There are currently 1249 clinical trials in Seattle, Washington looking for participants to engage in research studies. Trials are conducted at various facilities, including University of Washington, Seattle Children's Hospital, Fred Hutchinson Cancer Research Center and University of Washington Medical Center. Whether you're a healthy volunteer looking to participate in paid medical research or seeking trials related to a specific condition, the city provides a diverse range of opportunities near you.
A Study to Customize Ibrutinib Treatment Regimens for Participants With Previously Untreated Chronic Lymphocytic Leukemia
Recruiting
The purpose of this study is to evaluate the efficacy and safety of ibrutinib + venetoclax (I+V) and ibrutinib monotherapy regimens in which dosing of ibrutinib is either proactively reduced or reactively modified in response to adverse events (AEs).
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/15/2025
Locations: VA Puget Sound Healthcare System, Seattle, Washington
Conditions: Leukemia, Lymphocytic, Chronic, B-Cell, Small Lymphocytic Lymphoma
Trauma Resuscitation With Low-Titer Group O Whole Blood or Products
Recruiting
The goal of this clinical trial is to compare the effectiveness of unseparated whole blood (referred to as Low-Titer Group O Whole Blood) and the separate components of whole blood (including red cells, plasma, platelets, and cryoprecipitate) in critically injured patients who require large-volume blood transfusions.
Gender:
ALL
Ages:
15 years and above
Trial Updated:
08/15/2025
Locations: Harborview Medical Center, Seattle, Washington
Conditions: Wounds and Injuries, Shock, Hemorrhagic
Rinatabart Sesutecan (Rina-S, PRO1184, GEN1184) for Advanced Solid Tumors (GCT1184-01/ PRO1184-001)
Recruiting
This study will test the safety, including side effects, and determine the characteristics of a drug called Rina-S in participants with solid tumors. Participants will have solid tumor cancer that has spread through the body (metastatic) or cannot be removed with surgery (unresectable).
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/15/2025
Locations: Swedish Cancer Institute, Seattle, Washington
Conditions: Primary Peritoneal Carcinoma, Fallopian Tube Cancer, Endometrial Cancer, Non-small Cell Lung Cancer, Mesothelioma, Triple Negative Breast Cancer, High Grade Epithelial Ovarian Cancer, Breast Adenocarcinoma, Hormone Receptor-positive/Her2 Negative Breast Cancer, Platinum Sensitive Ovarian Cancer (PSOC), High Grade Serous Ovarian Cancer, Epidermal Growth Factor Receptor (EGFR)-Mutated Non-Small Cell Lung Cancer (NSCLC), Platinum-resistant Ovarian Cancer (PROC), Primary Refractory Ovarian Cancer, Uterine Cancer
Testing the Role of FDG-PET/CT to Predict Response to Therapy Prior to Surgery for HER2-positive Breast Cancer, The DIRECT Trial
Recruiting
This phase II trial tests how well an imaging procedure called fludeoxyglucose F-18 (FDG) positron emission tomography/computed tomography (PET/CT) works in predicting response to standard of care chemotherapy prior to surgery in patients with HER2-positive stage IIa-IIIc breast cancer. FDG is a radioactive tracer that is given in a vein before PET/CT imaging and helps to identify areas of active cancer. PET and CT are imaging techniques that make detailed, computerized pictures of areas inside... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/15/2025
Locations: FHCC South Lake Union, Seattle, Washington +2 locations
Conditions: Anatomic Stage II Breast Cancer AJCC v8, Anatomic Stage III Breast Cancer AJCC v8, HER2-Positive Breast Carcinoma, Invasive Breast Carcinoma
A Study to Test the Addition of the Drug Cabozantinib to Chemotherapy in Patients With Newly Diagnosed Osteosarcoma
Recruiting
This phase II/III trial tests the safety, side effects, and best dose of the drug cabozantinib in combination with standard chemotherapy, and to compare the effect of adding cabozantinib to standard chemotherapy alone in treating patients with newly diagnosed osteosarcoma. Cabozantinib is in a class of medications called kinase inhibitors which block protein signals affecting new blood vessel formation and the ability to activate growth signaling pathways. This may help slow the growth of tumor... Read More
Gender:
ALL
Ages:
40 years and below
Trial Updated:
08/15/2025
Locations: Seattle Children's Hospital, Seattle, Washington
Conditions: Localized Osteosarcoma, Metastatic Osteosarcoma, High Grade Osteosarcoma, Secondary Osteosarcoma
Testing the Use of Combination Therapy in Adult Patients With Newly Diagnosed Multiple Myeloma, the EQUATE Trial
Recruiting
This phase III trial compares the combination of four drugs (daratumumab, bortezomib, lenalidomide and dexamethasone) to the use of a three drug combination (daratumumab, lenalidomide and dexamethasone). Bortezomib may stop the growth of cancer cells by blocking some of the enzymes needed for cell growth. Chemotherapy drugs, such as lenalidomide, work in different ways to stop the growth of cancer cells, either by killing the cells, by stopping them from dividing, or by stopping them from spread... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/15/2025
Locations: Pacific Gynecology Specialists, Seattle, Washington +3 locations
Conditions: Plasma Cell Myeloma, RISS Stage I Plasma Cell Myeloma, RISS Stage II Plasma Cell Myeloma
A Study Comparing Oral Buprenorphine and Injectable Buprenorphine for the Treatment of Opioid Use Disorder
Recruiting
VA-BRAVE will determine whether a 28-day long-acting injectable sub-cutaneous (in the belly area) formulation of buprenorphine at a target dose of 300mg is superior in retaining Veterans in opioid treatment and in sustaining opioid abstinence compared to the daily sublingual (under the tongue) buprenorphine formulation at a target dose of 16-32 mg (standard of care). This is an open-label, randomized, controlled trial including 952 Veterans with opioid use disorder (OUD) recruited over 7 years a... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/15/2025
Locations: VA Puget Sound Health Care System Seattle Division, Seattle, WA, Seattle, Washington
Conditions: Opioid Use Disorder
Fontan Udenafil Exercise Longitudinal Assessment Trial - 2
Recruiting
This study will evaluate the clinical efficacy and safety of udenafil, an orally administered, potent and selective inhibitor of PDE5, versus placebo for the treatment of adolescent who have had the Fontan procedure.
Gender:
ALL
Ages:
Between 12 years and 18 years
Trial Updated:
08/15/2025
Locations: Seattle Children's Hospital, Seattle, Washington
Conditions: Single Ventricle Heart Disease
Venetoclax in Children With Relapsed Acute Myeloid Leukemia (AML)
Recruiting
A study to evaluate if the randomized addition of venetoclax to a chemotherapy backbone (fludarabine/cytarabine/gemtuzumab ozogamicin \[GO\]) improves survival of children/adolescents/young adults with acute myeloid leukemia (AML) in 1st relapse who are unable to receive additional anthracyclines, or in 2nd relapse.
Gender:
ALL
Ages:
Between 29 days and 21 years
Trial Updated:
08/15/2025
Locations: Seattle Children's Hospital, Seattle, Washington
Conditions: Acute Myeloid Leukemia
Testing the Role of DNA Released From Tumor Cells Into the Blood in Guiding the Use of Immunotherapy After Surgical Removal of the Bladder, Kidney, Ureter, and Urethra for Urothelial Cancer Treatment, MODERN Study
Recruiting
This phase II/III trial examines whether patients who have undergone surgical removal of bladder, kidney, ureter or urethra, but require an additional treatment called immunotherapy to help prevent their urinary tract (urothelial) cancer from coming back, can be identified by a blood test. Many types of tumors tend to lose cells or release different types of cellular products including their DNA which is referred to as circulating tumor DNA (ctDNA) into the bloodstream before changes can be seen... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/15/2025
Locations: Virginia Mason Medical Center, Seattle, Washington
Conditions: Muscle Invasive Bladder Urothelial Carcinoma, Stage II Bladder Urothelial Carcinoma AJCC v6 and v7, Stage III Bladder Urothelial Carcinoma AJCC v6 and v7, Stage IV Bladder Urothelial Carcinoma AJCC v7, Muscle Invasive Renal Pelvis Urothelial Carcinoma, Muscle Invasive Ureter Urothelial Carcinoma, Muscle Invasive Urethral Urothelial Carcinoma
A Phase 3 Trial of MM120 for Generalized Anxiety Disorder (Voyage)
Recruiting
A Phase 3 Double-blind, Placebo-controlled Study (Part A) with an Open-label Extension (Part B) Evaluating MM120 Compared to Placebo in Generalized Anxiety Disorder - Voyage
Gender:
ALL
Ages:
Between 18 years and 74 years
Trial Updated:
08/15/2025
Locations: Seattle Neuropsychiatric Treatment Center, Seattle, Washington
Conditions: Generalized Anxiety Disorder
VE303 for Prevention of Recurrent Clostridioides Difficile Infection
Recruiting
The overall objective of the RESTORATiVE303 study is to evaluate the safety and the Clostridioides difficile infection (CDI) recurrence rate at Week 8 in participants who receive a 14-day course of VE303 or matching placebo. The objectives and endpoints are identical for Stage 1 (recurrent CDI) and Stage 2 (high-risk primary CDI).
Gender:
ALL
Ages:
12 years and above
Trial Updated:
08/15/2025
Locations: Seattle Infectious Disease Clinic, Seattle, Washington +1 locations
Conditions: Clostridium Difficile, Clostridium Difficile Infections, Clostridium Difficile Infection Recurrence, Clostridioides Difficile Infection, Clostridioides Difficile Infection Recurrence, CDI, C. Diff Infection, Recurrent Clostridium Difficile Infection, C.Difficile Diarrhea, Diarrhea Infectious