Title
Influenza Vaccination and Oral Anticoagulant Therapy
Randomized Blinded Cross-Over Clinical Trial Investigate the Interactions Between Influenza Vaccination and Oral Anticoagulant Therapy
Phase
Phase 4Lead Sponsor
University of PerugiaStudy Type
InterventionalStatus
Completed No Results PostedIndication/Condition
Anticoagulants Influenza VaccinesIntervention/Treatment
inactivated influenza vaccine ...Study Participants
100The purpose of this study is to evaluate INR and INR related index and Warfarin weekly dosage variations after Influenza Vaccination
The pharmacokinetic and the pharmacodynamic interactions and the possible clinical events connected with the simultaneous administration of Oral Anticoagulants (OA) and the influenza virus vaccine were evaluated in several small studies which yielded conflicting results, thus encouraging additional investigations with prospective studies in order to obtain a more consistent evidence about the safety and efficacy of vaccination against influenza virus in patients on OA Treatment.
Inclusion Criteria: OA Treatment Stable anticoagulation (previous two controls in range) Presence of indication for Influenza Vaccination Life expectancy > 6 months Signed Informed consent Exclusion Criteria: Absence of stable anticoagulation Absence of indication for Influenza Vaccination Life expectancy < 6 months Denied Informed Consent