California is currently home to 5617 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 Phase 2 Study of NEU-411 in Companion Diagnostic-Positive Participants With Early Parkinson's Disease
Recruiting
The goal of this Phase 2 clinical trial is to investigate the efficacy and safety of NEU-411 in men and women aged 40-80 years with early Parkinson's Disease (PD) who have predicted elevations in the activity of the "leucine-rich repeat kinase 2" ("LRRK2" for short) pathway based on their genetic profile. A DNA test will be used to identify the "LRRK2-driven" population with predicted elevation in the LRRK2 pathway. Participants will: • Take NEU-411 or placebo every day for 52 weeks
Gender:
ALL
Ages:
Between 40 years and 80 years
Trial Updated:
07/29/2025
Locations: Neuro-Pain Medical Center, Fresno, California
Conditions: Parkinson Disease, Parkinson, Idiopathic Parkinson Disease, Early Parkinson Disease (Early PD), Parkinson Disease, Idiopathic
A Study to Compare the Efficacy and Safety of BMS-986393 Versus Standard Regimens in Adult Participants With Relapsed or Refractory and Lenalidomide-exposed Multiple Myeloma (QUINTESSENTIAL-2)
Recruiting
The purpose of this study is to compare the efficacy and safety of arlo-cel (BMS-986393) versus standard regimens in adult participants with Relapsed or Refractory and Lenalidomide-exposed Multiple Myeloma.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/29/2025
Locations: UCLA Hematology/Oncology - Santa Monica, Los Angeles, California
Conditions: Relapsed or Refractory Multiple Myeloma (RRMM)
Study of Quemliclustat and Chemotherapy Versus Placebo and Chemotherapy in Patients With Metastatic Pancreatic Ductal Adenocarcinoma
Recruiting
The purpose of this study is to compare overall survival of quemliclustat, nab-paclitaxel and gemcitabine versus placebo, nab-paclitaxel and gemcitabine in all randomized patients.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/29/2025
Locations: University of California San Diego Health, La Jolla, California
Conditions: Metastatic Pancreatic Ductal Adenocarcinoma
A Study to Compare the Efficacy of Nivolumab and Relatlimab Plus Chemotherapy vs Pembrolizumab Plus Chemotherapy for Stage IV/Recurrent Non-squamous Non-small Cell Lung Cancer With PD-L1 Expression ≥ 1%
Recruiting
The purpose of this study is to compare the efficacy of Nivolumab and Relatlimab in combination with chemotherapy to Pembrolizumab with Chemotherapy in participants with stage IV or recurrent Non-squamous Non-small Cell Lung Cancer with PD-L1 expression ≥ 1%
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/29/2025
Locations: Local Institution - 0112, Los Angeles, California
Conditions: Non-small Cell Lung Cancer
To Evaluate the Efficacy of CVN424 in Parkinson's Disease Participants With Motor Complications
Recruiting
This is a randomized, double-blind, placebo-controlled, multicenter study in participants with Parkinson's disease (PD) with motor fluctuations. Participants will be randomized to receive once-daily oral doses of either 75 milligrams (mg) CVN424 or 150 mg CVN424, or a matching placebo for 12 weeks. Participants who successfully complete this study and retain eligibility/suitability will be invited to participate in a future open-label extension (OLE) study.
Gender:
ALL
Ages:
30 years and above
Trial Updated:
07/29/2025
Locations: Parkinson's Research Centers of America - Palo Alto, Palo Alto, California
Conditions: Parkinson Disease
Registry for Stage 2 Type 1 Diabetes
Recruiting
Stage 2 Type 1 Diabates (T1D) is an early stage of T1D characterized by dysglycemia but not yet leading to clinical symptoms. Progression of the disease to Stage 3 (clinical T1D), leads to overt hyperglycemia requiring eventually exogenous insulin. TZIELD® (teplizumab-mzwv) has been approved to delay onset of stage 3 T1D, by the United States (US) Food and Drug Administration (FDA) for adults and children aged 8 years and older with Stage 2 T1D. The purpose of this study is to collect general... Read More
Gender:
ALL
Ages:
All
Trial Updated:
07/29/2025
Locations: University of California San Francisco - Mission Bay- Site Number : 8400005, San Francisco, California
Conditions: Type 1 Diabetes
A Study to Evaluate the Safety, Tolerability, and Efficacy of Escalating Doses of BMS-986463 in Participants With Select Advanced Malignant Tumors.
Recruiting
The purpose of this study is to evaluate the safety, tolerability, and efficacy of escalating doses of BMS-986463 in participants with select advanced malignant tumors.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/29/2025
Locations: USC/Norris Comprehensive Cancer Center, Los Angeles, California
Conditions: High-grade Serous Ovarian Carcinoma (HGSOC), Uterine Serous Carcinoma (USC), Non-small Cell Lung Cancer (NSCLC)
A Study to Assess Adverse Events and Change in Disease Activity Comparing Oral Upadacitinib to Subcutaneous Dupilumab in Children From 2 to Less Than 12 Years of Age With Moderate to Severe Atopic Dermatitis
Recruiting
Atopic dermatitis (AD) is a skin condition that may cause a rash and itching due to inflammation of the skin. Topical therapies applied over the skin may not be enough to control the AD in trial participants who require systemic anti-inflammatory treatment. This study compares upadacitinib to dupilumab in pediatric participants with moderate to severe AD who are candidates for systemic therapy. Adverse events and change in the disease activity will be assessed. Upadacitinib is an approved drug... Read More
Gender:
ALL
Ages:
Between 2 years and 11 years
Trial Updated:
07/29/2025
Locations: Integrative Skin Science and Research /ID# 265108, Sacramento, California
Conditions: Atopic Dermatitis
A Phase 3 Study of Barzolvolimab in Participants With Chronic Spontaneous Urticaria (CSU)
Recruiting
The purpose of this study is to establish the efficacy, safety and tolerability of barzolvolimab in adult participants with Chronic Spontaneous Urticaria (CSU) inadequately controlled by non-sedating second generation H1-antihistamines in comparison to placebo.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/29/2025
Locations: Kern Research, Inc., Bakersfield, California
Conditions: Chronic Spontaneous Urticaria
A Study to Learn About the Study Medicine PF-07934040 When Given Alone or With Other Anti-cancer Therapies in People With Advanced Solid Tumors That Have a Genetic Mutation.
Recruiting
The purpose of this study is to learn about the safety and effects of the study medicine alone or when given together with other anti-cancer therapies. This study also aims to find the best dose. This study is seeking participants who have solid tumors (a mass of abnormal cells that forms a lump or growth in the body) that: * are advanced (cancer that doesn't disappear or stay away with treatment) and * have a KRAS gene mutation (a change in the DNA of the KRAS gene that can cause cells to gro... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/29/2025
Locations: City of Hope (City of Hope National Medical Center, City of Hope Medical Center), Duarte, California
Conditions: Carcinoma, Pancreatic Ductal, Colorectal Neoplasms, Carcinoma, Non-Small-Cell Lung
A Study to Evaluate the Risk of Tumor Lysis Syndrome (TLS) in Adult Participants Receiving Oral Venetoclax in Combination With Intravenously Infused Obinutuzumab or Oral Acalabrutinib for Previously Untreated Chronic Lymphocytic Leukemia (CLL)
Recruiting
Chronic lymphocytic leukemia (CLL) is the most common leukemia (cancer of blood cells). The purpose of this study is to assess the safety of venetoclax in combination with obinutuzumab or acalabrutinib in the treatment of CLL. Adverse events and change in disease activity will be assessed. Venetoclax in combination with obinutuzumab or acalabrutinib is being investigated in the treatment of CLL. Study doctors put the participants in 1 of 4 groups, called treatment arms. Participants will receiv... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/29/2025
Locations: UCSF FRESNO/Community Cancer Institute /ID# 270874, Clovis, California
Conditions: Chronic Lymphocytic Leukemia
Measuring if Immunotherapy Plus Chemotherapy is Better Than Chemotherapy Alone for Patients With Aggressive Poorly Differentiated Sarcomas
Recruiting
This phase III trial compares the effect of immunotherapy (pembrolizumab) plus chemotherapy (doxorubicin) to chemotherapy (doxorubicin) alone in treating patients with undifferentiated pleomorphic sarcoma (UPS) or a related poorly differentiated sarcoma that has spread from where it first started (primary site) to other places in the body (metastatic) or that cannot be removed by surgery (unresectable). Doxorubicin is in a class of medications called anthracyclines. Doxorubicin damages the cell'... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/29/2025
Locations: Kaiser Permanente Dublin, Dublin, California
Conditions: Stage III Soft Tissue Sarcoma of the Trunk and Extremities AJCC v8, Stage IV Soft Tissue Sarcoma of the Trunk and Extremities AJCC v8, Metastatic Undifferentiated Pleomorphic Sarcoma, Unresectable Undifferentiated Pleomorphic Sarcoma