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California Paid Clinical Trials
A listing of 5602 clinical trials in California actively recruiting volunteers for paid trials and research studies in various therapeutic areas.
601 - 612 of 5602
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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.
Featured Trial
Healthy Participants Needed (Colonoscopy + Cancer Screening)
Recruiting
Earn $325 - $475 in electronic payment card compensation for your time and effort by participating in a clinical study to develop a blood test that may one day help screen for colon cancer. Take a quick quiz to see if you qualify.
Conditions:
Healthy
Healthy Volunteers
Healthy Subjects
Healthy Volunteer
Healthy Participants
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.
Conditions:
Healthy
Healthy Volunteer Study
Featured Trial
Buy Retatrutide Online Through Celia
Recruiting
Retatrutide (formerly M25) is an investigational peptide being studied for its potential in supporting weight management and metabolic health. It acts on GLP-1, GIP, and glucagon receptors to influence appetite, energy regulation, and fat metabolism.
Conditions:
Healthy
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Recruiting
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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 $50 off your first program with code policy-lab-50.
Conditions:
Overweight
Overweight and Obesity
Obesity
Weight Loss
Morbid Obesity
Featured Trial
Depression Clinical Trial
Recruiting
Join us in researching a potential investigational treatment for Depression. Reimbursement for study-related expenses may be available to you.
Qualifying participants:
•Are between 18-65
•Have been experiencing a major depressive episode for at least a month
Qualifying participants:
•Are between 18-65
•Have been experiencing a major depressive episode for at least a month
Conditions:
Depression
Major Depressive Disorder
Depressive Disorder
Depressive Symptoms
Depressive Disorder
Highly Selective CDK7 Inhibitor Q901 in Selected Advanced Solid Tumors
Recruiting
Multicenter, open-label, dose-escalation, safety, tolerability, PK and pharmacodynamic study with a dose expansion at the RP2D to evaluate safety and potential antitumor activity of Q901 as a monotherapy and in combination with pembrolizumab
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/13/2025
Locations: University of Southern California, Los Angeles, California
Conditions: Advanced Cancer, Metastatic Cancer
Testing the Safety and Tolerability of the Anti-cancer Drugs Trastuzumab Deruxtecan and Neratinib for Cancers With Changes in the HER2 Gene
Recruiting
This phase I trial tests the safety, side effects, and best dose of neratinib in combination with trastuzumab deruxtecan in treating patients with solid tumors that have spread from where it first started (primary site) to other places in the body (metastatic) or that cannot be removed by surgery (unresectable), and have changes in a gene called human epidermal growth factor receptor 2 (HER2). Neratinib is in a class of medications called kinase inhibitors. It works by blocking the action of an... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/13/2025
Locations: City of Hope Comprehensive Cancer Center, Duarte, California
Conditions: Metastatic Malignant Solid Neoplasm, Unresectable Malignant Solid Neoplasm
Study of AZD5305 When Given in Combination With New Hormonal Agents in Patients With Metastatic Prostate Cancer
Recruiting
This study will evaluate the safety, tolerability, pharmacokinetics (PK), pharmacodynamics, and preliminary efficacy of AZD5305 when given in combination with new hormonal agents (NHAs) in patients with Metastatic Prostate Cancer.
Gender:
MALE
Ages:
Between 18 years and 130 years
Trial Updated:
08/13/2025
Locations: Research Site, San Diego, California
Conditions: Metastatic Prostate Cancer
RNS System LGS Feasibility Study
Recruiting
To generate preliminary safety and effectiveness data for brain-responsive neurostimulation of thalamocortical networks as an adjunctive therapy in reducing the frequency of generalized seizures in individuals 12 years of age or older with Lennox Gastaut Syndrome (LGS) who are refractory to antiseizure medications.
The intent is to determine the feasibility and the optimal design of a subsequent pivotal study in order to expand the indication for use for the RNS System as a treatment for patien... Read More
Gender:
ALL
Ages:
12 years and above
Trial Updated:
08/13/2025
Locations: University of California, San Francisco, San Francisco, California
Conditions: Epilepsy, Lennox Gastaut Syndrome, Lennox-Gastaut Syndrome, Intractable, Seizures, Seizures, Generalized
Study With Elranatamab Versus Lenalidomide in Patients With Newly Diagnosed Multiple Myeloma After Transplant
Recruiting
The purpose of this study is to evaluate whether elranatamab monotherapy can provide clinical benefit compared to lenalidomide monotherapy (control) in participants with newly diagnosed multiple myeloma after undergoing autologous stem cell transplant. In Part 1 and Part 2 of the study, participants in the study will either receive elranatamab (arm A and C) as an injection under the skin at the study clinic or lenalidomide orally once daily at home (arm B). Participation in the study will be app... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/13/2025
Locations: Ronald Reagan UCLA Medical Center, Los Angeles, California
Conditions: Multiple Myeloma
MiSight 1 Day Post-Approval Study for Effectiveness and Visual Symptoms
Recruiting
The purpose of this post-approval study is to confirm the effectiveness of the MiSight 1 Day lens in clinical practices within the US and to assess the stability of the myopia reduction over one-year post-treatment.
Gender:
ALL
Ages:
Between 8 years and 12 years
Trial Updated:
08/13/2025
Locations: Marshall B. Ketchum University Southern California College of Optometry, Fullerton, California
Conditions: Myopia
MiSight 1 Day Safety Post-Approval Study
Recruiting
The purpose of this post-approval study is to confirm the safety of daily disposable soft contact lens wear among the intended patient population for the MiSight 1 Day lens in the US.
Gender:
ALL
Ages:
Between 8 years and 12 years
Trial Updated:
08/13/2025
Locations: University of California, Berkeley University Eye Center, Berkeley, California
Conditions: Myopia
Phase 3 Study of Teclistamab in Combination With Lenalidomide and Teclistamab Alone Versus Lenalidomide Alone in Participants With Newly Diagnosed Multiple Myeloma as Maintenance Therapy Following Autologous Stem Cell Transplantation
Recruiting
This is a multicenter, randomized, open-label, Phase 3 study in participants with newly diagnosed multiple myeloma to evaluate the benefits of teclistamab in combination with lenalidomide and teclistamab alone versus lenalidomide alone as maintenance therapy after autologous stem cell transplant.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/13/2025
Locations: University of California-Davis Cancer Center, Sacramento, California
Conditions: Multiple Myeloma
Efficacy and Safety Study of Rimegepant for the Preventative Treatment of Migraine in Pediatric Subjects
Recruiting
The purpose of this study is to compare the efficacy and safety of rimegepant to placebo as a preventative treatment for migraine in children and adolescents ≥ 6 to \<18 years with episodic migraine.
Gender:
ALL
Ages:
Between 6 years and 17 years
Trial Updated:
08/13/2025
Locations: Advanced Investigative Medicine, Inc., Hawthorne, California
Conditions: Migraine
A Study of AMG 193 in Participants With Advanced MTAP-null Solid Tumors (MTAPESTRY 101)
Recruiting
The primary objective of Parts 1 and 2 of this study is to evaluate the safety, tolerability, and to determine the maximum tolerated dose (MTD) or recommended phase 2 dose (RP2D) of AMG 193 alone and in combination with docetaxel in adult participants with metastatic or locally advanced methylthioadenosine phosphorylase (MTAP)-null solid tumors.
The primary objective of Part 3 of this study is to evaluate the efficacy of AMG 193 in adult participants with metastatic or locally advanced MTAP-nul... Read More
Gender:
ALL
Ages:
Between 18 years and 100 years
Trial Updated:
08/13/2025
Locations: City of Hope National Medical Center, Duarte, California
Conditions: Advanced MTAP-null Solid Tumors
Study Comparing Blinatumomab Alternating With Low-intensity Chemotherapy Versus Standard of Care Chemotherapy for Older Adults With Newly Diagnosed Philadelphia-negative B-cell Precursor Acute Lymphoblastic Leukemia
Recruiting
The safety run-in part of the study aims to evaluate the safety and tolerability of blinatumomab alternating with low-intensity chemotherapy. The phase 3 part of the study aims to compare event-free survival (EFS) and overall survival (OS) of participants receiving blinatumomab alternating with low-intensity chemotherapy to EFS and (OS) of participants receiving standard of care (SOC) chemotherapy.
Gender:
ALL
Ages:
Between 40 years and 100 years
Trial Updated:
08/13/2025
Locations: City of Hope National Medical Center, Duarte, California
Conditions: Newly Diagnosed Philadelphia (Ph)-Negative B-cell Precursor Acute Lymphoblastic Leukemia (ALL)
Long-term Safety Study of Rimegepant in Pediatric Subjects for the Acute Treatment of Migraine
Recruiting
The purpose of this study is to test the long-term safety of rimegepant in the acute treatment of migraine in children and adolescents (≥ 6 to \< 18 years of age).
Gender:
ALL
Ages:
Between 6 years and 17 years
Trial Updated:
08/13/2025
Locations: Advanced Research Center, Inc., Anaheim, California
Conditions: Acute Treatment of Migraine
601 - 612 of 5602
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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