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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.
205 - 216 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
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 $50 off your first program with code policy-lab-50.
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
Chronic Cough Study
Recruiting
Are you tired of living with chronic cough? The ASPIRE 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.
Conditions:
Chronic Cough
Refractory or Unexplained Chronic Cough
Cough
Asthma
Allergic Asthma
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
A Study to Compare the Efficacy of Nivolumab and Relatlimab Plus Chemotherapy vs Pembrolizumab Plus Chemotherapy for Stage IV/Recurrent Non-squamous Non-small Cell Lung Cancer With PD-L1 Expression ≥ 1%
Recruiting
The purpose of this study is to compare the efficacy of Nivolumab and Relatlimab in combination with chemotherapy to Pembrolizumab with Chemotherapy in participants with stage IV or recurrent Non-squamous Non-small Cell Lung Cancer with PD-L1 expression ≥ 1%
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/19/2025
Locations: Local Institution - 0112, Los Angeles, California
Conditions: Non-small Cell Lung Cancer
Evaluate Safety and Pharmacokinetics of INF904 in Subjects With Moderate to Severe Chronic Spontaneous Urticaria or Hidradenitis Suppurativa
Recruiting
The study duration for an individual subject includes screening (14 days), the treatment period (28 days) and the observational follow-up period of 28 days, in total 70 days ± 6 days. All subjects will receive IMP for 28 days followed by one End of Study (EOS) visit, 4 weeks after EOT visit.
Gender:
ALL
Ages:
Between 18 years and 99 years
Trial Updated:
08/19/2025
Locations: First OC Dermatology Research Inc., Fountain Valley, California
Conditions: Chronic Urticaria, Idiopathic, Hidradenitis, Hidradenitis Suppurativa
Prospective Non-Interventional Study Comparing Osimertinib +/- Chemotherapy for EGFR-Mutated NSCLC Patients
Recruiting
The goal of the study is to collect data on patients treated outside of a clinical trial (in routine clinical practice) with standard of care osimertinib with or without chemotherapy in Epidermal Growth Factor Receptor (EGFR)-mutant Non-Small Cell Lung Cancer (NSCLC) to better understand the safety and effectiveness of these standard of care regimens.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/19/2025
Locations: John Muir Health, Walnut Creek, California
Conditions: Non Small Cell Lung Cancer, Epidermal Growth Factor Receptor Gene Mutation, Stage III Lung Cancer, Stage IV Lung Cancer
Substudy 06C: A Study of Sacituzumab Tirumotecan (MK-2870) With Pembrolizumab (MK-3475) and Chemotherapy in Participants With First-Line Locally Advanced Unresectable/Metastatic Gastroesophageal Adenocarcinoma (MK-3475-06C/KEYMAKER-U06)
Recruiting
This is a phase 1/2, multicenter, open-label umbrella platform study that will evaluate the safety and tolerability of sacituzumab tirumotecan with pembrolizumab and fluoropyrimidine chemotherapy for the first-line (1L) treatment of participants with locally advanced unresectable or metastatic human epidermal growth factor receptor 2 (HER2)-negative gastric, gastroesophageal junction, or esophageal adenocarcinoma.
This substudy will have two phases: a safety lead-in phase and an efficacy phase.... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/19/2025
Locations: UCLA Hematology/Oncology - Santa Monica ( Site 6905), Los Angeles, California
Conditions: Gastroesophageal Junction, Gastroesophageal Adenocarcinoma, Esophageal Neoplasms, Esophageal Cancer
Chronic Nausea and Vomiting in Patients With Normal Gastric Emptying Using the Enterra® Therapy System (NAVIGATE)
Recruiting
The purpose of this research study is to determine if the Enterra® Therapy System can decrease nausea and vomiting symptoms and improve the quality of life for patients with chronic nausea, with or without vomiting, that have normal gastric emptying.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/19/2025
Locations: Sutter Health, San Francisco, California
Conditions: Nausea, Vomiting
Safety and Tolerability Study of GIM-531 in Advanced Solid Tumors
Recruiting
GIM-531 is a first-in-class, orally bioavailable small molecule that is being developed for the treatment of advanced solid tumors as a single agent and rescue therapy. GIM-531 exhibits its primary effect through selective inhibition of regulatory T-cells (Tregs).
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/19/2025
Locations: Comprehensive Blood and Cancer Center, Bakersfield, California
Conditions: Melanoma Stage IV, Solid Tumor
A Study to Determine if BHV-7000 is Effective and Safe in Adults With Idiopathic Generalized Epilepsy With Generalized Tonic-clonic Seizures
Recruiting
The purpose of this study is to determine whether BHV-7000 is effective in the treatment of idiopathic generalized epilepsy with generalized tonic-clonic seizures and includes an additional open-label extension (OLE) phase.
Gender:
ALL
Ages:
Between 18 years and 75 years
Trial Updated:
08/19/2025
Locations: Amicis Research Center, Lancaster, California
Conditions: Generalized Epilepsy
A Study of Upadacitinib in Adult Participants With Moderate-to-Severe Atopic Dermatitis and Inadequate Response to Dupilumab
Recruiting
Atopic dermatitis (AD) is a skin condition that may cause a rash and itching due to inflammation of the skin. Therapies spread over the skin may not be enough to control the AD in trial participants who require systemic anti-inflammatory treatment. This study aims to provide data on the efficacy and safety of upadacitinib at different doses in adult participants with moderate to severe AD.
Upadacitinib is an approved drug for the treatment of moderate to severe atopic dermatitis (AD). This stud... Read More
Gender:
ALL
Ages:
Between 18 years and 63 years
Trial Updated:
08/19/2025
Locations: Private Practice - Dr. Tooraj Raoof /ID# 263849, Encino, California
Conditions: Atopic Dermatitis
Modified Pivotal Response Treatment for Insistence on Sameness in Autistic Youth
Recruiting
The purpose of this open label trial is to examine the preliminary feasibility, acceptability, and effectiveness of a 12-week behavioral intervention program (1 hour/week) to treat insistence on sameness (e.g., difficulty tolerating changes in routine) in youth with autism spectrum disorder (ASD). Treatment will be delivered via secure telemedicine platform and consist of a combination of parent-training and parent-mediated intervention with the child.
Gender:
ALL
Ages:
Between 4 years and 17 years
Trial Updated:
08/19/2025
Locations: 401 Quarry Road (Remote Study), Stanford, California
A Study Evaluating AMG 193 in Combination With Other Therapies in Participants With Advanced Gastrointestinal, Biliary Tract, or Pancreatic Cancers With Homozygous Methylthioadenosine Phosphorylase (MTAP)-Deletion (MTAPESTRY 103)
Recruiting
The study aims to determine maximum tolerated dose (MTD) or recommended combination dose of the MTA-cooperative PRMT5 inhibitor AMG 193 administered in combination with other therapies in adult participants with metastatic or locally advanced methylthioadenosine phosphorylase (MTAP)-deleted gastrointestinal, biliary tract, or pancreatic cancers. The study also aims to determine the safety profile of AMG 193 administered in combination with other therapies in adult participants with metastatic or... Read More
Gender:
ALL
Ages:
Between 18 years and 100 years
Trial Updated:
08/19/2025
Locations: Comprehensive Blood and Cancer Center, Bakersfield, California
Conditions: Advanced Gastrointestinal, Biliary Tract, and Pancreatic Cancers
A Study to Investigate the Pharmacokinetics and Safety of Dupilumab in Participants ≥6 Months to <18 Years of Age With Prurigo Nodularis
Recruiting
This is a Phase 3, multicenter, open-label, pharmacokinetics (PK)/safety study.
The study consists of 3 periods:
* Screening period: 2 to 4 weeks.
* Treatment period: 24 weeks.
* Post-intervention follow-up period: 16 weeks. The study duration will be approximately 42 to 44 weeks for each participant (including screening, treatment, and follow-up periods).
The total number of planned study visits for each participant will be 6.
Gender:
ALL
Ages:
Between 6 months and 17 years
Trial Updated:
08/19/2025
Locations: Mission Dermatology Center- Site Number : 8400011, Rancho Santa Margarita, California
Conditions: Prurigo Nodularis
A Study to Examine the Safety of Different Doses of BG-68501 Given to Participants With Advanced-Stage Tumors
Recruiting
This study is a first-in-human (FIH), Phase 1a/1b study of BG-68501, a cyclin-dependent kinase-2 inhibitor (CDK2i), to assess the safety, tolerability, pharmacokinetics (PK), pharmacodynamics, and preliminary antitumor activity of BG-68501 in participants with advanced, nonresectable, or metastatic solid tumors as monotherapy and in combination with fulvestrant with or without BGB-43395, a selective CDK4 inhibitor, in adults with hormone receptor positive (HR+)/human epidermal growth factor rece... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/19/2025
Locations: Hoag Memorial Presbyterian, Newport Beach, California
Conditions: Breast Cancer, Small Cell Lung Cancer, Ovarian Cancer, Gastric Cancer, Hormone-receptor-positive Breast Cancer, Hormone Receptor Positive HER-2 Negative Breast Cancer, Advanced Solid Tumor, Endometrial Cancer, Prostate Cancer, TNBC - Triple-Negative Breast Cancer, GastroEsophageal Cancer, Bladder Cancer
205 - 216 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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