncytial Virus (RSV)

for Hematologic Malignancies

11 locations incl. Duarte

Sponsor: Pulmotect, Inc.

Sex: All·Age: 18+

Code: NCT06665100·Phase 2·Recruiting

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E-Mindfulness Approaches for Living After Breast Cancer

for Breast Cancer

332 locations incl. Phoenix

Sponsor: NRG Oncology

Sex: All·Age: 18 - 50

Code: NCT06748222·Phase 3·Recruiting

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The Multicenter Stress Cardiac Magnetic Resonance Quantitative Perfusion Imaging in the United States Study

for Ischemic Heart Disease (IHD)

12 locations incl. San Francisco

Sponsor: Brigham and Women's Hospital

Sex: All·Age: 35 - 85

Code: NCT06854458·Recruiting

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A Research Study Comparing Different Doses of CDR132L With Placebo on the Structure and Function of the Heart in People With Heart Failure With Preserved Ejection Fraction and Left Ventricular Hypertrophy

for Heart Failure

29 locations incl. Birmingham

Sponsor: Novo Nordisk A/S

Sex: All·Age: 40 - 84

Code: NCT06979362·Phase 2·Recruiting

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A Clinical Trial Evaluating the Efficacy and Safety of Leflutrozole on Testicular Function

for Semen Quality

4 locations incl. North Hollywood

Sponsor: ReproNovo Aps

Sex: Male·Age: 18 - 49

Code: NCT06993155·Phase 2·Recruiting

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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

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Efficacy and Safety of TYRA-300 in Participants With FGFR3 Altered Low Grade, Intermediate Risk Non-Muscle Invasive Bladder Cancer

for Low-grade NMIBC

30 locations incl. Homewood

Sponsor: Tyra Biosciences, Inc

Sex: All·Age: 18+

Code: NCT06995677·Phase 2·Recruiting

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A Study to Assess the Efficacy and Safety of Emicizumab in Participants With Type 3 Von Willebrand Disease

for Von Willebrand Disease, Type 3

4 locations incl. Sacramento

Sponsor: Hoffmann-La Roche

Sex: All·Age: 1 Month+

Code: NCT06998524·Phase 3·Recruiting

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Ataciguat for Slowing the Progression of Moderate Calcific Aortic Valve Stenosis: A Randomized, Placebo Controlled Study

for Moderate Aortic Valve Stenosis

Drug: Ataciguat

66 locations incl. Birmingham

Sponsor: Kardigan, Inc.

Sex: All·Age: 50+

Code: NCT07001800·Phase 2, Phase 3·Recruiting

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A Study to Evaluate the Long-term Safety, Tolerability, and Efficacy of Subcutaneous Sonelokimab in Participants With Moderate to Severe Hidradenitis Suppurativa

for Hidradenitis Suppurativa

49 locations incl. Birmingham

Sponsor: MoonLake Immunotherapeutics AG

Sex: All·Age: 12+

Code: NCT07007637·Phase 3·Enrolling By Invitation

A Study to Investigate the Effect of AZD6793 in Participants With Moderate to Very Severe Chronic Obstructive Pulmonary Disease

for Chronic Obstructive Pulmonary Disease (COPD)

86 locations incl. Birmingham

Sponsor: AstraZeneca

Sex: All·Age: 40+

Code: NCT07082738·Phase 2·Recruiting

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Mirikizumab Administered at the Same Time as Tirzepatide in Adult Participants With Moderately to Severely Active Ulcerative Colitis and Obesity or Overweight: Phase 3b Study

for Ulcerative Colitis

Drug: Tirzepatide

37 locations incl. Dothan

Sponsor: Eli Lilly and Company

Sex: All·Age: 18 - 70

Code: NCT06937086·Phase 3·Recruiting

Apply to this trial