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.
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:
08/12/2025
Locations: Children's Hospital Los Angeles, Los Angeles, California
Conditions: Ulcerative Colitis
Study of PF-07248144 in Advanced or Metastatic Solid Tumors
Recruiting
This is an open-label, multi center study to evaluate safety, tolerability, pharmacokinetics (PK), and pharmacodynamics (PD) of PF-07248144 and early signs of clinical efficacy of PF-07248144 as a single agent and in combination with other agents
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/12/2025
Locations: Cedars Sinai Medical Center, Samuel Oschin Comprehensive Cancer Institute, Los Angeles, California
Conditions: Locally Advanced or Metastatic ER+ HER2- Breast Cancer, Locally Advanced or Metastatic Castration-resistant Prostate Cancer, Locally Advanced or Metastatic Non-small Cell Lung Cancer
A Study of EPX-100 (Clemizole Hydrochloride) in Participants With Dravet Syndrome
Recruiting
This is a multicenter, Phase 3, randomized, double-blind, placebo-controlled study designed to evaluate the efficacy and safety of clemizole hydrochloride (EPX-100) as adjunctive therapy in children and adult participants with Dravet syndrome (DS).
Gender:
ALL
Ages:
2 years and above
Trial Updated:
08/12/2025
Locations: Children's Hospital of Los Angeles, Los Angeles, California
Conditions: Dravet Syndrome
A Study of Oral Nuvisertib (TP-3654) in Patients With Myelofibrosis
Recruiting
This study is a Phase 1/2, multicenter, dose-escalation, open-label trial to assess safety, tolerability, pharmacokinetics and pharmacodynamics of nuvisertib (TP-3654) in patients with intermediate or high-risk primary or secondary MF.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/12/2025
Locations: City of Hope, Duarte, California
Conditions: Myelofibrosis
Best Available Therapy Versus Autologous Hematopoetic Stem Cell Transplant for Multiple Sclerosis (BEAT-MS)
Recruiting
This is a multi-center prospective rater-masked (blinded) randomized controlled trial of 156 participants, comparing the treatment strategy of Autologous Hematopoietic Stem Cell Transplantation (AHSCT) to the treatment strategy of Best Available Therapy (BAT) for treatment-resistant relapsing multiple sclerosis (MS). Participants will be randomized at a 1 to 1 (1:1) ratio. All participants will be followed for 72 months after randomization (Day 0, Visit 0).
Gender:
ALL
Ages:
Between 18 years and 55 years
Trial Updated:
08/12/2025
Locations: Stanford Multiple Sclerosis Center, Palo Alto, California
Conditions: Relapsing Multiple Sclerosis, Relapsing Remitting Multiple Sclerosis, Secondary Progressive Multiple Sclerosis
Testing Osimertinib as a Treatment for Lung Cancers With an EGFR Exon 20 Change
Recruiting
This phase II trial studies how well osimertinib works in treating patients with non-small cell lung cancer with EGFR exon 20 insertion mutation that is stage IIIB-IV or has come back after a period of improvement (recurrent). Osimertinib may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/12/2025
Locations: Providence Saint Joseph Medical Center/Disney Family Cancer Center, Burbank, California
Conditions: Advanced Lung Non-Small Cell Carcinoma, Recurrent Lung Non-Small Cell Carcinoma, Stage IIIB Lung Non-Small Cell Cancer AJCC v7, Stage IV Lung Non-Small Cell Cancer AJCC v7
Proton and Photon Consortium Registry (PPCR): A Multi Center Registry of Pediatric Patients Treated With Radiation Therapy
Recruiting
In previous studies, Proton Beam Radiation Therapy (PBRT) has been found to show better results in treating patients with cancer, both because there is better control of where in the body the radiation is directed and because it is associated with less severe long term side effects. However, there is limited published data demonstrating these results. The goal of the Proton and Photon Consortium Registry (PPCR) is to enroll children treated with radiation in order to describe the population that... Read More
Gender:
ALL
Ages:
21 years and below
Trial Updated:
08/12/2025
Locations: Stanford University, Palo Alto, California
Conditions: Pediatric Patients Treated With Radiation Therapy
International Collaborative Gaucher Group (ICGG) Gaucher Disease Registry & Pregnancy Sub-registry
Recruiting
The ICGG Gaucher Registry is an ongoing, international multi-center, strictly observational program that tracks the routine clinical outcomes for patients with Gaucher disease, irrespective of treatment status. No experimental intervention is involved; patients in the Registry undergo clinical assessments and receive care as determined by the patient's treating physician. The objectives of the Registry are: * To enhance understanding of the variability, progression, identification, and natural... Read More
Gender:
ALL
Ages:
All
Trial Updated:
08/12/2025
Locations: Tower Hematology/Oncology Medical Group- Site Number : 840056, Beverly Hills, California
Conditions: Gaucher Disease, Cerebroside Lipidosis Syndrome, Glucocerebrosidase Deficiency Disease, Glucosylceramide Beta-Glucosidase Deficiency Disease
Safety Study of ViaskinĀ® Peanut Patch in Peanut-Allergic Children 1 Through 3 Years of Age (COMFORT Toddlers)
Recruiting
The primary objective of this study is to assess the 6-month safety of DBV712 250 micrograms (mcg) in subjects 1 through 3 years of age with peanut allergy.
Gender:
ALL
Ages:
Between 1 year and 3 years
Trial Updated:
08/11/2025
Locations: Modena Allergy & Asthma, La Jolla, California
Conditions: Allergy, Peanut Allergy
A Study Comparing Zasocitinib (TAK-279) With Deucravacitinib in Adults With Plaque Psoriasis
Recruiting
The main aim of this study is to assess whether zasocitinib works better than deucravacitinib in treating participants with moderate-to-severe plaque psoriasis. Participants will take one tablet daily of either zasocitinib or a matching placebo, along with one capsule daily of either over-encapsulated deucravacitinib or a matching placebo, for a duration of 16 weeks. Participants will be in the study for up to 25 weeks, which includes screening period of up to 35 days, a 16-week treatment peri... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/11/2025
Locations: Zenith Research, Inc., Beverly Hills, California
Conditions: Plaque Psoriasis
A Study to Evaluate the Efficacy and Safety of KarXT for the Treatment of Manic Episodes in Bipolar-I Disorder (BALSAM-2)
Recruiting
This is a Phase 3, randomized, double-blind, placebo-controlled, multicenter, inpatient study in participants with bipolar disorder experiencing an acute episode of mania or mania with mixed features. The primary objective of the study is to evaluate the efficacy of KarXT compared to placebo in treating symptoms of mania during a 3-week inpatient period. The duration of the study including screening, the double-blind inpatient treatment period and safety-follow-up is no more than seven weeks.
Gender:
ALL
Ages:
Between 18 years and 65 years
Trial Updated:
08/11/2025
Locations: Proscience Research Group, Culver City, California
Conditions: Bipolar Disorder Type I With Mania or Mania With Mixed Features
A Clinical Study to Investigate the Efficacy and Safety of an Investigational Combination Therapy With BNT324 and BNT327 in Patients With Advanced Lung Cancer
Recruiting
This study aims to investigate the combination of BNT324, a B7-H3 antibody-drug conjugate (ADC) with BNT327, a programmed death-ligand 1 (PD-L1) and vascular endothelial growth factor (VEGF) bispecific antibody, in participants with advanced/metastatic or relapsed/progressive small cell lung cancer (SCLC) and non small cell lung cancer (NSCLC).
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/11/2025
Locations: Precision NextGen Oncology and Research Center, Beverly Hills, California
Conditions: Advanced Lung Cancer