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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.
889 - 900 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
Randomized Trial Comparing Immediate vs. Deferred Surgery for Symptomatic ERM
Recruiting
Vitrectomy to remove an epiretinal membrane (ERM) is one of the most common procedures performed by retinal surgeons. Patients who present with significant macular changes on optical coherence tomography (OCT) but relatively good vision are often advised to defer surgery until vision declines to 20/40 or worse. However, it is unknown if delaying surgery, which allows the foveal architecture to remain compromised and potentially to deteriorate, results in worse visual acuity outcomes than if surg... Read More
Gender:
ALL
Ages:
50 years and above
Trial Updated:
06/26/2025
Locations: Spokane Eye Clinical Research, PLLC, Spokane, Washington
Conditions: Epiretinal Membrane
Fenofibrate for Prevention of DR Worsening
Recruiting
This randomized trial will evaluate the effect of fenofibrate compared with placebo for prevention of diabetic retinopathy (DR) worsening through 6 years of follow-up in eyes with mild to moderately severe non-proliferative DR (NPDR) and no CI-DME at baseline.
In addition to evaluating efficacy, this study aims to evaluate the feasibility of a model for ophthalmologists to prescribe or collaborate with a primary care provider such as an internist/endocrinologist to prescribe and monitor the dru... Read More
Gender:
ALL
Ages:
Between 18 years and 80 years
Trial Updated:
06/26/2025
Locations: University of Washington, Seattle, Washington
Conditions: Diabetic Retinopathy
A Phase 3 Study of Pacritinib in Patients With Primary Myelofibrosis, Post Polycythemia Vera Myelofibrosis, or Post-Essential Thrombocythemia Myelofibrosis
Recruiting
This study (study ID PAC203 North America; PAC303 ex-North America) is evaluating 200 mg BID of pacritinib compared to physician's choice (P/C) therapy in patients with MF and severe thrombocytopenia (platelet count \<50,000/μL). Approximately 399 patients in total will be enrolled, randomized 2:1 to either pacritinib (approximately 266 patients) or to P/C therapy (approximately 133 patients)
Condition or disease: Primary Myelofibrosis/Post-Polycythemia Vera Myelofibrosis/ Post-essential Thromb... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/26/2025
Locations: Fred Hutchinson Cancer Research Center, Seattle, Washington
Conditions: Primary Myelofibrosis, Post-polycythemia Vera Myelofibrosis, Post-essential Thrombocythemia Myelofibrosis
Comparing Radiation Therapy to Usual Care for Patients With High-Risk Bone Asymptomatic Metastases
Recruiting
This phase III trial compares the effect of adding radiation therapy to usual care on the occurrence of bone-related complications in cancer patients with high-risk bone metastases that are not causing symptoms (asymptomatic). High-risk bone metastases are defined by their location (including hip, shoulder, long bones, and certain levels of the spine), or size (2 cm or larger). These bone metastases appear to be at higher risk of complications such as fracture, spinal cord compression, and/or pa... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/25/2025
Locations: Saint Michael Cancer Center, Silverdale, Washington
Conditions: Metastatic Malignant Neoplasm in the Bone, Metastatic Malignant Solid Neoplasm
Evaluation of Efficacy and Safety of Suzetrigine for Pain Associated With Diabetic Peripheral Neuropathy
Recruiting
The purpose of this study is to evaluate the efficacy, safety, and tolerability of Suzetrigine (SUZ) in participants with pain associated with diabetic peripheral neuropathy (DPN).
Gender:
ALL
Ages:
Between 18 years and 80 years
Trial Updated:
06/25/2025
Locations: Northwest Clinical Research Center (NWCRC), Bellevue, Washington
Conditions: Diabetic Peripheral Neuropathic Pain
FH-FOLR1 Chimeric Antigen Receptor T Cell Therapy for Treating Pediatric Patients With Relapsed or Refractory Acute Myeloid Leukemia
Recruiting
This phase I trial tests the safety, side effects, and best dose of FH-FOLR1 chimeric antigen receptor (CAR) T cells in treating pediatric patients with FOLR1+ acute myeloid leukemia (AML) that has come back after a period of improvement (recurrent) or has not responded to previous treatment (refractory). CAR T-cell therapy is a type of treatment in which a patient's T cells (a type of immune system cell) are changed in the laboratory so they will attack cancer cells. T cells are taken from a pa... Read More
Gender:
ALL
Ages:
6 years and below
Trial Updated:
06/25/2025
Locations: Fred Hutch/University of Washington/Seattle Children's Cancer Consortium, Seattle, Washington
Conditions: Recurrent Childhood Acute Myeloid Leukemia, Refractory Childhood Acute Myeloid Leukemia
Advancing Transplantation Outcomes in Children
Recruiting
This is a pediatric kidney transplant study comparing the safety and efficacy of an immunosuppressive regimen of belatacept and sirolimus to tacrolimus and Mycophenolate Mofetil (MMF). Two hundred participants will be randomized (1:1) to one of two groups within 24 hours following the transplant procedure. The duration of the study from time of transplant to the primary endpoint is 12-24 months.
Gender:
ALL
Ages:
Between 13 years and 20 years
Trial Updated:
06/25/2025
Locations: Seattle Children's Hospital (Site #: 71041), Seattle, Washington
Conditions: Kidney Transplant
Study of Acalabrutinib and Rituximab in Untreated Elderly and/or Frail Patients With DLBCL
Recruiting
The study will measure the safety, tolerability, and efficacy with acalabrutinib in combination with rituximab in treatment-naïve elderly and/or frail patients with diffuse large B-cell lymphoma (DLBCL), who are otherwise unsuitable for standard front line chemoimmunotherapy treatments.
Gender:
ALL
Ages:
Between 65 years and 99 years
Trial Updated:
06/25/2025
Locations: Research Site, Olympia, Washington
Conditions: Diffuse Large B-Cell Lymphoma
Benchmark Evidence Led by Latin America: Trial of Intracranial Pressure - Pediatrics
Recruiting
Narrative:
Worldwide, traumatic brain injury (TBI) is a leading cause of death and disability among children and adolescents. The Investigators aim to test whether pediatric TBI treatment guided by invasive intracranial pressure monitoring produces better patient outcomes than care guided by a protocol without invasive monitoring. Study findings will inform clinical practice in treating pediatric severe TBI globally. Focused didactic and experience-based learning opportunities will increase the... Read More
Gender:
ALL
Ages:
Between 1 year and 12 years
Trial Updated:
06/25/2025
Locations: University of Washington, Harborview Medical Center, Seattle, Washington
Conditions: Severe Traumatic Brain Injury
Datopotamab Deruxtecan (Dato-DXd) and Pembrolizumab With or Without Platinum Chemotherapy in 1L Non-Small Cell Lung Cancer (TROPION-Lung07)
Recruiting
This study is designed to assess the efficacy and safety of datopotamab deruxtecan (Dato-DXd) in combination with pembrolizumab versus pembrolizumab in combination with pemetrexed and platinum chemotherapy in participants with no prior therapy for advanced or metastatic non-squamous non-small cell lung cancer (NSCLC).
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/25/2025
Locations: Providence Regional Cancer System, Lacey, Washington
Conditions: Metastatic Non Small Cell Lung Cancer
Autologous LN-145 in Patients With Metastatic Non-Small-Cell Lung Cancer
Recruiting
This is a prospective, open-label, multi-cohort, non-randomized, multicenter phase 2 study evaluating LN-145 in patients with metastatic non-small-cell lung cancer
Gender:
ALL
Ages:
Between 18 years and 70 years
Trial Updated:
06/25/2025
Locations: Seattle Cancer Care Alliance, Seattle, Washington
Conditions: Metastatic Non Small Cell Lung Cancer
Testing Low Dose Tamoxifen for Invasive Breast Cancer, the (LoTam) Trial
Recruiting
This phase III trial compares the effect of low dose tamoxifen to usual hormonal therapy, including aromatase inhibitors, in treating post-menopausal women with hormone positive, HER2 negative early stage breast cancer. Tamoxifen is in a class of medications known as antiestrogens. It blocks the activity of estrogen (a female hormone) in the breast. This may stop the growth of some breast tumors that need estrogen to grow. Aromatase inhibitors, such as anastrozole, letrozole, and exemestane, pre... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/24/2025
Locations: Swedish Cancer Institute-Edmonds, Edmonds, Washington
Conditions: Anatomic Stage 0 Breast Cancer AJCC V8, Anatomic Stage 1 Breast Cancer AJCC V8, Anatomic Stage IIA Breast Cancer AJCC V8, Estrogen Receptor-Positive Breast Carcinoma, HER2-Negative Breast Carcinoma
