PMID- 32911306 OWN - NLM STAT- MEDLINE DCOM- 20210514 LR - 20220531 IS - 2211-0356 (Electronic) IS - 2211-0348 (Linking) VI - 46 DP - 2020 Nov TI - Long-term safety and efficacy of teriflunomide in patients with relapsing multiple sclerosis: Results from the TOWER extension study. PG - 102438 LID - S2211-0348(20)30513-7 [pii] LID - 10.1016/j.msard.2020.102438 [doi] AB - BACKGROUND: In the phase 3 TOWER core study (NCT00751881), the efficacy and safety of teriflunomide compared with placebo were demonstrated in patients with relapsing forms of multiple sclerosis (RMS). Here, the long-term safety and efficacy outcomes from the TOWER extension study (NCT00751881) are reported. METHODS: All patients who entered the extension (N = 751) were assigned to teriflunomide 14 mg and assessed for long-term safety and efficacy. RESULTS: Of 751 patients in the TOWER extension study, 253, 265, and 233 patients received placebo/teriflunomide 14 mg, teriflunomide 7 mg/14 mg, and teriflunomide 14 mg/14 mg, respectively. Median teriflunomide exposure was 4.25 years (maximum 6.3 years). The overall frequency of adverse events (AEs) was comparable across treatment groups, but a higher proportion of patients in the teriflunomide 7 mg/14 mg (12.4%) and 14 mg/14 mg (12.4%) groups had serious AEs compared with the placebo/teriflunomide 14 mg group (6.4%). Alanine aminotransferase increase and hair thinning occurred at a higher frequency in the placebo/teriflunomide 14 mg group (11.2% and 14.3%, respectively) compared with the teriflunomide 7 mg/14 mg (3.0% and 4.5%, respectively) and 14 mg/14 mg groups (5.2% and 4.3%, respectively). The incidences of AEs of interest (hematologic and hepatic effects, peripheral neuropathy, hypertension, and malignancy) were low and comparable across treatment arms. Disability worsening and adjusted annualized relapse rates were low and stable over time, and mean Expanded Disability Status Scale scores were unchanged over time, for all treatment groups. CONCLUSION: In the TOWER extension study, the efficacy of teriflunomide 14 mg was maintained in patients with RMS. No new or unexpected AEs were observed with teriflunomide treatment, supporting a safety profile in the extension that was consistent with the core trial. These findings support the positive benefit:risk profile of teriflunomide as a long-term immunomodulatory therapy. CI - Copyright (c) 2020. Published by Elsevier B.V. FAU - Miller, Aaron E AU - Miller AE AD - Department of Neurology, Icahn School of Medicine at Mount Sinai, 5 East 98th Street-Box 1138, New York, NY, 10029, United States. Electronic address: aaron.miller@mssm.edu. FAU - Olsson, Tomas P AU - Olsson TP AD - Neuroimmunology Unit, Department of Clinical Neuroscience, Karolinska Institutet, Center for Molecular Medicine, L8:04, Karolinska Hospital, 17176 Stockholm, Sweden. FAU - Wolinsky, Jerry S AU - Wolinsky JS AD - Department of Neurology, McGovern Medical School, The University of Texas Health Science Center at Houston (UTHealth), 6431 Fannin Street, Houston, TX, 77030, United States. FAU - Comi, Giancarlo AU - Comi G AD - Ospedale San Raffaele, Milan, Italy. FAU - Kappos, Ludwig AU - Kappos L AD - Neurologic Clinic and Policlinic, Departments of Medicine, Clinical Research and Biomedical Engineering, University Hospital and University of Basel, Petersgraben 4, CH-4031 Basel, Switzerland. FAU - Hu, Xueqiang AU - Hu X AD - Neurology, Hospital of Sun Yat-Sen University, 107 Yan Jiang West Road, Guangzhou, China. FAU - Xu, Xianhao AU - Xu X AD - Beijing Hospital, No. 1 Dahua Road, Beijing, China. FAU - Lublin, Alex L AU - Lublin AL AD - Sanofi, Cambridge, MA, United States. FAU - Truffinet, Philippe AU - Truffinet P AD - Sanofi, Chilly-Mazarin, France. FAU - Chavin, Jeffrey AU - Chavin J AD - Sanofi, Cambridge, MA, United States. FAU - Delhay, Jean-Luc AU - Delhay JL AD - Sanofi, Chilly-Mazarin, France. FAU - Benamor, Myriam AU - Benamor M AD - Sanofi, Chilly-Mazarin, France. FAU - Purvis, Annie AU - Purvis A AD - Sanofi, Cambridge, MA, United States. FAU - Freedman, Mark S AU - Freedman MS AD - The Ottawa Hospital Ontario, 501 Smyth Road, Box 601, Ottawa, ON, Canada. CN - TOWER investigators LA - eng SI - ClinicalTrials.gov/NCT00751881 PT - Clinical Trial, Phase III PT - Journal Article PT - Randomized Controlled Trial DEP - 20200801 PL - Netherlands TA - Mult Scler Relat Disord JT - Multiple sclerosis and related disorders JID - 101580247 RN - 0 (Crotonates) RN - 0 (Hydroxybutyrates) RN - 0 (Nitriles) RN - 0 (Toluidines) RN - 1C058IKG3B (teriflunomide) SB - IM MH - Crotonates/adverse effects MH - Humans MH - Hydroxybutyrates MH - *Multiple Sclerosis MH - *Multiple Sclerosis, Relapsing-Remitting/drug therapy MH - Nitriles MH - Recurrence MH - Toluidines/adverse effects OTO - NOTNLM OT - Efficacy OT - Extension OT - Long-term OT - Safety OT - Teriflunomide EDAT- 2020/09/11 06:00 MHDA- 2021/05/15 06:00 CRDT- 2020/09/10 20:16 PHST- 2020/02/26 00:00 [received] PHST- 2020/07/30 00:00 [revised] PHST- 2020/07/31 00:00 [accepted] PHST- 2020/09/11 06:00 [pubmed] PHST- 2021/05/15 06:00 [medline] PHST- 2020/09/10 20:16 [entrez] AID - S2211-0348(20)30513-7 [pii] AID - 10.1016/j.msard.2020.102438 [doi] PST - ppublish SO - Mult Scler Relat Disord. 2020 Nov;46:102438. doi: 10.1016/j.msard.2020.102438. Epub 2020 Aug 1.