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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.
1333 - 1344 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
CLN-617 Alone and in Combination With Pembrolizumab in Patients With Advanced Solid Tumors
Recruiting
CLN-617-001 is a Phase 1, open-label, dose escalation, dose optimization and dose expansion study of CLN-617 alone and in combination with Pembrolizumab in patients with advanced solid tumors
Gender:
ALL
Ages:
18 years and above
Trial Updated:
02/27/2025
Locations: Fred Hutchinson Cancer Center, Seattle, Washington
Conditions: Advanced Solid Tumor
Safety and Tolerability of Open-Labeled Iloperidone in Adolescents
Recruiting
To evaluate the safety and tolerability of iloperidone in adolescent patients with schizophrenia or bipolar I disorder for up to 52 weeks of treatment.
Gender:
ALL
Ages:
Between 12 years and 17 years
Trial Updated:
02/27/2025
Locations: Vanda Investigational Site, Everett, Washington
Conditions: Schizophrenia, Bipolar I Disorder
Trial of DFP-10917 vs Non-Intensive or Intensive Reinduction for AML Patients in 2nd/3rd/4th Salvage
Recruiting
Phase III, multicenter, randomized study with two arms (1:1 ratio) enrolling patients with AML relapsed/refractory after 2, 3, or 4 prior induction regimens:
Experimental arm: DFP-10917 14-day continuous intravenous (IV) infusion at a dose of 6 mg/m²/day followed by a 14-day resting period per 28-day cycles.
Control arm: Non-Intensive Reinduction (LoDAC, Azacitidine, Decitabine, Venetoclax Combination Regimens) or Intensive Reinduction (High and Intermediate Dose Cytarabine Regimens), dependin... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
02/27/2025
Locations: Multicare Institute for Research and Innovation, Spokane, Washington
Conditions: Leukemia, Myeloid, Acute
Collection and Storage of Tissue and Blood Samples From Patients With Cancer
Recruiting
This study collects and stores tissue and blood samples from patients with cancer. Collecting and storing samples of tissue and blood from patients with cancer to study in the laboratory may help scientists create new and better models to learn about cancer and to test new cancer drugs.
Gender:
ALL
Ages:
2 months and above
Trial Updated:
02/27/2025
Locations: MultiCare Auburn Medical Center, Auburn, Washington
Conditions: Malignant Solid Neoplasm, Metastatic Malignant Solid Neoplasm, Recurrent Malignant Solid Neoplasm, Hematopoietic and Lymphatic System Neoplasm
Registry of Patients With Brain Tumors Treated With STaRT (GammaTiles)
Recruiting
The objectives of this registry study are to evaluate real-world clinical outcomes and patient reported outcomes that measure the effectiveness and safety of STaRT.
Gender:
ALL
Ages:
All
Trial Updated:
02/26/2025
Locations: Virginia Mason, Seattle, Washington
Conditions: Brain Tumor, Recurrent, Brain Tumor, Brain Tumor, Primary, Brain Tumor - Metastatic, Brain Tumor, Adult: Glioblastoma, Brain Tumor, Adult Meningioma
Study of LHP588 in Subjects with P. Gingivalis-Positive Alzheimer's Disease
Recruiting
This study is to test LHP588 in persons who have mild to moderate Alzheimer's disease (AD) who have shown progressive mental decline in the last year and who have P. gingivalis infection. P. gingivalis infection has been linked to the development of dementia. LHP588 is designed to target the P. gingivalis bacterium, to potentially help to halt or slow down the progression of AD and its symptoms. A saliva test will be done to determine P. gingivalis infection. Tests for AD include standard questi... Read More
Gender:
ALL
Ages:
Between 55 years and 80 years
Trial Updated:
02/25/2025
Locations: Northwest Clinical Research Center, Bellevue, Washington
Conditions: Alzheimer Disease, Alzheimer Disease Due to P. Gingivalis
Low Dose Mosunetuzumab for the Treatment of Patients With Indolent B-Cell Lymphoma
Recruiting
This phase II trial tests the safety, side effects and effectiveness of mosunetuzumab in treating patients with slow growing (indolent) B-cell lymphoma. Mosunetuzumab is a monoclonal antibody that may interfere with the ability of tumor cells to grow and spread.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
02/25/2025
Locations: Fred Hutch/University of Washington Cancer Consortium, Seattle, Washington
Conditions: Ann Arbor Stage II Follicular Lymphoma, Ann Arbor Stage II Marginal Zone Lymphoma, Ann Arbor Stage III Follicular Lymphoma, Ann Arbor Stage III Marginal Zone Lymphoma, Ann Arbor Stage IV Follicular Lymphoma, Ann Arbor Stage IV Marginal Zone Lymphoma, Grade 1 Follicular Lymphoma, Grade 2 Follicular Lymphoma, Grade 3a Follicular Lymphoma
Contraceptive Efficacy Study of Ovaprene
Recruiting
This will be a multi-center, single arm, open-label study of Ovaprene, a non-hormonal intravaginal ring, to investigate the contraceptive effectiveness, safety and acceptability of Ovaprene.
Gender:
FEMALE
Ages:
Between 18 years and 40 years
Trial Updated:
02/25/2025
Locations: Seattle Clinical Research Center, Seattle, Washington
Conditions: Contraception
CxBladder Surveillance of Intermediate and High-Risk Bladder Cancer Patients
Recruiting
Surveillance for recurrence of urothelial carcinoma (UC) requires frequent cystoscopy, which is invasive, expensive and time-consuming. An accurate urinary biomarker has the potential to reduce the number of cystoscopies required during post-treatment surveillance. This is a prospective single arm multi-center study using the diagnostic CxBladder test with subjects previously diagnosed positive with primary or recurrent UC and who are undergoing a schedule of investigative cystoscopies and treat... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
02/25/2025
Locations: University of Washington School of Medicine, Seattle, Washington
Conditions: Urothelial Bladder Cancer
A Study of Tildrakizumab in Pediatric Subjects With Chronic Plaque Psoriasis
Recruiting
The study has been designed with three components. Part A is an open label PK study followed by a randomized trial component (Part B) followed by open label Long Term Extension (LTE).
The initial PK analysis is first done in adolescent subjects (12 to \<18 years) before initiating the PK study in younger cohort (6 to \<12 years)
Gender:
ALL
Ages:
Between 6 years and 215 months
Trial Updated:
02/25/2025
Locations: Site 14, Spokane, Washington
Conditions: Moderate-to-severe Chronic Plaque Psoriasis
Peritransplant Ruxolitinib for Patients With Primary and Secondary Myelofibrosis
Recruiting
This phase II trial studies how well administering ruxolitinib before, during, and after allogeneic hematopoietic stem cell transplantation works in preventing graft versus host disease and improving transplant outcomes in patients with primary and secondary myelofibrosis. Donor hematopoietic stem cell transplantation (HSCT) is currently the only treatment with proven curative potential for myelofibrosis, however, myelofibrosis patients have a high risk for developing graft versus host disease p... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
02/24/2025
Locations: Fred Hutch/University of Washington Cancer Consortium, Seattle, Washington
Conditions: Primary Myelofibrosis, Secondary Myelofibrosis
Graft Versus Host Disease-Reduction Strategies for Donor Blood Stem Cell Transplant Patients With Acute Leukemia or Myelodysplastic Syndrome (MDS)
Recruiting
This phase II trial investigates two strategies and how well they work for the reduction of graft versus host disease in patients with acute leukemia or MDS in remission. Giving chemotherapy and total-body irradiation before a donor peripheral blood stem cell transplant helps stop the growth of cells in the bone marrow, including normal blood-forming cells (stem cells) and cancer cells. It may also stop the patient's immune system from rejecting the donor's stem cells. When the healthy stem cell... Read More
Gender:
ALL
Ages:
Between 1 year and 60 years
Trial Updated:
02/24/2025
Locations: Fred Hutch/University of Washington Cancer Consortium, Seattle, Washington
Conditions: Acute Lymphoblastic Leukemia, Acute Myeloid Leukemia, Acute Leukemia, Myelodysplastic Syndrome, Myeloproliferative Neoplasm
