California is currently home to 5616 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.
Regeneron AA Multicenter (Dupilumab)
Recruiting
This is a prospective, randomized, double blind, placebo-controlled clinical trial. The study will take place at 4 sites. This trial will enroll a total of 68 patients with moderate to severe AA (affecting more than 50% of the scalp) at the time of screening with a targeted 54 subjects completers through Week 48. AA subjects must have evidence of hair regrowth within the last 7 years of their last episode of hair loss; and have screening IgE ≥ 200 and/or have personal and/or familial history of... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/24/2025
Locations: University of California, Irvine, Irvine, California
Conditions: Alopecia Areata
Writing About Experiences and Health in Older Adults II
Recruiting
UCLA researchers looking for healthy older adults (aged 65+) to participate in a study investigating how writing about experiences can affect your brain and body. Once a week for 6 weeks, participants will write about their experiences and fill out online questionnaires. Participants will also come to the UCLA campus to complete a neuroimaging session (fMRI), provide a blood spot sample, and fill out questionnaires 2 times: once prior to the 6-week writing period and once immediately after the... Read More
Gender:
ALL
Ages:
65 years and above
Trial Updated:
07/24/2025
Locations: Center for Cognitive Neuroscience, Los Angeles, California
Conditions: Social Psychology
Study of Neoadjuvant PARP Inhibition Followed by Radical Prostatectomy in Patients With Unfavorable Intermediate-Risk or High-Risk Prostate Cancer With Select HRR Gene Alterations
Recruiting
Phase 2 open-label, single-arm clinical trial evaluating the efficacy and safety of neoadjuvant olaparib + LHRH agonist administered for 6 months prior to radical prostatectomy (RP) in men with unfavorable intermediate-risk or high-risk localized prostate cancer. All patients must have confirmed germline or somatic select HRR alterations. Germline and somatic mutation testing will be performed as part of commercially available CLIA assays and will be validated on a uniform platform centrally all... Read More
Gender:
MALE
Ages:
18 years and above
Trial Updated:
07/24/2025
Locations: University of California San Diego - Moores Cancer Center, La Jolla, California
Conditions: Prostate Cancer, BRCA1 Mutation, BRCA2 Mutation, Prostatic Adenocarcinoma, High-Risk Cancer
Anti-CEACAM5 ADC M9140 in Advanced Solid Tumors (PROCEADE-CRC-01)
Recruiting
The purpose of this first-in-human study is to evaluate the safety, tolerability, pharmacokinetics, and preliminary clinical activity of M9140 in advanced solid tumors. This study contains 2 parts: Dose escalation (Part 1) and dose expansion (Part 2). Study details include: * Study Duration per participant: Approximately 4 months for Part 1 and 8 months for Part 2 * M9140 is not available through an expanded access program
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/24/2025
Locations: California Cancer Associates for Research & Excellence, Inc., Encinitas, California
Conditions: Colorectal Cancer
A Study of LP-300 With Carboplatin and Pemetrexed in Never Smokers With Advanced Lung Adenocarcinoma
Recruiting
The goal of this clinical trial is to determine clinical advantages for LP-300 in combination with carboplatin and pemetrexed in the never smoker patient population. The primary objectives of this study are to determine progression-free survival (PFS) and overall survival (OS) in the study-defined patient population when LP-300 is co-administered with the standard of care chemotherapy drugs carboplatin and pemetrexed compared to carboplatin and pemetrexed alone. This has been designed as a multi... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/24/2025
Locations: Precision NextGen Oncology and Research Center, Beverly Hills, California
Conditions: Adenocarcinoma of Lung, Carcinoma, Non-Small-Cell Lung
A Study of NTX-1088, a Monoclonal Antibody Targeting the Poliovirus Receptor (PVR, CD155), as Monotherapy and Combined With Pembrolizumab
Recruiting
This is a Phase 1,open-label, multi-center, first-in-human, 2-part (Part 1: dose escalation and Part 2: expansion) study, evaluating multiple doses and schedules of intravenously (IV) administered NTX-1088, with or without pembrolizumab, in patients with advanced solid malignancies (i.e., locally advanced or metastatic).
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/24/2025
Locations: City of Hope, Duarte, California
Conditions: Cancer, Tumor, Solid, Advanced Solid Tumor, Metastatic Cancer, Locally Advanced Solid Tumor
(HALT) Embrace Hydrogel Embolic System (HES) Study of Embolization in Peripheral Arterial Bleeds
Recruiting
To evaluate the safety and effectiveness of Embrace Hydrogel Embolic System for the transcatheter embolization of peripheral arterial bleeds.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/24/2025
Locations: Memorial Health Services, Long Beach, California
Conditions: Arterial Bleeding in Solid Organs and Peripheral Arteries
Phase 2/3 Adaptive Study of VX-147 in Adult and Pediatric Participants With APOL1- Mediated Proteinuric Kidney Disease
Recruiting
The purpose of this study is to evaluate the efficacy, safety, tolerability, and pharmacokinetics (PK) of VX-147 in adult and pediatric participants with apolipoprotein L1 (APOL1)-mediated proteinuric kidney disease.
Gender:
ALL
Ages:
Between 10 years and 65 years
Trial Updated:
07/24/2025
Locations: The Medical Research Group - Saint Agnes Medical Center, Fresno, California
Conditions: Proteinuric Kidney Disease
Treatment of Acute Ischemic Stroke (ReMEDy2 Trial)
Recruiting
This is a Phase 2/3 study evaluating the safety and efficacy of DM199 (rinvecalinase alfa) in treating participants with moderate stroke severity, who present within 24 hours of Acute Ischemic Stroke (AIS) onset due to small and medium vessel occlusions. This study focuses on participants with limited treatment options. Participants who have or will receive mechanical thrombectomy (MT) are not eligible for participation. Additionally, participants who have received fibrinolytics are excluded unl... Read More
Gender:
ALL
Ages:
Between 18 years and 90 years
Trial Updated:
07/24/2025
Locations: Glendale Adventist Medical Center d/b/a Adventist Health Glendale, Glendale, California
Conditions: Acute Stroke, Ischemic Stroke, Stroke
Study of Sequential Systemic Therapy + Intraperitoneal Paclitaxel in Gastric/GEJ Peritoneal Carcinomatosis
Recruiting
This is a phase II clinical trial assessing the safety and efficacy of sequential systemic and intraperitoneal (IP) chemotherapy in patients with primary gastric/gastroesophageal junction cancer with cytology positive peritoneal lavage and/or peritoneal carcinomatosis.
Gender:
ALL
Ages:
Between 18 years and 75 years
Trial Updated:
07/24/2025
Locations: Chao Family Comprehensive Cancer Center, University of California, Irvine, Orange, California
Conditions: Gastric Cancer, Peritoneal Carcinomatosis, Gastroesophageal Junction Adenocarcinoma
KIDney Injury in Times of COVID-19 (KIDCOV)
Recruiting
There is an unmet need to evaluate the impact of sub-clinical/mild COVID19 disease in the outpatient setting on prevalent and incident renal injury, as this data is currently unavailable. To capture the diversity of race/ethnic risk and COVID19 related municipal shelter-in-place guidance, the investigators will enroll COVID19-negative and COVID19-positive samples balanced by race/ethnicity from 3 different states, California, Michigan, and Illinois. Study endpoints will be assayed from urine sam... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/24/2025
Locations: UCSF, San Francisco, California
Conditions: SARS-CoV Infection, Covid19, Corona Virus Infection, Acute Kidney Injury, Kidney Injury
A Phase II Clinical Trial Comparing the Efficacy of RO7198457 Versus Watchful Waiting in Patients With ctDNA-positive, Resected Stage II (High Risk) and Stage III Colorectal Cancer
Recruiting
This is a multi-site, open-label, Phase II, randomized, trial to compare the efficacy of RO7198457 versus watchful waiting in patients with circulating tumor DNA (ctDNA) positive, surgically resected Stage II/III rectal cancer, or Stage II (high risk)/Stage III colon cancer.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/24/2025
Locations: John Muir Clinical Research Center, Concord, California
Conditions: Colorectal Cancer Stage II, Colorectal Cancer Stage III