Overview MTX Discontinuation and Vaccine Response Status: Completed Trial end date: 2016-08-01 Target enrollment: Participant gender: Summary To investigate whether a short term discontinuation of methotrexate (MTX) will improve the vaccination efficacy to seasonal influenza vaccination without deteriorating RA disease activity in a randomized clinical trial. Phase: Phase 4 Details Lead Sponsor: Seoul National University HospitalTreatments: MethotrexateVaccines