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.
P-CD19CD20-ALLO1 Allogeneic CAR-T Cells in the Treatment of Subjects With B Cell Malignancies
Recruiting
Phase 1 study comprised of open-label, dose escalation and expansion cohort study of P-CD19CD20-ALLO1 allogeneic T stem cell memory (Tscm) CAR-T cells in subjects with relapsed/refractory B cell malignancies
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/06/2025
Locations: University of California San Diego, La Jolla, California
Conditions: Primary Mediastinal Large B-cell Lymphoma (PMBCL), Diffuse Large B-Cell Lymphoma, Not Otherwise Specified, High-grade B-cell Lymphoma, Transformed Follicular Lymphoma (tFL), Follicular Lymphoma Grade 3B, DLBCL, DLBCL - Diffuse Large B Cell Lymphoma, DLBCL Arising From Follicular Lymphoma, DLBCL, Diffused Large B Cell Lymphoma, DLBCL NOS
A Global Study of Volrustomig (MEDI5752) Plus Chemotherapy Versus Pembrolizumab Plus Chemotherapy for Participants With Metastatic Non-small Cell Lung Cancer.
Recruiting
The purpose of eVOLVE-Lung02 is to test the effectiveness (efficacy) and measure the safety of volrustomig in combination with chemotherapy compared with pembrolizumab in combination with chemotherapy as 1L treatment in participants with mNSCLC in PD-L1 \< 50%.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/06/2025
Locations: Research Site, Long Beach, California
Conditions: Metastatic Non-small Cell Lung Cancer
The THOR IDE Study
Recruiting
The goal of this clinical trial is to test the Thor system in adult (≥ 18 year old) patients with de novo (new, never treated) calcified lesions in infrainguinal (leg) arteries (peripheral artery disease or PAD). The main question\[s\] it aims to answer are: * Is the Thor system safe in treating these lesions * Does the Thor system work to treat these lesions Participants will: * Receive treatment with the Thor system * Have follow-up visits at Discharge, 30 days, 6 months, and 12 months
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/06/2025
Locations: St. Helena Hospital, Saint Helena, California
Conditions: Peripheral Artery Disease, Peripheral Artery Stenosis, Peripheral Artery Calcification, PAD
Study of an Intrathecal Port and Catheter System for Subjects With Spinal Muscular Atrophy
Recruiting
The primary objective of the clinical investigation is to demonstrate successful clinical use of the ThecaFlex DRx™ System in delivering nusinersen in subjects with spinal muscular atrophy (SMA). All enrolled subjects will undergo implantation of the investigational device (ThecaFlex DRx™ System) and will be followed for 12 months after receiving the implant. The 12-month data will be used to assess the primary endpoint support a Pre-Market Approval (PMA) application.
Gender:
ALL
Ages:
3 years and above
Trial Updated:
08/06/2025
Locations: Children's Hospital Orange County, Orange, California
Conditions: Spinal Muscular Atrophy, Spine Deformity, Scoliosis
DEFIANCE: RCT of ClotTriever System Versus Anticoagulation In Deep Vein Thrombosis
Recruiting
This study is a prospective, multicenter, randomized controlled trial of an interventional strategy using the ClotTriever System to achieve and maintain vessel patency (ClotTriever Intervention Arm) versus conservative medical management using anticoagulation therapy alone (Conservative Medical Management Arm) in the treatment of subjects with symptomatic unilateral iliofemoral DVT. The study will collect data on demographics, comorbidities, details from the DVT diagnosis and treatment, and clin... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/06/2025
Locations: UCI Medical Center, Orange, California
Conditions: Venous Thromboembolism, Deep Venous Thrombosis, Post-Thrombotic Syndrome
First in Human Study of AZD9592 in Solid Tumors
Recruiting
This is a first-in-human (FIH) Phase I, multi-center, open-label, study of AZD9592, in patients with advanced solid tumors. The study consists of several study modules, each evaluating the safety, tolerability, preliminary efficacy, pharmacokinetics (PK), pharmacodynamics, anti-tumor activity, and immunogenicity of AZD9592, as monotherapy or in combination with anti-cancer agents.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/06/2025
Locations: Research Site, Duarte, California
Conditions: Advanced Solid Tumours, Carcinoma Non-small Cell Lung, Head and Neck Neoplasms, Colorectal Neoplasms
Dose-finding Study of SAR443122 in Adult Participants With Ulcerative Colitis
Recruiting
This is a randomized, double-blind, placebo controlled, dose-ranging Phase 2 study. The primary objective is to evaluate the efficacy and safety of SAR443122 compared to placebo in participants with moderate to severe UC. Dose selection for further clinical development will be based on the multiple efficacy, safety and PK parameters. The study consists of 4 parallel arms (3 dose groups of SAR443122 vs placebo) to assess the efficacy and safety of SAR443122 in participants with moderate to sever... Read More
Gender:
ALL
Ages:
Between 18 years and 75 years
Trial Updated:
08/06/2025
Locations: Om Research - Lancaster - 15th Street West- Site Number : 8400014, Lancaster, California
Conditions: Colitis Ulcerative
A 2-Part Study to Learn Whether Litifilimab (BIIB059) Injections Can Improve Symptoms of Adult Participants Who Have Active Cutaneous Lupus Erythematosus
Recruiting
In this study, researchers will learn more about a study drug called litifilimab (BIIB059) in participants with cutaneous lupus erythematosus (CLE). The study will focus on participants who have either active subacute CLE or chronic CLE, or both. They may also have systemic lupus erythematosus (SLE). The participants did not respond to antimalarial therapy or had problems with the treatment that made it hard to continue. The main objective of the study is to learn about the effect litifilimab h... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/06/2025
Locations: The Regents of the University of California, La Jolla, California
Conditions: Subacute Cutaneous Lupus Erythematosus, Chronic Cutaneous Lupus Erythematosus
A Study to Learn More About How Safe the Study Treatment Finerenone is in Long-term Use When Taken With an ACE Inhibitor or Angiotensin Receptor Blocker Over 18 Months of Use in Children and Young Adults From 1 to 18 Years of Age With Chronic Kidney Disease and Proteinuria
Recruiting
Researchers are looking for a better way to treat children who have chronic kidney disease (CKD), which is long-term kidney disease, and proteinuria, a condition in which a person´s kidneys leak protein into the urine. The kidneys filter waste and fluid from the blood to form urine. In children with CKD, the kidney´s filters do not work as well as they should. This can lead to accumulation of waste and fluid in the body and proteinuria. CKD can lead to other medical problems, such as high blood... Read More
Gender:
ALL
Ages:
Between 1 year and 18 years
Trial Updated:
08/06/2025
Locations: Cedars-Sinai Samuel Oschin Cancer Center, Los Angeles, California
Conditions: Chronic Kidney Disease, Proteinuria, Children
Study of Abemaciclib and Elacestrant in Patients With Brain Metastasis Due to ER+/HER-2- Breast Cancer
Recruiting
This is a multi-site, global, open-label study that includes a phase 1b evaluation of elacestrant in combination with abemaciclib in women and men with brain metastases from estrogen receptor (ER)-positive, human epidermal growth factor receptor-2 (HER-2) negative breast cancer. Phase 1b was designed to select the recommended phase 2 dose and is followed by an ongoing phase 2 evaluation of elacestrant in combination with abemaciclib in patients with active brain metastases from ER-positive, HER-... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/06/2025
Locations: Providence Medical Foundation, Fullerton, California
Conditions: Breast Neoplasms, Brain Neoplasms, Neoplasms by Site, Neoplasms, Breast Diseases, Central Nervous System Neoplasms, Brain Diseases, Central Nervous System Diseases
A Study of AK112 With or Without AK117 in Metastatic Colorectal Cancer
Recruiting
This trial is a Phase II study. The purpose of this study is to evaluate the efficacy, safety, and pharmacokinetics of AK112 with or without AK117 in participants with metastatic colorectal cancer who are not suitable for surgery.
Gender:
ALL
Ages:
Between 18 years and 75 years
Trial Updated:
08/06/2025
Locations: Summit Therapeutics Research Site, Los Angeles, California
Conditions: Metastatic Colorectal Cancer
A Study to Evaluate Investigational Agents With or Without Pembrolizumab (MK-3475) in Participants With Advanced Esophageal Cancer Previously Exposed to Programmed Cell Death 1 Protein (PD-1)/ Programmed Cell Death Ligand 1 (PD-L1) Treatment (MK-3475-06B)
Recruiting
This is a Phase 1/2, multicenter, randomized, open-label umbrella platform study to evaluate the safety and efficacy of investigational agents with or without pembrolizumab and/or chemotherapy, for the treatment of participants with second line (2L) esophageal squamous cell carcinoma (ESCC) who have previously been exposed to PD-1/PD-L1 based treatment.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/06/2025
Locations: UCLA Hematology/Oncology - Santa Monica ( Site 4905), Los Angeles, California
Conditions: Esophageal Squamous Cell Carcinoma