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Safety, Tolerability, and Efficacy of Oral Therapies for Relapsing-Remitting Multiple Sclerosis

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Abstract

Treatment options for relapsing-remitting multiple sclerosis (RRMS) have been continuously expanding in recent years, and the emergence of a number of oral disease-modifying agents (DMAs) has significantly changed the landscape of therapeutic options for MS patients. Many of these oral DMAs have demonstrated satisfactory safety and tolerability profiles in clinical trial settings, but the long-term safety of these agents is an important concern. This review discusses salient points on the safety and clinical efficacy of the approved and emerging novel oral therapies in RRMS, including fingolimod, teriflunomide, dimethyl fumarate, laquinimod, and cladribine.

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References

  1. Brinkmann V. Sphingosine 1-phosphate receptors in health and disease: mechanistic insights from gene deletion studies and reverse pharmacology. Pharmacol Ther. 2007;115(1):84–105.

    Article  PubMed  CAS  Google Scholar 

  2. Matloubian M, Lo CG, Cinamon G, Lesneski MJ, Xu Y, Brinkmann V, et al. Lymphocyte egress from thymus and peripheral lymphoid organs is dependent on S1P receptor 1. Nature. 2004;427(6972):355–60.

    Article  PubMed  CAS  Google Scholar 

  3. Mandala S, Hajdu R, Bergstrom J, Quackenbush E, Xie J, Milligan J, et al. Alteration of lymphocyte trafficking by sphingosine-1-phosphate receptor agonists. Science. 2002;296(5566):346–9.

    Article  PubMed  CAS  Google Scholar 

  4. Miron VE, Jung CG, Kim HJ, Kennedy TE, Soliven B, Antel JP. FTY720 modulates human oligodendrocyte progenitor process extension and survival. Ann Neurol. 2008;63(1):61–71.

    Article  PubMed  CAS  Google Scholar 

  5. Kappos L, Radue EW, O’Connor P, Polman C, Hohlfeld R, Calabresi P, et al. A placebo-controlled trial of oral fingolimod in relapsing multiple sclerosis. N Engl J Med. 2010;362(5):387–401.

    Article  PubMed  CAS  Google Scholar 

  6. Cohen JA, Barkhof F, Comi G, Hartung HP, Khatri BO, Montalban X, et al. Oral fingolimod or intramuscular interferon for relapsing multiple sclerosis. N Engl J Med. 2010;362(5):402–15.

    Article  PubMed  CAS  Google Scholar 

  7. FDA. Gilenya (fingolimod): drug safety communication—safety review of a reported death after the first dose. 2011, updated 2012. http://www.fda.gov/Safety/MedWatch/SafetyInformation/SafetyAlertsforHumanMedicalProducts/ucm284355.htm. Accessed Jan 23 2013.

  8. Novartis. Novartis statement on reported multiple sclerosis (MS) deaths of patients on Gilenya (fingolimod) from any cause through December 13, 2011. http://www.novartis.com/downloads/newsroom/product-related-info-center/statement.pdf. Accessed Oct 25 2012.

  9. FDA. FDA Drug safety communication: revised recommendations for cardiovascular monitoring and use of multiple sclerosis drug Gilenya (fingolimod). 2012. http://www.fda.gov/Drugs/DrugSafety/ucm303192.htm#data. Accessed Oct 25 2012.

  10. European Medicines Agency. European Medicines Agency starts review of Gilenya (fingolimod) 2012. http://www.ema.europa.eu/ema/index.jsp?curl=pages/medicines/human/public_health_alerts/2012/01/human_pha_detail_000050.jsp&mid=WC0b01ac058001d126. Accessed Oct 25 2012.

  11. Gilenya Full Prescribing Information. Novartis Pharmaceuticals Corporation. East Hanover, New Jersey; 2012.

  12. Calabresi PG, D, Jeffery D, Kappos L, Lublin FD, Rammohan K, Reder AT, Vollmer T, Agius MA, Cappiello L, Stites T, Li B, Malhotra M, von Rosenstiel P, Radue E-W, editors. Efficacy and safety of fingolimod versus placebo: primary outcomes from the phase 3 FREEDOMS II study in patients with relapsing–remitting multiple sclerosis (P491). ECTRIMS, Lyon, France; 2012.

  13. O’Connor PP, C, Hohlfeld R, Selmaj K, Olsson T, Agoropoulou C, Ritter S, Zhang-Auberson L, von Rosenstiel P, Kappos L, editors. Phase 3 FREEDOMS study extension: long-term safety of fingolimod (FTY720) in relapsing–remitting multiple sclerosis (P523). ECTRIMS, Lyon, France; 2012.

  14. Novartis. Novartis statement: Gilenya (fingolimod) safety information update. 2012. http://www.novartis.com/downloads/newsroom/product-related-info-center/statement-PML.pdf. Accessed Oct 25 2012.

  15. Centonze D, Rossi S, Rinaldi F, Gallo P. Severe relapses under fingolimod treatment prescribed after natalizumab. Neurology. 2012;79(19):2004–5.

    Article  PubMed  Google Scholar 

  16. Visser F, Wattjes MP, Pouwels PJ, Linssen WH, van Oosten BW. Tumefactive multiple sclerosis lesions under fingolimod treatment. Neurology. 2012;79(19):2000–3.

    Article  PubMed  Google Scholar 

  17. Gross CM, Baumgartner A, Rauer S, Stich O. Multiple sclerosis rebound following herpes zoster infection and suspension of fingolimod. Neurology. 2012;79(19):2006–7.

    Article  PubMed  Google Scholar 

  18. Ratchford JN, Costello K, Reich DS, Calabresi PA. Varicella-zoster virus encephalitis and vasculopathy in a patient treated with fingolimod. Neurology. 2012;79(19):2002–4.

    Article  PubMed  Google Scholar 

  19. Bourdette D, Gilden D. Fingolimod and multiple sclerosis: four cautionary tales. Neurology. 2012;79(19):1942–3.

    Article  PubMed  Google Scholar 

  20. European Medicines Agency. Pharmacovigilance Risk Assessment Committee (PRAC) Meeting Minutes. 2012. http://www.ema.europa.eu/docs/en_GB/document_library/Minutes/2012/12/WC500135712.pdf. Accessed Jan 25 2013.

  21. European Medicines Agency. Summary of product characteristics: fingolimod. 2012. http://www.ema.europa.eu/docs/en_GB/document_library/EPAR_-_Product_Information/human/002202/WC500104528.pdf. Accessed Jan 24 2013.

  22. Geissbuhler YB, H, Hernandez-Diaz S, Hellwig K, Koren G, MacDonald T, Tilson H, Starzyk K, Plana E, Cremer M, von Rosenstiel P, Anand D, Dong V, Schlosshauer R, Zhang X, editors. Pregnancy outcomes from fingolimod clinical trials and post-marketing experience and the need for a multinational Gilenya (fingolimod) pregnancy exposure registry in multiple sclerosis (Presentation 141). ECTRIMS, Lyon, France; 2012.

  23. Osiri M, Shea B, Robinson V, Suarez-Almazor M, Strand V, Tugwell P, et al. Leflunomide for treating rheumatoid arthritis. Cochrane Database Syst Rev. 2003;(1):CD002047. Epub 2003/01/22.

  24. Bruneau JM, Yea CM, Spinella-Jaegle S, Fudali C, Woodward K, Robson PA, et al. Purification of human dihydro-orotate dehydrogenase and its inhibition by A77 1726, the active metabolite of leflunomide. Biochem J. 1998;336(Pt 2):299–303.

    PubMed  CAS  Google Scholar 

  25. Cherwinski HM, Cohn RG, Cheung P, Webster DJ, Xu YZ, Caulfield JP, et al. The immunosuppressant leflunomide inhibits lymphocyte proliferation by inhibiting pyrimidine biosynthesis. J Pharmacol Exp Ther. 1995;275(2):1043–9.

    PubMed  CAS  Google Scholar 

  26. Fox RI, Herrmann ML, Frangou CG, Wahl GM, Morris RE, Strand V, et al. Mechanism of action for leflunomide in rheumatoid arthritis. Clin Immunol. 1999;93(3):198–208.

    Article  PubMed  CAS  Google Scholar 

  27. Ruckemann K, Fairbanks LD, Carrey EA, Hawrylowicz CM, Richards DF, Kirschbaum B, et al. Leflunomide inhibits pyrimidine de novo synthesis in mitogen-stimulated T-lymphocytes from healthy humans. J Biol Chem. 1998;273(34):21682–91.

    Article  PubMed  CAS  Google Scholar 

  28. Herrmann ML, Schleyerbach R, Kirschbaum BJ. Leflunomide: an immunomodulatory drug for the treatment of rheumatoid arthritis and other autoimmune diseases. Immunopharmacology. 2000;47(2–3):273–89.

    Article  PubMed  CAS  Google Scholar 

  29. Fairbanks LD, Bofill M, Ruckemann K, Simmonds HA. Importance of ribonucleotide availability to proliferating T-lymphocytes from healthy humans: disproportionate expansion of pyrimidine pools and contrasting effects of de novo synthesis inhibitors. J Biol Chem. 1995;270(50):29682–9.

    Article  PubMed  CAS  Google Scholar 

  30. Hoskin DW, Taylor RM, Makrigiannis AP, James H, Lee TD. Dose-dependent enhancing and inhibitory effects of A77 1726 (leflunomide) on cytotoxic T lymphocyte induction. Int J Immunopharmacol. 1998;20(9):505–13.

    Article  PubMed  CAS  Google Scholar 

  31. Korn T, Magnus T, Toyka K, Jung S. Modulation of effector cell functions in experimental autoimmune encephalomyelitis by leflunomide–mechanisms independent of pyrimidine depletion. J Leukoc Biol. 2004;76(5):950–60.

    Article  PubMed  CAS  Google Scholar 

  32. Manna SK, Mukhopadhyay A, Aggarwal BB. Leflunomide suppresses TNF-induced cellular responses: effects on NF-kappa B, activator protein-1, c-Jun N-terminal protein kinase, and apoptosis. J Immunol. 2000;165(10):5962–9.

    PubMed  CAS  Google Scholar 

  33. Siemasko K, Chong AS, Jack HM, Gong H, Williams JW, Finnegan A. Inhibition of JAK3 and STAT6 tyrosine phosphorylation by the immunosuppressive drug leflunomide leads to a block in IgG1 production. J Immunol. 1998;160(4):1581–8.

    PubMed  CAS  Google Scholar 

  34. Xu X, Williams JW, Bremer EG, Finnegan A, Chong AS. Inhibition of protein tyrosine phosphorylation in T cells by a novel immunosuppressive agent, leflunomide. J Biol Chem. 1995;270(21):12398–403.

    Article  PubMed  CAS  Google Scholar 

  35. Mattar T, Kochhar K, Bartlett R, Bremer EG, Finnegan A. Inhibition of the epidermal growth factor receptor tyrosine kinase activity by leflunomide. FEBS Lett. 1993;334(2):161–4.

    Article  PubMed  CAS  Google Scholar 

  36. Hamilton LC, Vojnovic I, Warner TD. A771726, the active metabolite of leflunomide, directly inhibits the activity of cyclo-oxygenase-2 in vitro and in vivo in a substrate-sensitive manner. Br J Pharmacol. 1999;127(7):1589–96.

    Article  PubMed  CAS  Google Scholar 

  37. O’Connor P, Wolinsky JS, Confavreux C, Comi G, Kappos L, Olsson TP, et al. Randomized trial of oral teriflunomide for relapsing multiple sclerosis. N Engl J Med. 2011;365(14):1293–303.

    Article  PubMed  Google Scholar 

  38. Kappos L, editor. The efficacy and safety of teriflunomide in patients with relapsing MS: results from TOWER, a phase III, placebo-controlled study (Presentation 153). ECTRIMS, Lyon, France; 2012.

  39. Vermersch P, editor. A multicenter, randomized, parallel-group, rater-blinded study comparing the effectiveness and safety of teriflunomide and subcutaneous interferon beta-1a in patients with relapsing multiple sclerosis. ACTRIMS, San Diego; 2012.

  40. Efficacy and safety of teriflunomide in patients with relapsing multiple sclerosis and treated with interferon-beta (TERACLES) updated 2012. http://clinicaltrials.gov/ct2/show/NCT01252355?term=teriflunomide&rank=3. Accessed Oct 30 2012.

  41. O’Connor PW, Li D, Freedman MS, Bar-Or A, Rice GP, Confavreux C, et al. A phase II study of the safety and efficacy of teriflunomide in multiple sclerosis with relapses. Neurology. 2006;66(6):894–900.

    Article  PubMed  Google Scholar 

  42. Confavreux C, Li DK, Freedman MS, Truffinet P, Benzerdjeb H, Wang D, et al. Long-term follow-up of a phase 2 study of oral teriflunomide in relapsing multiple sclerosis: safety and efficacy results up to 8.5 years. Mult Scler. 2012;18(9):1278–89. Epub 2012/02/07.

    Google Scholar 

  43. White H. A heteroskedasticity consistent covariance matrix estimator and a direct test for heteroscedasticity. Econometrica. 1980;48:817–30.

    Article  Google Scholar 

  44. Warnatz K, Peter HH, Schumacher M, Wiese L, Prasse A, Petschner F, et al. Infectious CNS disease as a differential diagnosis in systemic rheumatic diseases: three case reports and a review of the literature. Ann Rheum Dis. 2003;62(1):50–7.

    Article  PubMed  CAS  Google Scholar 

  45. Rahmlow M, Shuster EA, Dominik J, Deen HG Jr, Dickson DW, Aksamit AJ Jr, et al. Leflunomide-associated progressive multifocal leukoencephalopathy. Arch Neurol. 2008;65(11):1538–9.

    Article  PubMed  Google Scholar 

  46. Brent RL. Teratogen update: reproductive risks of leflunomide (Arava); a pyrimidine synthesis inhibitor: counseling women taking leflunomide before or during pregnancy and men taking leflunomide who are contemplating fathering a child. Teratology. 2001;63(2):106–12.

    Article  PubMed  CAS  Google Scholar 

  47. Fukushima R, Kanamori S, Hirashiba M, Hishikawa A, Muranaka RI, Kaneto M, et al. Teratogenicity study of the dihydroorotate-dehydrogenase inhibitor and protein tyrosine kinase inhibitor Leflunomide in mice. Reprod Toxicol. 2007;24(3–4):310–6.

    Article  PubMed  CAS  Google Scholar 

  48. Teriflunomide. Data on file; Sanofi. 2012.

  49. Chambers CD, Johnson DL, Robinson LK, Braddock SR, Xu R, Lopez-Jimenez J, et al. Birth outcomes in women who have taken leflunomide during pregnancy. Arthritis Rheum. 2010;62(5):1494–503.

    Article  PubMed  Google Scholar 

  50. Cassina M, Johnson DL, Robinson LK, Braddock SR, Xu R, Jimenez JL, et al. Pregnancy outcome in women exposed to leflunomide before or during pregnancy. Arthritis Rheumat. 2012;64(7):2085–94.

    Article  PubMed  CAS  Google Scholar 

  51. Kieseier Bea, editor. Pregnancy outcomes from the teriflunomide clinical development programme: retrospective analysis of the teriflunomide clinical trial database (P737). ECTRIMS, Lyon, France; 2012.

  52. Bar-Or A, editor. Effect of teriflunomide on immune responses to seasonal influenza vaccination in patients with relapsing multiple sclerosis: results from the TERIVA study (P925). ECTRIMS, Lyon, France; 2012.

  53. Moharregh-Khiabani D, Linker RA, Gold R, Stangel M. Fumaric acid and its esters: an emerging treatment for multiple sclerosis. Curr Neuropharmacol. 2009;7(1):60–4.

    Article  PubMed  CAS  Google Scholar 

  54. Reich K, Thaci D, Mrowietz U, Kamps A, Neureither M, Luger T. Efficacy and safety of fumaric acid esters in the long-term treatment of psoriasis—a retrospective study (FUTURE). J Dtsch Dermatol Ges. 2009;7(7):603–11.

    PubMed  Google Scholar 

  55. Asadullah K, Schmid H, Friedrich M, Randow F, Volk HD, Sterry W, et al. Influence of monomethylfumarate on monocytic cytokine formation–explanation for adverse and therapeutic effects in psoriasis? Arch Dermatol Res. 1997;289(11):623–30.

    Article  PubMed  CAS  Google Scholar 

  56. de Jong R, Bezemer AC, Zomerdijk TP, van de Pouw-Kraan T, Ottenhoff TH, Nibbering PH. Selective stimulation of T helper 2 cytokine responses by the anti-psoriasis agent monomethylfumarate. Eur J Immunol. 1996;26(9):2067–74.

    Article  PubMed  Google Scholar 

  57. Linker RA, Lee DH, Ryan S, van Dam AM, Conrad R, Bista P, et al. Fumaric acid esters exert neuroprotective effects in neuroinflammation via activation of the Nrf2 antioxidant pathway. Brain J Neurol. 2011;134(Pt 3):678–92.

    Article  Google Scholar 

  58. Lee JM, Calkins MJ, Chan K, Kan YW, Johnson JA. Identification of the NF-E2-related factor-2-dependent genes conferring protection against oxidative stress in primary cortical astrocytes using oligonucleotide microarray analysis. J Biol Chem. 2003;278(14):12029–38.

    Article  PubMed  CAS  Google Scholar 

  59. Osburn WO, Kensler TW. Nrf2 signaling: an adaptive response pathway for protection against environmental toxic insults. Mutat Res. 2008;659(1–2):31–9.

    PubMed  CAS  Google Scholar 

  60. Gold R, Kappos L, Arnold DL, Bar-Or A, Giovannoni G, Selmaj K, et al. Placebo-controlled phase 3 study of oral BG-12 for relapsing multiple sclerosis. N Engl J Med. 2012;367(12):1098–107.

    Article  PubMed  CAS  Google Scholar 

  61. Fox RJ, Miller DH, Phillips JT, Hutchinson M, Havrdova E, Kita M, et al. Placebo-controlled phase 3 study of oral BG-12 or glatiramer in multiple sclerosis. N Engl J Med. 2012;367(12):1087–97.

    Article  PubMed  CAS  Google Scholar 

  62. Kappos L, Gold R, Miller DH, Macmanus DG, Havrdova E, Limmroth V, et al. Efficacy and safety of oral fumarate in patients with relapsing-remitting multiple sclerosis: a multicentre, randomised, double-blind, placebo-controlled phase IIb study. Lancet. 2008;372(9648):1463–72.

    Article  PubMed  CAS  Google Scholar 

  63. Selmaj K, Fox RJ, Gold R, Havrdova E, Kappos L, Raghupathi K, Yuan H, Novas M, Sweetser MT, Viglietta V, Sheikh SI, Dawson KT, Phillips JT. Safety and tolerability of BG-12 in patients with relapsing–remitting multiple sclerosis: an integrated analysis of the placebo-controlled studies (P484). ECTRIMS, Lyon, France; 2012.

  64. Hoefnagel JJ, Thio HB, Willemze R, Bouwes Bavinck JN. Long-term safety aspects of systemic therapy with fumaric acid esters in severe psoriasis. Br J Dermatol. 2003;149(2):363–9.

    Article  PubMed  CAS  Google Scholar 

  65. Ermis U, Wiesmann M, Nolte K, Chan A, Adams O, Weis J, Schulz JB. Fumaric acid-associated progressive multifocal leukencephalopathy (PML), treatment and survival in a patient with psoriasis. Kongress der Deutschen Gesellschaft für Neurologie mit Fortbildungsakademie, Germany; 2011.

  66. van Oosten BW, Killestein J, Barkhof F, Polman CH, Wattjes MP. PML in a patient treated with dimethyl fumarate from a compounding pharmacy. N Engl J Med. 2013;368(17):1658–9.

    Article  PubMed  Google Scholar 

  67. Sweetser MT, Dawson KT, Bozic C. Manufacturer’s response to case reports of PML. N Engl J Med. 2013;368(17):1659–61.

    Article  PubMed  CAS  Google Scholar 

  68. Mrowietz U, Christophers E, Altmeyer P. Treatment of severe psoriasis with fumaric acid esters: scientific background and guidelines for therapeutic use. The German Fumaric Acid Ester Consensus Conference. Br J Dermatol. 1999;141(3):424–9.

    Article  PubMed  CAS  Google Scholar 

  69. Biogen-Idec. Fumaderm prescribing information. 2012. http://www.psoriasis-support.de/media/ms/on/gebrauchsinfo_fumaderm_initial_070228.pdf. Accessed Jan 25 2013.

  70. Wei QR, Runrong G, Xiangdong S, et al. Studies on teratogenicity of dimethyl fumarate. J Hyg Res. 1990;19:28–31.

    Google Scholar 

  71. Sheikh S, Nestorov I, Russell H, O’Gorman J, Huang R, Milne GL, Stecher S, Novas M, Dawson KT. Safety, tolerability, and pharmacokinetics of BG-12 administered with and without aspirin: key findings from a randomized, double-blind, placebo-controlled trial in healthy volunteers (P04.136). American Academy of Neurology; New Orleans, USA; 2012.

  72. Andersen O, Lycke J, Tollesson PO, Svenningsson A, Runmarker B, Linde AS, et al. Linomide reduces the rate of active lesions in relapsing-remitting multiple sclerosis. Neurology. 1996;47(4):895–900.

    Article  PubMed  CAS  Google Scholar 

  73. Noseworthy JH, Wolinsky JS, Lublin FD, Whitaker JN, Linde A, Gjorstrup P, et al. Linomide in relapsing and secondary progressive MS: part I: trial design and clinical results. North American Linomide Investigators. Neurology. 2000;54(9):1726–33.

    Article  PubMed  CAS  Google Scholar 

  74. Zou LP, Abbas N, Volkmann I, Nennesmo I, Levi M, Wahren B, et al. Suppression of experimental autoimmune neuritis by ABR-215062 is associated with altered Th1/Th2 balance and inhibited migration of inflammatory cells into the peripheral nerve tissue. Neuropharmacology. 2002;42(5):731–9.

    Article  PubMed  CAS  Google Scholar 

  75. Linker R, Thone J, Comi G, Gold R. Laquinimod induces up-regulation of neurotrophins in serum of patients with relapsing-remitting multiple sclerosis (P783). ECTRIMS, Dusseldorf, Germany; 2009.

  76. Comi G, Jeffery D, Kappos L, Montalban X, Boyko A, Rocca MA, et al. Placebo-controlled trial of oral laquinimod for multiple sclerosis. N Engl J Med. 2012;366(11):1000–9.

    Article  PubMed  CAS  Google Scholar 

  77. BRAVO Study: laquinimod double blind placebo controlled study in RRMS patients with a rater blinded reference arm of interferon β-1a (Avonex). http://clinicaltrials.gov/ct2/show/NCT00605215?term=laquinimod+and+BRAVO&rank=1. Accessed Oct 24 2012.

  78. Reuters. Results of phase III bravo trial reinforce unique profile of laquinimod for multiple sclerosis treatment. 2011. http://www.reuters.com/article/2011/08/01/idUS120582+01-Aug-2011+HUG20110801. Accessed Oct 24 2012.

  79. Comi G, Pulizzi A, Rovaris M, Abramsky O, Arbizu T, Boiko A, et al. Effect of laquinimod on MRI-monitored disease activity in patients with relapsing-remitting multiple sclerosis: a multicentre, randomised, double-blind, placebo-controlled phase IIb study. Lancet. 2008;371(9630):2085–92.

    Article  PubMed  CAS  Google Scholar 

  80. Comi G, Vollmer T, Sorensen S, Arnold D, Filippi M, Statinov O, Kobys T, Becker E, Jeffery D, Montalban X, Kappos L, Boyko A, Selmaj K, Zipp F, Havrdova E, Cohen J. Pooled analyses from the ALLEGRO and BRAVO trials on the safety and tolerability of laquinimod as a multiple sclerosis treatment (P04.132). American Academy of Neurology, New Orleans, USA; 2012.

  81. Björk A, Jonsson S, Fex T, Hedlund G. Quinoline derivatives. Patent 6593343, USA. 2003. http://patents.com/us-6593343.html. Accessed Jan 25 2013.

  82. Giovannoni G, Comi G, Cook S, Rammohan K, Rieckmann P, Soelberg Sorensen P, et al. A placebo-controlled trial of oral cladribine for relapsing multiple sclerosis. N Engl J Med. 2010;362(5):416–26.

    Article  PubMed  CAS  Google Scholar 

  83. O’Connor PW, Goodman A, Kappos L, Lublin FD, Miller DH, Polman C, et al. Disease activity return during natalizumab treatment interruption in patients with multiple sclerosis. Neurology. 2011;76(22):1858–65.

    Article  PubMed  Google Scholar 

  84. Havla J, Gerdes LA, Meinl I, Krumbholz M, Faber H, Weber F, et al. De-escalation from natalizumab in multiple sclerosis: recurrence of disease activity despite switching to glatiramer acetate. J Neurol. 2011;258(9):1665–9.

    Article  PubMed  CAS  Google Scholar 

  85. Rossi S, Motta C, Studer V, De Chiara V, Barbieri F, Monteleone F, et al. Effect of glatiramer acetate on disease reactivation in MS patients discontinuing natalizumab. Eur J Neurol. 2013;20(1):87–94.

    Article  PubMed  CAS  Google Scholar 

  86. Fox R, Kappos L, Cree B, Kaufman M, Jeffery D, Weinstock-Guttman B, Hartung H-P, Gold R, Montalban X, De Seze J, Natarajan A, Morse R, Ticho B, Duda P. Effects of a 24-week natalizumab treatment interruption on clinical and radiologic parameters of multiple sclerosis disease activity: the RESTORE study (Presenation 150). ECTRIMS, Amsterdam, The Netherlands; 2011.

  87. Rinaldi F, Seppi D, Calabrese M, Perini P, Gallo P. Switching therapy from natalizumab to fingolimod in relapsing-remitting multiple sclerosis: clinical and magnetic resonance imaging findings. Mult Scler. 2012;18(11):1640–3.

    Article  PubMed  CAS  Google Scholar 

  88. Sempere AP, Martin-Medina P, Berenguer-Ruiz L, Perez-Carmona N, Sanchez-Perez R, Polache-Vengud J, et al. Switching from natalizumab to fingolimod: an observational study. Acta Neurologica Scandinavica. 2013. Epub 2013/01/23.

  89. Oh J, O’Connor PW. An update of teriflunomide for treatment of multiple sclerosis. Ther Clin Risk Manag. 2013;9:1–13.

    Google Scholar 

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Disclosures

Dr. Jiwon Oh has received consulting fees from EMD-Serono, Biogen-IDEC, and Genzyme. Dr. Paul O’Connor has received personal compensation (for consulting, serving on a scientific advisory board, or speaking) or grant support (for scholarly activities) from pharmaceutical companies that develop products for MS, including Actelion, Biogen Idec, Celgene, Genzyme, Sanofi-Aventis, EMD Merck Serono, Abbott Labs, Teva Pharmaceuticals, Bayer, Genentech, Lilly, Roche, and Novartis. Dr. O’Connor receives consultation fees from the MS Society of Canada.

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Dr. Jiwon Oh and Dr. O’Connor have received grant support from the MS Society of Canada.

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Oh, J., O’Connor, P.W. Safety, Tolerability, and Efficacy of Oral Therapies for Relapsing-Remitting Multiple Sclerosis. CNS Drugs 27, 591–609 (2013). https://doi.org/10.1007/s40263-013-0080-z

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