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Washington Paid Clinical Trials
A listing of 1729 clinical trials in Washington actively recruiting volunteers for paid trials and research studies in various therapeutic areas.
997 - 1008 of 1729
Washington is currently home to 1729 active clinical trials, seeking participants for engagement in research studies. These trials take place at a variety of cities in the state, including Seattle, Spokane, Tacoma and Vancouver. 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
Featured Offer
Find the Best GLP-1 Weight Loss Providers (2025)
Recruiting
Cutting-edge GLP-1 treatments like semaglutide and tirzepatide are helping thousands lose weight with medically guided support. But with so many online providers, how do you know which programs are trusted, affordable, and right for you?
We reviewed the top GLP-1 brands of 2025 — comparing pricing, prescription process, shipping, pharmacy partners, and real user ratings — to help you find a safe, convenient, and effective path toward your weight-loss goals.
- 100% online programs
- Licensed U.S. clinicians
- Fast shipping & flexible payments
See the rankings & choose the GLP-1 provider that fits your life.
We reviewed the top GLP-1 brands of 2025 — comparing pricing, prescription process, shipping, pharmacy partners, and real user ratings — to help you find a safe, convenient, and effective path toward your weight-loss goals.
- 100% online programs
- Licensed U.S. clinicians
- Fast shipping & flexible payments
See the rankings & choose the GLP-1 provider that fits your life.
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
A Fluorescent Tumor Marking Agent, Tozuleristide, for Imaging Oral Cavity Squamous Cell Cancer and High-Grade Oral Cavity Dysplasia During Surgery
Recruiting
This phase I/II trial studies the side effects of tozuleristide in imaging oral cavity squamous cell cancer and high-grade oral cavity dysplasia during surgery. Tozuleristide is an imaging agent that specifically binds to tumor cells. When exposed to near-infrared light, tozuleristide causes tumor cells to fluoresce (light up), so that surgeons may better distinguish tumor cells from healthy cells during surgery.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/09/2025
Locations: Fred Hutch/University of Washington Cancer Consortium, Seattle, Washington
Conditions: Oral Cavity Squamous Cell Carcinoma, Stage I Lip and Oral Cavity Cancer AJCC v8, Stage II Lip and Oral Cavity Cancer AJCC v8, Stage III Lip and Oral Cavity Cancer AJCC v8, Stage IVA Lip and Oral Cavity Cancer AJCC v8
Assessing Minimal Residual Disease by Next- Generation Sequencing to Minimize Exposure in People With CLL or SLL Who Have Been Treated With Venetoclax
Recruiting
This study will find out whether people with CLL or SLL who have received treatment with venetoclax, either alone or in combination with another drug, and who are found to be MRD-negative, can stop treatment with venetoclax and remain off-treatment for 12 months or more. The researchers will also see whether study participants remain MRD-negative after they stop treatment with venetoclax.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/09/2025
Locations: University of Washington, Seattle, Washington
Conditions: Chronic Lymphocytic Leukemia (CLL), Small Lymphocytic Lymphoma (SLL)
A Randomized Trial to Evaluate Sequential vs Simultaneous Patching
Recruiting
A randomized trial to determine whether simultaneous treatment with spectacles and patching has an equivalent VA outcome compared with sequential treatment, first with spectacles alone followed by patching (if needed), for previously untreated amblyopia in children 3 to \<13 years of age.
Gender:
ALL
Ages:
Between 3 years and 13 years
Trial Updated:
06/09/2025
Locations: Seattle Children's Hospital, University of Washington, Seattle, Washington
Conditions: Amblyopia
A Study to Evaluate the Efficacy and Safety of Tarcocimab Tedromer and Tabirafusp Tedromer Compared to Aflibercept in Participants With Neovascular (Wet) Age-related Macular Degeneration (wAMD) - DAYBREAK
Recruiting
A Study to Evaluate the Efficacy and Safety of Tarcocimab Tedromer and Tabirafusp Tedromer Compared to Aflibercept in Participants with Neovascular (Wet) Age-related Macular Degeneration (wAMD)
Gender:
ALL
Ages:
50 years and above
Trial Updated:
06/06/2025
Locations: Pacific Northwest Retina, Bellevue, Washington
Conditions: Wet Age-related Macular Degeneration
PIvotal Trial of the KARDION Cory P4 MechANical Circulatory SupporT SystEm
Recruiting
This purpose of this trial is to demonstrate 30 day safety and effectiveness outcomes of the KARDION CORY P4 System in subjects who require hemodynamic support during a high-risk PCI procedure.
Gender:
ALL
Ages:
Between 18 years and 90 years
Trial Updated:
06/06/2025
Locations: University of Washington, Seattle, Washington
Conditions: Coronary Artery Disease
Extended-release Buprenorphine Compared to Sublingual Buprenorphine in Rural Settings (RXR)
Recruiting
This pilot trial will explore the feasibility, acceptability, and effectiveness of the most recently approved formulation of injectable extended-release buprenorphine (XR-BUP) for treatment of opioid use disorder (OUD) in rural settings. We will randomize 144 eligible individuals with moderate to severe OUD in a 2:1 ratio to one of two medication conditions: (1) XR-BUP (128mg target), administered every 4 weeks or (2) SL-BUP (16mg-24 mg/day target).Participants will receive study medication trea... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/06/2025
Locations: Providence Northeast Washington Medical Group, Colville, Washington
Conditions: Opioid-Related Disorders, Substance-Related Disorders, Narcotic-Related Disorders
Targeted Pediatric High-Grade Glioma Therapy
Recruiting
The goal of this study is to perform genetic sequencing on brain tumors from children, adolescents, and young adult patients who have been newly diagnosed with a high-grade glioma. This molecular profiling will decide if patients are eligible to participate in a subsequent treatment-based clinical trial based on the genetic alterations identified in their tumor.
Gender:
ALL
Ages:
Between 12 months and 39 years
Trial Updated:
06/06/2025
Locations: Seattle Children's Hospital, Seattle, Washington
Conditions: High Grade Glioma, Diffuse Intrinsic Pontine Glioma, Anaplastic Astrocytoma, Glioblastoma, Glioblastoma Multiforme, Diffuse Midline Glioma, H3 K27M-Mutant, Metastatic Brain Tumor, WHO Grade III Glioma, WHO Grade IV Glioma
Quantitative MRI Assessment of Breast Cancer Therapy Response
Recruiting
The goal of this observational study is to investigate and validate multi-parametric magnetic resonance imaging (MRI) modalities for assessment of breast cancer response to neoadjuvant chemotherapy in a multi-site and multi-MRI scanner platform setting. This study is conducted at Oregon Health \& Science University (OHSU), University of Washington (UW), and University of Iowa (UI) using Siemens, Philips, and General Electric MRI scanners, respectively. MRI is a type of scan that uses a very stro... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/06/2025
Locations: University of Washington, Seattle, Washington
Conditions: Breast Cancer
Psorcast Mobile Study
Recruiting
The purpose of this study is to understand variation in the symptoms of psoriasis and psoriatic arthritis using simple, scalable smartphone-based measurements. This study uses an iPhone app to record these symptoms through questionnaires and sensors.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/06/2025
Locations: Sage Bionetworks, Seattle, Washington
Conditions: Psoriatic Arthritis, Psoriasis, Psoriatic Conditions, Dermatologic Disease, Rheumatologic Disease, Psoriatic Nail, Plaque Psoriasis, Joint Pain, Dactylitis
STEMVAC in Patients With Early Stage Triple Negative Breast Cancer
Recruiting
This phase II trial studies the effect of DNA plasmid based vaccine (STEMVAC) in treating patients with patients with stage IB-III triple negative breast cancer. STEMVAC may wake up the immune system in patients who have had a diagnosis of triple negative breast cancer and have been treated. STEMVAC targets proteins that are expressed on breast cancer cells and works by boosting the immune system to recognize and destroy the invader cancer cell proteins that are causing the disease. The purpose... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/06/2025
Locations: Fred Hutch/University of Washington Cancer Consortium, Seattle, Washington
Conditions: Anatomic Stage IB Breast Cancer AJCC v8, Anatomic Stage II Breast Cancer AJCC v8, Anatomic Stage IIA Breast Cancer AJCC v8, Anatomic Stage IIB Breast Cancer AJCC v8, Anatomic Stage III Breast Cancer AJCC v8, Anatomic Stage IIIA Breast Cancer AJCC v8, Anatomic Stage IIIB Breast Cancer AJCC v8, Anatomic Stage IIIC Breast Cancer AJCC v8, Prognostic Stage IB Breast Cancer AJCC v8, Prognostic Stage II Breast Cancer AJCC v8, Prognostic Stage IIA Breast Cancer AJCC v8, Prognostic Stage IIB Breast Cancer AJCC v8, Prognostic Stage III Breast Cancer AJCC v8, Prognostic Stage IIIA Breast Cancer AJCC v8, Prognostic Stage IIIB Breast Cancer AJCC v8, Prognostic Stage IIIC Breast Cancer AJCC v8, Triple-Negative Breast Carcinoma
Study of Sparsentan Treatment in Pediatrics With Proteinuric Glomerular Diseases
Recruiting
To evaluate the safety, efficacy and tolerability of sparsentan oral suspension and tablets, and assess changes in proteinuria after once-daily dosing over 108 weeks.
Gender:
ALL
Ages:
Between 1 year and 17 years
Trial Updated:
06/06/2025
Locations: Travere Investigational Site, Seattle, Washington
Conditions: Focal Segmental Glomerulosclerosis, Minimal Change Disease, Immunoglobulin A Nephropathy, Alport Syndrome, IgA Vasculitis
Roflumilast or Azithromycin to Prevent COPD Exacerbations (RELIANCE)
Recruiting
A multi-center, randomized, 72-month, parallel- group, non-inferiority, phase III study to compare the effectiveness of roflumilast (Daliresp, 500 mcg quaque die (QD) or alternate regimen) therapy versus azithromycin (250 mg QD, 500 mg QD three times per week, or alternate regimen) to prevent hospitalization or death in a patients at high risk for COPD exacerbations.
Gender:
ALL
Ages:
40 years and above
Trial Updated:
06/06/2025
Locations: Providence Health and Services, Spokane, Washington
Conditions: Chronic Obstructive Pulmonary Disease Severe, Chronic Bronchitis
