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.

Filter results

Filter results

State

City

Phase

Study type

Intervention

Recruitment status

Condition

Sex

Age

Healthy volunteers only

6,520 clinical trials

↓ Download CSV

Comparing The Safety And Efficacy Of DEFENCATH® In Reducing Central-Line Bloodstream Infections (CLABSIs) In Adults Receiving Total Parenteral Nutrition Through A Central Venous Catheter (CVC)

for Central Line Associated Blood Stream Infections (CLABSI)

17 locations incl. Los Angeles

Sponsor: CorMedix

Sex: All·Age: 18+

Code: NCT06822426·Phase 3·Recruiting

Apply to this trial

A proof-of Concept Study to Assess Safety and Tolerability of HM15421/GC1134A in Patients With Fabry Disease

for Fabry Disesase

6 locations incl. Los Angeles

Sponsor: GC Biopharma Corp

Sex: All·Age: 18+

Code: NCT06858397·Phase 1, Phase 2·Recruiting

Apply to this trial

Study of GS-0151 in Participants With Rheumatoid Arthritis

for Rheumatoid Arthritis

18 locations incl. Anniston

Sponsor: Gilead Sciences

Sex: All·Age: 18 - 75

Code: NCT06902519·Phase 1·Recruiting

Apply to this trial

MAGIC Ruxolitinib for aGVHD

for Acute Graft-versus-host Disease

Drug: Ruxolitinib

14 locations incl. Duarte

Sponsor: John Levine

Sex: All·Age: 18+

Code: NCT06936566·Phase 2·Recruiting

Apply to this trial

Randomized Withdrawal Study in Patients With Schizophrenia

for Schizophrenia

22 locations incl. Rogers

Sponsor: Vanda Pharmaceuticals

Sex: All·Age: 18 - 65

Code: NCT06961968·Phase 3·Recruiting

Apply to this trial

A Long-term Safety and Efficacy Study Evaluating APG777 in Atopic Dermatitis

for Atopic Dermatitis

22 locations incl. Fountain Valley

Sponsor: Apogee Therapeutics, Inc.

Sex: All·Age: 18+

Code: NCT07003425·Phase 2·Recruiting

Apply to this trial

Supportive Training After Cardiac Rehabilitation Including Virtual Engagement

for Adherence to Physical Activity After Completing Cardiac Rehabilitation (CR) in Older Adults

1 location in San Francisco

Sponsor: University of California, San Francisco

Sex: All·Age: 55 - 100

Code: NCT06701188·Recruiting

Apply to this trial

A Study to Learn About How Changing Therapy From Emicizumab to Marstacimab Affects People With the Severe Hemophilia A.

for Severe Hemophilia A

3 locations incl. Los Angeles

Sponsor: Pfizer

Sex: Male·Age: 12 - 74

Code: NCT06703606·Phase 1·Recruiting

Apply to this trial

Intratumoral Delivery of Viral Replicon (saRNA) Particles Expressing IL-12 in Head and Neck Cancer

for Head and Neck Cancers- Squamous Cell

1 location in Stanford

Sponsor: VLP Therapeutics

Sex: All·Age: 18+

Code: NCT06736379·Phase 1·Recruiting

Apply to this trial

A Clinical Study of Ifinatamab Deruxtecan (I-DXd) in People With Metastatic Prostate Cancer (MK-2400-001)

for Prostate Cancer

50 locations incl. Phoenix

Sponsor: Merck Sharp & Dohme LLC

Sex: Male·Age: 18+

Code: NCT06925737·Phase 3·Recruiting

Apply to this trial

Moving Beyond Inflammation as a Therapeutic Target for Crohn's Disease

for Crohn Disease (CD)

3 locations incl. Beverly Hills

Sponsor: Washington University School of Medicine

Sex: All·Age: 18 - 80

Code: NCT06976853·Phase 2·Recruiting

Apply to this trial

Outcomes for VersaWrap in Achilles Tendon Repair

for Achilles Tendon Injury

3 locations incl. Sacramento

Sponsor: Research Source

Sex: All·Age: 18 - 90·Accepts healthy volunteers

Code: NCT07025252·Enrolling By Invitation

Using CircuLating Tumor DNA to Risk Adapt Post-Operative Therapy for HPV-associated Oropharyngeal Cancer

for Oropharyngeal Cancer

4 locations incl. Beverly Hills

Sponsor: Zachary Zumsteg

Sex: All·Age: 18+

Code: NCT06445114·Phase 2·Recruiting

Apply to this trial

Observation Study in Patients Age 0-5 Years With LAMA2-related Congenital Muscular Dystrophy

for LAMA2-MD \(Merosin Deficient Congenital Muscular Dystrophy, MDC1A\)

14 locations incl. Los Angeles

Sponsor: Nationwide Children's Hospital

Sex: All·Age: Up to 5

Code: NCT06503367·Recruiting

Apply to this trial

Clinical Trial of Upfront Haploidentical or Unrelated Donor BMT to Restore Normal Hematopoiesis in Aplastic Anemia

for Severe Aplastic Anemia

25 locations incl. Birmingham

Sponsor: Medical College of Wisconsin

Sex: All·Age: 3 - 75

Code: NCT06517641·Phase 2·Recruiting

Apply to this trial

TBI Rehabilitation and Activation in Veterans

for Traumatic Brain Injury

2 locations incl. Palo Alto

Sponsor: Northern California Institute of Research and Education

Sex: All·Age: 50 - 89

Code: NCT06562127·Recruiting

Apply to this trial

Acoramidis Transthyretin Amyloidosis Prevention Trial in the Young (ACT-EARLY) Study in Asymptomatic Carriers of a Pathogenic TTR Variant

for Amyloidosis

Drug: Acoramidis

39 locations incl. La Jolla

Sponsor: Eidos Therapeutics, a BridgeBio company

Sex: All·Age: 18 - 75

Code: NCT06563895·Phase 3·Recruiting

Apply to this trial

National Program to Overcome Pelvic Pain studY (POPPY)

for Chronic Pelvic Pain Syndrome (CPPS)

1 location in San Francisco

Sponsor: University of California, San Francisco

Sex: Female·Age: 18+

Code: NCT06778070·Recruiting

Apply to this trial

CNP-103 in Adolescent and Adult Subjects Ages 12-35 With Recently Diagnosed (Within 6 Months) Stage 3 Type 1 Diabetes (T1D)

for Type 1 Diabetes Mellitus

30 locations incl. Tucson

Sponsor: COUR Pharmaceutical Development Company, Inc.

Sex: All·Age: 12 - 35

Code: NCT06783309·Phase 1, Phase 2·Recruiting

Apply to this trial

Phase 1 Study of ACE-232 to Treat Patients With Metastatic Castration-Resistant Prostate Cancer

for Prostate Cancer (Adenocarcinoma)

8 locations incl. La Jolla

Sponsor: Acerand Therapeutics (Hong Kong) Limited

Sex: Male·Age: 18+

Code: NCT06801236·Phase 1·Recruiting

Apply to this trial

A Study to Assess the Efficacy and Safety of Induction Therapy With Afimkibart (RO7790121) in Participants With Moderately to Severely Active Crohn's Disease

for Moderately to Severely Active Crohns Disease

Drug: Afimkibart

50 locations incl. Glendale

Sponsor: Hoffmann-La Roche

Sex: All·Age: 16 - 80

Code: NCT06819891·Phase 3·Recruiting

Apply to this trial

A Study of ZL-1310 in Participants With Selected Solid Tumors

for Solid Tumors

12 locations incl. San Francisco

Sponsor: Zai Lab (Shanghai) Co., Ltd.

Sex: All·Age: 18+

Code: NCT06885281·Phase 1, Phase 2·Recruiting

Apply to this trial

Long-term Safety and Efficacy Evaluation of Lunsekimig in Adult Participants With Chronic Rhinosinusitis With Nasal Polyps (CRSwNP) Who Completed a Previous Lunsekimig CRSwNP Study

for Chronic Rhinosinusitis With Nasal Polyps

Drug: Lunsekimig

9 locations incl. La Jolla

Sponsor: Sanofi

Sex: All·Age: All ages

Code: NCT06914908·Phase 2·Enrolling By Invitation

An Open-Label Pilot Study of Qualia Senolytic Supplementation for the Attenuation of Systemic Inflammatory Cytokines

for Inflammation

1 location in Carlsbad

Sponsor: Qualia Life Sciences

Sex: All·Age: 45 - 79·Accepts healthy volunteers

Code: NCT06953518·Not Yet Recruiting

Sodium in the Skin and Atopic Dermatitis

for Eczema

2 locations incl. San Francisco

Sponsor: University of California, San Francisco

Sex: All·Age: 50+·Accepts healthy volunteers

Code: NCT06998446·Recruiting

Apply to this trial

Onyx™ Liquid Embolic IDE Clinical Study

for Peripheral Arterial Hemorrhage

18 locations incl. Phoenix

Sponsor: Medtronic Endovascular

Sex: All·Age: 22+

Code: NCT06742801·Recruiting

Apply to this trial

Lanreotide Versus Placebo Before Surgery to Prevent a Surgical Complication Called a Pancreatic Fistula

for Pancreatic Carcinoma

118 locations incl. Birmingham

Sponsor: SWOG Cancer Research Network

Sex: All·Age: 18+

Code: NCT06807437·Phase 3·Recruiting

Apply to this trial

Sensory Adapted Dental Environments to Enhance Oral Care for Children With and Without Dental Fear and Anxiety

for Dental Fear and Anxiety

1 location in Los Angeles

Sponsor: University of Southern California

Sex: All·Age: 6 - 12·Accepts healthy volunteers

Code: NCT06912854·Recruiting

Apply to this trial

Study of Biodistribution, Metabolism, Excretion and Brain Uptake 18F-JSS20-183A

for Tauopathies

2 locations incl. San Francisco

Sponsor: University of Pennsylvania

Sex: All·Age: 40 - 85

Code: NCT06932809·EARLY_Phase 1·Recruiting

Apply to this trial

EXoPERT EMERALD Clinical Study

for Breast Cancer

9 locations incl. Long Beach

Sponsor: EXoPERT

Sex: All·Age: 45+·Accepts healthy volunteers

Code: NCT07186296·Recruiting

Apply to this trial

Screening for Prostate Cancer Using High Resolution Micro-ultrasound Versus Multiparametric Magnetic Resonance Imaging.

for Prostate Cancer Screening

2 locations incl. Los Angeles

Sponsor: University of Alberta

Sex: Male·Age: 50 - 70·Accepts healthy volunteers

Code: NCT06626022·Phase 3·Recruiting

Apply to this trial

A First-in-human Study of EPI-321 in Facioscapulohumeral Muscular Dystrophy

for Facioscapulohumeral Muscular Dystrophy

5 locations incl. Los Angeles

Sponsor: Epicrispr Biotechnologies, Inc.

Sex: All·Age: 18 - 75

Code: NCT06907875·Phase 1, Phase 2·Recruiting

Apply to this trial

A Study to Learn About the Effects of Felzartamab Infusions on Adults With Immunoglobulin A Nephropathy (IgAN)

for Immunoglobulin A Nephropathy (IgAN)

28 locations incl. Little Rock

Sponsor: Biogen

Sex: All·Age: 18+

Code: NCT06935357·Phase 3·Recruiting

Apply to this trial

NBI-1117568-SCZ3029: Evaluation of NBI-1117568 in Inpatient Adults With Schizophrenia

for Schizophrenia

Drug: NBI-1117568

21 locations incl. Bryant

Sponsor: Neurocrine Biosciences

Sex: All·Age: 18 - 65

Code: NCT06963034·Phase 3·Recruiting

Apply to this trial

Lung Cancer Screening of Family Members of Patients With Mutation-Driven Lung Cancer

for Lung Cancer

1 location in Orange

Sponsor: University of California, Irvine

Sex: All·Age: 18 - 80

Code: NCT07062172·Recruiting

Apply to this trial

Prebiotic Effects of California Grapes on Gut Health and Cardiometabolic Health in Overweight Men and Women

for Arterial Stiffness

1 location in Davis

Sponsor: University of California, Davis

Sex: All·Age: 45 - 70·Accepts healthy volunteers

Code: NCT06544954·Recruiting

Apply to this trial

Visual Performance of Clareon PanOptix vs. a Comparable Multifocal Intraocular Lens

for Age Related Cataracts

3 locations incl. Torrance

Sponsor: Argus Research Center, Inc.

Sex: All·Age: All ages

Code: NCT07006428·Recruiting

Apply to this trial

A Study of Elritercept to Treat Anemia in Adults With Very Low, Low, or Intermediate Risk Myelodysplastic Syndromes (MDS) Who Need Regular Blood Transfusions

for Myelodysplastic Syndromes

23 locations incl. Duarte

Sponsor: Takeda

Sex: All·Age: 18+

Code: NCT06499285·Phase 3·Recruiting

Apply to this trial

A Study to Assess the Safety and Clinical Activity of Azer-cel in Participants With B-cell Mediated Autoimmune Disorders

for B-cell Mediated Autoimmune Disorders

8 locations incl. La Jolla

Sponsor: TG Therapeutics, Inc.

Sex: All·Age: 18+

Code: NCT06680037·Phase 1·Recruiting

Apply to this trial

A Study to Compare TAK-881 and HYQVIA in Adults With Chronic Inflammatory Demyelinating Polyradiculoneuropathy (CIDP)

for Chronic Inflammatory Demyelinating Polyradiculoneuropathy (CIDP)

16 locations incl. Scottsdale

Sponsor: Takeda

Sex: All·Age: 18+

Code: NCT06747351·Phase 3·Recruiting

Apply to this trial