Paid Clinical Trials in Seattle, WA

As of September 2026, 1,284 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.

Seattle offers studies at sites including Seattle Children's Hospital for conditions such as Acute Myeloid Leukemia, Colorectal Cancer, Breast Cancer, Ovarian Cancer. 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: .

Trials by specialty in Seattle

Oncology· 602Blood cancer· 203GI oncology· 81Women's health· 75Neurology· 64Lung oncology· 57Brain disorders· 53Gynecologic oncology· 46Urology· 44Breast oncology· 41Endocrinology· 39Autoimmune disease· 33

Trials by drug in Seattle

Dexamethasone· 17Interview· 17Prednisone· 14Methotrexate· 12Folinic acid· 10Letrozole· 6SoC· 6Cyclosporine· 5Palbociclib· 5Prednisolone· 5Anastrozole· 3Cystoscopy· 3Semaglutide· 3Tamoxifen· 3
Filter results
Filter results
Recruitment status
Phase
Sex
Age

Newly added in Seattle

Posted to ClinicalTrials.gov within the last 60 days — these studies are just starting to recruit.

1,156 clinical trials

Get a weekly email when new trials open in Seattle, WA.

Top Research Study Locations in Seattle

Researchers run research studies in Seattle, WA at 25 active sites. The clinics below currently host the largest number of recruiting studies — each name is followed by the conditions they focus on most.

SiteSpecializes inActive trials
Seattle Children's HospitalDiffuse Intrinsic Pontine Glioma, Cystic Fibrosis, High Grade Glioma184
University of WashingtonAmyotrophic Lateral Sclerosis, Spinal Cord Injuries, Multiple Myeloma183
Fred Hutchinson Cancer CenterBreast Cancer, Acute Myeloid Leukemia, Colorectal Cancer141
Fred Hutch/University of Washington Cancer ConsortiumAcute Myeloid Leukemia, Hematopoietic and Lymphatic System Neoplasm, Stage IVB Prostate Cancer AJCC v8104
Swedish Medical Center-First HillAcute Myeloid Leukemia, Anatomic Stage II Breast Cancer AJCC v8, Malignant Solid Neoplasm66
University of Washington Medical CenterCystic Fibrosis, Heart Diseases, Heart Transplant50
University of Washington Medical Center - MontlakeProstate Adenocarcinoma, Acute Myeloid Leukemia, Anatomic Stage II Breast Cancer AJCC v839
Fred Hutchinson Cancer Research CenterChronic Lymphocytic Leukemia, Advanced Solid Tumor, Chronic Graft-versus-host-disease36
Swedish Cancer InstituteBreast Cancer, Endometrial Cancer, Chronic Lymphocytic Leukemia34
Swedish Medical CenterARDS, ARDS (Acute Respiratory Distress Syndrome), Acute Respiratory Distress Syndrome32
Virginia Mason Medical CenterBreast Cancer, Colorectal Cancer, Hearing Loss, Unilateral31
Swedish Medical Center-Ballard CampusMalignant Solid Neoplasm, Hematopoietic and Lymphoid Cell Neoplasm, Ovarian Carcinoma30
Swedish Medical Center-Cherry HillMalignant Solid Neoplasm, Hematopoietic and Lymphoid Cell Neoplasm, Ovarian Carcinoma29
Harborview Medical CenterSpinal Cord Injuries, Urothelial Carcinoma, Abdominal Aortic Aneurysms21
VA Puget Sound Health Care System Seattle Division, Seattle, WAObesity, Adult Growth Hormone Deficiency, Advanced Urothelial Carcinoma20
Seattle Children'sSuicidal Ideation, Acute Kidney Injury, Becker Muscular Dystrophy16
FHCC at Northwest HospitalAnatomic Stage II Breast Cancer AJCC v8, Anatomic Stage IIIA Breast Cancer AJCC v8, Anatomic Stage IIIB Breast Cancer AJCC v814
Fred Hutch Cancer CenterColorectal Cancer, Advanced Adenocarcinoma, Astrocytoma, Grade IV11
GSK Investigational SiteHIV Infections, Non-alcoholic Fatty Liver Disease, Gastrointestinal Neoplasms11
VA Puget Sound Health Care SystemParkinson's Disease, Barrett's Esophagus, Carcinoma, Non-Small-Cell Lung11
Benaroya Research InstituteType 1 Diabetes Mellitus, Acute Pancreatitis, T1D9
Seattle Children's Research InstituteADA SCID, Adolescent Behavior, Brain Concussion8
Seattle Clinical Research CenterObesity, Overweight, Acute Migraine7
Seattle Cancer Care AllianceAcute Myeloid Leukemia, Breast Cancer, Chronic Myelomonocytic Leukemia6
University of Washington - Harborview Medical CenterAneurysm, Intracranial, Brain Aneurysm, CPAP6

Active & Upcoming Studies in Seattle (2026)

Recruiting trials in Seattle grouped by therapeutic area, drawn from ClinicalTrials.gov. Each bucket shows the most recent example studies.

Cancer & tumors (486 active studies)

Neurology & pain (62 active studies)

Diabetes & metabolic (59 active studies)

Cardiovascular (50 active studies)

Mental health & behavior (28 active studies)

Pediatric (28 active studies)

HIV / STI (15 active studies)

Vaccines (12 active studies)

Eye & vision (2 active studies)

Common conditions studied in Seattle

Leading research sponsors in Seattle

  • University of Washington
  • Fred Hutchinson Cancer Center
  • National Cancer Institute (NCI)
  • Seattle Children's Hospital
  • AstraZeneca

Frequently asked questions

How many paid clinical trials are currently recruiting in Seattle?

There are approximately 1,284 recruiting clinical trials in Seattle, Washington listed on ClinicalTrials.gov. The number changes weekly as new studies open and others close enrollment.

Do clinical trials in Seattle pay participants?

Most recruiting trials in Seattle compensate participants for their time, travel, and study visits. Compensation varies by sponsor, study phase, and visit requirements — the exact amount is disclosed by the study team during the informed consent process.

Who can participate in a clinical trial in Seattle?

Eligibility depends on the specific study. Each trial defines its own inclusion criteria (age, diagnosis, medical history, prior treatments) and exclusion criteria. Both patients with specific conditions and healthy volunteers can qualify, depending on the study design.

What conditions are most commonly studied in Seattle?

The most common conditions under active study in Seattle include Acute Myeloid Leukemia (34), Colorectal Cancer (20), Breast Cancer (19), Ovarian Cancer (16), among many others. Browse the list above to explore every recruiting trial.

Are there clinical trials for healthy volunteers in Seattle?

Yes. Healthy-volunteer studies — often early-phase pharmacology or vaccine trials — recruit in Seattle on an ongoing basis. Use the "Healthy volunteers only" filter above to view trials that accept participants without the study's target condition.

How do I enroll in a clinical trial in Seattle?

Click any study title above to see the full study record, including eligibility criteria, visit schedule, and the study team's contact information. Reach out to the central contact or recruiting site directly — they will guide you through screening and informed consent.

Where can I take part in paid clinical trials in Seattle?

Recruiting research sites in Seattle include Seattle Children's Hospital, University of Washington, Fred Hutchinson Cancer Center, among others. Each site lists its open studies and contact information on the study record above — call or email the site coordinator to ask about screening for a specific protocol.

What kinds of studies are recruiting in Seattle right now?

The largest active categories in Seattle are Cancer & tumors (486), Neurology & pain (62), Diabetes & metabolic (59). Use the filters above to narrow by therapeutic area, phase, age, or healthy-volunteer eligibility.

Browse more clinical trials

Other cities in Washington

Spokane, WA(193)Tacoma, WA(145)Edmonds, WA(82)Bellevue, WA(81)Vancouver, WA(77)Everett, WA(71)Issaquah, WA(62)Renton, WA(59)Kennewick, WA(44)Kirkland, WA(41)Bellingham, WA(40)Lacey, WA(36)Walla Walla, WA(33)Silverdale, WA(32)Longview, WA(31)Aberdeen, WA(30)Centralia, WA(30)Mount Vernon, WA(29)Olympia, WA(29)Sedro-Woolley, WA(28)Puyallup, WA(27)Yakima, WA(25)Redmond, WA(18)Mill Creek, WA(10)Wenatchee, WA(9)Gig Harbor, WA(8)Spokane Valley, WA(8)Bothell, WA(7)Bonney Lake, WA(6)Federal Way, WA(6)Lynnwood, WA(5)Port Townsend, WA(5)Shelton, WA(5)Bremerton, WA(4)Burien, WA(4)Pullman, WA(4)Yelm, WA(4)Joint Base Lewis McChord, WA(3)Richland, WA(3)Anacortes, WA(2)Auburn, WA(2)Kenmore, WA(2)Burlington, WA(1)Clarkston, WA(1)Enumclaw, WA(1)Ferndale, WA(1)Fort Lewis, WA(1)Georgetown, WA(1)Granger, WA(1)Mercer Island, WA(1)Moses Lake, WA(1)Mountlake Terrace, WA(1)Northwest, WA(1)Pasco, WA(1)Port Angeles, WA(1)Poulsbo, WA(1)Prosser, WA(1)Rosedale, WA(1)Seatle, WA(1)Shoreline, WA(1)

Related healthcare resources in Washington

Latest Seattle, WA clinical trials research report

Trials by condition in Seattle

Acute Myeloid Leukemia· 34Colorectal Cancer· 20Breast Cancer· 19Ovarian Cancer· 16Prostate Cancer· 14Multiple Myeloma· 13