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California Paid Clinical Trials
A listing of 5615 clinical trials in California actively recruiting volunteers for paid trials and research studies in various therapeutic areas.
1981 - 1992 of 5615
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California is currently home to 5615 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.
Featured Trial
Paid Clinical Studies Nationwide
Recruiting
Nationwide clinical trials offered in your area. Some trials offering up to several thousand dollars in compensation for participation.
Featured Trial
Chronic Cough Research Study
Recruiting
Are you tired of living with chronic cough? Our research study is now looking to enroll people from all backgrounds to help research potential new treatment options for chronic cough.
You are under no obligation to take part and health insurance is not required. Find out more today! We’d love to hear from you!
You are under no obligation to take part and health insurance is not required. Find out more today! We’d love to hear from you!
Conditions:
Chronic Cough
Refractory or Unexplained Chronic Cough
Cough
Asthma
Sinusitis
Featured Offer
Lose Weight with GLP-1 Medications
Recruiting
Policy Lab has partnered with OnlineSemaglutide.org to offer trusted access to semaglutide and other GLP-1 medications, including generic alternatives to Ozempic® and Wegovy®.
GLP-1 medications are scientifically backed to help individuals achieve significant weight loss—on average, 15-20% of body weight within a year.
As a valued user, you’re eligible for $100 off your first program with code policy-lab-100.
GLP-1 medications are scientifically backed to help individuals achieve significant weight loss—on average, 15-20% of body weight within a year.
As a valued user, you’re eligible for $100 off your first program with code policy-lab-100.
Conditions:
Overweight
Overweight and Obesity
Obesity
Weight Loss
Morbid Obesity
Featured Trial
Depressive disorder Clinical Study
Recruiting
A clinical study for people that suffer with Depressive disorder
Conditions:
Depressive disorder
A Safety and Efficacy Study Evaluating CTX131 in Adult Subjects With Relapsed/Refractory Hematologic Malignancies
Recruiting
This is an open label, multicenter, phase 1/2 dose evaluation and cohort expansion study evaluating the safety and efficacy of CTX131 in subjects with Relapsed/Refractory Hematologic Malignancies
Gender:
ALL
Ages:
Between 18 years and 100 years
Trial Updated:
06/27/2025
Locations: Research Site 5, Stanford, California
Conditions: T Cell Lymphoma, B Cell Lymphoma, Acute Myeloid Leukemia
A Phase 1/2 Trial of ADI-270 in ccRCC
Recruiting
This is a Phase 1/2 multicenter, open-label, dose escalation, and dose expansion study of ADI-270 - an Engineered gamma-delta Chimeric Receptor \[CAR\] Vδ1 T Cell product Targeting CD70 - in patients with R/R ccRCC.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/27/2025
Locations: Adicet Clinical Trials, Redwood City, California
Conditions: Clear Cell Renal Cell Carcinoma
Study to Evaluate ACDN-01 in ABCA4-related Stargardt Retinopathy (STELLAR)
Recruiting
This study is an open-label, single ascending dose clinical trial in participants who have ABCA4-related retinopathies. This is the first-in-human clinical trial in which ACDN-01 will be evaluated for safety, tolerability, and preliminary efficacy following a single subretinal injection of ACDN-01.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/27/2025
Locations: University of San Francisco, San Francisco, California
Conditions: Stargardt Disease, Cone Rod Dystrophy, Juvenile Macular Degeneration, Stargardt Disease 1
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
1981 - 1992 of 5615
Kaiser Permanente houses over 6,000 physicians in southern California and it is also one of the largest research centers on the state. On its clinical trial division, Kaiser Permanente conducts clinical trials of almost every specialty funded by pharmaceutical companies, government, and foundations.
The Cedars-Sinai Medical Center located in Los Angeles is one of the largest research centers owned and operated by a private hospital in the United States. Focusing on biomedical, cancer, and heart research among other specialties, you can find almost any type of clinical trials for both health and non-healthy volunteers at the research division of Cedar-Sinai Medical Center.
There are around 100,000 clinical trials happening every year across the United States about almost every condition out there. While most clinical trials are testing drugs or medical devices there are also many behavioral and observational trials going on at any point in time. Many paid research studies are held at these California locations.
Clinical trials are incredibly important for making new medical and scientific discoveries, finding new and better methods for diagnosing medical conditions early, testing new interventions, and even developing safer and more effective surgical procedures.
In order for all these discoveries to me made available to the general population they need to go through years of rigorous testing both in healthy and non-healthy volunteers. During those years, medical professionals follow a protocol that has been previously approved by the FDA or other regulatory agency to test the effectiveness and safety of their discovery.
Other people choose to participate in a clinical trial because they feel it is a good way to contribute to the advancement of medical knowledge and that their participation can help many people in the future. The following lists of trials are broken down by condition, and to find a specific clinical trial in your area click through to clinicaltrials.gov.
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