European Commission approves Aubagio® (teriflunomide) as the first oral MS therapy for first-line treatment of children and adolescents living with relapsing-remitting multiple sclerosis

European Commission approves Aubagio^® (teriflunomide) as the first oral MS therapy for first-line treatment of children and adolescents living with relapsing-remitting multiple sclerosis

PARIS – June 18, 2021 - The European Commission (EC) has approved Aubagio^® (teriflunomide) for the treatment of pediatric patients 10 to 17 years of age with relapsing-remitting multiple sclerosis (RRMS). The EC approval is based on data from the Phase 3 TERIKIDS study. The approval confirms Aubagio as the first oral multiple sclerosis (MS) therapy for first-line treatment of children and adolescents with MS in the European Union.

MS affects an estimated 2.8 million people around the world, with children and adolescents representing at least 30,000 of those impacted.^1,2 Pediatric MS is a rare condition and onset follows a relapsing-remitting disease course in 98 percent of pediatric patients.^3,4 Compared with adult-onset MS, pediatric patients often present with higher relapse rates and a greater lesion burden.⁵ Due to the earlier onset of disease, irreversible disability and secondary progression often occur at an earlier age than with adult counterparts.³ The symptoms of MS can impact all aspects of a young person’s life from physical health to social development and self-esteem.⁶

“Pediatric multiple sclerosis remains an area of significant unmet medical need,” said Erik Wallström, MD, PhD, Therapeutic Area Head, Neurology Development at Sanofi Genzyme. “The European approval of Aubagio in pediatrics means young people with MS have a new treatment option, and importantly - one that can offer meaningful improvement in managing this serious disease.”

Aubagio was initially approved in the EU in 2013 for the treatment of adult patients with RRMS and the EC approval for the pediatric indication provides an additional year of marketing protection in the European Union.

Aubagio Efficacy and Safety in Pediatric Patients

The Phase 3 TERIKIDS study is a multicenter, randomized, double-blind, placebo-controlled, parallel-group trial that enrolled 166 pediatric patients with relapsing-remitting forms of MS across 22 countries worldwide. The study consisted of a screening period (up to four weeks), followed by a double-blind treatment period (up to 96 weeks after randomization). An open-label TERIKIDS Phase 3 trial extension is ongoing. The primary endpoint was time to first confirmed clinical relapse, with prespecified sensitivity analysis including time to high magnetic resonance imaging (MRI) activity as relapse equivalent. Additionally, patients who completed the double-blind period, or had high MRI activity, were eligible to continue into the open-label extension.

The primary efficacy results and safety and tolerability data from the double-blind core study period (up to 96 weeks after randomization) were initially presented at the 2020 EAN Virtual Congress.

In the study, 109 and 57 patients were randomized to teriflunomide and placebo, respectively.

The primary endpoint was not statistically significant with numerically a lower risk (-34%) of clinical relapse for teriflunomide vs placebo (median time: 75.3 vs 39.1 weeks; HR [95% CI] 0.66 [0.39, 1.1] P=0.29). Switches from double-blind to open-label treatment due to high MRI activity were more frequent than anticipated. Switches were more frequent and earlier in the placebo group vs teriflunomide (26% and 14%, respectively). This decreased study power for the primary endpoint.

In the pre-specified sensitivity analysis of the composite endpoint of time to first clinical relapse or high MRI activity meeting study criteria to switch to open label, teriflunomide significantly reduced the time to clinical relapse or switch due to high MRI activity by 43% relative to placebo (median time: 72.1 vs 37.0 weeks; HR [95% CI] 0.57 [0.37, 0.87] P=0.04).

Key secondary endpoints showed teriflunomide significantly reduced the number of T1 gadolinium (Gd) -enhancing lesions per MRI scan (relative reduction 75%; P<0.0001) as well as the number of new and enlarging T2 lesions per MRI scan (relative reduction 55%, P=0.0006).

In the study, teriflunomide was well tolerated and had a manageable safety profile in the pediatric population. The overall incidences of adverse events (AEs) and serious adverse events (SAEs) were similar in the teriflunomide group and the placebo group (88.1% vs 82.5%, and 11.0% vs 10.5%), respectively. There were no deaths in the study. AEs reported more frequently in the teriflunomide group than the placebo group (with a difference of ≥ 5%) included nasopharyngitis, upper respiratory tract infection, alopecia, paresthesia, abdominal pain, and increased blood creatine phosphokinase (≥ 3 times the upper limit of normal). Cases of pancreatitis were reported in 1.8% (2/109) of the teriflunomide-treated patients compared to none in the placebo group, in the double-blind phase. In pediatric patients treated with teriflunomide in the open-label phase of the study, two additional cases of pancreatitis and one case of serious acute pancreatitis (with pseudo-papilloma), were reported.

For more information on the TERIKIDS Phase 3 clinical trial visit www.clinicaltrials.gov.

Multiple Sclerosis: a chronic disease that attacks the central nervous system

Multiple sclerosis is a chronic neurodegenerative disease in which a person's immune system causes damage to the brain and spinal cord. It is an unpredictable disease that affects 2.8 million people around the world, and the latest prevalence statistics across 47 countries estimate that at least 30,000 of those affected are children and teenagers.^1,2

About Aubagio^® (teriflunomide)

Aubagio is approved in more than 80 countries to treat certain patients with relapsing-remitting multiple sclerosis, with additional marketing applications under review by regulatory authorities globally. Aubagio is supported by one of the largest clinical programs of any MS therapy, with more than 5,000 trial participants in 36 countries, as well as a Phase 4 study program with more than 3,600 patients currently enrolled. There is over 16 years of combined clinical and real-world experience with Aubagio. More than 110,000 patients are currently being treated with Aubagio commercially worldwide.

¹ Walton, C., King, R., Rechtman, L., Kaye, W., Leray, E., Marrie, R., Robertson, N., La Rocca, N., Uitdehaag, B., van der Mei, I., Wallin, M., Helme, A., Angood Napier, C., Rijke, N., & Baneke, P. Rising prevalence of multiple sclerosis worldwide: Insights from the Atlas of MS, third edition. Multiple Sclerosis Journal 2020; 26:14.

² The Multiple Sclerosis International Federation Atlas of MS, 3rd ed, September 2020. https://www.atlasofms.org.

³ Renoux C, Vukusic S, Confavreux C. The natural history of multiple sclerosis with childhood onset. Clin Neurol Neurosurg. 2008;110(9):897-904.

⁴ Alroughani R, Boyko A. Pediatric multiple sclerosis: a review. BMC Neurol 2018; 18:27.

⁵ Pena JA, Lotze TE. Pediatric multiple sclerosis: current concepts and consensus definitions. Autoimmune Diseases 2013(3):673947.

⁶ MacAllister WS, Boyd JR, Holland NJ, Milazzo MC, Krupp LB. The psychosocial consequences of pediatric multiple sclerosis. Neurology. 2007;68(16 SUPPL. 2):S66–S69.

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