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.
The Influence of Honey-flavored Yogurt on Low-grade Inflammation and Gut Health in Middle to Older Aged Women.
Recruiting
A randomized, double-blind, crossover dietary intervention trial will test the effects of 4 weeks of daily honey-flavored yogurt intake on markers of inflammation (Th17 cytokines) and oxidative stress (NOX2, UA, RSNO) and associative changes with microbial derived metabolites (SCFAs, BAs, ellagitannins), metabolism and the fecal microbiome. The above suite of selected markers will capture diet-induced systemic changes in inflammation and oxidative stress, while assessing associated microbial cha... Read More
Gender:
FEMALE
Ages:
Between 45 years and 65 years
Trial Updated:
07/31/2025
Locations: University of California, Davis; Department of Nutrition, Davis, California
Conditions: Overweight
A Study to Assess the Efficacy, Safety, Pharmacodynamics, and Pharmacokinetics of Tazemetostat in Combination With Lenalidomide Plus Rituximab Versus Placebo in Combination With Lenalidomide Plus Rituximab in Adult Patients at Least 18 Years of Age With Relapsed/Refractory Follicular Lymphoma.
Recruiting
The participants of this study would have relapsed/refractory follicular lymphoma. Follicular lymphoma is a type of blood cancer. It is referred to as 'relapsed' when the disease has come back after a period of improvement after that follows a treatment regimen and 'refractory' when treatment no longer works. Stage 1 of this trial will study the safety and the level that adverse effects of each of the study drug combinations can be tolerated (known as tolerability). It is also designed to esta... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/31/2025
Locations: TOI - Clinical Research, Cerritos, California
Conditions: Relapsed/Refractory Follicular Lymphoma, Follicular Lymphoma, Refractory Follicular Lymphoma
Study to Learn More About the Safety and Effectiveness of the Drug VITRAKVI During Routine Use in Patients With TRK Fusion Cancer Which is Locally Advanced or Spread From the Place Where it Started to Other Places in the Body
Recruiting
In this observational study researcher want to learn more about the effectiveness of drug VITRAKVI (generic name: larotrectinib) and how well the drug is tolerated during routine use in patients with TRK fusion cancer which is locally advanced or spread from the place where it started to other places in the body. TRK fusion cancer is a term used to describe a variety of common and rare cancers that are caused by a change to the NTRK (Neurotrophic Tyrosine Kinase) gene called a fusion. During thi... Read More
Gender:
ALL
Ages:
All
Trial Updated:
07/31/2025
Locations: California Research Inst., Los Angeles, California
Conditions: Locally Advanced or Metastatic Solid Tumor Harboring an NTRK Gene Fusion
A Study to Evaluate the Pharmacokinetics, Safety, and Effectiveness of Certolizumab Pegol in Children With Moderate to Severe Chronic Plaque Psoriasis
Recruiting
The purpose of the study is to evaluate the pharmacokinetic (PK) of certolizumab pegol (CZP) in study participants aged 6 to 17 years with moderate to severe chronic plaque psoriasis (PSO) in order to support extrapolation of efficacy.
Gender:
ALL
Ages:
Between 6 years and 17 years
Trial Updated:
07/31/2025
Locations: Ps0007 50213, Anaheim, California
Conditions: Moderate Chronic Plaque Psoriasis, Severe Chronic Plaque Psoriasis, Mixed Guttate/Plaque Psoriasis
Edwards PASCAL Transcatheter Valve Repair System Pivotal Clinical Trial
Recruiting
To establish the safety and effectiveness of the Edwards PASCAL Transcatheter Repair System in patients with symptomatic severe tricuspid regurgitation who have been determined to be at an intermediate or greater estimated risk of mortality with tricuspid valve surgery by the cardiac surgeon with concurrence by the local Heart Team
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/31/2025
Locations: University of California, Irvine, Irvine, California
Conditions: Tricuspid Regurgitation, Tricuspid Valve Insufficiency, Tricuspid Valve Disease
A Study for Subjects With Prostate Cancer Who Previously Participated in an Enzalutamide Clinical Study
Recruiting
The purpose of this study is to collect long term safety data in subjects who are continuing to derive clinical benefit from treatment with Enzalutamide from the subjects participation in an enzalutamide clinical study sponsored by Astellas or Medivation (i.e., parent study) which has completed, at a minimum, the primary analysis or the study specified evaluation period.
Gender:
MALE
Ages:
18 years and above
Trial Updated:
07/31/2025
Locations: Site US10040, Los Angeles, California
Conditions: Prostate Cancer
Study of Pembrolizumab (MK-3475) Combination Therapies in Metastatic Castration-Resistant Prostate Cancer (MK-3475-365/KEYNOTE-365)
Recruiting
The purpose of this study is to assess the safety and efficacy of pembrolizumab (MK-3475) combination therapy in participants with metastatic castration resistant prostate cancer (mCRPC). There will be ten cohorts in this study: Cohort A will receive pembrolizumab + olaparib, Cohort B will receive pembrolizumab + docetaxel + prednisone, Cohort C will receive pembrolizumab + enzalutamide, Cohort D will receive pembrolizumab + abiraterone + prednisone Cohort E will receive pembrolizumab+lenvatinib... Read More
Gender:
MALE
Ages:
18 years and above
Trial Updated:
07/31/2025
Locations: Call for Information (Investigational Site 0005), Los Angeles, California
Conditions: Metastatic Castration-Resistant Prostate Cancer
Global Patient Registry to Monitor Long-term Safety and Effectiveness of Increlex® in Children and Adolescents With Severe Primary Insulin-like Growth Factor-1 Deficiency (SPIGFD).
Recruiting
The Increlex® Global Registry is a descriptive, multicenter, observational, prospective, open-ended, non interventional, post-authorisation surveillance registry. The main purpose of this global registry is to collect, analyse and report safety data during and up to at least 5 years after the end of treatment in children and adolescents receiving Increlex® therapy for SPIGFD according to the locally approved product information.
Gender:
ALL
Ages:
Between 2 years and 18 years
Trial Updated:
07/31/2025
Locations: Children's Hospital of Orange County, Orange, California
Conditions: IGF1 Deficiency
A Study to Learn About COVID-19 RNA-Based Variant-Adapted Vaccine Candidate(s) Against SARS-CoV-2 in Adults, Including Those at Higher Risk of Severe COVID-19
Recruiting
The purpose of this study is to learn about the safety, tolerability, and immunogenicity of an updated vaccine against COVID-19. This study is seeking participants 18 through 64 years of age who are considered to be at higher risk for severe COVID-19 disease per study protocol and those 65 years of age and older. All participants in this study will receive 1 shot to their arm of a BNT162b2 (Omi LP.8.1) 30 µg RNA-based vaccine which targets a circulating variant of SARS-CoV-2 and is selected for... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/30/2025
Locations: Diablo Clinical Research, Inc., Walnut Creek, California
Conditions: COVID-19, SARS-COV-2 Infection
A Study to Evaluate Del-brax (Also Referred to as AOC 1020) in Participants With FSHD
Recruiting
A Randomized, Double-blind, Placebo-controlled, Phase 3 Study to Evaluate the Efficacy and Safety of Intravenous AOC 1020 for the Treatment of Facioscapulohumeral Muscular Dystrophy (FSHD)
Gender:
ALL
Ages:
Between 16 years and 70 years
Trial Updated:
07/30/2025
Locations: University of California Irvine, Orange, California
Conditions: Facioscapulohumeral Muscular Dystrophy, FSHD, FSHD - Facioscapulohumeral Muscular Dystrophy, FSHD1, FSHD2, Fascioscapulohumeral Muscular Dystrophy, Fascioscapulohumeral Muscular Dystrophy Type 1, Fascioscapulohumeral Muscular Dystrophy Type 2, Facioscapulohumeral Muscular Dystrophy 1, Facioscapulohumeral Dystrophy, Facio-Scapulo-Humeral Dystrophy, Facioscapulohumeral Muscular Dystrophy 2, Facioscapulohumeral Muscular Dystrophy Type 1 (FSHD1), FSH Muscular Dystrophy, Landouzy Dejerine Dystrophy, Landouzy-Dejerine Muscular Dystrophy, Landouzy-Dejerine Syndrome
A Study to Evaluate the Clinical Outcomes of Efgartigimod PH20 SC in Adults With New-onset Generalized Myasthenia Gravis (gMG)
Recruiting
The main purpose of this study is to measure how well adults with new-onset gMG (which means they've had generalized disease signs and/or symptoms for less than 1 year) respond to treatment with efgartigimod PH20 SC. The study consists of a treatment period of 51 weeks. The study duration for each participant will be approximately 58 weeks.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/30/2025
Locations: Samir Macwan, M.D., Inc. (S corporation), Rancho Mirage, California
Conditions: New Onset Generalized Myasthenia Gravis (gMG)
A Study to Assess the Safety, Tolerability, and Efficacy of NDI-219216 in Patients With Advanced Solid Tumors.
Recruiting
The goal of this clinical trial is to learn if NDI-219216 is safe for patients, and if NDI-219216 might be a possible treatment for advanced solid tumors in the later phases of the study. The main questions it aims to answer are: Is NDI-219216 safe and what kinds of side effects might it cause? What kind of effects does NDI-219216 have on the body? Does NDI-219216 have any impact on tumor size? Participants will: Take NDI-219216 every day by mouth. Visit the clinic 6 times during Cycle 1, 2... Read More
Gender:
ALL
Ages:
Between 18 years and 99 years
Trial Updated:
07/30/2025
Locations: USC Norris Comprehensive Cancer Center, Los Angeles, California
Conditions: Advanced Solid Tumors Cancer, MSI-H Cancer