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Clinical trials in Seattle, Washington

This page shows live ClinicalTrials.gov search results for Seattle, Washington, with direct links to official study records plus on-page filtering and sorting for broad location searches.

ClinicalTrials.gov public records Last synced Nov 15, 2026, 1:20 PM EST

All trial information on this site comes from the official ClinicalTrials.gov public API (clinicaltrials.gov/api/v2), run by the U.S. National Library of Medicine. We only display that public information; we do not add opinions, endorsements, or any other intent. Always review the official ClinicalTrials.gov record for the latest information.

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Seattle, WA
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Showing 793–804 of 11,419 matching trials in Seattle, WA.
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Institutions in Seattle

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Not yet recruiting Not applicable Interventional Accepts healthy volunteers

A Smartphone Application (QuitBot) for the Improvement of Smoking Cessation Among American Indians and Alaska Natives, NAITIVE Trial

NCT06697496
View directory record Official record
Conditions
Cigarette Smoking-Related Carcinoma
Interventions
QuitBot Smoking Cessation Chatbot Program, QuitBot Smoking Cessation Text Messaging Program, Survey Administration, Interview, Carbon Monoxide Measurement
Device · Other · Procedure
Lead sponsor
Fred Hutchinson Cancer Center
Other
Eligibility
18 Years and older
Enrollment
772 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2030
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Oct 20, 2026 · Synced Nov 15, 2026, 1:20 PM EST
Active, not recruiting Not applicable Interventional

Autus Valve Pivotal Study

NCT05006404
View directory record Official record
Conditions
Congenital Heart Disease
Interventions
Pulmonary Valve Replacement Surgery
Device
Lead sponsor
Edwards Lifesciences
Industry
Eligibility
18 Months to 16 Years
Enrollment
62 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2036
U.S. locations
12
States / cities
Los Angeles, California • Aurora, Colorado • Atlanta, Georgia + 9 more
Source: ClinicalTrials.gov public record
Updated Oct 20, 2026 · Synced Nov 15, 2026, 1:20 PM EST
Recruiting Phase 2Phase 3 Interventional

A Study Investigating Oral Ozanimod (RPC1063) in Pediatric Participants With Moderate to Severe Active Ulcerative Colitis

NCT05076175
View directory record Official record
Conditions
Colitis, Ulcerative
Interventions
Ozanimod
Drug
Lead sponsor
Bristol-Myers Squibb
Industry
Eligibility
2 Years to 17 Years
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2032
U.S. locations
36
States / cities
Phoenix, Arizona • Tucson, Arizona • Garden Grove, California + 30 more
Source: ClinicalTrials.gov public record
Updated Oct 20, 2026 · Synced Nov 15, 2026, 1:20 PM EST
Recruiting Phase 2 Interventional

[18F]FTT Positron Emission Tomography/Computed Tomography to Predict Treatment Response in Patients Scheduled to Receive Gemcitabine, Cisplatin, and Durvalumab for Newly Diagnosed Cholangiocarcinoma

NCT07673341
View directory record Official record
Conditions
Cholangiocarcinoma
Interventions
Computed Tomography, Fluorine F 18 Fluorthanatrace, Magnetic Resonance Imaging, Positron Emission Tomography
Procedure · Radiation
Lead sponsor
University of Washington
Other
Eligibility
18 Years and older
Enrollment
22 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Oct 20, 2026 · Synced Nov 15, 2026, 1:20 PM EST
Recruiting No phase listed Observational

Long-Term Follow-Up of Patients Who Have Participated in Children's Oncology Group Studies

NCT00736749
View directory record Official record
Conditions
Hematopoietic Cell Transplantation Recipient, Leukemia, Solid Tumor
Interventions
Assessment of Therapy Complications, Questionnaire Administration
Procedure · Other
Lead sponsor
Children's Oncology Group
Network
Eligibility
Not listed
Enrollment
25,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2008
U.S. locations
163
States / cities
Birmingham, Alabama • Mobile, Alabama • Phoenix, Arizona + 124 more
Source: ClinicalTrials.gov public record
Updated Oct 20, 2026 · Synced Nov 15, 2026, 1:20 PM EST
Completed Phase 3 Interventional

Long-term Safety and Efficacy of Nemolizumab With Moderate-to-severe Atopic Dermatitis

NCT03989206
View directory record Official record
Conditions
Moderate-to-Severe Atopic Dermatitis
Interventions
Nemolizumab
Drug
Lead sponsor
Galderma R&D
Industry
Eligibility
12 Years and older
Enrollment
1,935 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2026
U.S. locations
136
States / cities
Birmingham, Alabama • Guntersville, Alabama • Scottsdale, Arizona + 104 more
Source: ClinicalTrials.gov public record
Updated Oct 20, 2026 · Synced Nov 15, 2026, 1:20 PM EST
Recruiting Phase 3 Interventional

Morphine or Ketamine for Analgesia

NCT06835504
View directory record Official record
Conditions
Abdominal Pain, Isolated Extremity Fracture, Pain, Pediatrics
Interventions
Ketamine hydrochloride, Morphine sulphate
Drug
Lead sponsor
Columbia University
Other
Eligibility
6 Years to 17 Years
Enrollment
1,010 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2030
U.S. locations
8
States / cities
Los Angeles, California • Sacramento, California • Wilmington, Delaware + 5 more
Source: ClinicalTrials.gov public record
Updated Oct 20, 2026 · Synced Nov 15, 2026, 1:20 PM EST
Recruiting Phase 1 Interventional

T Cell Receptor T Cells for Advanced KRAS G12V-mutant Non-small Cell Lung Cancer, Pancreas Cancer, Colon Cancer

NCT06043713
View directory record Official record
Conditions
Non-small Cell Lung Cancer, Pancreas Cancer, Colon Cancer
Interventions
Bendamustine, Biopsy, Biospecimen Collection, Computed Tomography, Cyclophosphamide, Echocardiography, Fludarabine, Leukapheresis, Magnetic Resonance Imaging, Multigated Acquisition Scan, Positron Emission Tomography, T-cell Receptor-engineered T-cells
Drug · Procedure · Biological
Lead sponsor
Fred Hutchinson Cancer Center
Other
Eligibility
18 Years and older
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2028
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Oct 20, 2026 · Synced Nov 15, 2026, 1:20 PM EST
Active, not recruiting Not applicable Interventional

Single-Sided Deafness and Asymmetric Hearing Loss

NCT04506853
View directory record Official record
Conditions
Hearing Loss, Unilateral, Hearing Loss, Sensorineural
Interventions
MED-EL Cochlear Implant System
Device
Lead sponsor
Med-El Corporation
Industry
Eligibility
5 Years and older
Enrollment
65 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2026
U.S. locations
4
States / cities
Iowa City, Iowa • New York, New York • Chapel Hill, North Carolina + 1 more
Source: ClinicalTrials.gov public record
Updated Oct 20, 2026 · Synced Nov 15, 2026, 1:20 PM EST
Recruiting No phase listed Observational

Product Surveillance Registry

NCT01524276
View directory record Official record
Conditions
Cardiac Rhythm Disorders, Urological Disorders, Neurological Disorders, Cardiovascular Disorders, Digestive Disorders, Intracranial Aneurysm, Mechanical Circulatory Support, Respiratory Therapy, Aortic, Peripheral Vascular and Venous Disorders, Minimally Invasive Surgical Procedures, Diagnostic Techniques and Procedures, Surgical Procedures, Operative, Renal Insufficiency, Neurovascular, Coronary Artery Disease, Ear, Nose and Throat Disorder
Interventions
Not listed
Lead sponsor
Medtronic
Industry
Eligibility
Not listed
Enrollment
100,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2040
U.S. locations
136
States / cities
Birmingham, Alabama • Huntsville, Alabama • Chandler, Arizona + 133 more
Source: ClinicalTrials.gov public record
Updated Oct 20, 2026 · Synced Nov 15, 2026, 1:20 PM EST
Active, not recruiting Phase 4 Interventional

Clinical, Imaging, and Endoscopic Outcomes of Children Newly Diagnosed With Crohn's Disease

NCT05781152
View directory record Official record
Conditions
Crohn Disease
Interventions
Anti-TNF therapy
Drug
Lead sponsor
Connecticut Children's Medical Center
Other
Eligibility
6 Years to 17 Years
Enrollment
1,270 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2029
U.S. locations
22
States / cities
Phoenix, Arizona • Los Angeles, California • San Diego, California + 19 more
Source: ClinicalTrials.gov public record
Updated Oct 20, 2026 · Synced Nov 15, 2026, 1:20 PM EST
Terminated Phase 3 Interventional Results available

Ganciclovir to Prevent Reactivation of Cytomegalovirus in Patients With Acute Respiratory Failure and Sepsis

NCT04706507
View directory record Official record
Conditions
Acute Respiratory Failure
Interventions
IV Ganciclovir, Normal saline
Drug
Lead sponsor
Fred Hutchinson Cancer Center
Other
Eligibility
18 Years to 85 Years
Enrollment
205 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2025
U.S. locations
20
States / cities
Denver, Colorado • Baltimore, Maryland • Boston, Massachusetts + 16 more
Source: ClinicalTrials.gov public record
Updated Oct 20, 2026 · Synced Nov 15, 2026, 1:20 PM EST