As of July 2026, 1,299 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, Breast Cancer, Colorectal 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: .
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.
| Site | Specializes in | Active trials |
|---|---|---|
| Seattle Children's Hospital | Diffuse Intrinsic Pontine Glioma, Cystic Fibrosis, High Grade Glioma | 189 |
| University of Washington | Amyotrophic Lateral Sclerosis, Multiple Myeloma, Spinal Cord Injuries | 186 |
| Fred Hutchinson Cancer Center | Breast Cancer, Colorectal Cancer, Acute Myeloid Leukemia | 141 |
| Fred Hutch/University of Washington Cancer Consortium | Acute Myeloid Leukemia, Hematopoietic and Lymphatic System Neoplasm, Mixed Phenotype Acute Leukemia | 104 |
| Swedish Medical Center-First Hill | Acute Myeloid Leukemia, Anatomic Stage II Breast Cancer AJCC v8, Malignant Solid Neoplasm | 66 |
| University of Washington Medical Center | Cystic Fibrosis, Heart Transplant, Tricuspid Regurgitation | 49 |
| Swedish Medical Center | ARDS, ARDS (Acute Respiratory Distress Syndrome), Acute Respiratory Distress Syndrome | 40 |
| Fred Hutchinson Cancer Research Center | Advanced Solid Tumor, Chronic Lymphocytic Leukemia, Chronic Graft-versus-host-disease | 37 |
| Swedish Cancer Institute | Breast Cancer, Endometrial Cancer, Breast Neoplasms | 37 |
| University of Washington Medical Center - Montlake | Prostate Adenocarcinoma, Acute Myeloid Leukemia, Anatomic Stage II Breast Cancer AJCC v8 | 37 |
| Swedish Medical Center-Ballard Campus | Malignant Solid Neoplasm, Breast Cancer, Ovarian Carcinoma | 33 |
| Swedish Medical Center-Cherry Hill | Malignant Solid Neoplasm, Breast Cancer, Ovarian Carcinoma | 32 |
| Virginia Mason Medical Center | Breast Cancer, Hearing Loss, Unilateral, Hepatocellular Carcinoma | 30 |
| Harborview Medical Center | Ischemic Stroke, Spinal Cord Injuries, Urothelial Carcinoma | 21 |
| VA Puget Sound Health Care System Seattle Division, Seattle, WA | Obesity, Adult Growth Hormone Deficiency, Alcohol Use Disorder | 20 |
| Seattle Children's | Suicidal Ideation, Acute Kidney Injury, Becker Muscular Dystrophy | 18 |
| FHCC at Northwest Hospital | Anatomic Stage II Breast Cancer AJCC v8, Anatomic Stage IIIA Breast Cancer AJCC v8, Anatomic Stage IIIB Breast Cancer AJCC v8 | 14 |
| VA Puget Sound Health Care System | Parkinson's Disease, Amputation, Barrett's Esophagus | 13 |
| Fred Hutch Cancer Center | Colorectal Cancer, Advanced Adenocarcinoma, Astrocytoma, Grade IV | 11 |
| GSK Investigational Site | Non-alcoholic Fatty Liver Disease, Gastrointestinal Neoplasms, HIV Infections | 9 |
| Seattle Children's Research Institute | ADA SCID, Adolescent Behavior, Brain Concussion | 8 |
| Benaroya Research Institute | Acute Pancreatitis, Type 1 Diabetes Mellitus, Diabetes Mellitus, Type 1 | 7 |
| Seattle Cancer Care Alliance | Acute Myeloid Leukemia, Breast Cancer, Chronic Myelomonocytic Leukemia | 7 |
| Seattle Clinical Research Center | Obesity, Overweight, Acute Migraine | 7 |
| University of Washington - Harborview Medical Center | Aneurysm, Intracranial, Brain Aneurysm, CPAP | 7 |
Recruiting trials in Seattle grouped by therapeutic area, drawn from ClinicalTrials.gov. Each bucket shows the most recent example studies.
There are approximately 1,299 recruiting clinical trials in Seattle, Washington listed on ClinicalTrials.gov. The number changes weekly as new studies open and others close enrollment.
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.
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.
The most common conditions under active study in Seattle include Acute Myeloid Leukemia (34), Breast Cancer (22), Colorectal Cancer (19), Ovarian Cancer (16), among many others. Browse the list above to explore every recruiting trial.
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.
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.
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.
The largest active categories in Seattle are Cancer & tumors (495), Neurology & pain (71), Diabetes & metabolic (59). Use the filters above to narrow by therapeutic area, phase, age, or healthy-volunteer eligibility.