GLUSTAT SERIES

GLUSTAT SERIES

1  ELIGLUSTAT
2 MIGLUSTAT





1 ELIGLUSTAT

Genzyme’s Cerdelga NDA receives US FDA priority review designationpharmabiz.comThe US Food and Drug Administration (FDA) has granted a six-month Priority Review designation to Genzyme’s New Drug Application (NDA) for Cerdelga (eliglustat), an investigational oral therapy for adult patients with Gaucher disease

ELIGLUSTAT TARTRATE

THERAPEUTIC CLAIM Treatment of lysosomal storage disorders

CHEMICAL NAMES

1. Octanamide, N-[(1R,2R)-2-(2,3-dihydro-1,4-benzodioxin-6-yl)-2-hydroxy-1-(1-
pyrrolidinylmethyl)ethyl]-, (2R,3R)-2,3-dihydroxybutanedioate (2:1)

2. bis{N-[(1R,2R)-2-(2,3-dihydro-1,4-benzodioxin-6-yl)-2-hydroxy-1-(pyrrolidin-1-
ylmethyl)ethyl]octanamide} (2R,3R)-2,3-dihydroxybutanedioate

MOLECULAR FORMULA C23H36N2O4 . ½ C4H6O6

MOLECULAR WEIGHT 479.6

MANUFACTURER Genzyme Corp.

CODE DESIGNATION Genz-112638

CAS REGISTRY NUMBER 928659-70-5

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Genzyme Announces Positive New Data from Two Phase 3 Studies for Oral Eliglustat Tartrate for Gaucher Disease

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Eliglustat tartrate (USAN)

CAS:928659-70-5

February 15, 2013

Genzyme , a Sanofi company (EURONEXT: SAN and NYSE: SNY), today announced positive new data from the Phase 3 ENGAGE and ENCORE studies of eliglustat tartrate, its investigational oral therapy for Gaucher disease type 1. The results from the ENGAGE study were presented today at the 9th Annual Lysosomal Disease Network WORLD Symposium in Orlando, Fla. In conjunction with this meeting, Genzyme also released topline data from its second Phase 3 study, ENCORE. Both studies met their primary efficacy endpoints and together will form the basis of Genzyme’s registration package for eliglustat tartrateThe data presented at this year’s WORLD symposium reinforce our confidence that eliglustat tartrate may become an important oral option for patients with Gaucher disease”The company is developing eliglustat tartrate, a capsule taken orally, to provide a convenient treatment alternative for patients with Gaucher disease type 1 and to provide a broader range of treatment options for patients and physicians. Genzyme’s clinical development program for eliglustat tartrate represents the largest clinical program ever focused on Gaucher disease type 1 with approximately 400 patients treated in 30 countries.“The data presented at this year’s WORLD symposium reinforce our confidence that eliglustat tartrate may become an important oral option for patients with Gaucher disease,” said Genzyme’s Head of Rare Diseases, Rogerio Vivaldi MD. “We are excited about this therapy’s potential and are making excellent progress in our robust development plan for bringing eliglustat tartrate to the market.”ENGAGE Study Results:In ENGAGE, a Phase 3 trial to evaluate the safety and efficacy of eliglustat tartrate in 40 treatment-naïve patients with Gaucher disease type 1, improvements were observed across all primary and secondary efficacy endpoints over the 9-month study period. Results were reported today at the WORLD Symposium by Pramod Mistry, MD, PhD, FRCP, Professor of Pediatrics & Internal Medicine at Yale University School of Medicine, and an investigator in the trial.

The randomized, double-blind, placebo-controlled study had a primary efficacy endpoint of improvement in spleen size in patients treated with eliglustat tartrate. Patients were stratified at baseline by spleen volume. In the study, a statistically significant improvement in spleen size was observed at nine months in patients treated with eliglustat tartrate compared with placebo. Spleen volume in patients treated with eliglustat tartrate decreased from baseline by a mean of 28 percent compared with a mean increase of two percent in placebo patients, for an absolute difference of 30 percent (p<0.0001).

http://www.wikigenes.org/e/ref/e/20439622.html

Eliglustat tartate (Genz-112638)

What is Eliglustat?

• Eliglustat is a new investigational phase 3 compound from Genzyme Corporation that is being studied for type 1 Gaucher Disease.
• Eliglustat works as a substrate reduction therapy by reducing glucocerebroside. formation.
• This product is an oral agent (i.e. a pill) that is taken once or twice a day in contrast to an IV infusion for enzyme replacement therapy. Enzyme replacement therapy focuses on replenishing the enzyme that is deficient in Gaucher Disease and breaks down glucocerebroside that accumulates.
• The clinical trials for eliglustat tartate are sponsored by Genzyme Corporation.

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2 MIGLUSTAT

Miglustat- to treat Type 1 Gaucher disease (GD1)

Miglustat
(2R,3R,4R,5S)-1-butyl-2-(hydroxymethyl)piperidine-3,4,5-triol

PATENT-US 5,525,616, US 5,472,969 TO Actelion Pharms Ltd

Miglustat is a drug developed by Actelion and is used primarily to treat Type 1 Gaucher disease (GD1). It is marketed under the trade name Zavesca. Miglustat (OGT 918, N-butyl-deoxynojirimycin) is an imino sugar (molecular weight: 219 daltons), a synthetic analogue of D-glucose  and a white to off-white crystalline solid that has a bitter taste The primary pharmacological activity of miglustat is inhibition of the enzyme glucosylceramide synthase, catalyzing the first step in the biosynthesis of glycosphingolipids (GSL), i.e., the formation of glucosylceramide (GlcCer). Reduced formation of GlcCer will lead to decreased biosynthesis of more complex GSL. This therapeutic principle, called substrate reduction therapy (SRT), may be useful in disorders of intracellular (predominantly lysosomal) accumulation of GSL either due to their deficient breakdown or intracellular transport/trafficking. Miglustat exhibits a large volume of distribution and has the capacity to access deep organs such as the brain, bone and lung.

Miglustat is a synthetic derivative of a family of polyhydroxylated alkaloids or amino sugar extracted from plants and microorganisms. Its synthesis starts from D-glucose sugar in plants. The sugar then aminated and oxidized to amino fructose sugar, which then can form a cyclic aminohemiacetal called nojirimycin. Then the dehydration and reduction takes place successively before the formation of deoxynojirimycin, which is a precursor of miglustat. Since it is a synthetic derivative drug, alkylation ofdeoxynojirimycin can be synthesized in the laboratory with 1-butyl halide via amine alkylation.

 

Miglustat

CAS : 72599-27-0

(2R,3R,4R,5S)-1-Butyl-2-(hydroxymethyl)-3,4,5-piperidinetriol

Additional Names: N-butyldeoxynojirimycin; N-butylmoranoline

Manufacturers' Codes: OGT-918; SC-48334

Trademarks: Zavesca (Actelion)

Molecular Formula: C10H21NO4

Molecular Weight: 219.28

 C 54.77%, H 9.65%, N 6.39%, O 29.19%

Literature Ref: Amino sugar; inhibitor of glucosyltransferase, an enzyme involved in the biosynthesis of glycosphingolipids.

Prepn: B. Junge et al., DE 2758025; see also, eidem, US 4639436 (1979, 1987 both to Bayer).

Improved synthesis: E. W. Baxter, A. B. Reitz, J. Org. Chem. 59, 3175 (1994); C. R. R. Matos et al., Synthesis 1999, 571.

 In vitro efficacy vs HIV: A. Karpas et al., Proc. Natl. Acad. Sci. USA 85, 9229 (1988). Inhibition of glycolipid biosynthesis: F. M. Platt et al., J. Biol. Chem. 269, 8362 (1994).

Clinical evaluation in Gaucher's disease: T. Cox et al., Lancet 355, 1481 (2000). Review of pharmacology and clinical development in Gaucher's disease: P. L. McCormack, K. L. Goa, Drugs 63, 2427-2434 (2003).

Properties: White to off-white crystalline solid, mp 125-126°. [a]D25 -15.9° (c = 0.77 in water). Highly sol in water (>1000 mg/ml).

Melting point: mp 125-126°

Optical Rotation: [a]D25 -15.9° (c = 0.77 in water)

Therap-Cat: In treatment of inherited glycosphingolipid lysosomal storage disorders.

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