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.
A Phase 2 in Adult Subjects With Hereditary Angioedema
Recruiting
A Phase 2 in Adult Subjects with Hereditary Angioedema
Gender:
ALL
Ages:
Between 18 years and 70 years
Trial Updated:
08/03/2025
Locations: Raffi Tachdjian, MD Inc, Santa Monica, California
Conditions: Hereditary Angioedema (HAE)
TREAD: Time Restricted Eating Intervention for Alzheimer's Disease
Recruiting
The goal of this clinical trial is to learn if restricting the time of eating to allow for prolonged fasting at night may reduce sleep disturbances, cognitive decay, and pathology in patients diagnosed with Mild Cognitive Impairment (MCI) or early to moderate Alzheimer's disease (AD). It will also learn about the feasibility of practicing 14 h of nightly fasting in this group of older adults. The main questions it aims to answer are: * Does prolonged nightly fasting of 14 h can reduce markers o... Read More
Gender:
ALL
Ages:
60 years and above
Trial Updated:
08/03/2025
Locations: Shiley Marcos Alzheimer's Disease Center, San Diego, California
Conditions: Mild Cognitive Impairment, Alzheimer Disease, Alzheimer's Disease
Blood Pressure Effects on Cognition and Brain Blood Flow in PD
Recruiting
Parkinson's disease (PD) is the second most common neurodegenerative disorder worldwide. Besides causing symptoms that impair movement, PD also causes non-motor symptoms, such as problems thinking and orthostatic hypotension (OH), i.e., low blood pressure (BP) when standing. About one-third of people with PD have OH, which can cause sudden, temporary symptoms while upright, including lightheadedness, dizziness, and fainting. People with PD and OH can also experience problems thinking that happen... Read More
Gender:
ALL
Ages:
50 years and above
Trial Updated:
08/03/2025
Locations: University of California San Diego, San Diego, California
Conditions: Parkinson Disease, Orthostatic Hypotension, Dysautonomia
Evaluation of Talazoparib, a PARP Inhibitor, in Patients With Somatic BRCA Mutant Metastatic Breast Cancer: Genotyping Based Clinical Trial
Recruiting
This research is to evaluate the effectiveness of Talazoparib as a potential treatment for metastatic breast cancer with a BRCA 1 or BRCA 2 mutation.
Gender:
FEMALE
Ages:
18 years and above
Trial Updated:
08/03/2025
Locations: UCSF Medical Center-Mission Bay/Benioff Children's Hospital, San Francisco, California
Conditions: Breast Cancer
Assessing Benefits and Harms of Cannabis/Cannabinoid Use Among Cancer Patients Treated in Community Oncology Clinics
Recruiting
This is a multi-site clinical study enrolling 2000 newly diagnosed patients with breast, colorectal, melanoma, non-Hodgkin lymphoma, or non-small cell lung cancer, who are planning to receive one or more systemic cancer directed therapies with chemotherapy and/or (immune checkpoint inhibitors) ICIs.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/02/2025
Locations: Kaiser Permanente-Deer Valley Medical Center, Antioch, California
Conditions: Breast Carcinoma, Colorectal Carcinoma, Lung Non-Small Cell Carcinoma, Melanoma, Non-Hodgkin Lymphoma
Testing the Addition of an Anti-cancer Drug, ASTX727 (Cedazuridine, Decitabine), to Chemotherapy (Paclitaxel) and Immunotherapy (Pembrolizumab) for Metastatic Triple-Negative Breast Cancer
Recruiting
This phase I trial tests the safety, side effects, and best dose of ASTX727 when given in combination with a usual approach of treatment with paclitaxel and pembrolizumab in patients with triple-negative breast cancer that has spread from where it first started (primary site) to other places in the body (metastatic). The usual approach is defined as care most people get for this type of cancer. The usual approach for patients with metastatic triple negative breast cancer who are not in a study i... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/02/2025
Locations: UC Irvine Health Cancer Center-Newport, Costa Mesa, California
Conditions: Anatomic Stage III Breast Cancer AJCC v8, Anatomic Stage IV Breast Cancer AJCC v8, Metastatic Triple-Negative Breast Carcinoma, Unresectable Triple-Negative Breast Carcinoma
Pain Relief After Trapeziectomy: Ibuprofen & Acetaminophen Versus Oxycodone
Recruiting
In the US, pain management after surgery for surgical treatment of osteoarthritis at the base of the thumb typically consists of prescription opioids during the early recovery phase. Given the highly addictive nature of prescription opioids, guidelines are being evaluated by hand surgeons to reduce opioid use while still maintaining pain control after surgery. A promising approach is to use non-narcotic medication as the first line of treatment. The purpose of this study is to demonstrate the ef... Read More
Gender:
ALL
Ages:
45 years and above
Trial Updated:
08/02/2025
Locations: Stanford Health Care, Redwood City, California
Conditions: Pain, Postoperative, Osteoarthritis Thumb
I-SPY TRIAL: Neoadjuvant and Personalized Adaptive Novel Agents to Treat Breast Cancer
Recruiting
The purpose of this study is to further advance the ability to practice personalized medicine by learning which new drug agents are most effective with which types of breast cancer tumors and by learning more about which early indicators of response (tumor analysis prior to surgery via magnetic resonance imaging (MRI) images along with tissue and blood samples) are predictors of treatment success.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/02/2025
Locations: City of Hope, Duarte, California
Conditions: Breast Neoplasms, Breast Cancer, Breast Tumors, Angiosarcoma, TNBC - Triple-Negative Breast Cancer, HER2-positive Breast Cancer, HER2-negative Breast Cancer, Hormone Receptor Positive Tumor, Hormone Receptor Negative Tumor, Early-stage Breast Cancer, Locally Advanced Breast Cancer
An Observational Study of Individuals With Isolated Dystonia
Recruiting
This is an observational study in individuals with isolated (or primary) dystonia that involves more than one body region. The purpose of the study is to collect detailed information to help your physician and other researchers understand how dystonia impacts your and other patients' lives and how the disease changes over time. The study may also help researchers better understand the clinical scales that are commonly used to evaluate dystonia symptoms and how they affect various areas of life s... Read More
Gender:
ALL
Ages:
Between 12 years and 65 years
Trial Updated:
08/01/2025
Locations: Vima Site #010, Aliso Viejo, California
Conditions: Isolated/Primary Dystonia That Affects More Than One Region of the Body
A Study of LY4088044 in Healthy Participants
Recruiting
The purpose of this study is to evaluate how well LY4088044 is tolerated and what side effects may occur in healthy participants. The study drug will be administered either subcutaneously (SC) (under the skin) or intravenously (IV) (into a vein in the arm). Blood tests will be performed to check how much LY4088044 gets into the bloodstream and how long it takes the body to eliminate it. The study will last up to approximately 92 weeks for Parts A, B, and C, excluding screening.
Gender:
ALL
Ages:
Between 18 years and 65 years
Trial Updated:
08/01/2025
Locations: Collaborative Neuroscience Network - CNS, Los Alamitos, California
Conditions: Healthy
A Study to Investigate Ataciguat for Slowing the Progression of Moderate Calcific Aortic Valve Stenosis
Recruiting
The purpose of this study is to evaluate if ataciguat slows the progression of moderate calcific aortic valve stenosis in adults.
Gender:
ALL
Ages:
50 years and above
Trial Updated:
08/01/2025
Locations: National Heart Institute, Beverly Hills, California
Conditions: Moderate Aortic Valve Stenosis
BBO-11818 in Adult Subjects With KRAS Mutant Cancer
Recruiting
A first in human study to evaluate the safety and preliminary antitumor activity of BBO-11818, a pan-KRAS inhibitor, in subjects with locally advanced unresectable or metastatic KRAS mutant solid tumors.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/01/2025
Locations: University of California San Diego Moores Cancer Center, San Diego, California
Conditions: Non-Small Cell Lung Cancer, NSCLC, PDAC - Pancreatic Ductal Adenocarcinoma, CRC (Colorectal Cancer), Metastatic Non-Small Lung Cell Cancer, Metastatic Colorectal Cancer (CRC), KRAS G12A, KRAS G12C, KRAS G12D, KRAS G12S, KRAS G12V, Metastatic Pancreatic Ductal Adenocarcinoma, Advanced Lung Carcinoma, Solid Tumor, Adult