California is currently home to 5602 active clinical trials, seeking participants for engagement in research studies. These trials take place at a variety of cities in the state, including Los Angeles, San Francisco, San Diego and Sacramento. Whether you're a healthy volunteer interested in paid medical research or someone seeking trials related to a specific condition, the state offers a diverse array of opportunities in your vicinity.
Durability of Suppl. Rod Constructs-SuppleMentAry Rod Technique for Long-segment Posterior Instrumented Spinal Fusions
Recruiting
This is a multicenter retrospective comparative cohort study. The index surgery for this study is primary or revision long-segment posterior thoracolumbar (TL) instrumented fusion using either a supplementary rod construct or a dual-rod construct. Eligible patients who already had index surgery, will be identified for enrollment through a review of medical records of the participating surgeons at the study sites.
Gender:
ALL
Ages:
45 years and above
Trial Updated:
07/15/2025
Locations: Stanford Spine Clinic, Redwood City, California
Conditions: Spinal Fusion
A Study of Lebrikizumab (LY3650150) in Adult Participants With Chronic Rhinosinusitis and Nasal Polyps Treated With Intranasal Corticosteroids (CONTRAST-NP)
Recruiting
The main purpose of this study is to evaluate the efficacy and safety of lebrikizumab in adult participants with chronic rhinosinusitis and nasal polyps treated with intranasal corticosteroids. The study will last about 18 months.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/15/2025
Locations: Keck Medicine of USC, Arcadia, California
Conditions: Chronic Rhinosinusitis With Nasal Polyps (CRSwNP)
Cadisegliatin as Adjunctive Therapy to Insulin in Participants With Type 1 Diabetes
Recruiting
This is a Phase 3 trial of cadisegliatin as adjunctive therapy to insulin in participants with Type 1 Diabetes Mellitus.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/15/2025
Locations: Advanced Metabolic Care & Research Institute, Inc. (AMCR), Escondido, California
Conditions: Diabetes Mellitus, Type 1
A Study to Evaluate the Efficacy and Safety of Subcutaneous Amlitelimab on Background Topical Corticosteroids Therapy in Participants Aged 12 Years and Older With Moderate-to-severe AD Who Have Had an Inadequate Response to Prior Biologic Therapy or an Oral JAK Inhibitor
Recruiting
This is a parallel group, Phase 3, multinational, multicenter, randomized, double-blind, placebo-controlled, 3-arm study for treatment of participants diagnosed with moderate-to-severe AD on background TCS who have had inadequate response to prior biologic or oral JAKi therapy. The purpose of this study is to measure the efficacy and safety of treatment with amlitelimab solution for subcutaneous (SC) injection compared with placebo in participants with moderate-to-severe AD aged 12 years and ol... Read More
Gender:
ALL
Ages:
12 years and above
Trial Updated:
07/15/2025
Locations: Encino Research Center- Site Number : 8401042, Encino, California
Conditions: Dermatitis Atopic
Comparing SingLe- Vs Multi-Fraction Spine STereotActic Radiosurgery in Spinal Metastases
Recruiting
The goal of this study is to determine whether fractionated Stereotactic radiosurgery (SRS) for spine metastases is associated with improved local tumor control compared to single-fraction SRS. Patients will be randomized to treatment with spine SRS using either 22 Gy in 1 fraction or 28 Gy in 2 fractions.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/15/2025
Locations: Stanford University School of Medicine, Palo Alto, California
Conditions: Spinal Metastases
A Randomized Comparison of Stage-Based Care Versus Risk Factor-Based Care for Prevention of Cardiovascular Events
Recruiting
TRANSFORM is a prospective, randomized, open blinded endpoint (PROBE), event-driven, pragmatic trial in patients who are at increased risk for atherosclerotic cardiovascular (CV) disease but with no known symptomatic CV disease. The trial tests the hypothesis that a Cleerly Coronary Artery Disease (CAD) Staging System-based care strategy reduces CV events compared with risk factor-based care.
Gender:
ALL
Ages:
55 years and above
Trial Updated:
07/15/2025
Locations: Cardiovascular Research Foundation of Southern California, Beverly Hills, California
Conditions: Diabetes Mellitus, Type 2, PreDiabetes, Metabolic Syndrome
5-Day Preoperative Radiation for Soft Tissue Sarcoma
Recruiting
The purpose of this study is to examine the safety and efficacy of an abbreviated course of preoperative radiation, given over five days, for patients with soft tissue sarcoma of the extremity, trunk or retroperitoneum. This is in contrast to standard preoperative radiation, which is given over 25 days.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/15/2025
Locations: Stanford University, Palo Alto, California
Conditions: Soft Tissue Sarcoma
CTSN Embolic Protection Trial
Recruiting
This is a prospective, multi-center, randomized effectiveness trial of the CardioGard Embolic Protection Cannula in high-risk valve surgery patients.
Gender:
ALL
Ages:
60 years and above
Trial Updated:
07/15/2025
Locations: Keck Hospital of the University of Southern California, Los Angeles, California
Conditions: Delirium, Ischemic Stroke, Acute Kidney Injury, Heart Valve Disease, Coronary Artery Disease
A Study to Learn How Well Dupilumab Works in Adult and Adolescent Participants With Eosinophilic Gastritis With or Without Eosinophilic Duodenitis and the Side Effects it May Have
Recruiting
This study is researching an experimental drug called dupilumab. The study is focused on participants with active eosinophilic gastritis (EoG) with or without eosinophilic duodenitis (EoD). Participants with EoD only are not eligible for enrollment. EoG and EoD are uncommon, persistent, allergic/immune diseases in which eosinophils (a type of white blood cell) gather in large numbers in the stomach and small intestine and cause inflammation and damage. The aim of the study is to evaluate the ef... Read More
Gender:
ALL
Ages:
12 years and above
Trial Updated:
07/15/2025
Locations: Om Research LLC, Apple Valley, California
Conditions: Eosinophilic Gastritis (EoG), Eosinophilic Duodenitis (EoD), Eosinophilic Gastrointestinal Disease (EGID), Eosinophilic Gastroenteritis
Study of the CHK1 Inhibitor BBI-355, an ecDNA-directed Therapy (ecDTx), and the RNR Inhibitor BBI-825, in Subjects With Tumors With Oncogene Amplifications
Recruiting
BBI-355 is an oral, potent, selective checkpoint kinase 1 (or CHK1) small molecule inhibitor in development as an ecDNA (extrachromosomal DNA) directed therapy (ecDTx). BBI-825 is an oral, potent, selective ribonucleotide reductase (or RNR) small molecule inhibitor. This is a first-in-human, open-label, 2-part, Phase 1/2 study to determine the safety profile and identify the maximum tolerated dose and recommended Phase 2 dose of BBI-355 administered as a single agent or in combination with BBI-8... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/15/2025
Locations: UCLA Medical Center, Los Angeles, California
Conditions: Triple Negative Breast Cancer (TNBC), High Grade Serous Ovarian Carcinoma, High Grade Endometrial Carcinoma, Anogenital Cancer, Head and Neck (HNSCC), Cutaneous Squamous Cell Carcinoma (CSCC), Cervical Squamous Cell Carcinoma, ER+ Breast Cancer, Leiomyosarcoma (LMS), Undifferentiated Pleomorphic Sarcoma (UPS), Pancreatic Cancer Metastatic, Small Cell Lung Cancer
Building Resilience at Schools: Emotional and Biological Assessment and Treatment of Traumatic Stress
Recruiting
In the last four years alone, residents of Puerto Rico have experienced a slew of natural disasters including Hurricane Maria in 2017, earthquakes in 2019 and 2020, the continued COVID-19 pandemic from 2020-2022, and most recently Hurricane Fiona. This series of distressing events can lead to an increased need for mental health resources and trauma treatment. Furthermore, the unique single-district structure of the Puerto Rican education system allows for the efficient dissemination of potential... Read More
Gender:
ALL
Ages:
Between 11 years and 17 years
Trial Updated:
07/15/2025
Locations: Stanford University, Palo Alto, California
Conditions: Post Traumatic Stress Disorder, Complex Posttraumatic Stress Disorder, Stress, Burn Out, Mental Health Issue
Testing the Addition of Sunitinib Malate to Lutetium Lu 177 Dotatate (Lutathera) in Pancreatic Neuroendocrine Tumors
Recruiting
This phase I trial tests the safety, side effects, and best dose of sunitinib malate in combination with lutetium Lu 177 dotatate in treating patients with pancreatic neuroendocrine tumors. Sunitinib malate is in a class of medications called kinase inhibitors and a form of targeted therapy that blocks the action of abnormal proteins called VEGFRs that signal tumor cells to multiply. This helps stop or slow the spread of tumor cells. Radioactive drugs, such as lutetium Lu 177 dotatate, may carry... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/15/2025
Locations: City of Hope Comprehensive Cancer Center, Duarte, California
Conditions: Metastatic Pancreatic Neuroendocrine Tumor, Pancreatic Neoplasm, Stage III Pancreatic Neuroendocrine Tumor AJCC v8, Stage IV Pancreatic Neuroendocrine Tumor AJCC v8, Unresectable Pancreatic Neuroendocrine Tumor