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.
Study of Lumateperone in the Treatment of Patients With Bipolar Mania
Recruiting
This is a multicenter, randomized, double-blind, placebo-controlled, study in the acute treatment of patients with a diagnosis of bipolar I disorder with manic episodes or manic episodes with mixed features (bipolar mania), with or without psychotic symptoms, according to criteria of the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM 5).
Gender:
ALL
Ages:
Between 18 years and 75 years
Trial Updated:
06/27/2025
Locations: Clinical Site, Anaheim, California
Conditions: Bipolar Disorder, Manic
Study of Lumateperone in the Acute Treatment of Patients With Bipolar Mania
Recruiting
This is a multicenter, randomized, double-blind, placebo-controlled, study in the acute treatment of patients with a diagnosis of bipolar I disorder with manic episodes or manic episodes with mixed features (bipolar mania), with or without psychotic symptoms, according to criteria of the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM 5).
Gender:
ALL
Ages:
Between 18 years and 75 years
Trial Updated:
06/27/2025
Locations: Clinical Site, Bellflower, California
Conditions: Bipolar Disorder, Manic
Study of AZD0754 in Participants With Metastatic Prostate Cancer
Recruiting
The purpose of this study is to evaluate the safety, tolerability, and antitumour activity of AZD0754 CAR T-cell therapy in participants with metastatic prostate cancer.
Gender:
MALE
Ages:
Between 18 years and 130 years
Trial Updated:
06/27/2025
Locations: Research Site, Duarte, California
Conditions: Metastatic Prostate Cancer
AB-2100, an Integrated Circuit T Cell Therapy in Patients With Recurrent Clear-cell Renal Cell Carcinoma (ccRCC)
Recruiting
This is a multi-center, open-label phase 1/2 trial evaluating the safety and efficacy of AB-2100 cell product. The study may enroll approximately 60 patients in phase 1 and approximately 70 patients in phase 2.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/27/2025
Locations: City of Hope, Duarte, California
Conditions: Advanced/Metastatic Clear Cell Renal Cell Carcinoma, Recurrence
Elucidating the Minimal Effective Dose of Prunes for Bone Health in Postmenopausal Women
Recruiting
The objective of this study is to examine if calcium and vitamin D supplements and/or prune can prevent bone loss in postmenopausal women.
Gender:
FEMALE
Ages:
All
Trial Updated:
06/27/2025
Locations: San Diego State University, San Diego, California
Conditions: Bone Disease, Metabolic
A Study to Learn About the Study Medicine Called PF-07868489 in Healthy Adult People and in People With Pulmonary Arterial Hypertension
Recruiting
The purpose of the study is to learn how the study medicine called PF-07868489 is tolerated and acts in healthy adult people and people with pulmonary arterial hypertension (PAH). Part A: An investigator- and participant-blind, sponsor-open, placebo-controlled, single ascending dose study to assess the safety, tolerability, and pharmacokinetics (PK) of PF-07868489 in healthy adult participants. Part B: A 24-week, randomized, double blind, placebo-controlled study to assess the safety, tolera... Read More
Gender:
ALL
Ages:
Between 18 years and 65 years
Trial Updated:
06/27/2025
Locations: Anaheim Clinical Trials, LLC, Anaheim, California
Conditions: Pulmonary Arterial Hypertension
A Double-Blind, Active-Controlled, Multiple-Ascending Dose Study of Aerosolized RSP-1502 in Subjects With CF and Chronic PA Lung Infection
Recruiting
A double-blind, active-controlled, multiple-ascending dose, safety study of aerosolized RSP-1502 in subjects with cystic fibrosis Pseudomonas aeruginosa lung infection.
Gender:
ALL
Ages:
12 years and above
Trial Updated:
06/27/2025
Locations: Center for Cystic Fibrosis at Keck Medical Center of USC, Los Angeles, California
Conditions: Cystic Fibrosis Lung, Respiratory Infections, Recurrent, Chronic, Pseudomonas Aeruginosa
A Study to Evaluate the Safety of INCA33890 in Participants With Advanced or Metastatic Solid Tumors
Recruiting
To evaluate the safety, tolerability, and DLTs and determine the MTD and/or RDE(s) of INCA33890 in participants with select advanced or metastatic solid tumors.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/27/2025
Locations: The Angeles Clinic and Research Institute, Los Angeles, California
Conditions: Solid Tumors, Advanced Solid Tumors, Metastatic Solid Tumors
Reducing Posttraumatic Stress Disorder (PTSD) Symptoms in First Responders and Frontline Health Care Workers
Recruiting
This study addresses PTSD symptoms in First Responders and Healthcare workers. Specifically, it tests whether a brief PTSD treatment (talk therapy) effectively treats PTSD when provided to First Responders and Healthcare workers by counselors in Employee Assistance Programs (EAPs). The central hypothesis is that the PTSD treatment, Prolonged Exposure for Primary Care (PE-PC), will reduce PTSD symptoms and improve functioning, compared to EAP Treatment as Usual (TAU).
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/27/2025
Locations: Sharp Healthcare, San Diego, California
Conditions: Post Traumatic Stress Disorder
A Randomized Study of XEN1101 Versus Placebo in Focal-Onset Seizures (X-TOLE3)
Recruiting
The X-TOLE3 Phase 3 clinical trial is a randomized, double-blind, placebo-controlled study that will evaluate the clinical efficacy, safety and tolerability of XEN1101 administered as adjunctive therapy in focal-onset seizures.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/27/2025
Locations: Rancho Research Institute, Downey, California
Conditions: Focal Onset Seizures
Novel Combinations in Participants With Locally Advanced Unresectable or Metastatic Gastric or Gastroesophageal Junction Adenocarcinoma
Recruiting
This is a Phase II, open-label, multi-drug, multi-centre study designed to assess the efficacy, safety, tolerability, pharmacokinetics, and immunogenicity of novel combination therapies in participants with locally advanced unresectable or metastatic gastric or GEJ adenocarcinoma.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/27/2025
Locations: Research Site, Los Angeles, California
Conditions: Gastric Cancer
24 Weeks Double-blind Randomized Placebo-controlled Trial to Evaluate Efficacy, PK, Safety of LOU064 in Adolescents (12 - <18) With CSU and Inadequate Response to H1-antihistamine Followed by Optional 3 Years Open-label Extension and an Optional 3 Years Safety Long-term Treatment-free Follow-up
Recruiting
The purpose of this trial is: 1. to assess the efficacy, pharmacokinetics, and safety of remibrutinib vs. placebo in adolescents from 12 to \< 18 years of age suffering from chronic spontaneous urticaria inadequately controlled by H1-antihistamines 2. to collect long-term efficacy, safety and tolerability data on remibrutinib in adolescents after having completed 24 weeks of treatment 3. to collect safety data in this population for up to three years after the last dose of study treatment
Gender:
ALL
Ages:
Between 12 years and 17 years
Trial Updated:
06/27/2025
Locations: Kern Research, Bakersfield, California
Conditions: Chronic Spontaneous Urticaria