Independent directory Public ClinicalTrials.gov records United States
Location Directory

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 Oct 31, 2026, 10:37 AM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official matching trials
11398
Shown on this page
12
Local exact-city summaries
2394
Based on exact city/state matches in the local index.
Local exact-city recruiting
1252
Live official results below use the broader ClinicalTrials.gov location search.

These results were retrieved from the live ClinicalTrials.gov registry. Filters and sort order apply to this result list.

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These controls apply only within Seattle, Washington. Default order is Recently updated. Use recruitment status if you want to focus on actively recruiting studies in this location.

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Showing 1–12 of 11,398 matching trials in Seattle, WA.
Live ClinicalTrials.gov results.
The summary panels count exact city/state matches in the stored directory for Seattle, WA. The trial list uses ClinicalTrials.gov location matching when live results are available, which can differ from those local counts. No distance radius is applied; check each official record for its listed facilities. During an upstream outage, the list may use the clearly labeled local fallback.

Institutions in Seattle

Campus pages list official records that name the campus as a study site. Listed in directory order, not ranked.

Live official records

Open in full search
Conditions
Relapsing Multiple Sclerosis (RMS)
Interventions
Ublituximab
Biological
Lead sponsor
TG Therapeutics, Inc.
Industry
Eligibility
18 Years and older
Enrollment
1,100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2032
U.S. locations
19
States / cities
Pasadena, California • Denver, Colorado • Miami, Florida + 16 more
Conditions
Heart Failure, Left Ventricular Systolic Dysfunction
Interventions
Vericiguat tablet, Vericiguat suspension, Placebo tablet, Placebo suspension
Drug
Lead sponsor
Merck Sharp & Dohme LLC
Industry
Eligibility
29 Days to 17 Years
Enrollment
342 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2032
U.S. locations
20
States / cities
Los Angeles, California • Palo Alto, California • San Bernardino, California + 17 more
Conditions
Immune Thrombocytopenia
Interventions
INCA000585
Drug
Lead sponsor
Incyte Corporation
Industry
Eligibility
18 Years and older
Enrollment
56 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2028
U.S. locations
9
States / cities
Glendale, Arizona • Los Angeles, California • Lone Tree, Colorado + 6 more
Conditions
Non-small Cell Lung Cancer
Interventions
Intismeran, Pembrolizumab coformulated with berahyaluronidase alfa, Placebo
Biological · Other
Lead sponsor
Merck Sharp & Dohme LLC
Industry
Eligibility
18 Years and older
Enrollment
876 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2038
U.S. locations
26
States / cities
Sacramento, California • Aurora, Colorado • New Haven, Connecticut + 22 more
Conditions
Diffuse Large B-Cell Lymphoma, Grade 3b Follicular Lymphoma, High Grade B-Cell Lymphoma
Interventions
Bone Marrow Biopsy, Cyclophosphamide, Doxorubicin, Prednisone, Retifanlimab, Rituximab and Hyaluronidase Human, Tafasitamab, Vincristine, Bone Marrow Aspiration, Multigated Acquisition Scan, Fludeoxyglucose F-18, Positron Emission Tomography, Computed Tomography, Biospecimen Collection, Polatuzumab Vedotin
Procedure · Drug · Biological + 1 more
Lead sponsor
University of Washington
Other
Eligibility
18 Years and older
Enrollment
33 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2027
U.S. locations
1
States / cities
Seattle, Washington
Conditions
Persistent Infection, Cystic Fibrosis
Interventions
CMTX-101, Placebo
Drug
Lead sponsor
Clarametyx Biosciences, Inc.
Industry
Eligibility
18 Years and older
Enrollment
43 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
23
States / cities
Birmingham, Alabama • Palo Alto, California • San Franciso, California + 20 more
Conditions
Immune Thrombocytopenic Purpura (ITP)
Interventions
Mezagitamab
Drug
Lead sponsor
Takeda
Industry
Eligibility
18 Years and older
Enrollment
150 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2029
U.S. locations
25
States / cities
Hot Springs, Arkansas • Los Angeles, California • San Diego, California + 21 more
Conditions
Acute Myeloid Leukemia, Acute Myeloid Leukemia Arising From Previous Myelodysplastic/Myeloproliferative Neoplasm, Acute Myeloid Leukemia Post Cytotoxic Therapy, Acute Myeloid Leukemia, Myelodysplasia-Related, Myelodysplastic Syndrome
Interventions
Allogeneic Hematopoietic Stem Cell Transplantation, Azacitidine, Best Practice, Biopsy Procedure, Biospecimen Collection, Bone Marrow Aspiration, Bone Marrow Biopsy, Busulfan, Chest Radiography, Computed Tomography, Cytarabine, Daunorubicin, Daunorubicin Hydrochloride, Decitabine and Cedazuridine, Echocardiography Test, Emavusertib, Enasidenib, Epoetin Alfa, Fludarabine, Gemtuzumab Ozogamicin, Gilteritinib, Liposome-encapsulated Daunorubicin-Cytarabine, Luspatercept, Melphalan, Multigated Acquisition Scan, Mutation Carrier Screening, Olutasidenib, Placebo Administration, Positron Emission Tomography, Quizartinib, Total-Body Irradiation, Venetoclax
Procedure · Drug · Other + 2 more
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years and older
Enrollment
2,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2029
U.S. locations
347
States / cities
Birmingham, Alabama • Phoenix, Arizona • Tucson, Arizona + 265 more
Conditions
Aortic Arch Dissection, Aortic Arch Aneurysm
Interventions
GORE® TAG® Thoracic Branch Endoprosthesis
Device
Lead sponsor
W.L.Gore & Associates
Industry
Eligibility
18 Years and older
Enrollment
125 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2036
U.S. locations
24
States / cities
Scottsdale, Arizona • Los Angeles, California • Palo Alto, California + 19 more
Conditions
Chronic Lymphocytic Leukemia, Mantle Cell Lymphoma, Recurrent Chronic Lymphocytic Leukemia, Recurrent Mantle Cell Lymphoma, Recurrent Small Lymphocytic Lymphoma, Refractory Chronic Lymphocytic Leukemia, Refractory Mantle Cell Lymphoma, Refractory Small Lymphocytic Lymphoma, Small Lymphocytic Lymphoma
Interventions
Biospecimen Collection, Bone Marrow Biopsy, Computed Tomography, Gastrointestinal Endoscopy, Rituximab, Sonrotoclax, Zanubrutinib
Procedure · Biological · Drug
Lead sponsor
Fred Hutchinson Cancer Center
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2032
U.S. locations
1
States / cities
Seattle, Washington
Conditions
Essential Thrombocythemia
Interventions
INCA033989, Best Available Treatment
Drug
Lead sponsor
Incyte Corporation
Industry
Eligibility
18 Years and older
Enrollment
426 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2030
U.S. locations
43
States / cities
Birmingham, Alabama • Gilbert, Arizona • Duarte, California + 36 more
Conditions
Recurrent Langerhans Cell Histiocytosis, Refractory Langerhans Cell Histiocytosis
Interventions
Biospecimen Collection, Bone Marrow Aspiration, Bone Marrow Biopsy, Computed Tomography, Echocardiography Test, FDG-Positron Emission Tomography and Computed Tomography Scan, Lumbar Puncture, Multigated Acquisition Scan, Tovorafenib
Procedure · Drug
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
180 Days to 22 Years
Enrollment
48 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2028
U.S. locations
108
States / cities
Birmingham, Alabama • Little Rock, Arkansas • Downey, California + 85 more