Overview Clopidogrel For the Prevention of New Onset Migraine Headache Following Transcatheter Closure of Atrial Septal Defects Status: Completed Trial end date: 2016-12-01 Target enrollment: Participant gender: Summary The addition of clopidogrel on top of aspirin may reduce the occurrence of new-onset migraine headache episodes following transcatheter ASD closure. Phase: Phase 4 Details Lead Sponsor: Laval UniversityCollaborators: Bristol-Myers SquibbSanofiTreatments: AspirinClopidogrelPolystyrene sulfonic acidTiclopidine