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Attention Deficit Hyperactivity Disorder clinical trials in Seattle, WA

3 studies for Attention Deficit Hyperactivity Disorder are looking for participants at sites in and around Seattle (within about 30 miles). Open a study to see who can join and how to contact the study team.

Recruiting for a study here? Feature it at the top of this page — $99 for 30 days →

About Attention Deficit Hyperactivity Disorder

Does your child have trouble paying attention? This may be a symptom of attention deficit hyperactive disorder (often called ADHD or ADD). Read more.

More about Attention Deficit Hyperactivity Disorder on MedlinePlus

Attention Deficit Hyperactivity Disorder trials in other cities

• Boston, MA10 studies
• Cincinnati, OH8 studies
• Philadelphia, PA6 studies
• Austin, TX6 studies
• Washington, DC5 studies
• Pittsburgh, PA5 studies
• Orlando, FL5 studies
• Las Vegas, NV5 studies
• New York City, NY4 studies
• Memphis, TN4 studies
• Baltimore, MD4 studies
• Los Angeles, CA4 studies

Other studies in Seattle

• Non-Small Cell Lung Cancer53 studies
• Cancer (all types)49 studies
• Prostate Cancer42 studies
• Acute Myeloid Leukemia40 studies
• Breast Cancer39 studies
• Metastatic Cancer39 studies
• Colorectal Cancer34 studies
• Lung Cancer33 studies
• Ovarian Cancer30 studies
• Multiple Myeloma22 studies
• Myelodysplastic Syndromes21 studies
• Acute Lymphoblastic Leukemia21 studies

From ClinicalTrials.gov, data retrieved Oct 3, 2026. Each study sets its own eligibility; the study team decides who can join.