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Clinical Trials in California

Recruiting clinical trials with at least one study location in California. Data updated daily from ClinicalTrials.gov.

Total Trials
833
Recruiting Now
833
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Top Conditions in California
Breast Cancer (16)Prostate Cancer (15)Colorectal Cancer (13)Obesity (10)Head and Neck Squamous Cell Carcinoma (8)Multiple Myeloma (8)Advanced Solid Tumor (8)Ovarian Cancer (8)Pancreatic Cancer (7)Asthma (7)Advanced Solid Tumors (7)Lung Cancer (7)

Frequently Asked Questions — Clinical Trials in California

How many clinical trials are currently recruiting in California?
ClinicalMetric currently tracks 833 actively recruiting clinical trials with at least one location in California. The total number of registered studies—including active but not currently enrolling trials—is 833. Trial availability is updated daily from ClinicalTrials.gov, and new studies open enrollment regularly throughout the year.
What types of clinical trials are available in California?
California hosts clinical trials across a broad range of medical conditions, including Breast Cancer, Prostate Cancer, Colorectal Cancer, and many others. Trials range from Phase 1 early-safety studies to Phase 4 post-approval surveillance, as well as observational and behavioral research. Academic medical centers, community hospitals, and specialized research clinics throughout California serve as trial sites for studies sponsored by NIH, pharmaceutical companies, and independent investigators.
How do I join a clinical trial near me in California?
To join a clinical trial in California, browse the recruiting studies listed on this page, review the eligibility criteria for each trial, and contact the study site directly. Your primary care physician or specialist can also refer you to clinical trials relevant to your diagnosis. Many academic medical centers in California maintain dedicated clinical trials offices that can match you with appropriate studies based on your medical profile and diagnosis.

Recruiting Trials in California

NCT07087184 N/A
Recruiting
Gauging Outcomes of Total Milk Ingestion on Lipid and gControl
Condition
Heart Diseases
Enrollment
100 pts
Location
United States
Sponsor
University of California, San
View Trial →
NCT04181060 Phase 3
Recruiting
Osimertinib With or Without Bevacizumab as Initial Treatment for Patients With E...
Condition
Advanced Lung Non-Squamous Non-Small Cell Carcinoma
Enrollment
300 pts
Location
United States
Sponsor
National Cancer Institute (NCI
View Trial →
NCT05913908 N/A
Recruiting
EFS of the DUO System for Tricuspid Regurgitation
Condition
Tricuspid Regurgitation
Enrollment
15 pts
Location
United States, Poland
Sponsor
CroiValve Limited
View Trial →
NCT06100289 Phase 3
Recruiting
A Study of Vedolizumab in Children and Teenagers With Ulcerative Colitis or Croh...
Condition
Ulcerative Colitis
Enrollment
70 pts
Location
United States, Belgium, Bulgaria
Sponsor
Takeda
View Trial →
NCT06373497 EARLY_Phase 1
Recruiting
Real-Time Atherosclerosis Activity After Thoracic Radiotherapy Using Sodium Fluo...
Condition
Oligometastatic Disease
Enrollment
10 pts
Location
United States
Sponsor
Katelyn Atkins
View Trial →
NCT06400004 Phase 3
Recruiting
Lumason® Infusion vs. Bolus Administrations
Condition
Heart Diseases
Enrollment
106 pts
Location
United States
Sponsor
Bracco Diagnostics, Inc
View Trial →
NCT06770582 Phase 2
Recruiting
Testing the Addition of the Immunotherapy Drug, Pembrolizumab, to Radiation Ther...
Condition
Non-Muscle Invasive Bladder Urothelial Carcinoma
Enrollment
160 pts
Location
United States, Canada
Sponsor
National Cancer Institute (NCI
View Trial →
NCT07556159 N/A
Recruiting
A Study Evaluating Disease Characteristics and Outcomes in Participants With Ast...
Condition
Asthma
Enrollment
2,500 pts
Location
United States
Sponsor
Sanofi
View Trial →
NCT06296550 N/A
Recruiting
Enhancing Digitally Delivered Diabetes Education With Real-Time CGM
Condition
Diabetes Type 2
Enrollment
140 pts
Location
United States
Sponsor
Scripps Whittier Diabetes Inst
View Trial →
NCT04752774 Phase 1, Phase 2
Recruiting
A Study to Assess the Safety and Efficacy of IPN10200 in Adult Participants With...
Condition
Spasticity
Enrollment
240 pts
Location
United States, Austria, Bulgaria
Sponsor
Ipsen
View Trial →
NCT05599048 Phase 1, Phase 2
Recruiting
Hyperpolarized 13C MRI as a Biomarker in Advanced Solid Tumors
Condition
Advanced Solid Tumor
Enrollment
65 pts
Location
United States
Sponsor
Robert Bok, MD, PhD
View Trial →
NCT05169515 Phase 1
Recruiting
A Study Evaluating the Safety, Pharmacokinetics, and Efficacy of Mosunetuzumab o...
Condition
Non-Hodgkin Lymphoma
Enrollment
121 pts
Location
United States, Israel, Italy
Sponsor
Hoffmann-La Roche
View Trial →
NCT05219617 Phase 3
Recruiting
Investigate Efficacy and Safety of Carisbamate as Adjunctive Treatment for Seizu...
Condition
Seizures
Enrollment
252 pts
Location
United States, Argentina, Australia
Sponsor
SK Life Science, Inc.
View Trial →
NCT06832306 N/A
Recruiting
STimulation to Activate RespIration
Condition
ARDS (Moderate or Severe)
Enrollment
30 pts
Location
United States, Canada
Sponsor
Lungpacer Medical Inc.
View Trial →
NCT06535789 Phase 2, Phase 3
Recruiting
Inhaled Insulin vs Rapid-acting Injections for Post-meal Glucose Control in Wome...
Condition
Diabetes, Gestational
Enrollment
30 pts
Location
United States
Sponsor
Jaeb Center for Health Researc
View Trial →
NCT07220460 Phase 2
Recruiting
Study to Assess the Adverse Events of Oral ABBV-932 in Adult Participants With D...
Condition
Bipolar I or II Disorder
Enrollment
200 pts
Location
United States, Puerto Rico
Sponsor
AbbVie
View Trial →
NCT05962424 Phase 1
Recruiting
HNC: Human Neural Circuits Electrophysiology During Cognition
Condition
Psychiatric Disorder
Enrollment
120 pts
Location
United States
Sponsor
Stanford University
View Trial →
NCT06317259 N/A
Recruiting
Effects of Hypoxic Breathwork
Condition
Hypoxic Breathwork With Music and Affirmative Messaging
Enrollment
75 pts
Location
United States
Sponsor
University of California, San
View Trial →
NCT07443670 N/A
Recruiting
Voice Analysis to Detect Pulmonary Arterial Pressure Changes in Heart Failure
Condition
Heart Failure
Enrollment
60 pts
Location
United States, Germany
Sponsor
Noah Labs
View Trial →
NCT05828069 Phase 2
Recruiting
A Study With Tovorafenib (DAY101) as a Treatment Option for Progressive, Relapse...
Condition
Recurrent Langerhans Cell Histiocytosis
Enrollment
48 pts
Location
United States, Australia, Canada
Sponsor
National Cancer Institute (NCI
View Trial →
NCT06967805 Phase 2
Recruiting
WISPer: Evaluation of MTX-463 in Participants With Idiopathic Pulmonary Fibrosis...
Condition
Idiopathic Pulmonary Fibrosis
Enrollment
164 pts
Location
United States, Argentina, Australia
Sponsor
Mediar Therapeutics
View Trial →
NCT05533697 Phase 1, Phase 2
Recruiting
Study of mRNA-4359 Administered Alone and in Combination With Immune Checkpoint ...
Condition
Advanced Solid Tumors
Enrollment
361 pts
Location
United States, Australia, Spain
Sponsor
ModernaTX, Inc.
View Trial →
NCT07227259 N/A
Recruiting
Health Properties of Pecan Nut Consumption
Condition
Healthy Adults
Enrollment
40 pts
Location
United States
Sponsor
University of California, Davi
View Trial →
NCT05692180 Phase 3
Recruiting
A Multicentre, Randomised, Double-blind, Parallel Group, Placebo-controlled, Tim...
Condition
Asthma
Enrollment
200 pts
Location
United States, Argentina, Canada
Sponsor
AstraZeneca
View Trial →
NCT04678154 Phase 3
Recruiting
Evaluation of a New Strategy for Protocolized Antibiotic Care for Severe Open Fr...
Condition
Post Operative Surgical Site Infection
Enrollment
1,200 pts
Location
United States
Sponsor
Major Extremity Trauma Researc
View Trial →
Page 3 of 34 — 833 trials total
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ClinicalMetric — Independent clinical trial intelligence platform. Not affiliated with NIH, ClinicalTrials.gov, the U.S. FDA, or any pharmaceutical company, hospital, or clinical research organization. Trial data is sourced from ClinicalTrials.gov for informational purposes only and does not constitute medical advice. Do not make any treatment, enrollment, or health decisions based solely on information found here — always consult a qualified healthcare professional. Full Disclaimer  ·  Last Reviewed: April 2026  ·  Data Methodology