The patient's reporting of adverse drug reactions (ADRs) is recognized as being of interest for post-marketing safety monitoring, but is still underdeveloped in France, with an average lower than the European average. A multidisciplinary team of the University Hospital of Caen, composed of neurologists and pharmacovigilants, has been carrying out since autumn 2017 a national study (VIGIP-SEP1) with 24 research centers in France (12 universitary hospitals, 6 general hospitals, and 6 private-practice neurologists) whose main objective was to evaluate the impact of multiple sclerosis (MS) patients' use of a mobile application (App) to report their ADRs. My eReport France® has been developed by the eVedrug company: ADR reports are sent by patients directly to the Regional Pharmacovigilance Centers, after analyze, clinical pharmacologist send it to the National Competent Authority. As part of VIGIP-SEP1, the accompaniment for the use of the App was carried out very simply by neurologists.

We designed a randomized controlled trial based on the assumption that a nurse training of the patient, after the initial prescription of an oral MS drug, with a telephone follow-up within 6 months, will increase by 3 times the number of patients who report ADRs compared to a simple information presented by the neurologist. The number of subjects required is 23 subjects per group.

Inclusion Criteria:

• more than 18 years
• multiple sclerosis in initiation with a DMT
• patient informed and who gave informed consent

Exclusion Criteria:

• patient without mobile or tablet