Paid Clinical Trials in Seattle, WA

As of June 2026, 1,369 paid clinical trials are recruiting in Seattle, Washington. Compensation typically covers time, travel, and study visits, with stipends ranging from modest amounts for short outpatient studies to several thousand dollars for long or inpatient protocols.

Both patients with specific conditions and healthy volunteers can qualify. Most trials offer free study-related medical care alongside compensation.

Recruiting trial data synced daily from ClinicalTrials.gov. Last sync: June 12, 2026.

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1,369 clinical trials

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Study to Assess Safety and Tolerability of OPN-6602 in Subjects With Relapsed and/or Refractory Multiple Myeloma

for Relapsed Multiple Myeloma

12 locations incl. Gilbert

Sponsor: Opna Bio LLC

Sex: All·Age: 18+

Code: NCT06433947·Phase 1·Recruiting

Apply to this trial

Study of Targeted Therapy vs. Chemotherapy in Patients With Thyroid Cancer

for Refractory Differentiated Thyroid Gland Carcinoma

301 locations incl. Anchorage

Sponsor: ECOG-ACRIN Cancer Research Group

Sex: All·Age: 18+

Code: NCT06475989·Phase 3·Recruiting

Apply to this trial

A Clinical Trial of Combination HIV-Specific Broadly Neutralizing Monoclonal Antibodies Combined With ART Initiation During Acute HIV Infection to Induce HIV Remission

for Acute HIV Infection

32 locations incl. Birmingham

Sponsor: National Institute of Allergy and Infectious Diseases (NIAID)

Sex: All·Age: 18 - 70

Code: NCT05719441·Phase 2·Recruiting

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Study of Safety and Efficacy of RGT-61159 in Adults With Relapsed/Refractory Adenoid Cystic Carcinoma (ACC) or Colorectal Carcinoma (CRC)

for Adenoid Cystic Carcinoma

8 locations incl. Boston

Sponsor: Rgenta Therapeutics Inc

Sex: All·Age: 18+

Code: NCT06462183·Phase 1·Recruiting

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SMP-3124LP in Adults With Advanced Solid Tumors

for Solid Tumor

8 locations incl. Los Angeles

Sponsor: Sumitomo Pharma America, Inc.

Sex: All·Age: 18+

Code: NCT06526819·Phase 1, Phase 2·Recruiting

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EFS of the DUO System for Tricuspid Regurgitation

for Tricuspid Regurgitation

12 locations incl. Phoenix

Sponsor: CroiValve Limited

Sex: All·Age: 18+

Code: NCT05913908·Recruiting

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A Study Comparing the Efficacy and Safety of Zanidatamab to Trastuzumab, Each in Combination With Physician's Choice Chemotherapy, for the Treatment of Participants With Metastatic HER2-positive Breast Cancer

for Metastatic HER2-positive Breast Cancer

48 locations incl. Phoenix

Sponsor: Jazz Pharmaceuticals

Sex: All·Age: 18+

Code: NCT06435429·Phase 3·Recruiting

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Targeted Treatment for Advanced Non-Small Cell Lung Cancer That Has a MET Exon 14 Skipping Gene Change (An Expanded Lung-MAP Treatment Trial)

for Recurrent Lung Non-Small Cell Carcinoma

266 locations incl. Daphne

Sponsor: SWOG Cancer Research Network

Sex: All·Age: 18 Minutes+

Code: NCT06031688·Phase 2·Recruiting

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A Study to Assess Growth in Children With Idiopathic Short Stature

for Idiopathic Short Stature

40 locations incl. Phoenix

Sponsor: BioMarin Pharmaceutical

Sex: All·Age: 2 - 16

Code: NCT06309979·Recruiting

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Non-invasive Electrical Spinal Cord Stimulation To Restore Upper Extremity Function in Multiple Sclerosis

for Multiple Sclerosis

1 location in Seattle

Sponsor: University of Washington

Sex: All·Age: 21 - 70

Code: NCT06552611·Phase 1·Recruiting

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Innoventric Trillium™ Stent Graft Early Feasibility Study (EFS)

for Tricuspid Regurgitation

9 locations incl. Thousand Oaks

Sponsor: Innoventric LTD

Sex: All·Age: 18 - 85

Code: NCT06212193·Recruiting

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Targeted Pediatric High-Grade Glioma Therapy

for High Grade Glioma

11 locations incl. Aurora

Sponsor: Nationwide Children's Hospital

Sex: All·Age: 12 Months - 39

Code: NCT05839379·Recruiting

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Multi-Arm Multi-Stage Adaptive Platform Trial (APT) for the Acute Treatment of Traumatic Brain Injury

for Traumatic Brain Injury

18 locations incl. San Francisco

Sponsor: University of California, San Francisco

Sex: All·Age: 18 - 65

Code: NCT05826912·Phase 2·Enrolling By Invitation

A Longitudinal Multi-Omic Biomarker Profiling Study of Patients With Head & Neck Squamous Cell Carcinoma (HNSCC)

for Head and Neck Squamous Cell Carcinoma

29 locations incl. Duarte

Sponsor: Tempus AI

Sex: All·Age: 18+

Code: NCT06163534·Recruiting

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VTP-1000 in Adults With Celiac Disease

for Celiac Disease

16 locations incl. Los Angeles

Sponsor: Barinthus Biotherapeutics

Sex: All·Age: 18 - 70

Code: NCT06310291·EARLY_Phase 1·Recruiting

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A Phase 1, Dose-escalation Study of [225Ac]-FPI-2068 in Adult Patients With Advanced Solid Tumours

for Advanced Solid Tumor

11 locations incl. Irvine

Sponsor: AstraZeneca

Sex: All·Age: 18 - 130

Code: NCT06147037·Phase 1·Recruiting

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Hemophilia A Research Program

for Hemophilia A

1 location in Seattle

Sponsor: University of Washington

Sex: All·Age: All ages·Accepts healthy volunteers

Code: NCT07414511·Recruiting

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Action Towards Health Equity and Improved Air Quality in the Duwamish Valley: A Multilevel Asthma Intervention

for Asthma in Children

1 location in Seattle

Sponsor: University of Washington

Sex: All·Age: 6 - 17

Code: NCT06552013·Recruiting

Apply to this trial

Functional Improvement in OSA and COPD With a Telehealth LifeStyle and Exercise Intervention

for Chronic Obstructive Pulmonary Disease

5 locations incl. Boise

Sponsor: Seattle Institute for Biomedical and Clinical Research

Sex: All·Age: 18+

Code: NCT06390345·Recruiting

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Testing the Impact of Thrive App Versions on Alcohol Use and Posttraumatic Stress After Recent Sexual Assault

for Posttraumatic Stress Symptom

1 location in Seattle

Sponsor: University of Washington

Sex: All·Age: 18+

Code: NCT06444295·Recruiting

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Selpercatinib Pre-RAI in Patients With RET Fusion Thyroid Cancer (RAISE)

for Differentiated Thyroid Cancer

4 locations incl. Philadelphia

Sponsor: Children's Hospital of Philadelphia

Sex: All·Age: 2 - 25

Code: NCT06458036·Phase 2·Recruiting

Apply to this trial

Early BOTOX After Spinal Cord Injury

for Spinal Cord Injuries

1 location in Seattle

Sponsor: University of Washington

Sex: All·Age: 18 - 65

Code: NCT06793683·EARLY_Phase 1·Enrolling By Invitation

Study of Enhanced Programming Stimulation with the Enterra® Therapy System

for Gastroparesis

6 locations incl. Tampa

Sponsor: Enterra Medical, Inc.

Sex: All·Age: 18 - 70

Code: NCT06560307·Recruiting

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ASSESS ALL ALS Study

for Amyotrophic Lateral Sclerosis

31 locations incl. Birmingham

Sponsor: St. Joseph's Hospital and Medical Center, Phoenix

Sex: All·Age: 18+·Accepts healthy volunteers

Code: NCT06578195·Recruiting

Apply to this trial

PREVENT ALL ALS Study

for Amyotrophic Lateral Sclerosis

31 locations incl. Birmingham

Sponsor: St. Joseph's Hospital and Medical Center, Phoenix

Sex: All·Age: 18+·Accepts healthy volunteers

Code: NCT06581861·Recruiting

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Cord Blood Transplant, Cyclophosphamide, Fludarabine, and Total-Body Irradiation in Treating Patients With High-Risk Hematologic Diseases

for Acute Leukemia of Ambiguous Lineage

1 location in Seattle

Sponsor: Fred Hutchinson Cancer Center

Sex: All·Age: 6 Months - 65

Code: NCT06013423·Phase 2·Recruiting

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TRIcvalve biCAVal Valve System for Severe Tricuspid Regurgitation (TRICAV-I)

for Tricuspid Regurgitation

36 locations incl. Phoenix

Sponsor: P+F Products + Features USA Inc.

Sex: All·Age: 18+

Code: NCT06137807·Recruiting

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Functional Imaging in Prediction of Response to Abemaciclib for Advanced Hormone Receptor-Positive, HER2-Negative Breast Cancer

for Anatomic Stage III Breast Cancer AJCC v8

2 locations incl. St Louis

Sponsor: University of Washington

Sex: All·Age: 18+

Code: NCT06179303·Phase 2·Recruiting

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Chemotherapy Combined With Immunotherapy Versus Immunotherapy Alone for Older Adults With Stage IIIB-IV Lung Cancer, The ACHIEVE Trial

for Advanced Lung Non-Small Cell Carcinoma

318 locations incl. Fayetteville

Sponsor: National Cancer Institute (NCI)

Sex: All·Age: 70+

Code: NCT06096844·Phase 3·Recruiting

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PEP-CMV Vaccine Targeting CMV Antigen to Treat Newly Diagnosed Pediatric HGG and DIPG and Recurrent Medulloblastoma

for High Grade Glioma

13 locations incl. Aurora

Sponsor: Nationwide Children's Hospital

Sex: All·Age: 3 - 39

Code: NCT05096481·Phase 2·Recruiting

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A Study of NVL-330 in Patients With Advanced or Metastatic HER2-altered NSCLC (HEROEX-1)

for Locally Advanced Solid Tumor

17 locations incl. Irvine

Sponsor: Nuvalent Inc.

Sex: All·Age: 18+

Code: NCT06521554·Phase 1·Recruiting

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Testing the Addition of BMS-986016 (Relatlimab) to the Usual Immunotherapy After Initial Treatment for Recurrent or Metastatic Nasopharyngeal Cancer

for Metastatic Nasopharyngeal Carcinoma

Drug: Relatlimab

83 locations incl. Dublin

Sponsor: National Cancer Institute (NCI)

Sex: All·Age: 18+

Code: NCT06029270·Phase 2·Recruiting

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A Study Evaluating Atezolizumab, With or Without Bevacizumab, in Participants With Unresectable Hepatocellular Carcinoma and Child-pugh B7 and B8 Cirrhosis

for Hepatocellular Carcinoma

Drug: Atezolizumab

60 locations incl. Tucson

Sponsor: Genentech, Inc.

Sex: All·Age: 18+

Code: NCT06096779·Phase 2·Recruiting

Apply to this trial

Evaluating Treatments for Suicidal Veterans With PTSD

for Self-directed Violence

4 locations incl. Minneapolis

Sponsor: VA Office of Research and Development

Sex: All·Age: 18+

Code: NCT05974631·Recruiting

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A Study of the Oral EGFR Inhibitor PLB1004 in Non-Small Cell Lung Cancer

for Non-Small Cell Lung Cancer

7 locations incl. Sacramento

Sponsor: Avistone Biotechnology Co., Ltd.

Sex: All·Age: 18+

Code: NCT06046495·Phase 1·Recruiting

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TGRX-678 US Phase I for Subjects with Refractory or Advanced Chronic Myelogenous Leukemia

for Chronic Myelogenous Leukemia

2 locations incl. Houston

Sponsor: Shenzhen TargetRx Co., Ltd.

Sex: All·Age: 18+

Code: NCT06088888·Phase 1·Recruiting

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A Study to Evaluate the Safety, Tolerability, Pharmacokinetics and Clinical Activity of GSK5733584 for Injection in Participants With Advanced Solid Tumors

for Solid Tumors

18 locations incl. Birmingham

Sponsor: GlaxoSmithKline

Sex: All·Age: 18+

Code: NCT06431594·Phase 1·Recruiting

Apply to this trial

Parasitic Ulcer Treatment Trial

for Acanthamoeba Keratitis

13 locations incl. San Francisco

Sponsor: Jeremy Keenan, MD, MPH

Sex: All·Age: 8+

Code: NCT06213649·Phase 3·Recruiting

Apply to this trial

High-Intensity Exercise and High-Fiber Diet for Immunotherapy Outcomes in Melanoma Patients: The DUO Trial

for Melanoma (Skin)

2 locations incl. Boston

Sponsor: Fred Hutchinson Cancer Center

Sex: All·Age: 18+

Code: NCT06298734·Recruiting

Apply to this trial

Dichoptic Treatment for Amblyopia in Children 4 to 7 Years of Age

for Amblyopia

73 locations incl. Birmingham

Sponsor: Jaeb Center for Health Research

Sex: All·Age: 4 - 7

Code: NCT06380517·Phase 3·Recruiting

Apply to this trial