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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Bladder EpiCheck Product Development Study

for Suspicion of Bladder Cancer

2 locations incl. San Diego

Sponsor: Nucleix Ltd.

Sex: All·Age: 22+

Code: NCT07514143·Recruiting

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Clinical Trial to Evaluate the Safety and Immunogenicity of Hiltonol, Poly-ICLC-adjuvanted CD40.HIVRI.Env (VRIPRO) in Adult Participants Who Previously Participated in HVTN 706

for HIV Infections

7 locations incl. San Francisco

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

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

Code: NCT06665646·Phase 1·Recruiting

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A Study to Test Whether Nerandomilast Helps People With Lungfibrosis Related to Rheumatic Diseases

for Interstitial Lung Diseases

Drug: Nerandomilast

33 locations incl. Birmingham

Sponsor: Boehringer Ingelheim

Sex: All·Age: 18+

Code: NCT06806592·Phase 3·Recruiting

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Tart Cherry and Omega-3's for Aromatase Inhibitor Musculoskeletal Symptoms

for Breast Cancer

2 locations incl. Los Angeles

Sponsor: Philip Chang

Sex: Female·Age: 18+

Code: NCT06123286·EARLY_Phase 1·Recruiting

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An Open Label Clinical Study to Evaluate Tanruprubart (Also Commonly Known as ANX005) in Participants With Guillain-Barré Syndrome (FORWARD Study)

for Guillain-Barre Syndrome

12 locations incl. Phoenix

Sponsor: Annexon, Inc.

Sex: All·Age: 12 - 85

Code: NCT07020819·Phase 3·Recruiting

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A Dose-masked Study of Intravitreal EYE103 in Participants With NVAMD or Macular Edema Following BRVO

for Neovascular Age-Related Macular Degeneration (NVAMD)

49 locations incl. Scottsdale

Sponsor: EyeBiotech Ltd.

Sex: All·Age: 18+

Code: NCT07205887·Phase 2·Recruiting

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A Study of Izalontamab Brengitecan Versus Chemotherapy in Participants With Previously Untreated, Locally Advanced, Recurrent Inoperable, or Metastatic Triple-negative Breast Cancer Ineligible for Anti-PD(L)1 Drugs (IZABRIGHT-Breast01)

for Breast Neoplasms

46 locations incl. Hot Springs

Sponsor: Bristol-Myers Squibb

Sex: All·Age: 18+

Code: NCT06926868·Phase 2, Phase 3·Recruiting

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AMEND TS Early Feasibility Study

for Symptomatic Functional MR 3 or Greater

11 locations incl. Phoenix

Sponsor: Valcare Medical Ltd.

Sex: All·Age: 21+

Code: NCT06951672·Recruiting

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A 16-week Trial to Investigate the Efficacy and Safety of Delgocitinib Cream 20 mg/g in Adult Participants With Mild to Severe Palmoplantar Pustulosis

for Palmoplantar Pustulosis

7 locations incl. Fountain Valley

Sponsor: LEO Pharma

Sex: All·Age: 18+

Code: NCT07013201·Phase 2·Recruiting

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MDMA-Assisted CBT for OCD (MDMA-CBT4OCD Study)

for Obsessive-Compulsive Disorder

1 location in Palo Alto

Sponsor: Carolyn Rodriguez

Sex: All·Age: 18+

Code: NCT05783817·Phase 2·Recruiting

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Coherent Sine Burst Electroporation (CSE) Ablation System US IDE Study for Patients With Atrial Fibrillation

for Atrial Fibrillation (AF)

18 locations incl. Birmingham

Sponsor: Arga Medtech SA

Sex: All·Age: 18 - 80

Code: NCT06784466·Recruiting

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Interoceptive Training Enhanced Mindfulness

for Anxiety Sensitivity

1 location in San Diego

Sponsor: Veterans Medical Research Foundation

Sex: All·Age: 18+

Code: NCT06786572·Recruiting

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Long Covid (LC)-REVITALIZE - A Long Covid Repurposed Drug Study

for Long COVID

1 location in San Diego

Sponsor: Douglas D. Fraser

Sex: All·Age: 18 - 65

Code: NCT06928272·Phase 3·Recruiting

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A Long-Term Study to Learn About The Study Medicine Called Ritlecitinib in Children With Severe Alopecia Areata.

for Severe Alopecia Areata

Drug: Ritlecitinib

18 locations incl. Encinitas

Sponsor: Pfizer

Sex: All·Age: 6 - 14

Code: NCT07029828·Phase 3·Recruiting

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Impact of Two Iron Formulations on Iron Biomarkers and Quality of Life

for Iron Deficiencies

1 location in Carlsbad

Sponsor: Qualia Life Sciences

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

Code: NCT07156526·Not Yet Recruiting

A Study to Evaluate Community-Based Measures to Increase RSV Vaccine Use Among Latino Adults

for Older Adults Without Any Specific Clinical Condition

1 location in San Francisco

Sponsor: University of California, San Francisco

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

Code: NCT07171164·Recruiting

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Acupuncture and Chinese Herbal Medicine for Long COVID

for Long COVID

1 location in Whittier

Sponsor: Southern California University of Health Sciences

Sex: All·Age: 18+

Code: NCT07285707·Recruiting

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A Long Term Follow-up Study of TScan TCR-T Products

for AML

2 locations incl. Duarte

Sponsor: TScan Therapeutics, Inc.

Sex: All·Age: 18 - 110

Code: NCT06976736·Recruiting

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A Study to Test Inavolisib Treatments in Participants With Early-Stage, PIK3CA-Mutated Breast Cancer

for Breast Cancer

1 location in Orange

Sponsor: Hoffmann-La Roche

Sex: Female·Age: 18+

Code: NCT07054190·Phase 2·Recruiting

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Sensor-based Congestion ALert for Events in Peritoneal Dialysis (SCALE-PD)

for Kidney Disease

3 locations incl. Victorville

Sponsor: Bodyport Inc.

Sex: All·Age: 21+

Code: NCT07059962·Recruiting

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Study of Casdatifan and Cabozantinib Versus Placebo and Cabozantinib in Patients With Advanced Clear Cell Renal Cell Carcinoma

for Metastatic Clear Cell Renal Cell Carcinoma

Drug: Cabozantinib

40 locations incl. Gilbert

Sponsor: Arcus Biosciences, Inc.

Sex: All·Age: 18+

Code: NCT07011719·Phase 3·Recruiting

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Validation of Donor-Derived Cell-Free DNA (Dd-cfDNA) for Kidney Transplant Monitoring

for Kidney Transplant Rejection

8 locations incl. Los Angeles

Sponsor: Insight Molecular Diagnostics

Sex: All·Age: 18+

Code: NCT07060716·Recruiting

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Mapping Ibogaine Neural Dynamics in Opioid Use Disorder

for Opioid Use Disorder (OUD)

1 location in Irvine

Sponsor: University of California, Irvine

Sex: All·Age: 21 - 70

Code: NCT07226570·Recruiting

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Study of the Theranostic Pair RYZ811 (Diagnostic) and RYZ801 (Therapeutic) to Identify and Treat Subjects With GPC3+ (Glypican-3) Unresectable HCC

for Hepatocellular Carcinoma (HCC)

13 locations incl. Birmingham

Sponsor: RayzeBio, Inc.

Sex: All·Age: 18+

Code: NCT06726161·Phase 1, Phase 2·Recruiting

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Head to Head Trial of Mailed Cologuard to Mailed FIT

for Colorectal Cancer Screening

1 location in La Jolla

Sponsor: University of California, San Diego

Sex: All·Age: 45 - 49

Code: NCT06931860·Enrolling By Invitation

Randomized Study of an Analgesic Device Enabling Local Anesthetic Delivery and Neuromodulation After Shoulder/Foot Surgery

for Rotator Cuff Tears

1 location in La Jolla

Sponsor: University of California, San Diego

Sex: All·Age: 18+

Code: NCT07052721·Enrolling By Invitation

Intraoperative Imaging of Gastrointestinal Malignancies Using Pafolacianine (CYTALUX™)

for Gastrointestinal Cancer

1 location in Los Angeles

Sponsor: Cedars-Sinai Medical Center

Sex: All·Age: 18+

Code: NCT07124351·Phase 4·Recruiting

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Multivitamin and Mineral Supplementation and Healthy Aging

for Healthy Aging

1 location in La Jolla

Sponsor: University of California, San Diego

Sex: All·Age: 40 - 60·Accepts healthy volunteers

Code: NCT07642869·Recruiting

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A Study to Evaluate the Safety and Efficacy of BGB-16673 Compared to Pirtobrutinib in Adults With Relapsed/Refractory Chronic Lymphocytic Leukemia or Small Lymphocytic Lymphoma

for Chronic Lymphocytic Leukemia

37 locations incl. Birmingham

Sponsor: BeOne Medicines

Sex: All·Age: 18+

Code: NCT06973187·Phase 3·Recruiting

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AB-1005 Long-Term Follow-up Study

for Parkinson's Disease

2 locations incl. San Francisco

Sponsor: AskBio Inc

Sex: All·Age: All ages

Code: NCT07081841·Enrolling By Invitation

A Study to Examine Anktiva for the Treatment of COVID-19.

for Long COVID

1 location in El Segundo

Sponsor: ImmunityBio, Inc.

Sex: All·Age: 18 - 70

Code: NCT07123727·Phase 2·Recruiting

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A Study of GNTI-122 in Adults Recently Diagnosed With T1D

for Type 1 Diabetes (T1D)

10 locations incl. Duarte

Sponsor: GentiBio, Inc

Sex: All·Age: 18 - 55

Code: NCT06919354·Phase 1·Recruiting

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A Study to Evaluate the Safety, Tolerability, and PK of an Injectable Form of KarXT

for Schizophrenia

Drug: KarXT

8 locations incl. Los Alamitos

Sponsor: Bristol-Myers Squibb

Sex: All·Age: 18 - 55

Code: NCT07061288·Phase 1·Recruiting

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Post-Approval Study of the Neuspera Sacral Neuromodulation System

for Urinary Urgency Incontinence

20 locations incl. San Diego

Sponsor: Neuspera Medical, Inc.

Sex: All·Age: 22+

Code: NCT07144813·Recruiting

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Phase 1/2 Dose Finding, Safety and PK Study in Advanced Refractory Solid Tumors

for Prostate Cancer Castration-resistant Prostate Cancer

7 locations incl. San Francisco

Sponsor: MBrace Therapeutics

Sex: All·Age: 18+

Code: NCT07145255·Phase 1, Phase 2·Recruiting

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Phase 2 Study of Inhaled SNG001 in Mechanically Ventilated Patients With Respiratory Viral Infection

for Viral Pneumonia

22 locations incl. Sacramento

Sponsor: Synairgen Research Ltd.

Sex: All·Age: 18+

Code: NCT06999603·Phase 2·Recruiting

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A Study to Assess Adverse Events and Change in Disease Activity in Adult Participants Receiving Intravenously Infused Telisotuzumab Adizutecan Alone or With Standard of Care in Participants With Post Adjuvant Circulating Tumor DNA Positive Colorectal Cancer and No Radiographic Evidence of Disease

for Colorectal Cancer

22 locations incl. Huntsville

Sponsor: AbbVie

Sex: All·Age: 18+

Code: NCT07023289·Phase 2·Recruiting

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A Study to Assess How Effective and Safe NVD003 is for Treating Patients With Congenital Pseudarthrosis of the Tibia.

for Congenital Pseudarthrosis of Tibia

4 locations incl. Phoenix

Sponsor: Novadip Biosciences

Sex: All·Age: Up to 17

Code: NCT07112443·Phase 3·Recruiting

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OPI-NXYDLD-303 Safety and Efficacy of Phentolamine Ophthalmic Solution in Keratorefractive Surgery Participants With Decreased Mesopic Visual Acuity

for Vision Loss Night

23 locations incl. Chandler

Sponsor: Ocuphire Pharma, Inc.

Sex: All·Age: 18+

Code: NCT07140783·Phase 3·Recruiting

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Improving Sexual Health in Gynecological Cancer Patients

for Gynaecologic Cancer

1 location in Los Angeles

Sponsor: Cedars-Sinai Medical Center

Sex: Female·Age: 30 - 65

Code: NCT07144566·Not Yet Recruiting