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 Precision Medicine Approach Using Gene Silencing to Treat a Chronic Liver Disease Called Metabolic Dysfunction-Associated Steatohepatitis (MASH) in Adult Participants at Increased Genetic Risk for This Condition
NCT05519475
Recruiting
This study is researching an investigational drug, ALN-HSD called "study drug". This study is focused on participants who are known to have metabolic dysfunction-associated steatohepatitis (MASH). MASH is a form of metabolic dysfunction-associated steatotic liver disease (MASLD). MASH occurs when fat builds up in liver cells, damaging them, and making the liver inflamed and stiff from fibrosis (scar tissue). MASH can progress to cirrhosis (long term scarring) and liver failure (when the liver ca... Read More
Gender:
ALL
Ages:
Between 18 years and 75 years
Trial Updated:
07/29/2025
Locations: San Fernando Valley Health Institute, Canoga Park, California
Conditions: Metabolic Dysfunction-associated Steatohepatitis (MASH)
Register for Updates
Long-Term Safety and Efficacy Evaluation of Amlitelimab in Participants of Previous Amlitelimab Moderate to Severe Atopic Dermatitis Clinical Trials
NCT05492578
Recruiting
This is an open-label, Phase 2/Phase 3, long-term extension study for treatment of participants of previous amlitelimab clinical trials in moderate to severe atopic dermatitis. The purpose of this study is to characterize the safety and efficacy of amlitelimab in treated participants with moderate to severe atopic dermatitis (AD) who have previously been enrolled in an amlitelimab clinical trial. All participants will have visits during the treatment period every 4 weeks. Responder participants... Read More
Gender:
ALL
Ages:
12 years and above
Trial Updated:
07/29/2025
Locations: Orange County Clinical Trials- Site Number : 8401271, Anaheim, California
Conditions: Dermatitis Atopic
Register for Updates
Aveir VR Coverage With Evidence Development Post-Approval Study
NCT05336877
Recruiting
The purpose of this coverage with evidence development (CED) study is to evaluate complications and long-term health outcomes of the single-chamber Aveir Single-Chamber Leadless Pacemaker device (Aveir VR LP).
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/29/2025
Locations: Abbott, Sylmar, California
Conditions: Cardiac Pacemaker, Arrythmia, Bradycardia
Register for Updates
Study to Evaluate Weight Gain as Assessed by Change in BMI Z-score in Pediatric Subjects With Schizophrenia or Bipolar I Disorder
NCT05303064
Recruiting
To compare changes in body mass index (BMI) Z-score following treatment with OLZ/SAM vs olanzapine
Gender:
ALL
Ages:
Between 10 years and 17 years
Trial Updated:
07/29/2025
Locations: Alkermes Investigator Site, Encino, California
Conditions: Schizophrenia, Bipolar I Disorder
Register for Updates
Serial Ultrasound of Solid Tumor Lesions to Detect Early Response to Cancer Immunotherapy
NCT05206942
Recruiting
Primary objective is to assess whether changes in quantitative tumor perfusion parameters after 3 weeks of treatment, as measured by CEUS, can predict initial objective response to therapy, defined by current standard-of-care Secondary objectives are to evaluate if there is an optimal ultrasound imaging modality (CEUS or conventional power Doppler or LEAD ultrasound) or optimal time point to predict initial objective response and to assess the correlation of tumor perfusion parameters with chan... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/29/2025
Locations: Stanford, Palo Alto, California
Conditions: Solid Tumor
Register for Updates
Evolut™ EXPAND TAVR II Pivotal Trial
NCT05149755
Recruiting
Obtain safety and effectiveness data to support indication expansion for the Medtronic TAVR System to include patients with moderate, AS.
Gender:
ALL
Ages:
65 years and above
Trial Updated:
07/29/2025
Locations: Los Robles Hospital & Medical Center, Thousand Oaks, California
Conditions: Moderate Aortic Valve Stenosis
Register for Updates
Family Functioning in Obesity Treatment for Mexican Americans
NCT05120804
Recruiting
Mexican American families share similar elevated risks for obesity and obesity-related conditions, such as type 2 diabetes. Because negative family interactions and relationships (e.g., poor communication, high conflict, low emotional closeness) are associated with obesity treatment outcomes, this study tests a behavioral weight management intervention that provides relationship skills counseling to mothers and adult daughters. The goal is to improve family interaction patterns to buffer challen... Read More
Gender:
FEMALE
Ages:
Between 18 years and 65 years
Trial Updated:
07/29/2025
Locations: University of California San Diego, La Jolla, California
Conditions: Obesity
Register for Updates
A Study of CLN-619 Alone and in Combination With Pembrolizumab in Advanced Solid Tumors
NCT05117476
Recruiting
CLN-619-001 is a Phase 1, open-label, multi-center study of CLN-619 alone and in combination with pembrolizumab in patients with advanced solid tumors.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/29/2025
Locations: City of Hope, Duarte, California
Conditions: Advanced Solid Tumor, NSCLC
Register for Updates
First in Human Study of TORL-1-23 in Participants With Advanced Cancer
NCT05103683
Recruiting
This first-in-human study will evaluate the safety, tolerability, pharmacokinetics, and antitumor activity of TORL-1-23 in patients with advanced cancer
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/29/2025
Locations: Providence Medical Foundation, Fullerton, California
Conditions: Advanced Solid Tumor, Ovarian Cancer, Endometrial Cancer, NSCLC
Register for Updates
Long-term Safety and Efficacy of Odevixibat in Patients With Alagille Syndrome
NCT05035030
Recruiting
The purpose of this study is to assess the long-term safety and effectiveness of odevixibat in participants with Alagille syndrome (ALGS). The participants of this study will have ALGS a rare genetic disorder that can affect multiple organ systems of the body including the liver, heart, skeleton, eyes and kidneys. Common symptoms, which often develop during the first three months of life, include blockage of the flow of bile from the liver (cholestasis), yellowing of the skin and mucous membran... Read More
Gender:
ALL
Ages:
All
Trial Updated:
07/29/2025
Locations: Rady Children's Hospital, San Diego, California
Conditions: Alagille Syndrome
Register for Updates
Veterans Affairs Seamless Phase II/III Randomized Trial of STAndard Systemic theRapy With or Without PET-directed Local Therapy for Oligometastatic pRosTate Cancer
NCT04787744
Recruiting
This is a prospective, open-label, multi-center seamless phase II to phase III randomized clinical trial designed to compare SST with or without PET-directed local therapy in improving the castration-resistant prostate cancer-free survival (CRPC-free survival) for Veterans with oligometastatic prostate cancer. Oligometastasis will be defined as 1-10 sites of metastatic disease based on the clinical determination of the LSI which incorporates all imaging, clinical, and pathologic data available.
Gender:
MALE
Ages:
18 years and above
Trial Updated:
07/29/2025
Locations: VA Long Beach Healthcare System, Long Beach, CA, Long Beach, California
Conditions: Prostate Cancer, Oligometastasis, Oligorecurrence, Recurrent Prostate Cancer, Metastatic Prostate Cancer, De Novo Prostate Cancer
Register for Updates
A Safety, Tolerability, and Efficacy Study of VX-880 in Participants With Type 1 Diabetes
NCT04786262
Recruiting
This study will evaluate the safety, tolerability and efficacy of VX-880 infusion in participants with Type 1 diabetes (T1D) and impaired awareness of hypoglycemia (IAH) and severe hypoglycemia.
Gender:
ALL
Ages:
Between 18 years and 65 years
Trial Updated:
07/29/2025
Locations: City of Hope, Duarte, California
Conditions: Diabetes Mellitus, Type 1, Impaired Hypoglycemic Awareness, Severe Hypoglycemia
Register for Updates