Mechanisms of Action for S1P Receptor Modulators 1-7 Full abbreviations, accreditation, and disclosure information available at PeerView.com/VTT40 a Investigational agent. S1P Receptor Specificity of Approved and Emerging S1P Receptor Modulators Available/ Investigational S1P Receptor Modulators Fingolimod Siponimod Ozanimod Ponesimod a Approved Emerging S1P1 recycles and surface expression recovers in low S1P Lymphocyte egress driven by S1P gradient Lymphocytes enter lymphoid organ from blood S1P receptor modulator binds S1P1 and induces sustained S1P1 internalization and degradation, preventing lymphocyte egress S1P1 mostly internalized because of high S1P Blood Lymphocyte S1P1 Egress Lymph Secondary lymphoid organs S1P receptor modulator Low S1P High S1P S1P1 P P P P S1P2 O O O O S1P3 P O O O S1P4 P O O O S1P5 P P P O S1P Receptor Modulators Improve MS by Isolating Lymphocytes
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Mechanisms of Action for S1P Receptor Modulators1-7
Full abbreviations, accreditation, and disclosure information available at PeerView.com/VTT40
a Investigational agent.
S1P Receptor Specificity of Approved and Emerging S1P Receptor Modulators
Available/Investigational S1P
Receptor Modulators
Fingolimod
Siponimod
Ozanimod
Ponesimoda
App
rove
dEm
ergi
ng
S1P1 recycles and surface expression recovers in low S1P
Lymphocyte egress driven by
S1P gradientLymphocytes enter
lymphoid organ from blood
S1P receptor modulator binds S1P1 and induces sustained S1P1 internalization and degradation, preventing lymphocyte egress
S1P1 mostly internalized because
of high S1P
Blood
Lymphocyte
S1P1Egress
LymphSecondary lymphoid organs
S1P receptor modulator
Low S1P
High S1P
S1P1
P
P
P
P
S1P2
O
O
O
O
S1P3
P
O
O
O
S1P4
P
O
O
O
S1P5
P
P
P
O
S1P Receptor Modulators Improve MS by Isolating Lymphocytes
Mechanisms of Action for S1P Receptor Modulators1-7
Full abbreviations, accreditation, and disclosure information available at PeerView.com/VTT40
1. Cohan S et al. Biomedicines. 2020;8:227. 2. Obinata H, Hla T. Int Immunol. 2019;31:617-625. 3. Choi J, Chun J. Biochim Biophys Acta. 2013;1831:20-32. 4. Chaudhry BZ et al. Neurotherapeutics. 2017;14:859-873. 5. Meissner A et al. Cardiovasc Res. 2017;113:123-133. 6. Dillmann C et al. J Immunol. 2016;196:1579-1590. 7. Kulinski JM et al. Int J Mol Sci. 2018;19:1279.
S1P Receptor Subtype
Loca
lizat
ion
and
Func
tion
of S
1P R
ecep
tors
in
the
Cont
ext o
f MS
Care
S1P1 S1P2 S1P3 S1P4 S1P5
Neurons (function, migration), astrocytes
(activation), microglia,
oligodendrocytes
Activation may contribute to
macular edema, decreased retinal
cell death
Neurons, astrocytes, microglia,
oligodendrocytes
Activation may contribute to HTN, pathological retinal
Practical Clinical Considerations With the Use of S1P Receptor Modulators in Patients With MS1-4
Full abbreviations, accreditation, and disclosure information available at PeerView.com/VTT40
Pharmacokinetics/Pharmacodynamics of S1P Receptor Modulators: Implications for Clinical Care
Practical Aspects of Use: Monitoring and Titration
Assessments
• All agents: CBC, cardiac evaluation, liver function, medications, vaccinations
• Ophthalmic assessment: all agents (for ozanimod, only in patients with certain conditionse)
• CYP2C9 genotype: siponimod
Titrationd
Siponimod, ozanimod (per prescribing information)
First-Dose Monitoringd
Siponimod (patients with certain conditionsf),
fingolimod
S1P Receptor Modulators T1/2 Elimination Median Recovery Timeto Normal Lymphocyte Count
Fingolimod 6-9 da 1-2 months
Siponimod 30 h 10 days, but up to 3-4 weeks for some patients
Ozanimod CC112273b
21 h11 d 30 daysc
Ponesimod (investigational) 21-33 h 4 days
a Increased by 50% in patients with moderate to severe heart disease. b Major ozanimod active metabolite. c Ninety percent recovery to baseline lymphocyte count within 3 months. d Also on reinitiation following treatment interruption. e For ozanimod, requirement for pre-initiation assessment is specific to patients with a history of uveitis or macular edema. f Sinus bradycardia, Mobitz type I AV block, history of MI or HF.
• Recent (last 6 months): MI, unstable angina, TIA, decompensated HF with hospitalization, class III/IV HF• History (fingolimod) or presence (siponimod, ozanimod) of Mobitz type 2 second- or third-degree AV block or sick sinus
syndrome, unless patient has a pacemaker
Fingolimod
• BL QTc interval ≥500 msec• Arrhythmias needing treatment with class Ia or class III antiarrhythmic agents
Ozanimod
• Severe untreated sleep apnea• Concomitant MAOI use
Imaging Outcomes of S1P Receptor Modulators in Patients With MS1-8
Full abbreviations, accreditation, and disclosure information available at PeerView.com/VTT40
1. Kappos L et al. N Engl J Med. 2010;362:387-401. 2. Calabresi PA et al. Lancet Neurol. 2014;13:545-556. 3. Cohen JA et al. N Engl J Med. 2010;362:402-415. 4. Kappos L et al. Lancet. 2018;391:1263-1273. 5. Comi G et al. Lancet Neurol. 2019;18:1009-1020. 6. Cohen JA et al. Lancet Neurol. 2019;18:1021-1033. 7. Gaetan L et al. Neurology. 2018;0:e1-e9. 8. Kappos L et al. MSVirtual 2020. Poster P0071.
Less Brain Volume Loss With Ozanimod Versus IFN β-1a:Phase 3 Clinical Trials
Less Brain Volume Loss With Ponesimod Versus Teriflunomide:Phase 3 Clinical Trial
Similar changes have been reported for siponimod vs placebo in SPMS(-0.71% vs -0.84% at 24 weeks; P < .05)