Home › Long COVID › Washington
Long COVID clinical trials in Washington
6 studies for Long COVID are looking for participants at sites in Washington.
Cities in Washington
A Study to Evaluate the Safety, Reactogenicity, and Immunogenicity of mRNA-1283 in Participants ≥6 Months to <12 Years of Age
- Childrens Hospital Regional Medical Center, Seattle
RecruitingPhase 2Healthy volunteers welcome
6 Months – 11 Years · All sexes · Updated Nov 9, 2026 · NCT07808697A Clinical Study of Molnupiravir to Prevent Severe Illness From Coronavirus Disease 2019 (COVID-19) in People Who Are High Risk (MK-4482-023)
- Eastside Research Associates ( Site 3727), Redmond
RecruitingPhase 3
Ages 18 and older · All sexes · Updated Nov 6, 2026 · NCT06667700A Study to Learn About the Study Medicine Ibuzatrelvir in Adults With COVID-19 Who Are Severely Immunocompromised
- Seattle Rheumatology Associates, Seattle
- Swedish Ambulatory Infusion Center- First Hill, Seattle
- Swedish Cancer Institute Treatment Center, Seattle
- and 6 more
RecruitingPhase 3
Ages 18 and older · All sexes · Updated Oct 14, 2026 · NCT07013474Randomized Double-Blind Placebo-Controlled Trial EValuating Baricitinib on PERSistent NEurologic and Cardiopulmonary Symptoms of Long COVID
- Swedish Medical Center, Seattle
RecruitingPhase 3
Ages 18 and older · All sexes · Updated Sep 25, 2026 · NCT06631287A Study on the Safety and Immune Response of Investigational mRNA Seasonal Flu/COVID-19 Combination Vaccine in Adults
- GSK Investigational Site, Seattle
RecruitingPhase 1
Ages 65 to 85 · All sexes · Updated Jun 30, 2026 · NCT07464314Phase III DAS181 Lower Tract PIV Infection in Immunocompromised Subjects (Substudy: DAS181 for COVID-19): RCT Study
- Seattle Children's Hospital, Seattle
- Fred Hutchinson Cancer Center, Seattle
- Fred Hutchinson Cancer Research Center, Seattle
RecruitingPhase 3
All ages · All sexes · Updated Jun 23, 2026 · NCT03808922From ClinicalTrials.gov, data retrieved Nov 15, 2026. Each study sets its own eligibility; the study team decides who can join.