Safety and Tolerability of Conversion From Oral, Injectable, or Infusion Disease Modifying Therapies to Dose-titrated Oral Siponimod (Mayzent) in Advancing RMS Patients

An Adverse Event (AE) is any untoward medical occurrence in a participant that does not necessarily have a causal relationship with the treatment. An AE can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding, for example), symptom, or disease temporarily associated with the use of a medicinal product, whether or not considered related to the medicinal product. TEAEs are defined as the AEs started after the first dose of siponimod to 30 days after the date of the last actual administration, or events present prior to start of treatment but which increased in severity. TEAEs suspected to be related to study drug are reported.

AE is any untoward sign or symptom that occurs during the study treatment plus 30 days post treatment.

TSQM-9 measures participant satisfaction with the medication in 3 domains: Effectiveness, convenience, and global satisfaction. The scores were computed by adding items for each domain, i.e., 1 to 3 for effectiveness, 4 to 6 for convenience, and 7 to 9 for global satisfaction. The lowest possible score (1 for each item and 3 for all 3 subscales) was subtracted from the composite score and divided by the greatest possible score range. The greatest range was (7-1) x 3 items = 18 for effectiveness and convenience, and (5-1) x 3 items = 12 for global satisfaction. This provided a transformed score between 0 and 1 that was then multiplied by 100. TSQM-9 domain scores range from 0 to 100, with higher scores indicating greater satisfaction for that domain. A positive change from baseline indicates improvement.

Heart rate was evaluated from the time of initial dose intake until 6 hours post dose intake via heart monitor.

Patient retention was assessed over the study period.