Utah Medicaid Pharmacy and Therapeutics Committee Drug
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Utah Medicaid Pharmacy and Therapeutics Committee Drug Class Review Agents for the Treatment of Multiple Sclerosis Oral Medications: Cladribine (Mavenclad) Dalfampridine (Ampyra, generic) Dimethyl fumarate (Tecfidera) Diroximel fumarate (Vumerity) Fingolimod (Gilenya) Siponimod (Mayzent) Teriflunomide (Aubagio) Subcutaneous and Intramuscular Medications: Glatiramer acetate (Copaxone, Glatopa, generic) Interferon beta-1a (Avonex, Rebif) Interferon beta-1b (Betaseron, Extavia) Peginterferon beta-1a (Plegridy) Intravenous Medications: Alemtuzumab (Lemtrada) Mitoxantrone (generic) Natalizumab (Tysabri) Ocrelizumab (Ocrevus) Report finalized October 2019 Report presented November 2019 Review prepared by: Elena Martinez Alonso, B.Pharm., MSc MTSI, Medical Writer Lauren Heath, Pharm.D., MS, BCACP, Assistant Professor (Clinical) Valerie Gonzales, Pharm.D., Clinical Pharmacist Vicki Frydrych, B.Pharm., Pharm.D., Clinical Pharmacist Joanne LaFleur, PharmD, MSPH, Associate Professor University of Utah College of Pharmacy University of Utah College of Pharmacy, Drug Regimen Review Center Copyright © 2019 by University of Utah College of Pharmacy Salt Lake City, Utah. All rights reserved Contents Executive Summary ......................................................................................................................... 3 Introduction .................................................................................................................................... 8 Table 1. Key Characteristics of Multiple Sclerosis Agents ...................................................... 9 Table 2. Detailed Characteristics of Multiple Sclerosis Agents ............................................. 10 Methods ........................................................................................................................................ 13 Disease Overview .......................................................................................................................... 14 Table 3. The 2017 revision of the 2010 McDonald Criteria for Diagnosis of Multiple Sclerosis................................................................................................................................. 15 Guidelines Recommendations ...................................................................................................... 17 Table 4. Treatment Guideline Recommendations for Multiple Sclerosis in Adults ............. 18 Pharmacology & Special Populations ........................................................................................... 20 Table 5. Mechanism of Action of Multiple Sclerosis Agents ................................................ 21 Table 6. Pharmacokinetic Parameters .................................................................................. 24 Table 7. Special Population Considerations .......................................................................... 25 Direct Comparative Evidence ........................................................................................................ 28 Figure 1. PRISMA Flow Chart for Publication Screening ....................................................... 28 Figure 2. Systematic Reviews Included to Describe the Comparative Efficacy Among Disease-Modifying Agents .................................................................................................... 29 Safety ............................................................................................................................................ 36 Table 8. Warnings and Precautions for Disease-Modifying Agents ..................................... 39 Table 9. Common Adverse Reactions and Monitoring Requirements ................................. 42 Summary ....................................................................................................................................... 44 References .................................................................................................................................... 45 Appendix A – Literature Search Strategies ................................................................................... 49 Appendix B – Included and Excluded References ......................................................................... 55 Appendix C – Evidence from Systematic Reviews of Multiple Sclerosis Agents .......................... 59 Appendix D. Randomized Controlled Trials Included in the Selected Systematic Reviews for Multiple Sclerosis .......................................................................................................................... 65 2 Executive Summary Introduction: Multiple sclerosis (MS) is an inflammatory, autoimmune disease of the central nervous system (CNS) characterized by demyelination and axonal damage. MS is classified into 3 main phenotypes including relapsing-remitting MS (RRMS), primary progressive MS (PPMS), and secondary progressive MS (SPMS), with RRMS being the most common. A clinically isolated syndrome (CIS) is the first neurological episode in patients not known to have MS. Disease-modifying therapies (DMTs) aim to reduce disease activity and progression of disability in patients with MS. Interferon (IFN) therapy and glatiramer acetate were the standard of care for treating relapsing forms of MS in the United States for more than 20 years. During the last decade, an increasing number of injectable and oral DMTs has been approved providing multiple treatment options for adults with MS. Currently, 14 DMTs and 1 non-DMT are available for the treatment of MS including oral DMTs (cladribine, dimethyl fumarate, diroximel fumarate, fingolimod, siponimod, and teriflunomide), subcutaneous (SQ) and intramuscular (IM) DMTs (glatiramer acetate, interferon beta-1a, interferon beta-1b, and pegylated interferon beta-1a), intravenous (IV) DMTs (alemtuzumab, mitoxantrone, natalizumab, and ocrelizumab), and the oral non- DMT, dalfampridine. Each DMT is approved by the U.S. Food and Drug Administration (FDA) for the treatment of adult patients with relapsing forms of MS including RRMS and active SPMS. In addition, each DMT except alemtuzumab, cladribine, and mitoxantrone is approved for patients with CIS. Ocrelizumab is the only agent approved for PPMS in adults. Fingolimod is the only agent approved for use in the pediatric population (10 years of age or older) with relapsing forms of MS. Due to safety concerns, labeling information for cladribine and alemtuzumab recommends their use only in patients who have had an inadequate response or are intolerant to other drugs indicated for the treatment of MS. The single, non-DMT, dalfampridine, is an oral medication approved for walking improvement in patients with MS. Interferons and the humanized monoclonal antibodies alemtuzumab, natalizumab, and ocrelizumab are biologic products produced by recombinant DNA techniques. Cladribine, dalfampridine, dimethyl fumarate, diroximel fumarate, fingolimod, glatiramer acetate, siponimod, teriflunomide, and mitoxantrone are synthetic drugs. For maintenance dosing, the oral DMTs may be administered once daily (fingolimod, siponimod, teriflunomide) or twice daily (dimethyl fumarate and diroximel fumarate). Cladribine administration includes 2 treatment courses 43 weeks apart. Regarding self-injectable DMTs, glatiramer acetate can be administered daily or 3 times weekly. The interferons are administered once weekly to every other day, with the exception of peg-interferon, administered once every 14 days. The intravenous DMTs are administered every 4 weeks (natalizumab), 3 months (mitoxantrone), or 6 months (ocrelizumab). Alemtuzumab is administered in treatment courses (3 to 5 days long), separated by 12 months apart. The recommended maintenance dosing frequency is twice daily for the non-DMT agent, dalfampridine. The 2018 American Academy of Neurology (AAN) guideline for the treatment of MS recommends offering treatment with DMT to patients with 1 demyelinating event and at least 2 brain lesions consistent with MS, and to patients with relapsing forms of MS who experienced recent relapses or magnetic resonance imaging (MRI) lesion activity. For people with CIS, clinicians may recommend close monitoring rather than starting DMT. Guideline authors provide a moderate recommendation for the use of alemtuzumab, fingolimod, or natalizumab in patients with highly active MS (though no standard definition is currently available for highly active MS). The risk-benefit balance associated with each treatment approach should be evaluated on an individualized basis. Treatment initiation with 3 natalizumab requires consideration of the John Cunningham virus (JCV) antibody status and the potential risk for progressive multifocal leukoencephalopathy (PML). A moderate recommendation is provided for use of ocrelizumab in ambulatory patients with primary progressive multiple sclerosis (PPMS). Mitoxantrone therapy should only be offered to MS patients when the benefits greatly outweigh the risks. DMTs are not recommended for use during pregnancy unless benefits of treatment outweigh potential risks. The 2 recently approved DMTs (diroximel fumarate and siponimod) are not included in the AAN guideline. The aim of this report is to provide evidence from systematic reviews (SRs) and randomized controlled trials (RCTs) of head-to-head efficacy and safety comparisons among the MS agents, at their FDA- approved dosages. Comparative Efficacy Evidence: Following a systematic literature search in Ovid-Medline and Embase for direct head-to-head