Paid Clinical Trials in California

California has 6,497 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 12, 2026.

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6,497 clinical trials

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Sensory Substitution and Brain Plasticity Following Vision Loss

for Blindness

2 locations incl. Palo Alto

Sponsor: Stanford University

Sex: All·Age: 8 - 85·Accepts healthy volunteers

Code: NCT07450677·Not Yet Recruiting

Real-World Evaluation of Compl-AI for Predicting Early Medication Dropout in Opioid Use Disorder Treatment

for Opioid Use Disorder

2 locations incl. San Diego

Sponsor: Tools4Patient

Sex: All·Age: 18+

Code: NCT07456930·Not Yet Recruiting

Early Brainwave Biomarkers for Personalized Neuromodulation in Treatment-resistant Depression

for Major Depressive Disorder

1 location in Stanford

Sponsor: Stanford University

Sex: All·Age: 18 - 65

Code: NCT07528157·Not Yet Recruiting

A Phase 2 Clinical Study to Evaluate the Efficacy and Safety of Frevecitinib (KN-002) in Patients With Severe Asthma

for Severe Asthma

Drug: Frevecitinib

15 locations incl. Lancaster

Sponsor: Kinaset Therapeutics Inc

Sex: All·Age: 18 - 75

Code: NCT07532265·Phase 2·Not Yet Recruiting

A Study of JZP3507 (ONC206) in Recurrent Grade 2 or 3 Meningioma

for Meningioma

Drug: JZP3507

5 locations incl. San Francisco

Sponsor: Jazz Pharmaceuticals

Sex: All·Age: 18+

Code: NCT07533942·Phase 2·Not Yet Recruiting

Impact of Fluciclovine (18F) PET (Positron Emission Tomography) on the Management of Prostate Cancer Following Negative or Equivocal PSMA (Prostate-Specific Membrane Antigen) PET Imaging at the Time of Biochemical Recurrence

for Prostate Cancer

6 locations incl. San Diego

Sponsor: Blue Earth Diagnostics

Sex: Male·Age: 18+

Code: NCT07569926·Phase 4·Not Yet Recruiting

A Phase I Trial of S-Adenosylmethionine (SAMe) for Chemoprevention of Colorectal Adenomas

for Colorectal Cancer (Diagnosis)

1 location in Los Angeles

Sponsor: Jun Gong, MD

Sex: All·Age: 18+

Code: NCT07582003·Phase 1·Not Yet Recruiting

Pilot Study on EXPAREL as an Intra-articular Posteromedial Surgeon Administered (IPSA) Block vs. Local Infiltration Analgesia in Knee Replacement Surgery

for Total Knee Arthroplasty

1 location in Los Angeles

Sponsor: Cedars-Sinai Medical Center

Sex: All·Age: 18+

Code: NCT07584915·Phase 4·Enrolling By Invitation

AB801 in Combination With Chemotherapy and Immunotherapy for the Treatment of Patients With Borderline Resectable, Locally Advanced or Metastatic Cholangiocarcinoma or Pancreatic Cancer

for Borderline Resectable Pancreatic Ductal Adenocarcinoma

1 location in Los Angeles

Sponsor: Jonsson Comprehensive Cancer Center

Sex: All·Age: 18+

Code: NCT07619313·Phase 1·Not Yet Recruiting

nVNS, CBD, and SoC for Persistent Post-Traumatic Headache

for Persistent Post Traumatic Headache

8 locations incl. Scottsdale

Sponsor: American Society of Pain and Neuroscience, Inc.

Sex: All·Age: 18 - 75

Code: NCT07624279·Phase 2·Not Yet Recruiting

IO Vancomycin Administration in TKA

for Total Knee Arthroplasty

1 location in San Diego

Sponsor: University of California, San Diego

Sex: All·Age: 18+

Code: NCT07633418·Phase 4·Not Yet Recruiting

Phenotype Guided Vasoactive Medication During Kidney Transplantation

for Kidney Transplant

1 location in Los Angeles

Sponsor: Jennifer Cutler

Sex: All·Age: 18+

Code: NCT07633600·Phase 4·Not Yet Recruiting

Self-directed Mobile Mindfulness to Address ICU Survivors' Psychological Distress: the Lift RCT

for Critical Illness

3 locations incl. Los Angeles

Sponsor: Duke University

Sex: All·Age: 18+

Code: NCT07634419·Not Yet Recruiting

Immune and Cognitive Benefits of Mango Intake in Young Adults

for Cognition

1 location in Loma Linda

Sponsor: Loma Linda University

Sex: All·Age: 18 - 30·Accepts healthy volunteers

Code: NCT06229262·Not Yet Recruiting

Di-PKD: A Pilot Trial of Dietary Intervention in Patients With Autosomal Dominant Polycystic Kidney Disease

for Autosomal Dominant Polycystic Kidney Disease (ADPKD)

1 location in Loma Linda

Sponsor: Loma Linda University

Sex: All·Age: 18 - 65

Code: NCT06786260·Not Yet Recruiting

Patient Reported Experiences With Sparing External Oblique Fascia Vs Standard Inguinal Orchiectomy

for Testicular Cancer

1 location in Loma Linda

Sponsor: Loma Linda University

Sex: Male·Age: 18+

Code: NCT06828185·Recruiting

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Pain Perception During Intra-Articular Knee Joint Injection: What is the Effect of Needle Gauge and the Use of Ethyl Chloride?

for Osteoarthritis (OA) of the Knee

1 location in Sacramento

Sponsor: University of California, Davis

Sex: All·Age: 40 - 89·Accepts healthy volunteers

Code: NCT06865170·Phase 4·Not Yet Recruiting

Quadriceps Strengthening ACL Reconstruction

for ACL Tear

1 location in Sunnyvale

Sponsor: Stanford University

Sex: All·Age: 13 - 17

Code: NCT07015541·Recruiting

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Impact of Seed Cycling on Menstrual Regularity, Dysmenorrhea, and Premenstrual Symptoms

for Menstruation Disorders

1 location in Loma Linda

Sponsor: Loma Linda University

Sex: Female·Age: 18 - 45

Code: NCT07052500·Not Yet Recruiting

Effectiveness of Toothpaste Tablets on Plaque, Gingival Health and Caries Experiences

for Gingival Inflammation

2 locations incl. Loma Linda

Sponsor: Loma Linda University

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

Code: NCT07124533·Phase 3·Not Yet Recruiting

Valproic AcId for Traumatic BRAin INjury Trial

for Moderate Traumatic Brain Injury (TBI)

8 locations incl. Birmingham

Sponsor: Northwestern University

Sex: All·Age: 18 - 65

Code: NCT07166393·Phase 2, Phase 3·Not Yet Recruiting

Methamphetamine Use Disorder Support in Heart Failure Pilot Study

for Heart Failure

2 locations incl. Los Angeles

Sponsor: University of Southern California

Sex: All·Age: 18+

Code: NCT07211724·Not Yet Recruiting

Duraplasty for Acute Traumatic Spinal Cord Injury

for Spinal Cord Injury, Acute

1 location in San Francisco

Sponsor: University of California, San Francisco

Sex: All·Age: 18 - 80

Code: NCT07280351·Enrolling By Invitation

A Study of Imlunestrant (LY3484356) in Premenopausal Women With Estrogen Receptor-Positive (ER+) Human Epidermal Growth Factor Receptor 2 Negative (HER2-) Early Breast Cancer

for Breast Neoplasms

25 locations incl. Birmingham

Sponsor: Eli Lilly and Company

Sex: Female·Age: 18+

Code: NCT07287098·Phase 2·Not Yet Recruiting

Tensi+ for Treating Overactive Bladder

for Overactive Bladder (OAB)

2 locations incl. Beverly Hills

Sponsor: Stimuli Technology

Sex: All·Age: 22+

Code: NCT07300904·Not Yet Recruiting

Signatera Assessment in Early-Stage Endometrial Cancer

for Endometrial Cancer

9 locations incl. Birmingham

Sponsor: Natera, Inc.

Sex: Female·Age: 18+

Code: NCT07339384·Not Yet Recruiting

Health Enhanced Artery Risk Tracking With Widespread Implementation and Screening Effort in ASCVD (HEARTWISE-ASCVD)

for Atherosclerotic Cardiovascular Disease (ASCVD)

6 locations incl. Los Angeles

Sponsor: Stanford University

Sex: All·Age: 18 - 74

Code: NCT07355894·Not Yet Recruiting

A Study of Amicidin-β Topical Solution for Patients With Surgical or Traumatic Wound Infections

for Surgical Wound Infection

4 locations incl. Torrance

Sponsor: Macro Biologics, Inc.

Sex: All·Age: 18 - 79

Code: NCT07379684·Phase 1·Recruiting

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KQB198 in Combination With Imatinib in Participants With Advanced/Metastatic GIST in 1st Line Setting

for GIST - Gastrointestinal Stromal Tumor

8 locations incl. Los Angeles

Sponsor: Kumquat Biosciences Inc.

Sex: All·Age: 18+

Code: NCT07406633·Phase 2·Recruiting

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Linking Youth to Pre-Exposure Prophylaxis (PrEP) Services

for HIV

4 locations incl. San Francisco

Sponsor: Westat

Sex: All·Age: 13 - 24·Accepts healthy volunteers

Code: NCT07438041·Not Yet Recruiting

Vascular Intervention Strategies Trial for Alzheimer's

for Hypertension

1 location in Los Angeles

Sponsor: University of Southern California

Sex: All·Age: 50 - 75

Code: NCT07447206·Phase 2·Not Yet Recruiting

"Vasectomy: Right for Me?" Decision Support Tool

for Vasectomy

2 locations incl. San Francisco

Sponsor: University of Pittsburgh

Sex: Male·Age: 21 - 55

Code: NCT07451067·Not Yet Recruiting

A Phase 2 Safety, Tolerability, PK, and Efficacy Study of CS-1103 Following Fentanyl Challenge With Naloxone Blockade

for Fentanyl Overdose

1 location in Glendale

Sponsor: Clear Scientific, Inc.

Sex: All·Age: 18 - 55·Accepts healthy volunteers

Code: NCT07459166·Phase 2·Recruiting

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Outcomes of CTAK Surgery

for Keratoconus

1 location in Palo Alto

Sponsor: Stanford University

Sex: All·Age: 18 - 85

Code: NCT07474870·Phase 4·Not Yet Recruiting

Sham-Controlled Rapid-Acting Neuromodulation for Depression

for Depression - Major Depressive Disorder

1 location in Sacramento

Sponsor: University of California, Davis

Sex: All·Age: 18 - 65

Code: NCT07487454·Not Yet Recruiting

Video Intervention to Improve Understanding of Diabetic Retinopathy at Zuckerberg San Francisco General Hospital and Trauma Center

for Diabetic Retinopathy (DR)

1 location in San Francisco

Sponsor: University of California, San Francisco

Sex: All·Age: 18+

Code: NCT07519707·Recruiting

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ALTO-207 in Adults With Treatment-resistant Depression (TRD)

for Treatment-resistant Depression (TRD)

38 locations incl. Birmingham

Sponsor: Alto Neuroscience

Sex: All·Age: 18 - 75

Code: NCT07553637·Phase 2·Recruiting

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Supporting Just-In-Time Consent for Prenatal Screening: The INFORM Study

for Delivery of Health Care

3 locations incl. San Francisco

Sponsor: Case Western Reserve University

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

Code: NCT07557303·Not Yet Recruiting

The Effects of Mango on Gut Health Markers

for Gut Health

1 location in Loma Linda

Sponsor: Loma Linda University

Sex: All·Age: 40 - 60

Code: NCT07559604·Not Yet Recruiting

Study Evaluating the Efficacy and Safety of RAP-219 in Adult Participants With Focal Seizures FOCUS-1

for Focal Seizure

2 locations incl. Palmdale

Sponsor: Rapport Therapeutics Inc.

Sex: All·Age: 18 - 75

Code: NCT07563881·Phase 3·Recruiting

Apply to this trial