California is currently home to 5600 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.
Study to Assess Change in Disease Activity and Adverse Events of Oral Upadacitinib Compared to Subcutaneous Adalimumab in Adult Participants With Moderate to Severe Rheumatoid Arthritis
Recruiting
Rheumatoid Arthritis (RA) is a chronic inflammatory disease causing pain, stiffness, swelling and loss of joint function. This study will assess how safe and effective upadacitinib is in treating RA when compared to adalimumab in adult participants with inadequate response or intolerance to one TNF-inhibitor who are on a stable dose of methotrexate (MTX). Adverse events and change in disease activity will be assessed. Upadacitinib is an approved drug for the treatment of RA. This study is doubl... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
05/30/2025
Locations: Providence - St. Jude Medical Center /ID# 252690, Fullerton, California
Conditions: Rheumatoid Arthritis
Testing the Addition of an Anti-Cancer Drug, ZEN003694, to the Usual Chemotherapy Treatment (Capecitabine) for Metastatic or Unresectable Cancers
Recruiting
This phase I trial tests the safety, side effects, and best dose of ZEN003694 in combination with the usual treatment with capecitabine in treating patients with cancer that has spread from where it first started (primary site) to other places in the body (metastatic) or cannot be removed by surgery (unresectable) and that it has progressed on previous standard treatment. ZEN003694 is an inhibitor of a family of proteins called the bromodomain and extra-terminal (BET). It may prevent the growth... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
05/30/2025
Locations: UC Irvine Health/Chao Family Comprehensive Cancer Center, Orange, California
Conditions: Metastatic Colorectal Carcinoma, Metastatic Malignant Solid Neoplasm, Stage IV Colorectal Cancer AJCC v8, Unresectable Colorectal Carcinoma, Unresectable Malignant Solid Neoplasm
A Study to Evaluate XEN1101 as Adjunctive Therapy in Primary Generalized Tonic-Clonic Seizures
Recruiting
This is a Phase 3, multicenter, randomized, double-blind, placebo-controlled study to evaluate the clinical efficacy, safety, and tolerability of XEN1101 administered as adjunctive treatment in primary generalized tonic-clonic seizures (PGTCS).
Gender:
ALL
Ages:
12 years and above
Trial Updated:
05/30/2025
Locations: Brain Science Research Institute, Los Angeles, California
Conditions: Primary Generalized Tonic-Clonic Seizures
A Study to Investigate the Pharmacokinetics (PK) and Safety and to Provide Proof of Mechanism of Alogabat in Children and Adolescents Aged 5-17 Years With Angelman Syndrome (AS) With Deletion Genotype.
Recruiting
This is a two-part, Phase IIa, multicenter, 12-week, open-label study. Up to 56 participants with deletion AS aged 5-17 years (inclusive) will be enrolled in the study.
Gender:
ALL
Ages:
Between 5 years and 17 years
Trial Updated:
05/30/2025
Locations: Rady Children's Hospital - San Diego, San Diego, California
Conditions: Angelman Syndrome
DAY101 vs. Standard of Care Chemotherapy in Pediatric Participants With Low-Grade Glioma Requiring First-Line Systemic Therapy (LOGGIC/FIREFLY-2)
Recruiting
This is a 2-arm, randomized, open-label, multicenter, global, Phase 3 trial to evaluate the efficacy, safety, and tolerability of tovorafenib monotherapy versus standard of care (SoC) chemotherapy in participants with pediatric low-grade glioma (LGG) harboring an activating rapidly accelerated fibrosarcoma (RAF) alteration requiring first-line systemic therapy.
Gender:
ALL
Ages:
25 years and below
Trial Updated:
05/30/2025
Locations: Children's Hospital Los Angeles, Los Angeles, California
Conditions: Low-grade Glioma, Rapidly Accelerated Fibrosarcoma (RAF) Altered Glioma, Pediatric Low-grade Glioma
A Feasibility Study to Evaluate Safety and Probable Benefit of the Eclipse XL1 System for Distraction Enterogenesis in Adult and Pediatric Patients With Short Bowel Syndrome
Recruiting
A Feasibility Study to Evaluate Safety and Probable Benefit of the Eclipse XL1 System for Distraction Enterogenesis in Adult and Pediatric Patients with Short Bowel Syndrome
Gender:
ALL
Ages:
Between 12 months and 65 years
Trial Updated:
05/30/2025
Locations: University of California San Francisco, San Francisco, California
Conditions: Short Bowel Syndrome
A Study to Evaluate the Efficacy, Safety, Pharmacokinetics (PK), and Pharmacodynamics (PD) of Satralizumab in Participants With Anti-N-methyl-D-aspartic Acid Receptor (NMDAR) or Anti-leucine-rich Glioma-inactivated 1 (LGI1) Encephalitis
Recruiting
The purpose of this study is to assess the efficacy, safety, PK, and PD of satralizumab in participants with NMDAR and LGI1 encephalitis.
Gender:
ALL
Ages:
12 years and above
Trial Updated:
05/30/2025
Locations: UC San Diego, La Jolla, California
Conditions: NMDAR Autoimmune Encephalitis, LGI1 Autoimmune Encephalitis
A Real-World Study to Gain Clinical Insights Into Roche Ophthalmology Products
Recruiting
The VOYAGER study is a primary data collection, non-interventional, prospective, multinational, multicenter study. It is designed to collect real-world, long-term data to explore long-term effectiveness, safety, clinical insights, treatment patterns, and factors driving the treatment decisions among patients being treated with specified Roche ophthalmology products in approved retinal indications (Faricimab for neovascular age-related macular degeneration \[nAMD\], diabetic macular edema \[DME\]... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
05/30/2025
Locations: Retina-Vitreous Associates Medical Group, Beverly Hills, California
Conditions: Neovascular Age-related Macular Degeneration, Diabetic Macular Edema, Retinal Vein Occlusion, Branch Retinal Vein Occlusion, Central Retinal Vein Occlusion, Hemi-retinal Vein Occlusion
ADG126 in Combination With Pembrolizumab in Patients With Advanced/Metastatic Solid Tumors
Recruiting
This is a Phase 1b/2, open-label, dose escalation study to evaluate the safety, tolerability, PK, and immunogenicity of ADG126-pembrolizumab combination regimens in patients with advanced/metastatic solid tumors.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
05/30/2025
Locations: City of Hope National Medical Center, Duarte, California
Conditions: Advanced/Metastatic Solid Tumors
Elbow Artery Embolization for Tennis Elbow
Recruiting
The purpose of this clinical research study is to examine whether embolization treatment of an elbow artery is a safe and effective way to treat elbow pain, specifically pain from tennis elbow. Embozene is a medical device made by Varian marketed in the United States for the treatment of hypervascular tumors and arteriovenous malformations. It consists of thousands of microscopic spheres that are injected into the artery to block the flow of blood to a specific region. One of the causes of pain... Read More
Gender:
ALL
Ages:
Between 18 years and 80 years
Trial Updated:
05/30/2025
Locations: University of California, Los Angeles, Los Angeles, California
Conditions: Lateral Epicondylitis, Unspecified Elbow
Phase 1/2 Study of BDTX-1535 in Patients With Glioblastoma or Non-Small Cell Lung Cancer With EGFR Mutations
Recruiting
BDTX-1535-101 is an open-label, Phase 1 dose escalation and Phase 2 multiple cohort study designed to evaluate the safety, pharmacokinetics (PK), optimal dosage, central nervous system (CNS) activity, and antitumor activity of BDTX-1535. The study population comprises adults with either advanced/metastatic non-small cell lung cancer (NSCLC) with non-classical or acquired epidermal growth factor receptor (EGFR) resistance (EGFR C797S) mutations with or without CNS disease (in Phase 1 and Phase 2)... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
05/30/2025
Locations: City of Hope Comprehensive Cancer Center (Duarte Campus), Duarte, California
Conditions: Non-Small Cell Lung Cancer, Advanced Non-Small Cell Squamous Lung Cancer, Metastatic Lung Non-Small Cell Carcinoma, Metastatic Lung Cancer, NSCLC, Advanced Lung Carcinoma, Epidermal Growth Factor Receptor C797S, Epidermal Growth Factor Receptor G719X, EGF-R Positive Non-Small Cell Lung Cancer, EGFR-TKI Resistant Mutation
Phase 3 Study to Evaluate the Efficacy and Safety of HER2/Neu Peptide GLSI-100 (GP2 + GM-CSF) in HER2/Neu Positive Subjects
Recruiting
This is a prospective, randomized, double-blinded, placebo-controlled, multi-center, Phase 3 study of GLSI-100 immunotherapy in HLA-A\*02 positive and HER2/neu positive subjects who are at high risk for disease recurrence and have completed both neoadjuvant and postoperative adjuvant standard of care therapy. Treatment consists of 6 intradermal injections, Primary Immunization Series (PIS), over the first 6 months of treatment and 5 booster intradermal injections spaced 6 months apart. A third o... Read More
Gender:
ALL
Ages:
Between 18 years and 100 years
Trial Updated:
05/30/2025
Locations: Providence St. Jude Medical Center - Virginia K. Crosson Cancer Center, Fullerton, California
Conditions: Breast Cancer