California is currently home to 5585 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.
S1827 (MAVERICK) Testing Whether the Use of Brain Scans Alone Instead of Brain Scans Plus Preventive Brain Radiation Affects Lifespan in Patients With Small Cell Lung Cancer
Recruiting
This phase III trial studies magnetic resonance imaging (MRI) surveillance and prophylactic cranial irradiation (PCI) to see how well they work compared to MRI surveillance alone in treating patients with small cell lung cancer. MRI scans are used to monitor the possible spread of the cancer with an MRI machine over time. PCI is radiation therapy that is delivered to the brain in hopes of preventing spread of cancer into the brain. The use of brain MRI alone may reduce side effects of receiving... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
05/20/2025
Locations: City of Hope Corona, Corona, California
Conditions: Extensive Stage Lung Small Cell Carcinoma, Limited Stage Lung Small Cell Carcinoma, Lung Small Cell Carcinoma
National Translational Science Network of Precision-based Immunotherapy for Primary Liver Cancer
Recruiting
Background: Primary Liver Cancer is the second most common cause of cancer-related death worldwide. It is the cancer with the fastest rising incidence and mortality in the United States. Researchers want to learn more about liver cancer to help them design better treatments. Objective: To better understand liver cancer. Eligibility: People ages 18 and older who have liver cancer and had or are planning to have immune therapy Design: Participants will be screened with a review of their med... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
05/20/2025
Locations: University of California, San Diego (UCSD), La Jolla, California
Conditions: Hepatocellular Carcinoma, Liver Cancer, Cholangiocarcinoma
Transcatheter Mitral Valve Replacement With the Medtronic Intrepid™ TMVR System in Patients With Severe Symptomatic Mitral Regurgitation.
Recruiting
Multi-center, global, prospective, non-randomized, interventional, pre-market trial. All subjects enrolled with receive the study device.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
05/20/2025
Locations: Scripps Memorial Hospital, La Jolla, California
Conditions: Mitral Valve Regurgitation
A Longitudinal Observational Study of the Natural History and Management of Patients With HCC
Recruiting
TARGET-HCC is a longitudinal, observational study of patients being managed for HCC in usual clinical practice. TARGET-HCC will create a research registry of participants with HCC within academic and community real-world practices in order to assess the safety and effectiveness of the entire spectrum of current and future therapies across diverse populations.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
05/20/2025
Locations: University of Southern California/Norris Comprehensive Cancer Center, Los Angeles, California
Conditions: Hepatocellular Cancer
A Longitudinal Observational Study of Patients With Nonalcoholic Steatohepatitis (NASH) and Related Conditions Across the Entire Spectrum of Nonalcoholic Fatty Liver Disease (NAFLD)
Recruiting
TARGET-NASH is a longitudinal observational cohort study of patients being managed for NASH and related conditions across the entire spectrum NAFLD in usual clinical practice. TARGET-NASH is a research registry of patients with NAFL or NASH within academic and community real-world practices maintained in order to assess the safety and effectiveness of current and future therapies.
Gender:
ALL
Ages:
2 years and above
Trial Updated:
05/20/2025
Locations: Stanford University, Palo Alto, California
Conditions: Nonalcoholic Fatty Liver, Nonalcoholic Steatohepatitis
Myeloablative Conditioning, Prophylactic Defibrotide and Haplo AlloSCT for Patients With Sickle Cell Disease
Recruiting
This is a follow-up trial to NYMC 526 (NCT01461837) to assess the safety, efficacy and toxicity of administering Defibrotide prophylaxis for high-risk sickle cell or beta thalassemia patients undergoing a familial haploidentical allogeneic stem cell transplantation with CD34 enrichment and T-cell addback. This patient population historically has a risk of developing sinusoidal obstructive syndrome (SOS) and Defibrotide has demonstrated efficacy in treatment of SOS. The Funding Source is FDA OOPD... Read More
Gender:
ALL
Ages:
Between 6 months and 34 years
Trial Updated:
05/20/2025
Locations: University of California Los Angeles, Los Angeles, California
Conditions: Sickle Cell Disease
Sensory Motor Transformations in Human Cortex
Recruiting
This research study is being conducted to develop a brain controlled medical device, called a brain-machine interface. The device will provide people with a spinal cord injury some ability to control an external device such as a computer cursor or robotic limb by using their thoughts along with sensory feedback. Development of a brain-machine interface is very difficult and currently only limited technology exists in this area of neuroscience. Other studies have shown that people with high spin... Read More
Gender:
ALL
Ages:
Between 22 years and 65 years
Trial Updated:
05/20/2025
Locations: Rancho Los Amigos National Rehabilitation Center, Downey, California
Conditions: Quadriplegia
A Study to Investigate Safety, Tolerability, Pharmacokinetics (PK), Pharmacodynamics (PD), and Immunogenicity of RO7669330 in Participants With Geographic Atrophy (GA) Secondary to Age-related Macular Degeneration (AMD)
Recruiting
The main purpose of this study is to assess the ocular and systemic safety and tolerability of RO7669330 in GA secondary to AMD after multiple unilateral intravitreal (IVT) doses.
Gender:
ALL
Ages:
55 years and above
Trial Updated:
05/19/2025
Locations: Global Research Management, Glendale, California
Conditions: Geographic Atrophy, Age-related Macular Degeneration
A Study of 2 Doses of EYE103 Compared With Ranibizumab (0.5 mg) in Participants With DME
Recruiting
EYE-RES-103 is a randomized, double masked pivotal study to evaluate the efficacy and safety of 2 dose levels of EYE103 in comparison with the active control, ranibizumab, in patients with diabetic macular edema (DME). In the first year, all 3 treatment groups will be treated every 4 weeks with either EYE103 or ranibizumab. Beginning at Year 2, the frequency of treatment for participants will shift based on a personalized treatment interval algorithm. Approximately 960 participants will be ent... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
05/19/2025
Locations: Bakersfield, CA, Bakersfield, California
Conditions: Diabetic Macular Edema (DME)
A Study of Efimosfermin Alfa in Participants With Biopsy-confirmed Cirrhosis (Compensated) MASH
Recruiting
The purpose of this study is to evaluate the safety, tolerability, preliminary efficacy, and pharmacokinetics (PK) of efimosfermin in participants with metabolic dysfunction associated steatohepatitis (MASH) and compensated cirrhosis consistent with stage F4 fibrosis.
Gender:
ALL
Ages:
Between 18 years and 75 years
Trial Updated:
05/19/2025
Locations: Fresno Clinical Research Center, Fresno, California
Conditions: Metabolic Dysfunction-Associated Steatohepatitis
Response to an Investigational Device in Patients With Restless Legs Syndrome
Recruiting
This study assesses the tolerability, safety, and impact of an investigational medical device on restless legs syndrome symptoms. The IRB has established that the investigational device is non-significant risk.
Gender:
ALL
Ages:
21 years and above
Trial Updated:
05/19/2025
Locations: Noctrix Health Headquarters, Pleasanton, California
Conditions: Restless Legs Syndrome
Double-blind, Randomized, Placebo-controlled, Multicenter Study to Evaluate the Efficacy and Safety of Ravulizumab Administered Intravenously in Adult Participants at High Risk of Delayed Graft Function After Kidney Transplantation
Recruiting
The primary objective of this study is to demonstrate the efficacy of ravulizumab vs placebo in reducing the severity of DGF as measured by time to freedom from dialysis in adult participants who are at high risk of DGF after undergoing transplant of deceased donor kidney.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
05/19/2025
Locations: Research Site, Los Angeles, California
Conditions: Delayed Graft Function, DGF, Kidney Transplant