Home › Long COVID › Washington › Seattle
Long COVID clinical trials in Seattle, WA
5 studies for Long COVID 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 →
A Study to Evaluate the Safety, Reactogenicity, and Immunogenicity of mRNA-1283 in Participants ≥6 Months to <12 Years of Age
RecruitingPhase 2Healthy volunteers welcome
- Childrens Hospital Regional Medical Center, Seattle
A Study to Learn About the Study Medicine Ibuzatrelvir in Adults With COVID-19 Who Are Severely Immunocompromised
RecruitingPhase 3
- Seattle Rheumatology Associates, Seattle
- Swedish Ambulatory Infusion Center- First Hill, Seattle
- Swedish Cancer Institute Treatment Center, Seattle
- and 6 more
Randomized Double-Blind Placebo-Controlled Trial EValuating Baricitinib on PERSistent NEurologic and Cardiopulmonary Symptoms of Long COVID
RecruitingPhase 3
- Swedish Medical Center, Seattle
A Study on the Safety and Immune Response of Investigational mRNA Seasonal Flu/COVID-19 Combination Vaccine in Adults
RecruitingPhase 1
- GSK Investigational Site, Seattle
Phase III DAS181 Lower Tract PIV Infection in Immunocompromised Subjects (Substudy: DAS181 for COVID-19): RCT Study
RecruitingPhase 3
- Seattle Children's Hospital, Seattle
- Fred Hutchinson Cancer Center, Seattle
- Fred Hutchinson Cancer Research Center, Seattle
About Long COVID
Anyone who has had COVID-19 can have long-lasting symptoms, know as long COVID. Learn about the symptoms and how to manage them, diagnosis, and prevention.
More about Long COVID on MedlinePlus
Long COVID trials in other cities
- New York City, NY17 studies
- Houston, TX14 studies
- Chicago, IL12 studies
- Washington, DC12 studies
- Boston, MA11 studies
- Baltimore, MD11 studies
- Hialeah, FL8 studies
- Durham, NC8 studies
- San Francisco, CA8 studies
- Atlanta, GA7 studies
- San Diego, CA7 studies
- Miami, FL7 studies
Other studies in Seattle
- Non-Small Cell Lung Cancer55 studies
- Cancer (all types)48 studies
- Prostate Cancer45 studies
- Acute Myeloid Leukemia40 studies
- Metastatic Cancer39 studies
- Breast Cancer37 studies
- Colorectal Cancer35 studies
- Lung Cancer34 studies
- Ovarian Cancer29 studies
- Pancreatic Cancer22 studies
- Multiple Myeloma22 studies
- Acute Lymphoblastic Leukemia22 studies
From ClinicalTrials.gov, data retrieved Nov 15, 2026. Each study sets its own eligibility; the study team decides who can join.