Using Patient Reported Outcomes (PROs) to Evaluate Teriflunomide Treatment in Relapsing Multiple Sclerosis (RMS) Patients

TSQM version 1.4 is a global satisfaction scale used to assess the overall level of participant's satisfaction or dissatisfaction with their medications. It comprises of 14 items assessing the following 4 domains: effectiveness (questions: 1-3), side effects (questions: 4-8), convenience (questions: 9-11), global satisfaction (questions:12-14).

Primary outcome was the global satisfaction score. The score of the corresponding item was added based on the algorithm to create a score of 0 to 100. Higher score indicated greater satisfaction in that domain.

TSQM version 1.4 is a global satisfaction scale used to assess the overall level of participant's satisfaction or dissatisfaction with their medications. It comprises of 14 items assessing the following 4 domains: effectiveness (questions: 1-3), side effects (questions: 4-8), convenience (questions: 9-11), global satisfaction (questions: 12-14). For each of the 4 domains the scores of the corresponding items were added based on an algorithm to create a score of 0 to 100. Higher scores indicated greater satisfaction .

TSQM version 1.4 is a global satisfaction scale used to assess the overall level of participant's satisfaction or dissatisfaction with their medications. It comprises of 14 items assessing the following 4 domains: effectiveness (questions: 1-3), side effects (questions: 4-8), convenience (questions: 9-11), global satisfaction (questions: 12-14). For each of the 4 domains the scores of the corresponding items were added based on an algorithm to create a score of 0 to 100. Higher scores indicated greater satisfaction.

PDDS scale developed to assess the disability in Multiple Sclerosis (MS) participants and in assessing disease progression that focuses mainly on how participants walk. PDDS scale consists of 0 = normal; 1 = mild disability; 2 = moderate disability; 3 = gait disability; 4 = early cane; 5 = late cane; 6 = bilateral support; 7 = wheelchair/scooter and 8 = bedridden. A higher score represented higher level of disability.

MSPS was a self-reported measure for MS associated disability in which participants were asked to indicate the category that best described their condition during the past month on the following 8 subscales: mobility, hand function, vision, fatigue, cognitive symptoms, bladder/bowel, sensory symptoms and spasticity symptoms. MSPS used a single question to assess each of 8 subscales. All of the subscales ranged from 0= normal to 5= total disability, except mobility subscale which ranged from 0= normal to 6=total disability. Total MSPS score ranged from 0 =normal to 41=greater disability, where higher score reflected greater disability.

Annualized treated relapse rate was defined as the total number of treated relapses during the study treatment period divided by the total number participants-years of treatment. Only events occurred during the treatment period (first drug administration to last drug administration) were considered for analysis.

A treated relapse was defined as a relapse treated by a systemic corticosteroid treatment or by another DMT. If a participant had no treated relapse before treatment discontinuation/completion, then the participant was considered as free of treated relapse until the date of treatment discontinuation/completion. Only treated relapse occurred during the treatment period (first drug administration to last drug administration) were considered for analysis. Kaplan-Meier method was used to estimate the probability of treated MS relapse at 4, 24 and 48 weeks.

SDMT measures the time to pair abstract symbols with specific numbers. It is a simple substitution task that gives the examinee 90 seconds to pair specific numbers with given geometric figures as a measure for screening cognitive impairment. The score is computed as a ratio of number of correct responses divided by the total number of responses. The test score range from 0 (worst outcome) to 1 (best outcome). Higher scores are indicative of better cognition function.

Any untoward medical occurrence in a participant who received investigational medicinal product (IMP) was considered an AE without regard to possibility of causal relationship with this treatment. Treatment-emergent adverse events (TEAEs) were defined as AEs that developed or worsened or became serious during from first study drug intake up to 112 days after last intake for participant with no accelerated elimination procedure (AEP) or to last AEP follow up visit for participants with AEP. A serious adverse event (SAE) was defined as any untoward medical occurrence that resulted in any of the following outcomes: death, life-threatening, required initial or prolonged in-patient hospitalization, persistent or significant disability/incapacity, congenital anomaly/birth defect, or considered as medically important event. Any TEAE included participants with both serious and non-serious AEs.

Percentage of compliance for a participant was defined as the number of days that the participant was compliant (1 tablet/day) divided by the exposure duration in days (from the first dose administration to the last dose administration) times 100.

Duration of exposure was defined as last dose date - first dose date + 1 day, regardless of unplanned intermittent discontinuations and regardless of dosage administered (14 mg or 7 mg).

The MusiQoL is a quality of life questionnaire that consists of 31 questions, divided into 9 dimensions: activities of daily living, physiological well-being, symptoms, relationship with friends, relationship with family, sentimental and sexual life, coping, rejection and relationship with healthcare system. All the 9 dimension scores and the global scores are linearly transformed and standardized on 0 (worst outcome) -100 (best outcome) scale. Higher scores represents higher quality of life.

The Stern Leisure Activity Scale is a self-reported scale that consists of 13 questions assessing the participant's participation in leisure activities during the preceding month. One point is given for participation in each of the 13 activities and an aggregate score (range from 0 to 13) is obtained. ≤ 6 score is considered as low leisure activity and > 6 score as high leisure activity.

EDSS is a method of quantifying disability in MS participants and monitoring changes in the level of disability over time. EDSS quantifies disability in 8 functional systems: pyramidal, cerebellar, brainstem, sensory, bowel and bladder, visual, cerebral, and other. EDSS scale ranges from 0 to 10 in 0.5 unit increments that represents higher levels of disability. EDSS score 1.0 to 4.5 refers to people with MS who are fully ambulatory; EDSS score 5.0 to 9.5 refers to impairment to ambulation; EDSS score 10 refers to death due to MS.