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Washington Paid Clinical Trials
A listing of 1721 clinical trials in Washington actively recruiting volunteers for paid trials and research studies in various therapeutic areas.
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Clinical Trial Phase
Washington is currently home to 1721 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
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
PET/CT Changes During Chemoimmunotherapy and Radiation Therapy in Patients With Stage IV Non-small Cell Lung Cancer
Recruiting
This study investigates the changes in positron emission tomography (PET)/computed tomography (CT) imaging scans during chemoimmunotherapy and radiation therapy treatment in patients with stage IV non-small cell lung cancer. Analyzing changes in PET/CT imaging scans may help doctors assess and predict patterns of cancer response to chemoimmunotherapy and radiation therapy.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/12/2025
Locations: Fred Hutch/University of Washington Cancer Consortium, Seattle, Washington
Conditions: Metastatic Lung Non-Small Cell Carcinoma, Recurrent Lung Non-Small Cell Carcinoma, Stage IV Lung Cancer AJCC v8
A Prospective, Multi-center, Randomized Controlled Blinded Trial Demonstrating the Safety and Effectiveness of VNS Therapy® System as Adjunctive Therapy Versus a No Stimulation Control in Subjects With Treatment-Resistant Depression
Recruiting
Objectives of this study are to determine whether active VNS Therapy treatment is superior to a no stimulation control in producing a reduction in baseline depressive symptom severity, based on multiple depression scale assessment tools at 12 months from randomization.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/12/2025
Locations: Center For Anxiety and Depression, Mercer Island, Washington
Conditions: Treatment Resistant Depression
A Global Phase III Study of Rilvegostomig or Pembrolizumab Monotherapy for First-Line Treatment of PD-L1-high Metastatic Non-small Cell Lung Cancer
Recruiting
The purpose of ARTEMIDE-Lung04 is to assess the efficacy and safety of rilvegostomig compared with pembrolizumab monotherapy as 1L treatment in participants with mNSCLC and whose tumors express PD-L1.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/11/2025
Locations: Research Site, Aberdeen, Washington
Conditions: Carcinoma, Non-Small Cell Lung
Simethicone as Part of ERAS in Bariatric Surgery Patients
Recruiting
By conducting this study, we hope to assess if simethicone (also known as Gas Relief or GasX) has an effect on improving gas pain and bloating specifically in patients undergoing foregut procedures to include bariatric procedures (sleeve gastrectomy, Roux-en-Y gastric bypass), hiatal hernia, and gastric surgery.
The purpose of this research is to gather information on the safety and effectiveness of simethicone. Simethicone (more commonly known as Gas Relief or Gas-X) relieves pressure, bloatin... Read More
Gender:
ALL
Ages:
Between 18 years and 89 years
Trial Updated:
06/11/2025
Locations: Madigan Army Medical Center, Tacoma, Washington
Conditions: Simethicone, Bariatric Surgery, Post-operative Pain
An Efficacy, Safety, and Tolerability Study of VRDN-003 in Participants With Active Thyroid Eye Disease (TED)
Recruiting
This is a clinical trial assessing the efficacy, safety, and tolerability of an investigational drug, VRDN-003, in participants with active Thyroid Eye Disease (TED).
Gender:
ALL
Ages:
Between 18 years and 75 years
Trial Updated:
06/11/2025
Locations: University of Washington, Eye institute, Seattle, Washington
Conditions: Thyroid Eye Disease
Phase 1 Study Evaluating BA3182 in Patients With Advanced Adenocarcinoma.
Recruiting
The objective of this study is to assess safety and efficacy of BA3182 in Advanced Adenocarcinoma
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/11/2025
Locations: Fred Hutch Cancer Center, Seattle, Washington
Conditions: Advanced Adenocarcinoma
Efficacy, Safety, and Pharmacokinetics of Vericiguat in Pediatric Participants With Heart Failure Due to Left Ventricular Systolic Dysfunction (MK-1242-036)
Recruiting
This study aims to compare the efficacy of vericiguat versus placebo on change in n-terminal pro-brain natriuretic peptide (NTproBNP) from baseline to Week 16 of the Base Period. The primary hypothesis is that vericiguat is superior to placebo in reducing NT-proBNP at Week 16 of the Base Period.
Gender:
ALL
Ages:
Between 29 days and 17 years
Trial Updated:
06/11/2025
Locations: Seattle Children's Hospital-Cardiology/Fetal Therapy ( Site 0019), Seattle, Washington
Conditions: Heart Failure, Left Ventricular Systolic Dysfunction
Strategies and Treatments for Respiratory Infections & Viral Emergencies (STRIVE): Shionogi Protease Inhibitor (Ensitrelvir)
Recruiting
Treatments are needed to improve outcomes among patients hospitalized for COVID-19, including direct-acting antiviral (DAA) agents to mitigate the pathology driven by ongoing viral replication. This trial will evaluate S-217622 (ensitrelvir), an anti-SARS-CoV2 3C-like protease inhibitor (PI) developed by Shionogi \&; Co. Ltd.
The study design is a randomized, placebo-controlled, multi-center international clinical trial that will evaluate the clinical efficacy of ensitrelvir when given in addit... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/11/2025
Locations: Harborview Medical Center (208-001), Seattle, Washington
Conditions: COVID-19
Study to Evaluate Sotatercept (MK-7962) in Children With Pulmonary Arterial Hypertension (PAH) (MK-7962-008)
Recruiting
The primary objectives of the study are to evaluate the safety and tolerability, and pharmacokinetics (PK) of sotatercept over 24 weeks of treatment in children ≥1 to \<18 years of age with PAH World Health Organization (WHO) Group 1 on standard of care (SoC). There is no formal hypothesis.
Gender:
ALL
Ages:
Between 1 year and 17 years
Trial Updated:
06/11/2025
Locations: Seattle Children's Hospital ( Site 1605), Seattle, Washington
Conditions: Pulmonary Arterial Hypertension
4D-710 in Adult Patients With Cystic Fibrosis
Recruiting
This is a Phase 1/2 multicenter, open-label, single dose trial of 4D-710 investigational gene therapy in adults with cystic fibrosis.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/11/2025
Locations: University of Washington Medical Center, Seattle, Washington
Conditions: Cystic Fibrosis Lung
Study of Dato-DXd Plus Pembrolizumab vs Pembrolizumab Alone in the First-line Treatment of Subjects With Advanced or Metastatic NSCLC Without Actionable Genomic Alterations
Recruiting
This study is designed to assess the efficacy and safety of datopotamab deruxtecan (Dato-DXd) in combination with pembrolizumab versus pembrolizumab alone in participants with advanced or metastatic non-small cell lung cancer (NSCLC) of non-squamous histology.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/11/2025
Locations: Providence Regional Cancer System, Lacey, Washington
Conditions: Metastatic Non Small Cell Lung Cancer
Outpatient Treatment With Anti-Coronavirus Immunoglobulin
Recruiting
The primary objective of the Outpatient Treatment with Anti-Coronavirus Immunoglobulin (OTAC) (INSIGHT 012) trial is to compare the safety and efficacy of a single infusion of anti-COVID-19 hyperimmune intravenous immunoglobulin (hIVIG) versus placebo among adults with recently diagnosed severe acute respiratory syndrome - coronavirus 2 (SARS-CoV2) infection who do not require hospitalization. The primary endpoint of this double-blind randomized trial is a five-category ordinal outcome that asse... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/11/2025
Locations: Swedish Hospital First Hill, Seattle, Washington
Conditions: COVID, SARS-CoV2 Infection, Covid19