California is currently home to 5600 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 Learn About a Study Medicine Called Ibuzatrelvir in Adult and Adolescent Patients With COVID-19 Who Are Not Hospitalized But Are at Risk For Severe Disease
Recruiting
The purpose of the study is to evaluate whether ibuzatrelvir is effective and safe in adults and adolescents with COVID-19 who do not need to be in the hospital but who are at high risk for progression to severe disease. Eligible participants will be randomly assigned (by chance) to receive ibuzatrelvir or matching placebo orally for 5 days. Co-administration of locally available standard of care is allowed. The total duration of the study is around 6 months.
Gender:
ALL
Ages:
12 years and above
Trial Updated:
04/11/2025
Locations: National Institute of Clinical Research - Bakersfield, Bakersfield, California
Conditions: COVID-19 SARS-CoV-2 Infection
Testing the Addition of an Anti-Cancer Drug, Abemaciclib, to the Usual Chemotherapy Treatment (5-Fluorouracil) for Metastatic, Refractory Colorectal Cancer
Recruiting
This phase I trial tests the safety, side effects, and best dose of abemaciclib in combination with 5-fluorouracil and how well it works in treating patients with colorectal cancer that has spread from where it first started (primary site) to other places in the body (metastatic) and that has not responded to treatment (refractory). Abemaciclib, a type of cyclin-dependent kinase inhibitor, blocks certain proteins, which may help keep tumor cells from growing. 5-fluorouracil, a type of antimetabo... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
04/11/2025
Locations: UC Irvine Health/Chao Family Comprehensive Cancer Center, Orange, California
Conditions: Metastatic Microsatellite Stable Colorectal Carcinoma, Refractory Microsatellite Stable Colorectal Carcinoma, Stage IV Colorectal Cancer AJCC v8
LIVERAGE™ - Cirrhosis: A Study to Test Whether Survodutide Helps People With a Liver Disease Called NASH/MASH Who Have Cirrhosis
Recruiting
This study is open to adults who are at least 18 years old and have: * A confirmed liver disease called non-alcoholic steatohepatitis (NASH) or * A confirmed liver disease called metabolic-associated steatohepatitis (MASH) * BMI of 27 kg/m2 or more or * 25 kg/m2 or more if the participant is Asian. People with a history of other chronic liver diseases or high alcohol intake cannot take part in this study. The purpose of this study is to find out whether a medicine called survodutide helps peop... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
04/11/2025
Locations: Hope Clinical Research, Canoga Park, California
Conditions: Metabolic Dysfunction Associated Steatohepatitis
Randomized Double-Blind Placebo-Controlled Trial EValuating Baricitinib on PERSistent NEurologic and Cardiopulmonary Symptoms of Long COVID
Recruiting
The overarching goal of this study is to determine if baricitinib, as compared to placebo, will improve neurocognitive function, along with measures of physical function, quality of life, post-exertional malaise, effect of breathlessness on daily activities, post-COVID-19 symptom burden, and biomarkers of inflammation and viral measures, in participants with Long COVID.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
04/11/2025
Locations: University of California San Francisco, San Francisco, California
Conditions: Long COVID, Sars-CoV-2 Infection, Coronavirus Infections, COVID-19
Dose Escalation and Expansion of BBO-10203 in Advanced Solid Tumors (BREAKER-101)
Recruiting
First in human study to evaluate the safety, tolerability, and pharmacokinetics (PK) of BBO-10203, a PI3Kα:RAS breaker, alone and in combination with trastuzumab in patients with advanced solid tumors.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
04/11/2025
Locations: University of California Los Angeles, Los Angeles, California
Conditions: Solid Tumor, Adult, Metastatic Breast Cancer, Advanced Breast Cancer, HER2 Mutation-Related Tumors, HER2-positive Metastatic Breast Cancer, HER2-Positive Advanced Breast Cancer, KRAS Mutant Metastatic Colorectal Cancer, Metastatic Lung Cancer, Metastatic Colorectal Cancer, Advanced Lung Cancer
Fasedienol Nasal Spray for the Acute Treatment of Anxiety in Adults With Social Anxiety Disorder (PALISADE-4)
Recruiting
This U.S. Phase 3 clinical trial is designed to evaluate the efficacy, safety, and tolerability of the acute intranasal (i.n.) administration of Fasedienol Nasal Spray (fasedienol) (3.2 µg) to relieve symptoms of acute anxiety in adult subjects ages 18 through 65 with Social Anxiety Disorder induced by a public speaking challenge (PSC) in a clinical setting. In addition, safety and tolerability of i.n. administration of 3.2 µg of fasedienol, as-needed, up to 6 times per day for up to 12 months,... Read More
Gender:
ALL
Ages:
Between 18 years and 65 years
Trial Updated:
04/11/2025
Locations: Vistagen Clinical Site, Bellflower, California
Conditions: Social Anxiety Disorder (SAD)
Study of Oral Weekly GS-1720 and GS-4182 Compared With Biktarvy in People With HIV-1 Who Have Not Been Treated
Recruiting
The goal of this clinical study is to learn more about the experimental drugs GS-1720 (an oral, long-acting integrase strand transfer inhibitor (INSTI)) and GS-4182 (a prodrug of Lenacapavir (LEN)); to compare the combination of GS-1720 and GS-4182 with the current standard-of-care treatment bictegravir/emtricitabine/tenofovir alafenamide (B/F/TAF) (Biktarvy), to see if the combination of GS-1720 and GS-4182 is safe and if it works for treating human immunodeficiency virus type 1 (HIV-1) infecti... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
04/11/2025
Locations: The Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center, Torrance, California
Conditions: HIV-1-infection
Study of Natriuretic Peptide Receptor 1 (NPR1) Antagonist in Adult Patients With Postural Orthostatic Tachycardia Syndrome (POTS)
Recruiting
This study is researching an experimental drug called REGN7544 (called "study drug"). The study is focused on participants with POTS. The aim of the study is to see how safe, tolerable, and effective the study drug is. The study is looking at several other research questions, including: * How the study drug changes heart rate and blood pressure in participants with POTS * What side effects may happen from taking the study drug * How much study drug is in the blood at different times * Whether... Read More
Gender:
ALL
Ages:
Between 18 years and 55 years
Trial Updated:
04/11/2025
Locations: North County Neurology Associates, Carlsbad, California
Conditions: Postural Orthostatic Tachycardia Syndrome (POTS)
A Study to Evaluate the Efficacy and Safety of ESK-001 in Patients With Moderate to Severe Plaque Psoriasis
Recruiting
The goal of this clinical trial is to learn if ESK-001 works to treat moderate to severe plaque psoriasis. The main questions it aims to answer are: * Does ESK-001 reduce the severity of people's psoriasis? * How safe is ESK-001 in people with moderate to severe plaque psoriasis? The study includes 2 comparators: a placebo control (a 'dummy' tablet that does not contain the medicine ESK-001 but looks just like it) and an active control (apremilast, which is a medicine approved to treat psorias... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
04/11/2025
Locations: Exalt Clinical Research, Chula Vista, California
Conditions: Plaque Psoriasis
ASSESS ALL ALS Study
Recruiting
The ALL ALS Clinical Research Consortium is establishing research to collect a wide range of samples, clinical information and measurements from Amyotrophic Lateral Sclerosis (ALS) symptomatic, ALS gene carriers and control cohorts. This consortium is being funded by the National Institutes of Health/National Institute of Neurological Disorders and Stroke (NIH/NINDS) and managed by two clinical coordinating centers (CCC) at Barrow Neurological Institute and Massachusetts General Hospital. The cl... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
04/11/2025
Locations: University of California, Irvine, Irvine, California
Conditions: Amyotrophic Lateral Sclerosis
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:
04/11/2025
Locations: Shiley Marcos Alzheimer's Disease Center, San Diego, California
Conditions: Mild Cognitive Impairment, Alzheimer Disease, Alzheimer's Disease
A Study to Assess the Efficacy, Safety and Tolerability of VLS-01 Buccal Film, Compared to Placebo in Patients With Treatment Resistant Depression (ELUMINA)
Recruiting
This Phase 2 study (protocol number VLS-01-203) will determine the efficacy, safety, and tolerability of short-term treatment with a VLS-01 transmucosal buccal film (VLS-01-BU) in patients with treatment resistant Major Depressive disorder (TRD) and will characterize the onset and durability of antidepressant effects of VLS-01-BU versus placebo.
Gender:
ALL
Ages:
Between 18 years and 65 years
Trial Updated:
04/11/2025
Locations: Collaborative Neuroscience Research, LLC, Los Alamitos, California
Conditions: Treatment Resistant Depression