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.

Filter results

Filter results

State

City

Recruitment status

Phase

Study type

Intervention

Condition

Sex

Age

Healthy volunteers only

5,286 clinical trials

↓ Download CSV

Lung Macrophage Populations and Functions in Chronic Obstructive Pulmonary Disease (COPD)-Susceptible Smokers

for Copd

1 location in San Francisco

Sponsor: University of California, San Francisco

Sex: All·Age: 40 - 75·Accepts healthy volunteers

Code: NCT04722835·Recruiting·Listed Jan 2021

Apply to this trial

The Use of Butyrate Therapy in Pediatric Ulcerative Colitis

for Ulcerative Colitis

1 location in Los Angeles

Sponsor: Children's Hospital Los Angeles

Sex: All·Age: 7 - 21

Code: NCT05218850·Phase 2·Recruiting·Listed Feb 2022

Apply to this trial

Psoriatic Immune Response to Tildrakizumab

for Psoriasis Vulgaris

1 location in San Francisco

Sponsor: University of California, San Francisco

Sex: All·Age: 18 - 75

Code: NCT05390515·Phase 4·Recruiting·Listed May 2022

Apply to this trial

Investigating the Use of Intravenous Tranexamic Acid in Gender Affirming Mastectomy

for Postoperative Hematoma

1 location in San Francisco

Sponsor: University of California, San Francisco

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

Code: NCT05794321·Phase 2·Recruiting·Listed Apr 2023

Apply to this trial

Molecular Signatures of Cutaneous Dupilumab Response

for Atopic Dermatitis

Drug: Dupilumab

1 location in San Francisco

Sponsor: University of California, San Francisco

Sex: All·Age: 18+

Code: NCT05858619·Phase 4·Recruiting·Listed May 2023

Apply to this trial

Immune Spatial Features of Guselkumab Cutaneous Response

for Psoriasis of Scalp

Drug: Guselkumab

1 location in San Francisco

Sponsor: University of California, San Francisco

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

Code: NCT05858632·Phase 4·Recruiting·Listed May 2023

Apply to this trial

Correction of Psoriatic T Cell Signatures by Deucravacitinib

for Psoriasis Vulgaris

Drug: Deucravacitinib

1 location in San Francisco

Sponsor: University of California, San Francisco

Sex: All·Age: 18 - 75

Code: NCT05858645·Phase 4·Recruiting·Listed May 2023

Apply to this trial

iMOVE: Virtual Reality PT Versus Traditional PT

for Physical Health

1 location in Palo Alto

Sponsor: Stanford University

Sex: All·Age: 10 - 25

Code: NCT05876156·Recruiting·Listed May 2023

Apply to this trial

Analysis of Lumbar Spine Stenosis Specimens for Identification of Transthyretin Cardiac Amyloidosis

for Lumbar Spinal Stenosis

Sites in Beverly Hills +4 more locations

Sponsor: Columbia University

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

Code: NCT06034405·Recruiting·Listed Sep 2023

Apply to this trial

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

for Pancreatic Carcinoma

Sites in La Jolla +17 more locations

Sponsor: SWOG Cancer Research Network

Sex: All·Age: 18+

Code: NCT06807437·Phase 3·Recruiting·Listed Feb 2025

Apply to this trial

HCRN Core Data Project: Characterizing Patient Populations in the Hydrocephalus Clinical Research Network (HCRN)

for Pediatric Hydrocephalus

Sites in Los Angeles +10 more locations

Sponsor: University of Utah

Sex: All·Age: Up to 18

Code: NCT00670735·Recruiting·Listed May 2008

Apply to this trial

Evaluation of a Long Versus Short Clomid Protocol for Controlled Ovarian Stimulation

for Infertility, Female

1 location in Pasadena

Sponsor: University of Southern California

Sex: Female·Age: 18 - 45

Code: NCT06701071·Phase 4·Recruiting·Listed Nov 2024

Apply to this trial

Manual Lymphatic Drainage Breast Massage in Breast Cancer Patients After Breast Conserving Surgery

for Anatomic Stage 0 Breast Cancer AJCC v8

1 location in Los Angeles

Sponsor: University of Southern California

Sex: Female·Age: 18+

Code: NCT06297265·Recruiting·Listed Mar 2024

Apply to this trial

The Cardiovascular Consequences of Sleep Apnea Plus COPD (Overlap Syndrome)

for Obstructive Sleep Apnea

1 location in La Jolla

Sponsor: University of California, San Diego

Sex: All·Age: 40 - 79

Code: NCT05237505·Phase 2·Recruiting·Listed Feb 2022

Apply to this trial

Intracerebroventricular Administration of CD19-CAR T Cells (CD19CAR-CD28-CD3zeta-EGFRt-expressing Tn/Mem T-lymphocytes) for the Treatment of Central Nervous System Lymphoma

for Central Nervous System Lymphoma

1 location in Duarte

Sponsor: City of Hope Medical Center

Sex: All·Age: 18+

Code: NCT05625594·Phase 1·Recruiting·Listed Nov 2022

Apply to this trial

Clinician Satisfaction With the VERABAND™

for Chronic Low-back Pain

Sites in La Jolla +2 more locations

Sponsor: University of Michigan

Sex: All·Age: 18 - 85

Code: NCT06080464·Recruiting·Listed Oct 2023

Apply to this trial

Effectiveness of Two Aspirin Doses for Prevention of Hypertensive Disorders of Pregnancy: ASPIRIN TRIAL

for Hypertensive Disorders of Pregnancy

Sites in Los Angeles, San Francisco +14 more locations

Sponsor: Ohio State University

Sex: Female·Age: 14 - 35

Code: NCT06468202·Phase 4·Recruiting·Listed Jun 2024

Apply to this trial

Study of Revumenib, Azacitidine, and Venetoclax in Pediatric and Young Adult Patients With Refractory or Relapsed Acute Myeloid Leukemia

for Refractory Acute Myeloid Leukemia

Drug: Venetoclax

Sites in San Diego +9 more locations

Sponsor: St. Jude Children's Research Hospital

Sex: All·Age: 1 - 30

Code: NCT06177067·Phase 1·Recruiting·Listed Dec 2023

Apply to this trial

Defining ctDNA Metrics in Posttransplant Lymphoproliferative Disorder (PTLD)

for Lymphoma

Sites in Stanford +1 more location

Sponsor: Jennifer Amengual

Sex: All·Age: 15+

Code: NCT06954805·Phase 2·Recruiting·Listed May 2025

Apply to this trial

Diagnostic DNA Methylation Signature in Diagnosing Thyroid Cancer After Fine-Needle Aspiration in Patients With Thyroid Nodules

for Thyroid Gland Nodule

1 location in Duarte

Sponsor: City of Hope Medical Center

Sex: All·Age: 19+

Code: NCT03676647·Recruiting·Listed Sep 2018

Apply to this trial

Phase 1 Pilot of a Pragmatic Trial of EAET for Veterans With Chronic Pain

for Musculoskeletal Pain

1 location in Los Angeles

Sponsor: University of California, Los Angeles

Sex: All·Age: 18+

Code: NCT07218757·Recruiting·Listed Oct 2025

Apply to this trial

Clinical Evaluation of Low Contrast Visual Performance and Low Light Phenomena in Patients With Various Intraocular Lens Implants

for Dysphotopsia

1 location in Bakersfield

Sponsor: Dr. Daniel H. Chang, MD

Sex: All·Age: 22+

Code: NCT07213167·Recruiting·Listed Oct 2025

Apply to this trial

Belumosudil to Block Chronic Lung Allograft Dysfunction (CLAD) in High Risk Lung Transplant Recipients

for Lung Transplant

Sites in Los Angeles, Palo Alto +9 more locations

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

Sex: All·Age: 12+

Code: NCT06476132·Phase 2·Recruiting·Listed Jun 2024

Apply to this trial

Surveillance Colonoscopy in Older Adults: The SurvOlderAdults Study

for Colorectal Cancer

Sites in San Diego & West Los Angeles

Sponsor: VA Office of Research and Development

Sex: All·Age: 75+

Code: NCT05994482·Recruiting·Listed Aug 2023

Apply to this trial

Golf Recreational Exercise for Enhanced Survivorship in Prostate Cancer Survivors

for Localized Prostate Carcinoma

2 locations in Los Angeles

Sponsor: University of Southern California

Sex: Male·Age: 55 - 85

Code: NCT06500169·Recruiting·Listed Jul 2024

Apply to this trial

Characterization of T-cell Repertoire in Patients With Acute Myeloid Leukemia Undergoing Donor Stem Cell Transplant

for Acute Myeloid Leukemia

1 location in Los Angeles

Sponsor: University of Southern California

Sex: All·Age: 18+

Code: NCT03921047·Recruiting·Listed Apr 2019

Apply to this trial

Randomized Double-Blind Placebo-Controlled Trial EValuating Baricitinib on PERSistent NEurologic and Cardiopulmonary Symptoms of Long COVID

for Long COVID

Drug: Baricitinib

Sites in Los Angeles, San Francisco +15 more locations

Sponsor: Wes Ely

Sex: All·Age: 18+

Code: NCT06631287·Phase 3·Recruiting·Listed Oct 2024

Apply to this trial

Psilocybin Therapy for Depression in Parkinson's Disease

for Parkinson Disease

1 location in San Francisco

Sponsor: Joshua Woolley, MD, PhD

Sex: All·Age: 40 - 80

Code: NCT06455293·Phase 2·Recruiting·Listed Jun 2024

Apply to this trial

A Study of Treatment of Inflammation Before Stem Cell Transplant in People With a Primary Immune Regulatory Disorder (PIRD) and/or an Autoinflammatory Condition

for Primary Immune Regulatory Disorder

Sites in San Francisco +5 more locations

Sponsor: Joseph Oved

Sex: All·Age: All ages

Code: NCT05787574·Phase 2·Recruiting·Listed Mar 2023

Apply to this trial

Liver Cirrhosis Network Rosuvastatin Efficacy and Safety for Cirrhosis in the United States

for Cirrhosis

Sites in Los Angeles, San Francisco +10 more locations

Sponsor: National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)

Sex: All·Age: 18 - 75

Code: NCT05832229·Phase 2·Recruiting·Listed Apr 2023

Apply to this trial

Confronting Cancer as a Community

for Colorectal Carcinoma

2 locations in Los Angeles

Sponsor: University of Southern California

Sex: All·Age: 18+

Code: NCT06063928·Recruiting·Listed Oct 2023

Apply to this trial

Personalized Health Self-Management Training for Colorectal Cancer Survivors

for Colorectal Cancer

1 location in Los Angeles

Sponsor: University of Southern California

Sex: All·Age: 18+

Code: NCT05984589·Recruiting·Listed Aug 2023

Apply to this trial

Testing the Addition of Sunitinib Malate to Lutetium Lu 177 Dotatate (Lutathera) in Pancreatic Neuroendocrine Tumors

for Metastatic Pancreatic Neuroendocrine Tumor

Sites in Orange, Irvine +6 more locations

Sponsor: National Cancer Institute (NCI)

Sex: All·Age: 18+

Code: NCT05687123·Phase 1·Recruiting·Listed Jan 2023

Apply to this trial

Tovorafenib for Treatment of Craniopharyngioma in Children and Young Adults

for Craniopharyngioma, Child

Sites in San Francisco, San Diego +13 more locations

Sponsor: Sabine Mueller, MD, PhD

Sex: All·Age: 1 - 39

Code: NCT05465174·Phase 2·Recruiting·Listed Jul 2022

Apply to this trial

Parasitic Ulcer Treatment Trial

for Acanthamoeba Keratitis

Sites in San Francisco +12 more locations

Sponsor: Jeremy Keenan, MD, MPH

Sex: All·Age: 8+

Code: NCT06213649·Phase 3·Recruiting·Listed Jan 2024

Apply to this trial

The Osteoporotic Fracture Classification-based Scoring System for Treatment Decision in Thoracolumbar Osteoporotic Fractures

for Osteoporotic Fractures

Sites in San Francisco +1 more location

Sponsor: AO Foundation, AO Spine

Sex: All·Age: 50+

Code: NCT07027306·Recruiting·Listed Jun 2025

Apply to this trial

Safety of RSV Preventive Monoclonal Antibody

for Fever

Sites in Oakland +4 more locations

Sponsor: Duke University

Sex: All·Age: 6 Weeks - 30 Weeks·Accepts healthy volunteers

Code: NCT07158814·Phase 4·Recruiting·Listed Sep 2025

Apply to this trial

Pharmacogenomics of Asparaginase Induced Hepatotoxicity

for Acute Lymphoblastic Leukemia

2 locations in Los Angeles

Sponsor: University of Southern California

Sex: All·Age: 18+

Code: NCT03568266·Recruiting·Listed Jun 2018

Apply to this trial

Collecting Blood and Tissue Sample Donations for Research for HIV/AIDS-Related Cancers

for Anal Carcinoma

Sites in San Francisco, La Jolla +6 more locations

Sponsor: AIDS Malignancy Consortium

Sex: All·Age: 18+

Code: NCT05663502·Recruiting·Listed Dec 2022

Apply to this trial

AU409 for the Treatment of Advanced Primary Liver Cancers or Solid Tumor With Liver Metastatic Disease

for Advanced Cholangiocarcinoma

2 locations in Los Angeles

Sponsor: University of Southern California

Sex: All·Age: 18+

Code: NCT05791448·Phase 1·Recruiting·Listed Mar 2023

Apply to this trial