Siponimod (BAF312)

BAF312 (Siponimod) is a next-generation S1P receptor agonist, selective for S1P1 and S1P5 receptors with EC50 of 0.39 nM and 0.98 nM, exhibits >1000-fold selectivity over S1P2, S1P3 and S1P4 receptors. Phase 3.

Siponimod (BAF312) Chemical Structure

Siponimod (BAF312) Chemical Structure

CAS No. 1230487-00-9

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Siponimod (BAF312) Related Products

Cell Data

Cell Lines Assay Type Concentration Incubation Time Formulation Activity Description PMID
CHO Function assay 120 mins Agonist activity at human S1P1 receptor transfected in CHO cells incubated for 10 to 15 mins prior to GTPgamma35S addition measured after 120 mins by GTPgamma35S binding assay, EC50=0.0004μM 24900670
CHO Function assay Agonist activity at human S1P5 receptor expressed in CHO cells by [35S]GTPgammaS binding assay, EC50=0.00098μM 24125884
CHO Function assay Agonist activity at human S1P4 receptor expressed in CHO cells by [35S]GTPgammaS binding assay, EC50=0.75μM 24125884
CHO Function assay 120 mins Agonist activity at human S1P3 receptor transfected in CHO cells incubated for 10 to 15 mins prior to GTPgamma35S addition measured after 120 mins by GTPgamma35S binding assay, EC50=5μM 24900670
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Biological Activity

Description BAF312 (Siponimod) is a next-generation S1P receptor agonist, selective for S1P1 and S1P5 receptors with EC50 of 0.39 nM and 0.98 nM, exhibits >1000-fold selectivity over S1P2, S1P3 and S1P4 receptors. Phase 3.
Targets
S1P1 receptor [1] S1P5 receptor [1]
0.39 nM(EC50) 0.98 nM(EC50)
In vitro
In vitro BAF312 (Siponimod) is a potent and selective S1P receptor agonist, with EC50 of 0.39 nM and 0.98 nM for S1P1 and S1P5receptors, exhibits >1000-fold selectivity over S1P2, S1P3 and S1P4 receptors. [1]BAF312 (1 h at 1 μM) promotes prominent internalization of S1P1 receptors by 91%.[2]
Kinase Assay GTPγ[35S] binding assay
The cells are homogenized and centrifuged at 26900 × g for 30 min at 4°C. Membranes are re-suspended in 20 mM HEPES (pH 7.4), 100 mM NaCl, 10 mM MgCl2, 1 mM EDTA and 0.1% fat-free BSA at 2–3 mg protein/mL. GTPγ[35S] binding assay is performed with the membranes (75 mg protein /mL in 50 mM HEPES, 100 mM NaCl, 10 mM MgCl2, 20 μg/mL saponin and 0.1% fat-free BSA (pH 7.4), 5 mg/mL with wheat-germ agglutinin-coated scintillation proximity assay-bead, and 10 μM GDP for 10–15 min. The GTPγ[35S]-binding reaction is started by the addition of 200 pM GTPγ[35S]. After 120 min at room temperature, the plates are centrifuged for 10 min at 300 × g and counted.
Cell Research Cell lines CHO
Concentrations ~1 μM
Incubation Time 1 h
Method Agonist-mediated internalization of S1P1 receptors in CHO cells analysed by flow cytometry Myc-tag hS1P1 cells are incubated for 1 h with agonist at 37°C in standard culture medium followed by a PBS wash. An aliquot is kept on ice for 3 h, while another aliquot is left for 3 (or 12) h in culture medium (no agonist) at 37°C. The cells are then incubated either with 4 μg/mL monoclonal mouse anti C-myc IgG1 antibody or with isotype control mouse IgG1 for 60 min at 4°C, followed by an incubation with 1 μg/mL of Alexa488-labelled goat anti-mouse secondary conjugates. The cells are subjected to flow cytometry measurements using 10000 viable cells per sample.
Experimental Result Images Methods Biomarkers Images PMID
Western blot p-ERK / ERK / p-AKT / AKT 26856814
Immunofluorescence Vimentin / S1PR1 26856814
In Vivo
In vivo BAF312 effectively suppresses encephalomyelitis (EAE) in rats by internalizing S1P1 receptors, rendering them insensitive to the egress signal from lymph nodes. [1] BAF312 significantly reduces clinical scores when dosed prophylactically or therapeutically in mice at 0.3 mg/kg. [3]
Animal Research Animal Models encephalomyelitis (EAE) model rat
Dosages 0.03, 0.3 and 3 mg/kg
Administration oral gavage
NCT Number Recruitment Conditions Sponsor/Collaborators Start Date Phases
NCT05376579 Active not recruiting
Active Secondary Progressive Multiple Sclerosis
Novartis Pharmaceuticals|Novartis
June 17 2022 --
NCT04895202 Terminated
Secondary Progressive Multiple Sclerosis With Inflammatory Disease Activity
Novartis Pharmaceuticals|Novartis
November 19 2021 --
NCT05826028 Completed
Secondary Progressive Multiple Sclerosis
Novartis Pharmaceuticals|Novartis
July 9 2020 --
NCT02029274 Terminated
Active Dermatomyositis
Novartis Pharmaceuticals|Novartis
August 25 2013 Phase 2

Chemical Information & Solubility

Molecular Weight 516.6 Formula

C29H35F3N2O3

CAS No. 1230487-00-9 SDF Download Siponimod (BAF312) SDF
Smiles CCC1=C(C=CC(=C1)C(=NOCC2=CC(=C(C=C2)C3CCCCC3)C(F)(F)F)C)CN4CC(C4)C(=O)O
Storage (From the date of receipt)

In vitro
Batch:

DMSO : 100 mg/mL ( (193.57 mM) Moisture-absorbing DMSO reduces solubility. Please use fresh DMSO.)

Ethanol : 25 mg/mL

Water : Insoluble


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