California is currently home to 5617 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.
A Study to Assess the Safety and Clinical Activity of Azer-cel in Participants With B-cell Mediated Autoimmune Disorders
Recruiting
The main objective of the study is to determine the recommended phase 2 dose (RP2D) of Azercabtagene zapreleucel (azer-cel).
Gender:
ALL
Ages:
Between 18 years and 60 years
Trial Updated:
07/30/2025
Locations: TG Therapeutics Investigational Trial Site, La Jolla, California
Conditions: B-cell Mediated Autoimmune Disorders
A Study of Zasocitinib in Adults With Psoriatic Arthritis Who Have or Have Not Been Treated With Biologic Medicines
Recruiting
Psoriatic arthritis (PsA) is a chronic inflammatory disease that affects the joints and skin in people who have psoriasis (PsO). The main aim of the study is to know how well zasocitinib (TAK-279) works in participants with active PsA based on their previous experience with specific treatments. The participants will be treated with either zasocitinib, or placebo. Participants will be in the study for up to 60 weeks.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/30/2025
Locations: Biovin Enterprises LLC dba Medvin Clinical Research | Covina, CA, Covina, California
Conditions: Psoriatic Arthritis
A Study of Zasocitinib in Adults With Psoriatic Arthritis Who Have Not Taken Biologic Medicines
Recruiting
Psoriatic arthritis (PsA) is a chronic inflammatory disease that affects the joints and skin in people who have psoriasis (PsO). The main aim of the study is to know how well zasocitinib (TAK-279) works in participants with active PsA who have not previously been treated with biologic disease-modifying antirheumatic drugs. The participants will be treated with either zasocitinib, active comparator, or placebo. Participants will be in the study for up to 60 weeks.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/30/2025
Locations: First OC Dermatology Research Inc., Fountain Valley, California
Conditions: Psoriatic Arthritis
A Clinical Study of Molnupiravir to Prevent Severe Illness From Coronavirus Disease 2019 (COVID-19) in People Who Are High Risk (MK-4482-023)
Recruiting
Researchers are looking for other ways to prevent severe illness from COVID-19. COVID-19 is a virus that most often causes mild flu or cold-like symptoms. However, people with certain health conditions or other factors have a high risk (chance) of getting severely ill from COVID-19, which can require a hospital stay or lead to death. Some people who are high risk for severe illness may be unable to take certain treatments for COVID-19 because they are not available to them, or they take other me... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/30/2025
Locations: Clinica de Salud del Valle de Salinas ( Site 3825), Castroville, California
Conditions: Coronavirus Disease (COVID-19)
A Randomized, Double-Blind, Placebo-Controlled Trial on Efficacy and Safety of Fluticasone Propionate/Albuterol Sulfate Combination in Participants 12 Years and Older With Asthma
Recruiting
The primary objective of the trial is to evaluate the efficacy of fluticasone propionate/albuterol sulfate multidose dry powder inhaler with electronic module (Fp/ABS eMDPI). Secondary objectives are: * To evaluate the efficacy of Fp/ABS eMDPI administered four times daily * To evaluate the safety and tolerability of Fp/ABS eMDPI administered four times daily over four weeks * To investigate the pharmacokinetics of Fp/ABS eMDPI, ABS eMDPI and Fp eMDPI after administration of a single dose The... Read More
Gender:
ALL
Ages:
12 years and above
Trial Updated:
07/30/2025
Locations: Teva Investigational Site 12103, Huntington Beach, California
Conditions: Asthma
A Study of CHS-114 in Combination With Toripalimab and/or Other Treatments in Participants With Advanced Solid Tumors
Recruiting
The main purpose of this study is to evaluate the safety and preliminary efficacy of CHS-114 in combination with toripalimab and/or other standard of care (SOC) compound(s) in participants with advanced or metastatic solid tumors.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/30/2025
Locations: City of Hope, Duarte, California
Conditions: Metastatic Solid Tumor, Advanced Solid Tumor
A Study to Evaluate Safety, Tolerability, and Immunogenicity of V350A and V350B in Healthy Participants (V350-001).
Recruiting
Epstein Barr virus (EBV) is a virus which can cause infectious mononucleosis and is associated with certain kinds of cancer and multiple sclerosis. Researchers are looking for new ways to prevent disease related to EBV and have developed a new study vaccine (V350A and V350B). The main goal of this study is to learn about the safety and tolerability of V350A and V350B in healthy adults.
Gender:
ALL
Ages:
Between 18 years and 30 years
Trial Updated:
07/30/2025
Locations: California Clinical Trials Medical Group managed by PAREXEL ( Site 0011), Glendale, California
Conditions: Healthy
Streamlined Treatment of Pulmonary Exacerbations in Pediatrics
Recruiting
The STOP PEDS RCT is a multicenter, parallel, open label randomized controlled trial evaluating the long-term (one year) and short-term safety and efficacy of two antibiotic treatment strategies for the management of outpatient pulmonary exacerbations (PEx) in the pediatric CF population.
Gender:
ALL
Ages:
Between 3 years and 18 years
Trial Updated:
07/30/2025
Locations: Children's Hospital of Los Angeles & Anton Yelchin Cystic Fibrosis Clinic, Los Angeles, California
Conditions: Cystic Fibrosis
A Study of a Potential Disease Modifying Treatment in Individuals at Risk for or With a Type of Early Onset AD Caused by a Genetic Mutation
Recruiting
The purpose of this research study is to test the study drug, referred to as remternetug, to determine its effectiveness for the study treatment of asymptomatic (at risk) Alzheimer disease in individuals with AD-causing mutations. This study will also investigate the effects of remternetug on biomarkers (measures of the disease including brain scans, blood and spinal fluid tests), examine safety data to identify any potential benefits or risks, and examine how well participants can tolerate remt... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/30/2025
Locations: University of California San Diego Medical Center, La Jolla, California
Conditions: Alzheimers Disease, Dementia, Alzheimers Disease, Familial
A Phase 1 Study of Anitocabtagene Autoleucel for the Treatment of Subjects With Non-oncology Plasma Cell-related Diseases
Recruiting
A Phase 1 dose-escalation study designed to evaluate the safety, tolerability, and preliminary efficacy of anito-cel in subjects with generalized myasthenia gravis (GMG). Anitocabtagene autoleucel (anito-cel) is a BCMA-directed CAR-T cell therapy.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/30/2025
Locations: UCLA Medical Center, Los Angeles, California
Conditions: Muscular Diseases, Neuromuscular Manifestations, Autoimmune, Autoimmune Diseases, Autoimmune Diseases of the Nervous System, Myasthenia Gravis, Muscle Weakness
A Study of Pembrolizumab (MK-3475) With or Without Intismeran Autogene (V940) in Participants With Non-small Cell Lung Cancer (V940-009/INTerpath-009)
Recruiting
The goal of this study is to learn if people who receive intismeran autogene and pembrolizumab after surgery are cancer-free longer than people who receive placebo and pembrolizumab. Researchers want to know if giving intismeran autogene and pembrolizumab after surgery can help prevent the cancer from coming back in people with non-small cell lung cancer (NSCLC) whose tumors did not respond completely to treatment before surgery (neoadjuvant treatment).
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/30/2025
Locations: Providence St. Jude Medical Center ( Site 0106), Fullerton, California
Conditions: Carcinoma, Non-Small-Cell Lung
A Study of Tacrolimus/Methotrexate/Ruxolitinib Versus Post-Transplant Cyclophosphamide/Tacrolimus/Mycophenolate Mofetil in Non-Myeloablative/Reduced Intensity Conditioning Allogeneic Peripheral Blood Stem Cell Transplantation (BMT CTN 2203)
Recruiting
The purpose of this study is to assess Tacrolimus/Methotrexate/Ruxolitinib versus Post-Transplant Cyclophosphamide/Tacrolimus/Mycophenolate Mofetil in Non-Myeloablative/Reduced Intensity Conditioning Allogeneic Peripheral Blood Stem Cell Transplantation
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/30/2025
Locations: Stanford Cancer Center, Palo Alto, California
Conditions: Graft-versus-host Disease (GVHD)