California is currently home to 5594 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 Longitudinal Impact of Respiratory Viruses on Bronchiolitis Obliterans Syndrome After Allogeneic Hematopoietic Cell Transplantation (The RV-BOS Study)
Recruiting
This observational trial studies whether respiratory viruses are the cause of lung disease (bronchiolitis obliterans syndrome \[BOS\] or graft-versus-host disease of the lung) and changes in lung function in patients who have received a donor stem cell transplant. Patients with chronic graft-versus-host disease (cGVHD) are at higher risk of developing BOS. Studies have also shown that patients who had a respiratory viral illness early after their transplant are at higher risk of developing lung... Read More
Gender:
ALL
Ages:
8 years and above
Trial Updated:
06/26/2025
Locations: Stanford Cancer Institute, Palo Alto, California
Conditions: Bronchiolitis Obliterans Syndrome, Hematopoietic and Lymphoid Cell Neoplasm
Modified Immune Cells (TAG72-CAR T Cells) for the Treatment of Patients With Platinum Resistant Epithelial Ovarian Cancer
Recruiting
This phase I trial tests the safety, side effects, and best dose of TAG72-chimeric antigen receptor (CAR) T cells in treating patients with epithelial ovarian cancer that remains despite treatment with platinum therapy (platinum resistant). T cells are infection fighting blood cells that can kill tumor cells. The T cells given in this study will come from the patient and will have a new gene put in them that makes them able to recognize TAG72, a protein on the surface of tumor cells. These TAG72... Read More
Gender:
FEMALE
Ages:
18 years and above
Trial Updated:
06/26/2025
Locations: City of Hope Medical Center, Duarte, California
Conditions: Platinum-Resistant Ovarian Carcinoma
A Study of the Efficacy and Safety of DMX-200 in Patients With FSGS Who Are Receiving an ARB
Recruiting
DMX-200 (repagermanium) is a C-C chemokine receptor type 2 (CCR2) inhibitor that, when administered concurrently with an ARB, is designed to inhibit recruitment of monocytes implicated in the inflammatory chemokine environment of chronic disease. The purpose of this pivotal randomized double-blind study is to investigate the efficacy and safety of DMX-200 120 mg twice daily (BID) compared with placebo over a treatment period of 104 weeks in adult patients with FSGS who are being treated with an... Read More
Gender:
ALL
Ages:
Between 12 years and 80 years
Trial Updated:
06/26/2025
Locations: ACTION3 Investigational Site 48, Loma Linda, California
Conditions: FSGS
Randomized Trial Comparing Immediate vs. Deferred Surgery for Symptomatic ERM
Recruiting
Vitrectomy to remove an epiretinal membrane (ERM) is one of the most common procedures performed by retinal surgeons. Patients who present with significant macular changes on optical coherence tomography (OCT) but relatively good vision are often advised to defer surgery until vision declines to 20/40 or worse. However, it is unknown if delaying surgery, which allows the foveal architecture to remain compromised and potentially to deteriorate, results in worse visual acuity outcomes than if surg... Read More
Gender:
ALL
Ages:
50 years and above
Trial Updated:
06/26/2025
Locations: Kent W. Small, MD, AMC, Glendale, California
Conditions: Epiretinal Membrane
A Study of Zilovertamab Vedotin (MK-2140) in Combination With Standard of Care in Participants With Relapsed or Refractory Diffuse Large B-Cell Lymphoma (rrDLBCL) (MK-2140-003)
Recruiting
The purpose of this Phase 2/3, randomized, multisite, open-label, dose confirmation, and expansion study is to evaluate the safety, and efficacy of zilovertamab vedotin (ZV) in combination with standard of care options for the treatment of rrDLBCL. This study will be divided into 2 parts: Dose Confirmation (Part 1) and Efficacy Expansion (Part 2) and will enroll participants who are at least 18 years of age with rrDLBCL. The hypotheses are: ZV in combination with rituximab, gemcitabine, and oxal... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/26/2025
Locations: Bass Medical Group ( Site 0166), Walnut Creek, California
Conditions: DLBCL, Diffuse Large B-Cell Lymphoma
A Study to Investigate Safety and Tolerability of TransCon IL-2 β/γ Alone or in Combination With Pembrolizumab and/or TransCon TLR7/8 Agonist or Other Anticancer Therapies in Adult Participants With Locally Advanced or Metastatic Solid Tumor Malignancies
Recruiting
TransCon IL-2 β/γ is an investigational drug being developed for treatment of locally advanced or metastatic solid tumors. This is a first-in-human, open-label, Phase 1/2, dose escalation and dose expansion study of TransCon IL-2 β/γ as monotherapy or in combination therapy in adult participants with advanced or metastatic solid tumors. Given the unique PK profile enabled by the TransCon technology, TransCon IL-2 β/γ presents the opportunity to enhance the therapeutic index of current IL-2 thera... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/26/2025
Locations: Ascendis Pharma Investigational Site, Los Angeles, California
Conditions: Advanced Solid Tumor, Locally Advanced Solid Tumor, Metastatic Solid Tumor, Platinum-resistant Ovarian Cancer, Post Anti-PD-1 Melanoma, 2L+ Cervical Cancer, Neoadjuvant Melanoma, Neoadjuvant Non-Small Cell Lung Cancer, Post Anti-PD-(L)1 Non-Small Cell Lung Cancer, Post Anti-PD-(L)1 Small Cell Lung Cancer, Third Line or Later (3L+) HER2+ Breast Cancer, Second or Third Line (2L/3L) Cervical Cancer, Third-line or Later (3L+) Platinum-resistant Ovarian Cancer (PROC)
Evaluating the Addition of the Immunotherapy Drug Atezolizumab to Standard Chemotherapy Treatment for Advanced or Metastatic Neuroendocrine Carcinomas That Originate Outside the Lung
Recruiting
This phase II/III trial compares the effect of immunotherapy with atezolizumab in combination with standard chemotherapy with a platinum drug (cisplatin or carboplatin) and etoposide versus standard therapy alone for the treatment of poorly differentiated extrapulmonary (originated outside the lung) neuroendocrine cancer that may have spread from where it first started to nearby tissue, lymph nodes, or distant parts of the body (advanced) or that has spread from where it first started (primary s... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/26/2025
Locations: Kaiser Permanente-Anaheim, Anaheim, California
Conditions: Advanced Extrapulmonary Neuroendocrine Carcinoma, Metastatic Extrapulmonary Neuroendocrine Carcinoma, Recurrent Extrapulmonary Neuroendocrine Carcinoma, Unresectable Extrapulmonary Neuroendocrine Carcinoma
A Phase III Study to Investigate if the Study Drug Diamyd Can Preserve Insulin Production and Improve Glycemic Control in Patients Newly Diagnosed With Type 1 Diabetes
Recruiting
The objective of DIAGNODE-3 is to evaluate the efficacy and safety of three intranodal injections of 4 μg of Diamyd compared to placebo, along with oral Vitamin D supplementation, to preserve endogenous beta cell function and influence glycemic parameters in adolescent and adults recently diagnosed with T1D carrying the HLA DR3-DQ2 haplotype.
Gender:
ALL
Ages:
Between 12 years and 28 years
Trial Updated:
06/26/2025
Locations: Mary and Dick Allen Diabetes Center at Hoag Hospital, Newport Beach, California
Conditions: Type 1 Diabetes Mellitus
Capivasertib + CDK4/6i + Fulvestrant for Advanced/Metastatic HR+/HER2- Breast Cancer (CAPItello-292)
Recruiting
A Phase Ib/III Open-label, Randomised Study of Capivasertib plus CDK4/6 Inhibitors and Fulvestrant versus CDK4/6 Inhibitors and Fulvestrant in Hormone Receptor-Positive and Human Epidermal Growth Factor Receptor 2-Negative Locally Advanced, Unresectable or Metastatic Breast Cancer (CAPItello-292)
Gender:
ALL
Ages:
Between 18 years and 99 years
Trial Updated:
06/26/2025
Locations: Research Site, Fountain Valley, California
Conditions: Locally Advanced (Inoperable) or Metastatic Breast Cancer
APOLLO: A Randomized Phase II Double-Blind Study of Olaparib Versus Placebo Following Curative Intent Therapy in Patients With Resected Pancreatic Cancer and a Pathogenic BRCA1, BRCA2 or PALB2 Mutation
Recruiting
This phase II trial investigates how well the addition of olaparib following completion of surgery and chemotherapy works in treating patients with pancreatic cancer that has been surgically removed (resected) and has a pathogenic mutation in BRCA1, BRCA2, or PALB2. Olaparib is an inhibitor of PARP, an enzyme that helps repair deoxyribonucleic acid (DNA) when it becomes damaged. Blocking PARP may help keep tumor cells from repairing their damaged DNA, causing them to die. PARP inhibitors are a t... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/26/2025
Locations: Mission Hope Medical Oncology - Arroyo Grande, Arroyo Grande, California
Conditions: Pancreatic Acinar Cell Carcinoma, Pancreatic Adenosquamous Carcinoma, Pancreatic Squamous Cell Carcinoma, Resectable Pancreatic Acinar Cell Carcinoma, Resectable Pancreatic Adenocarcinoma, Resectable Pancreatic Adenosquamous Carcinoma, Resectable Pancreatic Carcinoma
Fenofibrate for Prevention of DR Worsening
Recruiting
This randomized trial will evaluate the effect of fenofibrate compared with placebo for prevention of diabetic retinopathy (DR) worsening through 6 years of follow-up in eyes with mild to moderately severe non-proliferative DR (NPDR) and no CI-DME at baseline. In addition to evaluating efficacy, this study aims to evaluate the feasibility of a model for ophthalmologists to prescribe or collaborate with a primary care provider such as an internist/endocrinologist to prescribe and monitor the dru... Read More
Gender:
ALL
Ages:
Between 18 years and 80 years
Trial Updated:
06/26/2025
Locations: Kent W. Small, MD, AMC, Glendale, California
Conditions: Diabetic Retinopathy
Evaluation of Oral Tofacitinib in Children Aged 2 to 17 Years Old Suffering From Moderate to Severe Ulcerative Colitis
Recruiting
This study, A3921210 is designed to evaluate the efficacy, safety and pharmacokinetics (PK) of tofacitinib in pediatric participants with moderately to severely active UC. In the US and EU, patients with prior TNFi failure or intolerance will be enrolled. Outside of the US or EU, patients having had inadequate response or intolerance to oral or IV corticosteroids or azathioprine or 6-mercaptopurine or TNFi will be enrolled. All eligible participants will initially receive open label tofacitinib... Read More
Gender:
ALL
Ages:
Between 2 years and 17 years
Trial Updated:
06/26/2025
Locations: Children's Hospital Los Angeles, Los Angeles, California
Conditions: Ulcerative Colitis