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.
Testing Nivolumab and Ipilimumab Immunotherapy With or Without the Targeted Drug Cabozantinib in Recurrent, Metastatic, or Incurable Nasopharyngeal Cancer
Recruiting
This phase II trial tests how well nivolumab and ipilimumab immunotherapy with or without cabozantinib works in treating patients with nasopharyngeal cancer that has come back (after a period of improvement) (recurrent), has spread from where it first started (primary site) to other places in the body (metastatic), or for which no treatment is currently available (incurable). Immunotherapy with monoclonal antibodies, such as nivolumab and ipilimumab, may help the body's immune system attack the... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/12/2025
Locations: UCI Health - Chao Family Comprehensive Cancer Center and Ambulatory Care, Irvine, California
Conditions: Stage IV Nasopharyngeal Carcinoma AJCC v8, Metastatic Nasopharyngeal Carcinoma, Recurrent Nasopharyngeal Carcinoma
Larotrectinib to Enhance RAI Avidity in Differentiated Thyroid Cancer
Recruiting
Papillary thyroid cancer (PTC) is the most common form of differentiated thyroid cancer (DTC). The traditional first line treatment for patients with advanced DTC after surgical resection is radioactive iodine (RAI) therapy. However, less than a quarter of patients with lung metastases will achieve a complete response to RAI therapy, and this therapy carries the risk of pulmonary fibrosis and an increasingly recognized risk of secondary malignancies.
Gender:
ALL
Ages:
Between 2 years and 99 years
Trial Updated:
08/12/2025
Locations: University of California, San Francisco, San Francisco, California
Conditions: Differentiated Thyroid Cancer, Pediatric Cancer, Cancer, Cancer, Thyroid
CA-4948 Added to Standard Chemotherapy to Treat Metastatic or Unresectable Pancreatic Cancer
Recruiting
This phase I trial tests the safety, side effects, and best dose of emavusertib (CA-4948) in combination with gemcitabine and nab-paclitaxel in treating patients with pancreatic ductal adenocarcinoma that has spread from where it first started (primary site) to other places in the body (metastatic) or cannot be removed by surgery (unresectable). CA-4948 is in a class of medications called kinase inhibitors. It works by blocking the action of abnormal proteins called interleukin-1 receptor-associ... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/12/2025
Locations: City of Hope Comprehensive Cancer Center, Duarte, California
Conditions: Metastatic Pancreatic Ductal Adenocarcinoma, Stage III Pancreatic Cancer AJCC v8, Stage IV Pancreatic Cancer AJCC v8, Unresectable Pancreatic Ductal Adenocarcinoma
A Research Study to Evaluate the Efficacy and Safety of Cenerimod in Subjects Suffering From Systemic Lupus Erythematosus
Recruiting
The goal of this clinical trial is to see how well cenerimod reduces symptoms of Systemic Lupus Erythematous in adult patients with moderate to severe symptoms. The main questions it aims to answer are: * How well cenerimod works on top of the treatment already being administered. * How safe cenerimod is for adult patients with Systemic Lupus Erythematosus. Researchers will compare one dose of cenerimod and a placebo to see how well cenerimod works when it is added to the treatment already bei... Read More
Gender:
ALL
Ages:
Between 18 years and 75 years
Trial Updated:
08/12/2025
Locations: UCSD Perlman Medical Offices, La Jolla, California
Conditions: Lupus Erythematosus, Systemic
A Research Study to Evaluate the Effects of a New Oral Medicine Called Cenerimod in Adults With Systemic Lupus Erythematosus
Recruiting
The goal of this clinical trial is to see how well cenerimod reduces symptoms of Systemic Lupus Erythematosus in adult patients with moderate to severe symptoms. The main questions it aims to answer are: * How well cenerimod works on top of the treatment already being administered. * How safe cenerimod is for adult patients with Systemic Lupus Erythematosus. Researchers will compare one dose of cenerimod and a placebo to see how well cenerimod works when it is added to the treatment already be... Read More
Gender:
ALL
Ages:
Between 18 years and 75 years
Trial Updated:
08/12/2025
Locations: Providence Medical Foundation, Fullerton, California
Conditions: Lupus Erythematosus, Systemic
Safety and Effectiveness of Giroctocogene Fitelparvovec or Fidanacogene Elaparvovec in Patients With Hemophilia A or B Respectively
Recruiting
A study to learn about the long-term safety and efficacy of giroctocogene fitelparvovec or fidanacogene elaparvovec in patients with hemophilia A or hemophilia B respectively, who have received treatment through prior participation in a Pfizer-sponsored clinical trial. Data collection and participant visits will be based on standard of care.
Gender:
MALE
Ages:
18 years and above
Trial Updated:
08/12/2025
Locations: UC Davis Health, Sacramento, California
Conditions: Hemophilia A, Hemophilia B
A Trial That Evaluates Disease Characteristics in Hemophilia B Adult Male Participants Receiving Prophylaxis With Standard of Care Factor IX Protein (FIX) Replacement Therapy
Recruiting
This study is focused on males who have Hemophilia B and who need regular preventive treatment with factor IX protein (FIX) replacement therapy to prevent and also to control their bleeding events. The aim of the study is to gather at least 6 months of information on bleeding events for each individual participant while they continue to use their usual FIX replacement therapy. There is no experimental treatment being tested in this study. The study is informational, and part of a larger program... Read More
Gender:
MALE
Ages:
16 years and above
Trial Updated:
08/12/2025
Locations: Orthopaedic Hemophilia Treatment Center, Los Angeles, California
Conditions: Hemophilia B
Testing the Safety of the Anti-Cancer Drugs Durvalumab and Olaparib During Radiation Therapy for Locally Advanced Unresectable Pancreatic Cancer
Recruiting
This phase I trial tests the safety and tolerability of olaparib in combination with durvalumab and radiation therapy in patients with pancreatic cancer that has spread to nearby tissue or lymph nodes (locally advanced) and cannot be removed by surgery (unresectable). Olaparib is an inhibitor of PARP, an enzyme that helps repair deoxyribonucleic acid (DNA) when it becomes damaged. Blocking PARP may help keep cancer cells from repairing their damaged DNA, causing them to die. PARP inhibitors are... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/12/2025
Locations: UCI Health - Chao Family Comprehensive Cancer Center and Ambulatory Care, Irvine, California
Conditions: Stage II Pancreatic Cancer AJCC v8, Stage III Pancreatic Cancer AJCC v8, Locally Advanced Pancreatic Carcinoma, Unresectable Pancreatic Carcinoma
Prospective Data Registry and Quality of Life Assessment of Patients Undergoing Radiotherapy With the RefleXion Medical Radiotherapy System
Recruiting
The purpose of this prospective cohort study is to assess clinical and quality of life measures as well as to define the severity of adverse effects for the use of the RefleXion system to deliver intensity-modulated radiotherapy (IMRT), stereotactic body radiotherapy (SBRT), or SCINTIX Biology-guided radiotherapy (BgRT) in standard of care (SOC) use in the treatment of local,loco-regionally advanced, and oligometastatic malignancies. In addition, patient costs and charges will be analyzed to qua... Read More
Gender:
ALL
Ages:
All
Trial Updated:
08/12/2025
Locations: City Of Hope, Duarte, California
Conditions: Cancer, Cancer Central Nervous System, Cancer Thoracic, Cancer, Gastrointestinal, Cancer Gynecologic, Cancer, Genito-Urinary, Cancers Lymphatic, Cancer Head and Neck
A Study of ASP2138 Given by Itself or Given With Other Cancer Treatments in Adults With Stomach Cancer, Gastroesophageal Junction Cancer, or Pancreatic Cancer
Recruiting
Claudin 18.2 protein, or CLDN18.2 is a protein found on cells in the digestive system. It is also found on some tumors. Researchers are looking at ways to attack CLDN18.2 to help control tumors. ASP2138 is thought to bind to CLDN18.2 and a protein on a type of immune cell called a T-cell. This "tells" the immune system to attack the tumor. ASP2138 is a potential treatment for people with stomach cancer, gastroesophageal junction cancer (GEJ cancer) or pancreatic cancer. GEJ is where the tube tha... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/12/2025
Locations: University of California Irvine Medical Center, Orange, California
Conditions: Gastric Adenocarcinoma, Gastroesophageal Junction (GEJ) Adenocarcinoma, Pancreatic Adenocarcinoma
A Diagnostic for the Early Detection of Bladder Cancer
Recruiting
To improve upon the non-invasive detection of bladder cancer by further validating a multiplex ELISA assay directed at a bladder cancer-associated diagnostic signature in voided urine samples of patients with a high risk of developing bladder cancer.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/12/2025
Locations: Long Beach VA Healthcare System, Long Beach, California
Conditions: Bladder Cancer
Safety and Efficacy of PC945 (Opelconazole) in Combination With Other Antifungal Therapy for the Treatment of Refractory Invasive Pulmonary Aspergillosis (OPERA-T Study)
Recruiting
To assess the safety and efficacy of nebulized PC945 in combination with systemic antifungal therapy for the treatment of refractory IPA
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/12/2025
Locations: Clinical Research Site 029, Duarte, California
Conditions: Refractory IPA