Clinical trial
Impact of Particulate Matter in Chronic Obstructive Pulmonary Disease Patients
NCT04020237
Study timeline
Study start (estimated)2019-07-11Date precision: day
Registry last updated2019-07-17
Observed by CureCurrent2026-10-07
Recorded dates are source observations, not predictions. Missing milestones are not estimated.
Conditions
COPDunresolved
Interventions
Sponsors & collaborators
Sei Won Leelead sponsor
Korea Centers for Disease Control & Preventioncollaborator
Registry source
Open the source record to verify current eligibility, contacts, locations and registry updates.
Open NCT04020237 on ClinicalTrials.gov ↗Registry-derived research relationships: ClinicalTrials.gov. Raw condition and intervention labels remain distinct from canonical MONDO/RxNorm entities unless separately normalized.