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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.
1033 - 1044 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
Emicizumab in Patients With Acquired Hemophilia A
Recruiting
This is a phase II multicenter open-label, single-arm prospective study to evaluate the efficacy of prophylactic emicizumab administered on a scheduled basis to prevent bleeds in patients with acquired hemophilia A (AHA).
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/02/2025
Locations: Washington Center for Bleeding Disorders, Seattle, Washington
Conditions: Acquired Hemophilia A
Hyperhydration in Children With Shiga Toxin-Producing E. Coli Infection
Recruiting
The objective of this study is to determine if early high volume intravenous fluid administration (hyperhydration) may be effective in mitigating or preventing complications of shiga toxin-producing E. coli (STEC) infection in children and adolescents when compared with traditional approaches (conservative fluid management).
Gender:
ALL
Ages:
Between 9 months and 21 years
Trial Updated:
06/02/2025
Locations: Seattle Children's Hospital, Seattle, Washington
Conditions: Shiga Toxin-Producing Escherichia Coli (E. Coli) Infection, Hemolytic-Uremic Syndrome
CA-4948-101: Open-Label, Dose Escalation and Expansion Trial of Emavusertib (CA-4948) in Relapsed or Refractory Primary Central Nervous System Lymphoma (R/R PCNSL)
Recruiting
This is a multi-center, open-label study to evaluate the safety, pharmacokinetics (PK), and anti-cancer activity of oral administration of emavusertib alone or in combination with ibrutinib in adult participants with relapsed or refractory (R/R) hematologic malignancies.
This trial will be completed in four parts. In Part A1, emavusertib will be evaluated first in a dose escalating monotherapy setting to establish the safety and tolerability (complete). In Part A2, emavusertib will be evaluated... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/02/2025
Locations: Swedish Cancer Institute, Seattle, Washington
Conditions: Relapsed Hematologic Malignancy, Refractory Hematologic Malignancy, Relapsed Primary Central Nervous System Lymphoma, Refractory Primary Central Nervous System Lymphoma
Study of Tirabrutinib (ONO-4059) in Patients With Primary Central Nervous System Lymphoma (PROSPECT Study)
Recruiting
This study will evaluate the efficacy, safety, and pharmacokinetics of tirabrutinib monotherapy in patients with relapsed or refractory PCNSL (Part A), and tirabrutinib in combination with one of two different high dose methotrexate based regimens (methotrexate/ temozolomide/rituximab or rituximab/methotrexate/procarbazine/ vincristine) as first line therapy in patients with newly diagnosed, treatment naïve PCNSL (Part B)
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/01/2025
Locations: Seattle Cancer Care Alliance, Seattle, Washington
Conditions: Refractory Primary Central Nervous System Lymphoma, Primary CNS Lymphoma
Prevalence of Antibodies and Cytokines in Participants With Chronic Granulomatous Disease
Recruiting
This research study is designed to assess the prevalence of specific antibodies and inflammatory cytokines in adult and pediatric participants with CGD.
Gender:
ALL
Ages:
All
Trial Updated:
05/30/2025
Locations: Home-based telemedicine, Olympia, Washington
Conditions: Chronic Granulomatous Disease (CGD)
Evaluation of the Safety and Effectiveness of ARTIA Reconstructive Tissue Matrix Breast Reconstruction (ADORA) in Adult Participants
Recruiting
The purpose of this study is to evaluate the safety and effectiveness of ARTIA in adult participants undergoing immediate, two-stage, implant-based breast reconstruction post-mastectomy.
Gender:
FEMALE
Ages:
18 years and above
Trial Updated:
05/30/2025
Locations: AG Aesthetic Center /ID# 264233, Vancouver, Washington
Conditions: Breast Reconstruction
Open-label Study of BBO-8520 in Adult Subjects With KRASG12C Non-small Cell Lung Cancer
Recruiting
A first in human study to evaluate the safety and preliminary antitumor activity of BBO-8520, a KRAS G12C (ON and OFF) inhibitor, as a single agent and in combination with pembrolizumab in subjects with locally advanced and unresectable or metastatic non-small cell lung cancer with a KRAS (Kirsten rat sarcoma) G12C mutation.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
05/30/2025
Locations: Fred Hutchinson Cancer Center, Seattle, Washington
Conditions: Non-small Cell Lung Cancer, Metastatic Non-Small Cell Lung Cancer, NSCLC, KRAS G12C, Metastatic Lung Cancer, Advanced Lung Carcinoma
Type 1 Diabetes Impacts of Semaglutide on Cardiovascular Outcomes
Recruiting
This trial plans to learn more about the effects of a medication, semaglutide, on cardiovascular function, kidney function, and insulin sensitivity in adults with type 1 diabetes. This medication has been effective in reducing cardiovascular disease and diabetic kidney disease and improving glucose control and BMI in adults with type 2 diabetes. This study aims to look at how well the medication works in people with type 1 diabetes. Semaglutide is not approved by the FDA to be used in this way.... Read More
Gender:
ALL
Ages:
Between 18 years and 49 years
Trial Updated:
05/30/2025
Locations: University of Washington Medicine Diabetes Institute (UWMDI), Seattle, Washington
Conditions: Diabetes Mellitus, Type 1
Tapinarof for the Treatment of Plaque Psoriasis in Pediatric Subjects
Recruiting
This is an open-label, multi-center, Phase 3 study to evaluate tapinarof cream, 1% in pediatric subjects with plaque psoriasis.
Gender:
ALL
Ages:
Between 2 years and 17 years
Trial Updated:
05/30/2025
Locations: Clinical Site, Spokane, Washington
Conditions: Plaque Psoriasis
EGFR806 CAR T Cell Immunotherapy for Recurrent/Refractory Solid Tumors in Children and Young Adults
Recruiting
This is a phase I, open-label, non-randomized study that will enroll pediatric and young adult research participants with relapsed or refractory non-CNS solid tumors to evaluate the safety, feasibility, and efficacy of administering T cell products derived from the research participant's blood that have been genetically modified to express a EGFR-specific receptor (chimeric antigen receptor, or CAR) that will target and kill solid tumors that express EGFR and the selection-suicide marker EGFRt.... Read More
Gender:
ALL
Ages:
Between 1 year and 30 years
Trial Updated:
05/30/2025
Locations: Seattle Children's Hospital, Seattle, Washington
Conditions: Pediatric Solid Tumor, Germ Cell Tumor, Retinoblastoma, Hepatoblastoma, Wilms Tumor, Rhabdoid Tumor, Carcinoma, Osteosarcoma, Ewing Sarcoma, Rhabdomyosarcoma, Synovial Sarcoma, Clear Cell Sarcoma, Malignant Peripheral Nerve Sheath Tumors, Desmoplastic Small Round Cell Tumor, Soft Tissue Sarcoma, Neuroblastoma
PREVENT HPV-Related Cancers Trial
Recruiting
This study will serve as one of the first to develop and test the effectiveness of strategies to promote HPV vaccination among diverse rural parents and caregivers of children ages 9-17 years in the Mountain West. Once implemented into practice, our intervention could significantly reduce disparities in the burden of HPV-associated cancers among rural populations in the United States.
The proposed study will assess the effectiveness of clinic-based outreach to increase vaccination rates for HPV... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
05/29/2025
Locations: Sea Mar Community Health Centers, Seattle, Washington
Conditions: HPV Vaccination, Uptake Vaccination, Series Completion
Safety and Immunogenicity of Stabilized CH505 TF chTrimer Vaccination in Adults Living With HIV-1 on Suppressive Antiretroviral Therapy
Recruiting
A5422 is a phase 1, randomized, double-blind, placebo-controlled clinical trial to assess the safety, tolerability, and immunogenicity of a vaccination with stabilized CH505 TF chTrimer admixed with 3M-052-AF + Aluminum hydroxide (Alum), to assess the effect of CH505 TF chTrimer vaccine as a therapeutic vaccine in adults living with HIV-1 on suppressive antiretroviral therapy (ART) with the aim of inducing new HIV-1 Envelope (Env) B-cell neutralizing immune responses. Participants will be on stu... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
05/29/2025
Locations: University of Washington Positive Research CRS, Seattle, Washington
Conditions: HIV-1
