• José Eustasio Meca-Lallana, Rocío Hernández-Clares, and Ester Carreón-Guarnizo.
• Unidad de Esclerosis Múltiple, Hospital Clínico Universitario Virgen de la Arrixaca, Murcia, España; Cátedra de Neuroinmunología Clínica y Esclerosis Múltiple, UCAM, Universidad Católica San Antonio de Murcia, Murcia, España. Electronic address: pmecal@gmail.com.
• Med Clin (Barc). 2014 Dec 1; 143 Suppl 3: 23-9.

AbstractThe development of new disease-modifying drugs (DMD) in relapsing-remitting multiple sclerosis (RRMS), which share the common denominator of oral administration, considerably improves patient expectations in terms of effectiveness, tolerability and treatment adherence compared with currently available drugs. However, the common route of administration of these drugs does not mean that they are equivalent, since the heading of "oral route" encompasses drugs with distinct indications and mechanisms of action, as well as heterogeneous results in terms of efficacy and safety, allowing treatment to be personalized according to the each patient' s characteristics. Currently, four oral DMD are available or in an advanced stage of clinical development: fingolimod, teriflunomide, dimethyl fumarate and laquinimod. In pivotal trials versus placebo, these molecules reduced the annualized rate of exacerbations versus placebo by 54%, 31%, 53% and 23%, respectively, the risk of progression of disability by 31%, 30%, 38% and 36%, and the number of active lesions showing contrast uptake on magnetic resonance imaging by 82%, 80%, 90% and 37%, respectively. Based on the risk/benefit ratio, fingolimod is indicated in patients with suboptimal response to initial DMD or in severe rapidly progressing RRMS, while the remaining drugs can be used as first-line options. Clinical experience with these treatments will provide new data on safety and effectiveness, which will be determinant when establishing therapeutic algorithms. Copyright © 2014 Elsevier España, S.L.U. All rights reserved.

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