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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.
901 - 912 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
Comparing Impact of Treatment Before or After Surgery in Patients With Stage II-IIIB Resectable Non-small Cell Lung Cancer
Recruiting
This phase III trial compares standard therapy given after surgery (adjuvant) to standard therapy given before and after surgery (perioperative) in treating patients with stage II-IIIB non-small cell lung cancer (NSCLC) that can be removed by surgery (resectable). The usual approach for patients with resectable NSCLC is chemotherapy and/or immunotherapy before surgery, after surgery, or both before and after surgery. This study is being done to find out which approach is better at treating patie... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/24/2025
Locations: Saint Michael Cancer Center, Silverdale, Washington
Conditions: Resectable Lung Non-Small Cell Carcinoma, Stage II Lung Cancer AJCC v8, Stage IIIA Lung Cancer AJCC v8, Stage IIIB Lung Cancer AJCC v8
ARTEMIS - A Research Study to Look at How Ziltivekimab Works Compared to Placebo in People With a Heart Attack
Recruiting
The research study is being done to see if ziltivekimab can be used to treat people who were admitted to hospital because of a heart attack. Ziltivekimab might reduce development of heart disease, thereby preventing new heart attacks or strokes. Participants will either get ziltivekimab (active medicine) or placebo (a dummy medicine which has no effect on the body). Which treatment participants get is decided by chance. The chance of getting ziltivekimab or placebo is the same. The participant w... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/24/2025
Locations: Swedish Medical Center_Seattle, Seattle, Washington
Conditions: Cardiovascular Risk, Acute Myocardial Infarction (AMI)
Testing Continuous Versus Intermittent Treatment With the Study Drug Zanubrutinib for Older Patients With Previously Untreated Mantle Cell Lymphoma
Recruiting
This phase III trial tests whether continuous or intermittent zanubrutinib after achieving a complete remission (CR) with rituximab works in older adult patients with mantle cell lymphoma (MCL) who have not received treatment in the past (previously untreated). Rituximab is a monoclonal antibody that may interfere with the ability of cancer cells to grow and spread. Zanubrutinib may stop the growth of cancer cells by blocking some of the enzymes needed for cell growth. When zanubrutinib is used... Read More
Gender:
ALL
Ages:
60 years and above
Trial Updated:
06/24/2025
Locations: Swedish Cancer Institute-Edmonds, Edmonds, Washington
Conditions: Mantle Cell Lymphoma
A Study to Learn About the Effects of Two Study Medicines (Maplirpacept [PF-07901801] And Glofitamab) When Given Together In People With Relapsed Or Refractory Diffuse Large B Cell Lymphoma.
Recruiting
The purpose of this study is to learn about the effects of two study medicines (maplirpacept \[PF-07901801\] and glofitamab) when given together for the treatment of diffuse large B-cell lymphoma (DLBCL) that is relapsed or is refractory. Relapsed means has returned after last treatment. Refractory means that it has not responded to last treatment. The two study medicines are given after a single dose of obinutuzumab which is the third study medicine.
DLBCL is a type of non-Hodgkin lymphoma (NH... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/24/2025
Locations: Swedish Cancer Institute, Seattle, Washington
Conditions: Diffuse Large B-Cell Lymphoma
Pembrolizumab vs. Observation in People With Triple-negative Breast Cancer Who Had a Pathologic Complete Response After Chemotherapy Plus Pembrolizumab
Recruiting
The phase III trial compares the effect of pembrolizumab to observation for the treatment of patients with early-stage triple-negative breast cancer who achieved a pathologic complete response after preoperative chemotherapy in combination with pembrolizumab. Immunotherapy with monoclonal antibodies, such as pembrolizumab, may help the body's immune system attack the cancer, and may interfere with the ability of tumor cells to grow and spread. This trial may help researchers determine if observa... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/24/2025
Locations: FHCC Overlake, Bellevue, Washington
Conditions: Anatomic Stage I Breast Cancer AJCC v8, Anatomic Stage II Breast Cancer AJCC v8, Anatomic Stage III Breast Cancer AJCC v8, Early Stage Triple-Negative Breast Carcinoma
A Study for Participants Previously Treated With Century Therapeutics Cellular Therapy Product
Recruiting
This study is designed to collect long-term safety and survival data from participants previously treated in an eligible Century-sponsored index trial. This is an observational study, and the elements of the study design allow for important follow-up for safety, survival, and the continued evaluation of any late adverse events (AEs) that may appear after treatment with such cellular products. Additionally, collection of persistence data from participants will support the identification of any lo... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/24/2025
Locations: Swedish Cancer Institute, Seattle, Washington
Conditions: Hematological Malignancy, Solid Tumor Malignancy
Testing the Addition of Total Ablative Therapy to Usual Systemic Therapy Treatment for Limited Metastatic Colorectal Cancer, The ERASur Study
Recruiting
This phase III trial compares total ablative therapy and usual systemic therapy to usual systemic therapy alone in treating patients with colorectal cancer that has spread to up to 4 body sites (limited metastatic). The usual approach for patients who are not participating in a study is treatment with intravenous (IV) (through a vein) and/or oral medications (systemic therapy) to help stop the cancer sites from getting larger and the spread of the cancer to additional body sites. Ablative means... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/24/2025
Locations: Valley Medical Center, Renton, Washington
Conditions: Metastatic Colorectal Adenocarcinoma, Stage IV Colorectal Cancer AJCC v8
Testing the Addition of Immunotherapy Before Surgery for Patients With Sarcomatoid Mesothelioma
Recruiting
This phase II trial evaluates the safety and effectiveness of giving immunotherapy (nivolumab and ipilimumab) before surgery for controlling disease in patients with stage I-IIIa sarcomatoid mesothelioma. Immunotherapy with monoclonal antibodies, such as nivolumab and ipilimumab, may help the body's immune system attack the cancer, and may interfere with the ability of tumor cells to grow and spread. Giving immunotherapy before surgery may be more effective at controlling disease in patients wit... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/24/2025
Locations: Providence Regional Cancer System-Aberdeen, Aberdeen, Washington
Conditions: Pleural Biphasic Mesothelioma, Pleural Sarcomatoid Mesothelioma
Testing the Addition of an Anti-Cancer Drug, Irinotecan, to the Standard Chemotherapy Treatment (FOLFOX) After Long-Course Radiation Therapy for Advanced-Stage Rectal Cancers to Improve the Rate of Complete Response and Long-Term Rates of Organ Preservation
Recruiting
This phase II trial compares the effect of irinotecan versus oxaliplatin after long-course chemoradiation in patients with stage II-III rectal cancer. Combination chemotherapy drugs, such as FOLFIRINOX (fluorouracil, irinotecan, leucovorin, and oxaliplatin), FOLFOX (leucovorin, fluorouracil, oxaliplatin, and irinotecan ), and CAPOX (capecitabin and oxaliplatin) work in different ways to stop the growth of tumor cells, either by killing the cells, by stopping them from dividing, or by stopping th... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/24/2025
Locations: Providence Regional Cancer System-Aberdeen, Aberdeen, Washington
Conditions: Locally Advanced Rectal Carcinoma, Stage II Rectal Cancer AJCC v8, Stage III Rectal Cancer AJCC v8
Study of RYZ101 Compared With SOC in Pts w Inoperable SSTR+ Well-differentiated GEP-NET That Has Progressed Following 177Lu-SSA Therapy
Recruiting
This study aims to determine the safety, pharmacokinetics (PK) and recommended Phase 3 dose (RP3D) of RYZ101 in Part 1, and the safety, efficacy, and PK of RYZ101 compared with investigator-selected standard of care (SoC) therapy in Part 2 in subjects with inoperable, advanced, well-differentiated, somatostatin receptor expressing (SSTR+) gastroenteropancreatic neuroendocrine tumors (GEP-NETs) that have progressed following treatment with Lutetium 177-labelled somatostatin analogue (177Lu-SSA) t... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/24/2025
Locations: Research Facility, Seattle, Washington
Conditions: GEP-NET, Gastroenteropancreatic Neuroendocrine Tumor, Gastroenteropancreatic Neuroendocrine Tumor Disease, Neuroendocrine Tumors, Carcinoid, Carcinoid Tumor, Pancreatic NET
A Donanemab (LY3002813) Study in Participants With Preclinical Alzheimer's Disease (TRAILBLAZER-ALZ 3)
Recruiting
The main purpose of this study is to evaluate the safety and efficacy of donanemab in participants with preclinical Alzheimer's Disease (AD). Approximately 800 additional participants will be enrolled in a 12-month addendum to assess safety of a different titration regimen.
Gender:
ALL
Ages:
Between 65 years and 80 years
Trial Updated:
06/24/2025
Locations: Northwest Clinical Research Center, Bellevue, Washington
Conditions: Alzheimer Disease
Olanzapine Versus Megestrol Acetate for the Treatment of Loss of Appetite Among Advanced Cancer Patients
Recruiting
This phase III trial compares the effects of olanzapine versus megestrol acetate in treating loss of appetite in patients with cancer that has spread to other places in the body (advanced). Olanzapine may stimulate and increase appetite. This study aims to find out if olanzapine is better than the usual approach (megestrol acetate) for stimulating appetite and preventing weight loss.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/24/2025
Locations: Valley Medical Center, Renton, Washington
Conditions: Advanced Malignant Solid Neoplasm, Anorexia, Hematopoietic and Lymphoid Cell Neoplasm
