Twelve-year follow-up of teriflunomide shows continued efficacy, safety
Mark Freedman, MD, of the University of Ottawa and the Ottawa Hospital Research Institute and his associates reported long-term follow-up data on the efficacy and safety of teriflunomide (Aubagio) in relapsing forms of MS (Mult Scler. 2018;24[S2]:700-1, Abstract P1233). After up to 12 years’ follow up, teriflunomide 14 mg was associated with an overall annualized relapse rate of 0.228.
Yearly annualized relapse rates were “low and stable,” Dr. Freedman and his coauthors from the United States, Spain, Italy, France, Germany, England, the Republic of Korea, and Australia noted in their poster.
“As of August 2018, over 93,000 patients were being treated with teriflunomide,” the authors stated. This represented a real-world exposure of approximately 186,000 patient-years up to December 2017, they added.
For the analysis, data from one phase 2 study and three phase 3 studies (TEMSO, TOWER, and TENERE) and their long-term extension studies were pooled. In all, there were 1,696 patients treated with 14 mg of teriflunomide in these studies.
Annualized relapse rates ranged from 0.321 in the first year of follow-up in the studies to 0.080 by the 12th year. The proportions of patients remaining relapse free “were high and stable (ranging from 0.75 in year 1 to 0.93 in years 8 and 9).” EDSS scores were 2.57 at baseline and 2.27 at year 12.
Importantly, no new safety signals were reported, Dr. Freedman and his colleagues wrote, adding that most adverse events were mild to moderate in severity.
Taken together, “these data demonstrate the long-term efficacy and safety of teriflunomide,” they concluded.
Study and author disclosures
The teriflunomide analysis was supported by Sanofi. Dr. Freedman disclosed receiving research or educational grant support from Bayer and Genzyme; honoraria/consulting fees from Bayer, Biogen, EMD Canada, Novartis, Sanofi, and Teva; and membership on company advisory boards/boards of directors/other similar groups for Bayer, Biogen, Chugai, Merck Serono, Novartis, Opexa Therapeutics, Sanofi, and Teva.
The IMSE 1 and 5 studies were supported by Biogen and the IMSE 2 and 3 studies by Novartis. The lead study authors for the IMSE studies – Dr. Kågström, Dr. Fält, and Dr. Safer Demirbüker – had nothing personal to disclose. Other authors included employees of the sponsoring companies or those who had received research funding or honoraria for consultancy work from the companies.
The VIRGILE study was supported by Novartis Pharma AG, Switzerland. Dr. Lebrun-Frenay disclosed receiving consultancy fees from Merck, Novartis, Biogen, MedDay, Roche, Teva, and Genzyme. Coauthors included Novartis employees.