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 Study to Learn About the Investigational Medicine Called PF-06821497 (Mevrometostat) in Men With mCRPC Who Were Previously Treated With Abiraterone Acetate for Prostate Cancer (MEVPRO-1).
Recruiting
Pfizer MEVPRO-1 (C2321014) is a randomized, open-label, multi-center clinical trial evaluating whether combining the study medicine (PF-06821497) with enzalutamide is safe and effective compared to physician's choice of either second-line androgen receptor (AR) directed therapy with enzalutamide or docetaxel (chemotherapy) for treating metastatic castration-resistant prostate cancer (mCRPC) after progression on prior abiraterone acetate treatment. The primary objective of this clinical trial is... Read More
Gender:
MALE
Ages:
18 years and above
Trial Updated:
08/05/2025
Locations: Los Angeles Cancer Network, Anaheim, California
Conditions: Metastatic Castrate Resistant Prostate Cancer (mCRPC)
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:
08/05/2025
Locations: CenExel, Garden Grove, California
Conditions: Treatment Resistant Depression
A Study of Elacestrant Versus Standard Endocrine Therapy in Women and Men With ER+,HER2-, Early Breast Cancer With High Risk of Recurrence
Recruiting
The primary goal of this study is to evaluate the effectiveness of elacestrant versus standard endocrine therapy in participants with node-positive, Estrogen Receptor-positive (ER+), Human Epidermal Growth Factor-2 negative (HER2-) early breast cancer with high risk of recurrence.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/05/2025
Locations: UC San Diego Moores Cancer Center, La Jolla, California
Conditions: Breast Cancer
A Study of Lifileucel (Tumor-infiltrating Lymphocytes) in Adults With Advanced Endometrial Cancer.
Recruiting
The purpose of this study is to investigate the efficacy and safety of the lifileucel regimen in participants with previously treated endometrial cancer.
Gender:
FEMALE
Ages:
Between 18 years and 70 years
Trial Updated:
08/05/2025
Locations: University of Southern California, Los Angeles, California
Conditions: Endometrial Cancer
A Study to Assess Disease Activity and Safety of Lutikizumab in Adult and Adolescent Participants With Moderate to Severe Hidradenitis Suppurativa
Recruiting
Hidradenitis suppurativa (HS) is a chronic and often painful inflammatory skin disease which includes the forming of lumps, abscesses and scars in areas of the skin such as under the breasts, under armpits, inner thighs, groin and buttocks. This study will compare lutikizumab versus placebo for the treatment of adult and adolescent participants with the signs and symptoms of moderate to severe HS . Lutikizumab is an investigational drug being developed for the treatment of HS. During Period 1 o... Read More
Gender:
ALL
Ages:
12 years and above
Trial Updated:
08/05/2025
Locations: Private Practice - Dr. Tooraj Raoof /ID# 263756, Encino, California
Conditions: Hidradenitis Suppurativa
Study of GS-1427 in Participants With Moderately to Severely Active Ulcerative Colitis
Recruiting
The goal of this study is to learn if GS-1427 is effective in treating participants with moderate to severe ulcerative colitis. The study will compare participants in different treatment groups treated with GS-1427 with participants treated with placebo. The primary objective of this study is to assess the efficacy of GS-1427, compared with placebo control, in achieving clinical response at Week 12.
Gender:
ALL
Ages:
Between 18 years and 75 years
Trial Updated:
08/05/2025
Locations: Om Research LLC, Camarillo, California
Conditions: Ulcerative Colitis
A Phase III Study to Investigate the Efficacy and Safety of Baxdrostat in Combination With Dapagliflozin on CKD Progression in Participants With CKD and High Blood Pressure.
Recruiting
The purpose of this study is to measure the efficacy and safety of baxdrostat/dapagliflozin in participants ≥ 18 years of age with CKD and HTN. This study consists of a screening, a 4-week dapagliflozin run-in period for participants naïve to SGLT2i at baseline; a 24-month double-blind period in which participants will receive either baxdrostat/dapagliflozin or dapagliflozin; and a 6-week open-label period in which all participants will discontinue baxdrostat/placebo and receive dapagliflozin a... Read More
Gender:
ALL
Ages:
Between 18 years and 130 years
Trial Updated:
08/05/2025
Locations: Research Site, Beverly Hills, California
Conditions: Chronic Kidney Disease and Hypertension
An Open-label Study to Investigate ECUR-506 in Male Babies Less Than 9 Months of Age With Neonatal Onset OTC Deficiency
Recruiting
Ornithine Transcarbamylase (OTC) deficiency, the most common urea cycle disorder, is an inherited metabolic disorder caused by a genetic defect in a liver enzyme responsible for detoxification of ammonia. Individuals with OTC deficiency can build-up excess levels of ammonia in their blood, potentially resulting in devastating consequences, including cumulative and irreversible neurological damage, coma and death. The severe form of the condition emerges shortly after birth and is more common in... Read More
Gender:
MALE
Ages:
Between 24 hours and 7 months
Trial Updated:
08/05/2025
Locations: UCLA Mattel Children's Hospital, Los Angeles, California
Conditions: Ornithine Transcarbamylase Deficiency, Ornithine Transcarbamylase Deficiency Disease, Ornithine Carbamoyltransferase Deficiency (Disorder), Urea Cycle Disorders, Inborn
Danon Disease Natural History Study
Recruiting
The goal of this international observational study is to learn about the natural history of Danon disease in male patients \>8 years of age and female patients \<30 years of age. The key objectives include assessing change over time in cardiac structure (left ventricular mass and wall thickness), cardiac biomarkers, symptoms, and quality of life and the incidence of clinical events such as HF hospitalization, cardiac transplantation, and death.
Gender:
ALL
Ages:
8 years and above
Trial Updated:
08/05/2025
Locations: University of California, San Diego, La Jolla, California
Conditions: Danon Disease
PH Sensitive MRI Based Resections of Glioblastoma
Recruiting
Current standard of care therapy and all FDA approved adjuvant therapy for glioblastoma continue to provide less than 12 months of progression free survival (PFS) and less than 24 months of overall survival (OS). There is an extreme need for any novel therapy against glioblastoma that increases progression free survival and overall survival in patients diagnosed with this invasive form of cancer. A significant reason for such a poor prognosis is the infiltrative nature of this tumor in non-enhan... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/05/2025
Locations: Ronald Reagan Medical Center, Los Angeles, California
Conditions: Glioblastoma
Beamion LUNG-2: A Study to Test Whether Zongertinib (BI 1810631) Helps People With Advanced Non-small Cell Lung Cancer With HER2 Mutations Compared With Standard Treatment
Recruiting
This study is open to adults 18 years and older with advanced or metastatic non-small cell lung cancer. People can join the study if they have tumours with HER2 mutations and have not yet received any systemic therapy including chemotherapy for advanced or metastatic lung cancer. The purpose of this study is to find out whether a medicine called zongertinib (BI 1810631) can slow down the worsening of advanced non-small cell lung cancer better than the standard treatment available. Zongertinib ma... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/05/2025
Locations: Precision NextGen Oncology, Beverly Hills, California
Conditions: Lung Cancer, Non-squamous, Non-small Cell
IIT2023-09-Chung-UpfrontTAD: Upfront TAD/SNB in Patients With Breast Cancer With Nodal Metastases
Recruiting
The purpose of the study is to determine the recurrence rates and survival of patients with clinical T1-2N0 ER+/Her2- invasive breast cancer who have biopsy proven image detected nodal disease treated with upfront lumpectomy or mastectomy with TAD followed by adjuvant therapy. This is a prospective, single arm phase II clinical trial. Patients will be screened and enrolled per eligibility criteria. Patient, tumor, and treatment data will be documented.
Gender:
FEMALE
Ages:
45 years and above
Trial Updated:
08/05/2025
Locations: Cedars-Sinai Medical Center, Samuel Oschin Comprehensive Cancer Institute, Los Angeles, California
Conditions: Breast Cancer, Axillary Nodal Disease, Female Breast Cancer, Axilla; Breast, Mastectomy; Lymphedema, Tumor, Breast