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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A Study Observing the Long-term, Effectiveness and Safety of Odevixibat (Bylvay) in Patients With Alagille Syndrome (ALGS) Who Are Receiving Ongoing Treatment

for Alagille Syndrome

10 locations incl. Los Angeles

Sponsor: Ipsen

Sex: All·Age: All ages

Code: NCT06850038·Recruiting

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An Interventional Study of Infigratinib in Children With Hypochondroplasia

for Hypochondroplasia

7 locations incl. Oakland

Sponsor: QED Therapeutics, a BridgeBio company

Sex: All·Age: 3 - 18

Code: NCT06873035·Phase 2, Phase 3·Enrolling By Invitation

Auryon Atherectomy System With Standard Balloon Angioplasty Versus Standard Balloon Angioplasty Alone

for Peripheral Arterial Diseases

9 locations incl. Phoenix

Sponsor: Angiodynamics, Inc.

Sex: All·Age: All ages

Code: NCT06777901·Phase 4·Recruiting

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A Study to Investigate the Safety, Tolerability, and Efficacy of AZD0120 in Adults With Refractory SLE

for Lupus Erythematosus, Systemic

15 locations incl. San Francisco

Sponsor: AstraZeneca

Sex: All·Age: 18 - 70

Code: NCT06897930·Phase 1, Phase 2·Recruiting

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Enhanced Recovery After Surgery (ERAS) for Complicated Appendicitis

for Appendicitis Acute

1 location in Los Angeles

Sponsor: Cedars-Sinai Medical Center

Sex: All·Age: 18+

Code: NCT06948071·Recruiting

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Evaluating the Effects of Tasimelteon vs. Placebo in Treating Pediatric Insomnia

for Insomnia Disorder

21 locations incl. Dothan

Sponsor: Vanda Pharmaceuticals

Sex: All·Age: 2 - 17

Code: NCT06953869·Phase 3·Recruiting

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Using Clinical Decision Support to Provide Social Risk-Informed Care for Opioid Use Disorder in the Emergency Department

for Opioid Use Disorder

1 location in San Francisco

Sponsor: University of California, San Francisco

Sex: All·Age: 18+

Code: NCT06872190·Recruiting

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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

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Testing the Addition of an Anti-Cancer Drug, Abemaciclib, to the Usual Chemotherapy Treatment (5-Fluorouracil) for Metastatic, Refractory Colorectal Cancer

for Metastatic Microsatellite Stable Colorectal Carcinoma

8 locations incl. Irvine

Sponsor: National Cancer Institute (NCI)

Sex: All·Age: 18+

Code: NCT06654037·Phase 1·Recruiting

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Vedolizumab Plus Post-transplant Cyclophosphamide and Short Course Tacrolimus for the Prevention of Graft Versus Host Disease in Patients Undergoing Allogeneic Hematopoietic Cell Transplantation After Reduced Intensity Conditioning

for Acute Lymphoblastic Leukemia

1 location in Duarte

Sponsor: City of Hope Medical Center

Sex: All·Age: 18 - 80

Code: NCT06815003·Phase 2·Recruiting

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Pivotal Study of Voro Urologic Scaffold

for Radical Prostatectomy

19 locations incl. Phoenix

Sponsor: Levee Medical, Inc.

Sex: Male·Age: 45+

Code: NCT06873581·Phase 3·Recruiting

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A Study of MT-4561 in Patients With Various Advanced Solid Tumors

for Head and Neck Squamous Cell Carcinoma (HNSCC)

4 locations incl. Los Angeles

Sponsor: Tanabe Pharma America, Inc.

Sex: All·Age: 18+

Code: NCT06943521·Phase 1, Phase 2·Recruiting

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Full-Avoidance vs. Permissive/Regulated Drinking & Outcomes On Fibrillation

for Atrial Fibrillation (AF)

2 locations incl. San Francisco

Sponsor: University of California, San Francisco

Sex: All·Age: 21+

Code: NCT06754176·Recruiting

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The THRIVE Study: Teaching Healthy Regulation in Individuals & Vulnerable Environments

for Adverse Childhood Experiences

1 location in Irvine

Sponsor: University of California, Irvine

Sex: All·Age: 11 - 14·Accepts healthy volunteers

Code: NCT06821035·Recruiting

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A Study on the Immune Response and Safety of an Investigational Chickenpox Vaccine and a Marketed Measles, Mumps and Rubella Vaccine When Administered as Intramuscular Injection to Healthy Children 12 to 15 Months of Age

for Chickenpox

13 locations incl. Tucson

Sponsor: GlaxoSmithKline

Sex: All·Age: 12 Months - 15 Months·Accepts healthy volunteers

Code: NCT06855160·Phase 3·Recruiting

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Fertilo In Vitro Research Study and Trial

for In Vitro Maturation of Oocytes

13 locations incl. Clovis

Sponsor: Gameto, Inc.

Sex: Female·Age: 18 - 35·Accepts healthy volunteers

Code: NCT06858111·Phase 3·Recruiting

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A Study to Evaluate the Clinical Outcomes of Efgartigimod PH20 SC in Adults With New-onset Generalized Myasthenia Gravis (gMG)

for New Onset Generalized Myasthenia Gravis (gMG)

Drug: Efgartigimod PH20 SC

18 locations incl. La Jolla

Sponsor: argenx

Sex: All·Age: 18+

Code: NCT06909214·Phase 4·Recruiting

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An Extension Study of Subjects Who Received an Avalyn Inhaled Antifibrotic Agent (SAIL)

for Progressive Pulmonary Fibrosis

23 locations incl. Birmingham

Sponsor: Avalyn Pharma Inc.

Sex: All·Age: 18+

Code: NCT06951217·Phase 2·Recruiting

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A Study of ETHIZIA Versus SURGICEL Original in Controlling Soft Tissue Bleeding During Open Surgery

for Hemostasis

6 locations incl. Los Angeles

Sponsor: Ethicon, Inc.

Sex: All·Age: 22+

Code: NCT06664788·Recruiting

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Master Protocol for Evaluating Multiple Infection Diagnostics for Ciprofloxacin-Resistant Neisseria Gonorrhoeae

for Neisseria Gonorrheae Infection

8 locations incl. San Francisco

Sponsor: Duke University

Sex: All·Age: All ages

Code: NCT06815536·Recruiting

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A Phase 3 Study of Revaccination in Subsequent Pregnancies With Bivalent RSV Vaccine and Duration of Protection of a Single Dose

for RSV Infection

81 locations incl. Birmingham

Sponsor: Pfizer

Sex: All·Age: 0+·Accepts healthy volunteers

Code: NCT06866405·Phase 3·Recruiting

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Long-Term Study to Assess the Safety and Tolerability of NBI-1065845 as an Adjunctive Treatment in Participants With Major Depressive Disorder (MDD)

for Major Depressive Disorder

Drug: NBI-1065845

40 locations incl. Huntsville

Sponsor: Neurocrine Biosciences

Sex: All·Age: 18+

Code: NCT06966401·Phase 3·Recruiting

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BEAD-T1D: Building the Evidence to Address Disengagement in Type 1 Diabetes

for Type 1 Diabetes

1 location in Stanford

Sponsor: Stanford University

Sex: All·Age: 12+

Code: NCT05488119·Recruiting

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Multicenter Trial of ECMO in Children With Severe Cardiac Failure Using the Cardiohelp System

for Heart Failure

5 locations incl. Palo Alto

Sponsor: Stanford University

Sex: All·Age: 0 - 16

Code: NCT06080074·Phase 2·Recruiting

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Integrating Nonpharmacologic Strategies for Pain With Inclusion, Respect, and Equity

for Chronic Pain

2 locations incl. San Francisco

Sponsor: University of California, San Francisco

Sex: All·Age: 18+

Code: NCT06183281·Recruiting

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A Study Using Risk Factors to Determine Treatment for Children With Favorable Histology Wilms Tumors (FHWT)

for Stage I Mixed Cell Type Kidney Wilms Tumor

146 locations incl. Birmingham

Sponsor: Children's Oncology Group

Sex: All·Age: Up to 30

Code: NCT06401330·Phase 3·Recruiting

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Filipino Family Health Initiative 1.0

for Depression

1 location in Pasadena

Sponsor: Kaiser Permanente

Sex: All·Age: 8+·Accepts healthy volunteers

Code: NCT06569303·Recruiting

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Benefits of Choir for Older Adults With Unaddressed Hearing Loss (WP2)

for Hearing Loss, Age-Related

1 location in Los Angeles

Sponsor: Toronto Metropolitan University

Sex: All·Age: 60+

Code: NCT06580847·Recruiting

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Phase 1/2 Study of PYX-201 in Combination With Pembrolizumab in Advanced Solid Tumors

for Advanced Solid Tumors

11 locations incl. San Diego

Sponsor: Pyxis Oncology, Inc

Sex: All·Age: 18+

Code: NCT06795412·Phase 1, Phase 2·Recruiting

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PTM-101 in Pancreatic Ductal Adenocarcinoma (PDAC)

for Pancreatic Ductal Adenocarcinoma

6 locations incl. Newport Beach

Sponsor: PanTher Therapeutics

Sex: All·Age: 18+

Code: NCT06673017·Phase 1·Recruiting

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A Study to Learn About the Long-Term Health of Adult Participants From a Previous Study of a New Melanoma Treatment

for Melanoma

8 locations incl. Los Angeles

Sponsor: Regeneron Pharmaceuticals

Sex: All·Age: 18+

Code: NCT06848088·Phase 2·Enrolling By Invitation

A Study to Assess Adverse Events and Change in Disease Activity of Intravenously (IV) Infused ABBV-324 in Adult Participants With Hepatocellular Cancer (HCC) or Squamous-Cell Non-Small Cell Lung Cancer (LUSC)

for Hepatocellular Cancer

10 locations incl. Duarte

Sponsor: AbbVie

Sex: All·Age: 18+

Code: NCT06858813·Phase 1·Recruiting

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Registry on NeVa VS for CerebraL VAsospasm ManagemenT in Post SAH PatiEnts

for Cerebral Vasospasm

16 locations incl. Burbank

Sponsor: Vesalio

Sex: All·Age: 22+

Code: NCT06893588·Recruiting

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Defining ctDNA Metrics in Posttransplant Lymphoproliferative Disorder (PTLD)

for Lymphoma

2 locations incl. Stanford

Sponsor: Jennifer Amengual

Sex: All·Age: 15+

Code: NCT06954805·Phase 2·Recruiting

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Small Intestinal Bacterial Overgrowth (SIBO) in Pancreatic Adenocarcinoma (PDAC)

for Pancreatic Adenocarcinoma

1 location in Los Angeles

Sponsor: Cedars-Sinai Medical Center

Sex: All·Age: 18+

Code: NCT06988150·Recruiting

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Dextenza Versus Topical Steroid Eye Drops for Postoperative Management Following Corneal Crosslinking

for Keratoconus

3 locations incl. San Francisco

Sponsor: Maanasa Indaram, MD

Sex: All·Age: 13 - 64

Code: NCT06235567·Phase 1, Phase 2·Enrolling By Invitation

Study of Targeted Therapies for the Treatment of Adult Participants With Active Psoriatic Arthritis

for Psoriatic Arthritis

16 locations incl. Huntington Beach

Sponsor: AbbVie

Sex: All·Age: 18+

Code: NCT06865105·Phase 2·Recruiting

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A Clinical Study of Zilovertamab Vedotin (MK-2140) Plus Rituximab Plus Cyclophosphamide, Doxorubicin, and Prednisone (R-CHP) Versus Polatuzumab Vedotin Plus R-CHP in People With Diffuse Large B-cell Lymphoma (DLBCL) (MK-2140-011/waveLINE-011)

for Lymphoma, Large B-Cell, Diffuse

Drug: Polatuzumab Vedotin

70 locations incl. Mobile

Sponsor: Merck Sharp & Dohme LLC

Sex: All·Age: 18+

Code: NCT06890884·Phase 2·Recruiting

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Relacorilant in Combination With Different Treatment Regimens in Patients With Gynecological Cancers

for Ovarian Cancer

16 locations incl. Birmingham

Sponsor: Corcept Therapeutics

Sex: Female·Age: 18+

Code: NCT06906341·Phase 2·Recruiting

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Targeted Investigation of Microbiome 2 Treat Atopic Dermatitis (TIME-2)

for Atopic Dermatitis

8 locations incl. San Diego

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

Sex: All·Age: 6+

Code: NCT06504160·Phase 1·Recruiting

Apply to this trial