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.
Optimal Intervention to Full Viral Suppression: Text Me, Alexis!
Recruiting
Text Me, Alexis! is a three-arm randomized controlled trial (RCT) to determine the optimal and most cost-effective intervention for advancing trans women living with HIV to full viral suppression. Participants will be randomized (1:1:1) to Peer Health Navigation (PHN) alone, SMS (text messaging) alone, or PHN+SMS. Participants in the PHN alone and PHN+SMS arms will receive unlimited navigation sessions over 3 months. Participants in the SMS alone and PHN+SMS arms will receive 3 daily theory-base... Read More
Gender:
MALE
Ages:
18 years and above
Trial Updated:
07/09/2025
Locations: Friends Community Center, Los Angeles, California
Conditions: HIV
Comparison of Methods for Recording Post Operative Pain
Recruiting
The purpose of the current study is to identify the optimal method of collection of pain intensity data. The study will compare three collection methods: a hand-written pain journal, a smartphone app, and a novel electronic pain recorder device. Patients will be randomly assigned to one of three methods and instructed to record their pain level as often as they like. The number of pain intensity recordings per day will then be compared across groups.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/09/2025
Locations: Zuckerberg San Francisco General Hospital, San Francisco, California
Conditions: Pain, Postoperative
Trial to Visualize the Ureters With Nizaracianine Triflutate in Adults Undergoing Abdominopelvic Surgery
Recruiting
The goal of this clinical trial is to determine if the drug Nizaracianine Triflutate can help surgeons see and avoid the ureters during abdominopelvic surgery. The ureters are thin-wall, collapsible tubes that connect the kidneys to the bladder. They are difficult to see during surgery and are sometimes damaged accidentally. The main questions to answer are: 1) is this drug safe for use in patients undergoing abdominopelvic surgery and 2) can the drug see the ureters while simultaneously providi... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/09/2025
Locations: Cedars Sinai Medical Center, Los Angeles, California
Conditions: Injury of Ureter During Surgery (Disorder)
Nasal Steroids, Irrigation, Oral Antibiotics, and Subgroup Targeting for Effective Management of Sinusitis
Recruiting
Sinus infections are sometimes treated with oral antibiotics or nasal steroid sprays, while some patients get better on their own. Some patients may wait a few days or use common over-the-counter remedies to see if their symptoms improve without further treatment. Sometimes this is enough to help patients wait a few days to see if their infection clears up without needing to use antibiotics or nasal steroid sprays. The overall goal of this clinical trial to see which specific groups of patients... Read More
Gender:
ALL
Ages:
Between 18 years and 75 years
Trial Updated:
07/09/2025
Locations: University of California, Los Angeles, Los Angeles, California
Conditions: Sinus Infection, Acute Sinusitis
The Fourth Left Atrial Appendage Occlusion Study
Recruiting
LAAOS-4 aims to determine if catheter-based endovascular left atrial appendage occlusion prevents ischemic stroke or systemic embolism in participants with atrial fibrillation, who remain at high risk of stroke, despite receiving ongoing treatment with oral anticoagulation.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/09/2025
Locations: Memorial Health Services, Fountain Valley, California
Conditions: Atrial Fibrillation, Stroke, Ischemic, Systemic Embolism
SMART TRENDS Study
Recruiting
A multicenter, interventional, feasibility comparison with historical controls
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/09/2025
Locations: UC Davis Medical Center, Sacramento, California
Conditions: Moderate to High-risk Noncardiac Surgery
Nutrition for Precision Health, Powered by the All of Us
Recruiting
The goal of this investigational study is to develop algorithms that predict human response to foods. The main question it aims to answer are: * How does varying foods and eating patterns impact one's biological and physiological responses? * In what ways can novel dietary assessment measures be used to improve dietary assessments and to prescribe assessments to people in future research with increased precision? * Can artificial intelligence and machine learning techniques be combined to presc... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/09/2025
Locations: USDA Western Human Nutrition Research Center, Davis, California
Conditions: Nutrition, Health, Dietary Habits
Proximal Internal Carotid Artery Acute Stroke Secondary to Tandem or Local Occlusion Thrombectomy Trial
Recruiting
The primary objective is to establish the efficacy of intra-arterial (IA) mechanical thrombectomy (MT) with extracranial proximal carotid artery acute stenting versus non-stenting approaches in patients with acute ischemic stroke (AIS) from intracranial vessel occlusion (IVO) in the anterior circulation and have a proximal carotid occlusive disease (occlusion or severe stenosis).
Gender:
ALL
Ages:
Between 18 years and 79 years
Trial Updated:
07/09/2025
Locations: Glendale Adventist Medical Center, Glendale, California
Conditions: Acute Ischemic Stroke
Study of JANX007 in Subjects With Metastatic Castration-Resistant Prostate Cancer (ENGAGER-PSMA-01)
Recruiting
This study is a first-in-human, Phase 1, open-label, multicenter study to assess the safety, tolerability, pharmacokinetic (PK), pharmacodynamic (PD), and the preliminary efficacy of JANX007 in adults with metastatic castration-resistant prostate cancer (mCRPC).
Gender:
MALE
Ages:
Between 18 years and 100 years
Trial Updated:
07/09/2025
Locations: UCLA Department of Medicine, Los Angeles, California
Conditions: Prostate Cancer, Metastatic Castration-resistant Prostate Cancer, Castration Resistant Prostatic Cancer
Evaluation of VX-121/Tezacaftor/Deutivacaftor in Cystic Fibrosis (CF) Participants 1 Through 11 Years of Age
Recruiting
The purpose of this study is to evaluate the pharmacokinetics, safety, tolerability and efficacy of VX-121/tezacaftor/deutivacaftor (VX-121/TEZ/D-IVA) in CF participants with at least 1 triple combination responsive (TCR) mutation in the cystic fibrosis transmembrane conductance regulator (CFTR) gene.
Gender:
ALL
Ages:
Between 1 year and 11 years
Trial Updated:
07/09/2025
Locations: Children's Hospital of Orange County, Orange, California
Conditions: Cystic Fibrosis
Evaluation of RBS2418 in Subjects With Advanced, Metastatic Solid Tumors
Recruiting
RBS2418 (investigational product) is a specific immune modulator, working through ectonucleotide pyrophosphatase/phosphodiesterase I (ENPP1), designed to lead to anti-tumor immunity by increasing endogenous 2'-3'-cyclic guanosine monophosphate-adenosine monophosphate (cGAMP) and adenosine triphosphate (ATP levels) and reducing adenosine production in the tumors. RBS2418 has the potential to be an important therapeutic option for subjects both as monotherapy and in combination with other cancer t... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/09/2025
Locations: Stanford Cancer Institute, Palo Alto, California
Conditions: Advanced Cancer
ALLIANCE AVIV: Safety and Effectiveness of the SAPIEN X4 Transcatheter Heart Valve in Failing Aortic Bioprosthetic Valves
Recruiting
The objective of this study is to establish the safety and effectiveness of the Edwards SAPIEN X4 Transcatheter Heart Valve (THV) in subjects who are at high or greater risk with a failing aortic bioprosthetic valve.
Gender:
ALL
Ages:
All
Trial Updated:
07/09/2025
Locations: Hoag Memorial Hospital Presbyterian, Newport Beach, California
Conditions: Aortic Valve Insufficiency, Aortic Valve Stenosis