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.
Nonhealing Diabetic Foot Ulcers Treated With Standard of Care (SOC) Alone or Standard of Care and Amnion-Intermediate-Chorion (AIC)
Recruiting
The purpose of this study is to determine how well our dHPT (Dehydrated Human Placental Tissue) Product and Standard of Care work when compared to Standard of Care alone in achieving complete closure of diabetic foot.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/18/2025
Locations: 004, Mission Viejo, California
Conditions: Diabetic Foot Ulcer
Performance of Systane PRO Versus Refresh Optive Mega-3
Recruiting
Single site, prospective, double-masked, randomized-controlled, cross-over study of the subjective and objective performance of 2 different eyedrops. Subjects will be assessed at a screening visit, and 3 follow-up visits. Clinical evaluations will include patient questionnaires.
Gender:
ALL
Ages:
Between 18 years and 65 years
Trial Updated:
06/18/2025
Locations: Scripps Poway Eyecare & Optometry, San Diego, California
Conditions: Dry Eye
A Study to Learn More About the Effects and Long-Term Safety of BIIB141 (Omaveloxolone) in Participants With Friedreich's Ataxia Aged 2 to 15 Years Old
Recruiting
In this study, researchers will learn more about the effects and safety of BIIB141, also known as omaveloxolone or SKYCLARYS®. This drug has been approved, or made available for doctors to prescribe, for people with Friedreich's Ataxia (FA) who are at least 16 years old. But, it is not yet available for children and teens with FA who are younger than 16 years old. The main objective of this study is to learn how BIIB141 works in the body and about its safety in children and teens who are 2 to 15... Read More
Gender:
ALL
Ages:
Between 2 years and 15 years
Trial Updated:
06/18/2025
Locations: UCLA Neurology Outpatient Clinic at Westwood, Los Angeles, California
Conditions: Friedreich Ataxia
A Study of Tirzepatide (LY3298176) Compared With Placebo in Adults With Type 1 Diabetes and Obesity or Overweight
Recruiting
The main purpose of this study is to find out how well and how safely tirzepatide works in adults who have type 1 diabetes and obesity or overweight. Participation in the study will last about 49 weeks.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/18/2025
Locations: Sansum Diabetes Research Institute, Goleta, California
Conditions: Type 1 Diabetes, Obesity, Overweight
A Study to Investigate Effectiveness of Tirzepatide Following Initiation of Ixekizumab in Participants With Active Psoriatic Arthritis and Overweight or Obesity in Clinical Practice (TOGETHER AMPLIFY-PsA)
Recruiting
The main purpose of this study is to assess the effectiveness of adding tirzepatide to ixekizumab therapy in standard clinical practice in participants with moderate-to-severe PsA and obesity or overweight with at least 1 weight-related comorbidity. The study will last up to 12 months.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/18/2025
Locations: Medvin Clinical Research - Apple Valley, Apple Valley, California
Conditions: Psoriatic Arthritis, Overweight or Obesity
A Study of Retatrutide (LY3437943) in the Maintenance of Weight Reduction in Individuals With Obesity
Recruiting
This is a study of retatrutide in participants with obesity. The main purpose is to learn more about how retatrutide maintains body weight loss. The study will have two treatment phases: an 80 week lead-in phase in which all participants will take retatrutide dose 1 and a 36 week randomized, double-blinded phase in which participants will either take retatrutide dose 1, retatrutide dose 2, or switch to placebo. Participation in the study will last around 125 weeks.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/18/2025
Locations: Southern California Clinical Research, Santa Ana, California
Conditions: Obesity
A Study of Breast Cancer Risk Factors and Outcomes of People in Florida
Recruiting
The purpose of this study is to understand why different people have different risks and outcomes for breast cancer and non-breast cancer.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/18/2025
Locations: University of California, Los Angeles (Specimen Analysis only), Los Angeles, California
Conditions: Breast Cancer, Breast Neoplasms, Breast Diseases
Metformin for the Treatment of Insulin Resistance in Women With Stage I-III Breast Cancer Completing Chemotherapy
Recruiting
This phase III trial evaluates how often women develop insulin resistance and type-2 diabetes and compares metformin with usual care to usual care alone in treating insulin resistance in women with stage I-III breast cancer after chemotherapy. Insulin resistance occurs when cells stop responding to insulin and is a risk factor for developing diabetes and heart disease. Higher levels of insulin have been shown to be associated with aggressive breast cancer. Metformin hydrochloride decreases the a... Read More
Gender:
FEMALE
Ages:
18 years and above
Trial Updated:
06/18/2025
Locations: City of Hope Medical Center, Duarte, California
Conditions: Anatomic Stage I Breast Cancer AJCC v8, Anatomic Stage II Breast Cancer AJCC v8, Anatomic Stage III Breast Cancer AJCC v8, Invasive Breast Carcinoma
Optimization of Beta-lactam Dosing in Critically Ill Patients With Cystatin C (OPTIMIZE-GNI)
Recruiting
The purpose of this study is to evaluate the abilities of Cystatin C (CysC) and CysC-based estimated Glomerular Filtration Rate (eGFR) equations to characterize the pharmacokinetics (PK) profiles of meropenem and cefepime relative to Serum Creatinine (SCR), Serum Creatinine based Equation (SCRE)and iohexol at the population and individual levels in critically ill adult patients with suspected or documented AMR Gram-negative infections. We hypothesize that CysC and CysC-based eGFR equations will... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/18/2025
Locations: Harbor UCLA Medical Center - Medicine - Infectious Diseases, Torrance, California
Conditions: Bacterial Infection
A Study to Investigate Changes in Symptoms in Adult Participants With Chronic Rhinosinusitis With Nasal Polyposis Initiating Treatment With Tezepelumab
Recruiting
The main objective of this study is to evaluate treatment outcomes of tezepelumab among participants with physician-determined surgery-eligible CRSwNP, with or without asthma. Study details include: 1. The study duration will be up to 40 weeks. 2. The treatment duration will be up to 24 weeks. 3. The visit frequency will be once every 4 weeks (Q4W).
Gender:
ALL
Ages:
Between 18 years and 130 years
Trial Updated:
06/18/2025
Locations: Research Site, Newport Beach, California
Conditions: Chronic Rhinosinusitis With Nasal Polyps
A U.S. Registry of Eosinophilic Esophagitis Adolescent and Adult Patients Treated With DUPIXENT® As Standard of Care
Recruiting
This observational research study is to better understand patients with eosinophilic esophagitis (EoE) who have recently been prescribed DUPIXENT® (dupilumab). The purpose of this research study is to look at how DUPIXENT is used in normal care of patients with EoE. Possible benefits to others include a better understanding of EoE and helping to inform research and clinical trial design leading to treatment decisions in this patient population going forward. Patient questionnaires will measure... Read More
Gender:
ALL
Ages:
12 years and above
Trial Updated:
06/18/2025
Locations: University of Southern California Keck School of Medicine, Los Angeles, California
Conditions: Eosinophilic Esophagitis (EoE)
Comparing New Treatments for People With Newly Diagnosed Acute Myeloid Leukemia That Has an IDH2 Gene Change (A MyeloMATCH Treatment Trial)
Recruiting
This phase II MyeloMATCH treatment trial studies how well ASTX727 and venetoclax plus enasidenib works compared to ASTX727 and venetoclax alone for the treatment of older patients with newly diagnosed acute myeloid leukemia (AML) or younger patients who are considered unfit for standard treatment, and who have an abnormal change (mutation) in the IDH2 gene. This gene mutation can cause AML to grow and spread. This trial is being done to see if adding enasidenib to the usual treatment can help mo... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/18/2025
Locations: Alta Bates Summit Medical Center-Herrick Campus, Berkeley, California
Conditions: Acute Myeloid Leukemia