Lomitapide mesylate (AEGR733 mesylate; BMS201038; Juxtapid; Lojuxta), the mesylate salt of Lomitapide, is a microsomal triglyceride-transfer protein (MTP) inhibitor that has been approved by FDA as a lipid-lowering agent to treat homozygous familial hypercholesterolemia. It inhibits MTP with an IC50 of 8 nM in vitro.

Physicochemical Properties

Molecular Formula	C39H37F6N3O2.XCH4O3S
Molecular Weight	789.82604
Exact Mass	789.267
CAS #	202914-84-9
Related CAS #	Lomitapide;182431-12-5
PubChem CID	11274333
Appearance	White to off-white solid powder
LogP	10.319
Hydrogen Bond Donor Count	3
Hydrogen Bond Acceptor Count	12
Rotatable Bond Count	10
Heavy Atom Count	55
Complexity	1200
Defined Atom Stereocenter Count	0
InChi Key	QKVKOFVWUHNEBX-UHFFFAOYSA-N
InChi Code	InChI=1S/C39H37F6N3O2.CH4O3S/c40-38(41,42)25-46-36(50)37(33-13-5-3-10-30(33)31-11-4-6-14-34(31)37)21-7-8-22-48-23-19-28(20-24-48)47-35(49)32-12-2-1-9-29(32)26-15-17-27(18-16-26)39(43,44)45;1-5(2,3)4/h1-6,9-18,28H,7-8,19-25H2,(H,46,50)(H,47,49);1H3,(H,2,3,4)
Chemical Name	N-(2,2,2-trifluoroethyl)-9-(4-(4-(4'-(trifluoromethyl)-[1,1'-biphenyl]-2-carboxamido)piperidin-1-yl)butyl)-9H-fluorene-9-carboxamide methanesulfonate
Synonyms	BMS 201038; AEGR733; AEGR-733; BMS-201038; BMS201038; AEGR 733; BMS 201038-01. Lomitapide mesylate. Brand name: Juxtapid; Lojuxta.
HS Tariff Code	2934.99.9001
Storage	Powder-20°C 3 years 4°C 2 years In solvent -80°C 6 months -20°C 1 month Note: Please store this product in a sealed and protected environment, avoid exposure to moisture.
Shipping Condition	Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)

Biological Activity

Targets	IC50: 8 nM (MTP)[1]
ln Vitro	Lomitapide is an oral microsomal triglyceride transfer protein (MTP) inhibitor indicated for the treatment of patients with HoFH, a rare form of hypercholesterolemia that can lead to premature atherosclerotic disease. Lomitapide undergoes hepatic metabolism via cytochrome P-450 (CYP) isoenzyme 3A4 and interacts with CYP3A4 substrates including atorvastatin and simvastatin[2].
ln Vivo	The use of lomitapide alone or in combination with other lipid-lowering modalities reduces plasma concentrations of low density lipoprotein cholesterol (LDL-C) by a mean of more than 50%. Lomitapide is associated with significant gastrointestinal adverse effects and increases in hepatic fat levels. The bioavailability of the 50-mg lomitapide capsule is 7.1%. The mean half-life of lomitapide is 39.7 hours[2]. Single-dose administration of lomitapide is shown to reduce serum triglycerides by 35% and 47% at 0.3- and 1-mg/kg doses, respectively. Multiple-dose treatment with lomitapide also results in dose dependent decrease in triglycerides (71%–87%), nonesterified fattyacids(33%–40%), and LDL-C(26-29%)[3].
References	Am J Health Syst Pharm. 2014 Jun 15;71(12):1001-8.
Additional Infomation	Lomitapide mesylate is a methanesulfonate (mesylate) salt prepared from equimolar amounts of lomitapide and methanesulfonic acid. Used as a complement to a low-fat diet and other lipid-lowering treatments in patients with homozygous familial hypercholesterolemia. It has a role as an anticholesteremic drug and a MTP inhibitor. It contains a lomitapide(1+). Lomitapide Mesylate is a methanesulfonic acid form of lomitapide, a small molecule inhibitor of microsomal triglyceride transfer protein. See also: Lomitapide (has active moiety).

Solubility Data

Solubility (In Vitro)

DMSO : ~100 mg/mL (~126.61 mM)

Solubility (In Vivo)

Solubility in Formulation 1: ≥ 2.5 mg/mL (3.17 mM) (saturation unknown) in 10% DMSO + 40% PEG300 + 5% Tween80 + 45% Saline (add these co-solvents sequentially from left to right, and one by one), clear solution. For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear DMSO stock solution to 400 μL PEG300 and mix evenly; then add 50 μL Tween-80 to the above solution and mix evenly; then add 450 μL normal saline to adjust the volume to 1 mL. Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH₂ O to obtain a clear solution. Solubility in Formulation 2: ≥ 2.5 mg/mL (3.17 mM) (saturation unknown) in 10% DMSO + 90% (20% SBE-β-CD in Saline) (add these co-solvents sequentially from left to right, and one by one), clear solution. For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear DMSO stock solution to 900 μL of 20% SBE-β-CD physiological saline solution and mix evenly. Preparation of 20% SBE-β-CD in Saline (4°C，1 week): Dissolve 2 g SBE-β-CD in 10 mL saline to obtain a clear solution. Solubility in Formulation 3: ≥ 2.5 mg/mL (3.17 mM) (saturation unknown) in 10% DMSO + 90% Corn Oil (add these co-solvents sequentially from left to right, and one by one), clear solution. For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear DMSO stock solution to 900 μL of corn oil and mix evenly.  (Please use freshly prepared in vivo formulations for optimal results.)

Preparing Stock Solutions		1 mg	5 mg	10 mg
	1 mM	1.2661 mL	6.3305 mL	12.6610 mL
	5 mM	0.2532 mL	1.2661 mL	2.5322 mL
	10 mM	0.1266 mL	0.6330 mL	1.2661 mL

*Note: Please select an appropriate solvent for the preparation of stock solution based on your experiment needs. For most products, DMSO can be used for preparing stock solutions (e.g. 5 mM, 10 mM, or 20 mM concentration); some products with high aqueous solubility may be dissolved in water directly. Solubility information is available at the above Solubility Data section. Once the stock solution is prepared, aliquot it to routine usage volumes and store at -20°C or -80°C. Avoid repeated freeze and thaw cycles.