California is currently home to 5622 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.
Evaluation of MN-166 (Ibudilast) for 12 Months Followed by an Open-label Extension for 6 Months in Patients With ALS
Recruiting
A Phase 2b/3 multicenter, randomized, double-blind, placebo-controlled, parallel group study to evaluate the efficacy, safety and tolerability of MN-166 given to ALS participants for 12 months followed by a 6-month open-label extension phase.
Gender:
ALL
Ages:
Between 18 years and 80 years
Trial Updated:
05/05/2025
Locations: University of California, Orange, California
Conditions: Amyotrophic Lateral Sclerosis
Post Approval Study (PAS) of the OPTIMIZER Smart and CCM Therapy
Recruiting
The OPTIMIZER Smart Post-Approval Study is a prospective, multi-center, non-randomized, single arm open label study of 620 subjects receiving an OPTIMIZER implant as standard of care. Patients to be included will have NYHA functional class III symptoms and a left ventricular ejection fraction of 25-45%
Gender:
ALL
Ages:
18 years and above
Trial Updated:
05/05/2025
Locations: Cardiovascular Institute of San Diego, Chula Vista, California
Conditions: Heart Failure
Biologic Therapy to Prevent Osteoarthritis After ACL Injury
Recruiting
Anterior cruciate ligament (ACL) injuries are extremely common. On average, 50% of individuals suffering an ACL injury will develop radiographic osteoarthritis (OA) 10 to 20 years after injury. Unfortunately, ACL reconstruction does not prevent risk of future OA. Interleukin-1 (IL-1) levels in the human knee joint increase transiently after an ACL injury. In animal experiments, if interleukin-1 levels are increased in the joint, this alone causes arthritis to occur. Interleukin-1 receptor antag... Read More
Gender:
ALL
Ages:
Between 18 years and 35 years
Trial Updated:
05/05/2025
Locations: University of California, Los Angeles, Los Angeles, California
Conditions: Anterior Cruciate Ligament Injuries
Fertility Preservation Using Tamoxifen and Letrozole in Estrogen Sensitive Tumors Trial
Recruiting
Latrogenic infertility as a result of cancer treatment has a profound effect on long-term quality of life in survivors of reproductive-age cancers. Oocyte cryopreservation prior to cancer treatment has been associated with improved quality of life, with a potential ability to reduce long-term decision-related regret in cancer survivors. Though letrozole plus gonadotropin and and tamoxifen plus gonadotropin are currently routinely used worldwide in ovarian stimulation cycles for fertility preserv... Read More
Gender:
FEMALE
Ages:
Between 18 years and 50 years
Trial Updated:
05/05/2025
Locations: University of California at San Francisco, San Francisco, California
Conditions: Infertility
Retinal Imaging in Patients With Inherited Retinal Degenerations
Recruiting
The purpose of this study is to determine whether the structure and function of the human retina can be studied with high resolution in patients with inherited retinal degenerations using the Adaptive Optics Scanning Laser Ophthalmoscope (AOSLO).
Gender:
ALL
Ages:
13 years and above
Trial Updated:
05/05/2025
Locations: Department of Ophthalmology Retinal Degenerations Clinic, UCSF, San Francisco, California
Conditions: Retinitis Pigmentosa
Conversations in Health Literacy Using AI Technology for Osteoarthritis Patients
Recruiting
The goal of this clinical trial is to assess the use of a generative artificial intelligence large language model chatbot in improving decision making factors in patients with hip and knee osteoarthritis. The main questions it aims to answer are: Does the use of an artificial intelligence chatbot have an effect on decisional conflict and anxiety related to decision making? Are changes in decisional conflict correlated with changes in patient reported outcomes? Are changes in decisional conflict... Read More
Gender:
ALL
Ages:
Between 18 years and 99 years
Trial Updated:
05/02/2025
Locations: University of California Davis Health, Sacramento, California
Conditions: Osteoarthritis, Osteoarthritis of the Hip or Knee
A Study of an FGFR2/3 Inhibitor (CGT4859) in Patients With Cholangiocarcinoma and Other Advanced Solid Tumors
Recruiting
This is an open-label, phase 1/2 study evaluating the safety, tolerability, pharmacokinetic (what the body does to the drug), pharmacodynamic (what the drug does to the body), and antitumor activity of CGT4859 in adult participants with intrahepatic cholangiocarcinoma (iCCA) or other advanced solid tumors with FGFR2 and/or FGFR3 genetic alternations.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
05/02/2025
Locations: Stanford Cancer Institute, Palo Alto, California
Conditions: Intrahepatic Cholangiocarcinoma (Icc), Cholangiocarcinoma, Other Solid Tumors, Adult, FGFR2 Gene Fusion/Rearrangement, FGFR2 Gene Amplification, FGFR2 Gene Short Variants, FGFR3 Gene Fusion/Rearrangement, FGFR3 Gene Amplification, FGFR3 Gene Short Variants, FGFR2 Genetic Alterations, FGFR3 Genetic Alterations, Advanced Solid Tumors
A Study to Assess the Efficacy and Safety of Empasiprubart Versus IVIg in Adults With Multifocal Motor Neuropathy
Recruiting
The main purpose of this study is to compare empasiprubart and IVIg in adult patients with MMN. The study consists of a double-blinded part A (empasiprubart, IVIg) and an open-label part B (empasiprubart). The maximum study duration for participants is up to 49 months.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
05/02/2025
Locations: The Neurology Group, Pomona, California
Conditions: Multifocal Motor Neuropathy (MMN)
The Use of Residual De-identified Specimens and/or Samples From Patients for Clinical Research
Recruiting
Acquire residual human specimens and/or samples from patient samples which were sent for testing at LabPMM, LLC for Clinical Research
Gender:
ALL
Ages:
18 years and above
Trial Updated:
05/02/2025
Locations: LabPMM, San Diego, California
Conditions: Hematologic Diseases
A Study About Antibody Levels and Biomarkers in the Blood in People With Late-onset Pompe Disease
Recruiting
Pompe disease is a genetic condition which causes muscle weakness over time. People with Pompe disease have a faulty gene that makes an enzyme called acid alpha-glucosidase (or GAA). This enzyme breaks down a type of sugar called glycogen. Without this enzyme, there is a build-up of glycogen in the cells of the body. This causes muscle weakness and other symptoms. Pompe disease can happen at any age, but in late-onset Pompe disease, symptoms generally start from 12 months old onwards. The stand... Read More
Gender:
ALL
Ages:
Between 16 years and 69 years
Trial Updated:
05/02/2025
Locations: University of California Irvine, Irvine, California
Conditions: Pompe Disease (Late-onset)
Fluorescent Probe VGT-309 to ID Cancerous Colorectal Lesions During Augmented Colonoscopy
Recruiting
The purpose of this study is to determine the safety and feasibility of VGT-309 for the visualization of colorectal tumors in real-time using near-infrared (NIR) fluorescence endoscopy. In addition, signatures of 50+ biomarkers will be evaluated in biopsies using CODEX multi-plexing.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
05/02/2025
Locations: Stanford University, Palo Alto, California
Conditions: Colorectal Cancer
A Post-Authorisation Safety Study (PASS) of Patients Treated With Lonapegsomatropin
Recruiting
The goal of this study is to further characterise the potential long-term safety risks of lonapegsomatropin in patients treated with lonapegsomatropin under real-world conditions in the post-marketing setting.
Gender:
ALL
Ages:
Between 1 year and 18 years
Trial Updated:
05/02/2025
Locations: Ascendis Investigational Site, Sacramento, California
Conditions: Growth Hormone Deficiency