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ORGANIC SPECTROSCOPY

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DR ANTHONY MELVIN CRASTO Ph.D

DR ANTHONY MELVIN CRASTO Ph.D

DR ANTHONY MELVIN CRASTO, Born in Mumbai in 1964 and graduated from Mumbai University, Completed his Ph.D from ICT, 1991,Matunga, Mumbai, India, in Organic Chemistry, The thesis topic was Synthesis of Novel Pyrethroid Analogues, Currently he is working with GLENMARK PHARMACEUTICALS LTD, Research Centre as Principal Scientist, Process Research (bulk actives) at Mahape, Navi Mumbai, India. Total Industry exp 30 plus yrs, Prior to joining Glenmark, he has worked with major multinationals like Hoechst Marion Roussel, now Sanofi, Searle India Ltd, now RPG lifesciences, etc. He has worked with notable scientists like Dr K Nagarajan, Dr Ralph Stapel, Prof S Seshadri, Dr T.V. Radhakrishnan and Dr B. K. Kulkarni, etc, He did custom synthesis for major multinationals in his career like BASF, Novartis, Sanofi, etc., He has worked in Discovery, Natural products, Bulk drugs, Generics, Intermediates, Fine chemicals, Neutraceuticals, GMP, Scaleups, etc, he is now helping millions, has 9 million plus hits on Google on all Organic chemistry websites. His friends call him Open superstar worlddrugtracker. His New Drug Approvals, Green Chemistry International, All about drugs, Eurekamoments, Organic spectroscopy international, etc in organic chemistry are some most read blogs He has hands on experience in initiation and developing novel routes for drug molecules and implementation them on commercial scale over a 30 year tenure till date Dec 2017, Around 35 plus products in his career. He has good knowledge of IPM, GMP, Regulatory aspects, he has several International patents published worldwide . He has good proficiency in Technology transfer, Spectroscopy, Stereochemistry, Synthesis, Polymorphism etc., He suffered a paralytic stroke/ Acute Transverse mylitis in Dec 2007 and is 90 %Paralysed, He is bound to a wheelchair, this seems to have injected feul in him to help chemists all around the world, he is more active than before and is pushing boundaries, He has 9 million plus hits on Google, 2.5 lakh plus connections on all networking sites, 50 Lakh plus views on dozen plus blogs, He makes himself available to all, contact him on +91 9323115463, email amcrasto@gmail.com, Twitter, @amcrasto , He lives and will die for his family, 90% paralysis cannot kill his soul., Notably he has 19 lakh plus views on New Drug Approvals Blog in 216 countries......https://newdrugapprovals.wordpress.com/ , He appreciates the help he gets from one and all, Friends, Family, Glenmark, Readers, Wellwishers, Doctors, Drug authorities, His Contacts, Physiotherapist, etc

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Carglumic acid, карглумовая кислота , حمض كاروغلوميك , カルグルミ酸 ,


Carglumic acid.svgCarglumic acid.png

Carglumic acid

N-Carbamyl-L-glutamate;

  • Molecular FormulaC6H10N2O5
  • Average mass190.154 Da
N-Carbamylglutamate
карглумовая кислота [Russian] [INN]
حمض كاروغلوميك [Arabic] [INN]
カルグルミ酸;
1188-38-1 [RN]
5L0HB4V1EW
8008
L-Glutamic acid, N-(aminocarbonyl)-
L-Glutamic acid, N-(hydroxyiminomethyl)-
N-[Hydroxy(imino)methyl]-L-glutamic acid
(S)-2-Ureidopentanedioic acid
(S)-2-ureidopentanedioic acid; N-Carbamoyl-L-Glutamic Acid; N-Carbamyl-L-glutamate; N-Carbamylglutamate
OE 312 / OE-312, UNII5L0HB4V1EW
Prepn: H. McIlwain, Biochem. J. 33, 1942 (1939)

Carglumic acid is a Carbamoyl Phosphate Synthetase 1 Activator. The mechanism of action of carglumic acid is as a Carbamoyl Phosphate Synthetase 1 Activator.

For the treatment of acute and chronic hyperammonaemia in patients with N-acetylglutamate synthase (NAGS) deficiency. This enzyme is an important component of the urea cycle to prevent build up of neurotoxic ammonium in the blood.

EMA

Carglumic acid exists as a white powder or colourless crystals. It is soluble in boiling water, slightly soluble in cold water and practically insoluble in organic solvents (cyclohexane, dichloromethane, ether). The water solubility of carglumic acid at pH 2.0 is 21.0 g/L. It increases rapidly between the pH 3.0 (28.2 g/L) and the pH 5.0 (440.9 g/L). The solubility of carglumic acid in water is stable between pH 6.0 (555.5 g/L) and pH 8.0 (553.9 g/L). Carglumic acid is prepared from L-glutamic acid. It exhibits stereoisomerism due to the presence of one chiral centre and has one optical isomer; N-carbamoyl-D-glutamic acid.

ORIGINATOR ORPHAN EUROPE

POLA CHEMICAL

ORPHAN DRUG

EU APPROVED 2003 ORPHAN EUROPE

FDA 2010  ORPHAN EUROPE

JAPAN 2016 POLA CHEM

Title: Carglumic acid
CAS Registry Number: 1188-38-1
CAS Name: N-(Aminocarbonyl)-L-glutamic acid
Additional Names: carbamylglutamic acid; N-carbamoyl-L-glutamic acid; l-uramidoglutaric acid; ureidoglutaric acid
Trademarks: Carbaglu (Orphan Europe)
Molecular Formula: C6H10N2O5
Molecular Weight: 190.15
Percent Composition: C 37.90%, H 5.30%, N 14.73%, O 42.07%
Literature References: Metabolically stable analog of N-acetylglutamate, a physiological activator of the first enzyme of the urea cycle, carbamylphosphate synthetase (CAPS). Prepn: H. McIlwain, Biochem. J. 33, 1942 (1939). Effect on blood urea and ammonia levels and potential clinical application: J.-E. O’Connor et al., Eur. J. Pediatr. 143, 196 (1985). Evaluation in treatment of CAPS deficiency: G. Kuchler et al., J. Inher. Metab. Dis. 19, 220 (1996); of N-acetylglutamate synthetase (NAGS) deficiency: B. Plecko et al., Eur. J. Pediatr. 157, 996 (1998).
Properties: mp 174°.
Melting point: mp 174°
Therap-Cat: In treatment of inherited urea cycle disorders.

CARBAGLU®
(carglumic acid) Tablet for Oral Suspension

DESCRIPTION

CARBAGLU tablets for oral suspension, contain 200 mg of carglumic acid. Carglumic acid, the active substance, is a Carbamoyl Phosphate Synthetase 1 (CPS 1) activator and is soluble in boiling water, slightly soluble in cold water, and practically insoluble in organic solvents.

Chemically carglumic acid is N-carbamoyl-L-glutamic acid or (2S)-2-(carbamoylamino) pentanedioic acid, with a molecular weight of 190.16.

The structural formula is:

CARBAGLU® (carglumic acid) - Structural Formula Illustration

Molecular Formula: C6H10N2O5

The inactive ingredients of CARBAGLU are croscarmellose sodium, hypromellose, microcrystalline cellulose, silica colloidal anhydrous, sodium lauryl sulfate, sodium stearyl fumarate.

Carglumic Acid is an orally active, synthetic structural analogue of N-acetylglutamate (NAG) and carbamoyl phosphate synthetase 1 (CPS 1) activator, with ammonia lowering activity. NAG, which is formed by the hepatic enzyme N-acetylglutamate synthase (NAGS), is an essential allosteric activator of the enzyme carbamoyl phosphate synthetase 1 (CPS 1). CPS 1 plays an essential role in the urea cycle and converts ammonia into urea. Upon oral administration, carglumic acid can replace NAG in NAGS deficient patients and activates CPS 1, which prevents hyperammonaemia.

Carglumic acid is an orphan drug and a derivative of N-acetylglutamate that activates the first enzyme in the urea cycle that is responsible for removal and detoxification of ammonia, making this drug a valuable agent for therapy of hyperammonemia caused by rare forms of urea cycle defects. Clinical experience with carglumic acid is limited, but it has not been linked to significant serum enzyme elevations during therapy or to instances of clinically apparent acute liver injury.

Carglumic acid is an orphan drug, marketed by Orphan Europe under the trade name Carbaglu. Carglumic acid is used for the treatment of hyperammonaemia in patients with N-acetylglutamate synthase deficiency.[1][2] The initial daily dose ranges from 100 to 250 mg/kg, adjusted thereafter to maintain normal plasma levels of ammonia.

The US FDA approved it for treatment of hyperammonaemia on March 18, 2010. Orphan Drug exclusivity expired on March 18, 2017.[3] 

USFDA

https://www.accessdata.fda.gov/drugsatfda_docs/nda/2010/022562s000chemr.pdf

Carbaglu (carglumic acid) Tablets 200 mg, is a white elongated tablet with three score marks on both sides engraved C’s on one side. It is a dispersible tablet designed to be dispersed in of water and ingested or administered through a syringe via a nasogastric tube. It is indicated for treatment of acute hyperammonemia in patients with NAGS deficiency.

The drug substance, carglumic acid, is an allosteric activator of a critical urea cycle enzyme, carbamoyl phosphate synthetase (CPS). It is a close analog of the naturally occurring activator, N-acetyl glutamate (NAG). Carglumic acid is a urea-like derivative of the amino acid L-glutamate and contains one chiral center. The drug substance solid form is the neutral dicarboxylic acid and is a white crystalline powder. The water solubility of the drug substance depends on the . polymorphic solid form has been found.

The drug substance is manufactured by .
The facility was found to have acceptable cGMP status during an inspection by
the Agency in November 2009. The synthesis of carglumic acid consists of a

Regarding characterization, the drug substance structure was determined by
NMR, MS, IR and Regarding impurities, two potential
impurities are possible due to
hydantoin-5-proprionic acid (HPA) and diaza-1,3-dione-2,4-carboxy-7-
cycloheptane (Diaza). Only the has been detected at
batch release and it increases in amount during storage at elevated temperatures
but not at room temperature. This impurity also increases during drug product
storage at room temperature but not at refrigerated temperatures, see above
discussion. The starting materials, , were not
detected in several batches and therefore routine testing is not required.
Regarding drug substance specification, identity testing is by IR and HPLC.
Other tests include optical rotation, melting point, pH of 0.5% solution, loss on
drying, residue on ignition, heavy metals, assay and impurities by HPLC.
Regarding chiral purity, the observed specific optical rotation is small and
therefore not a very precise method for determination of chiral purity. Although
a chiral HPLC method was developed, since the r was not detected in
any samples (the limit of detection was 0.1%) during the development, originally
the sponsor did not propose to implement the test in the specification. However,
the Agency recommended that the chiral HPLC method be included in the
specification to assure chiral purity, and the sponsor agreed to do so with the limit
for the NMT
Batch release data were provided that justified the proposed acceptance limits. In
general, measured total impurities were low in the drug substance, about .
Appropriate in-house reference standards were established.
Stability results for 3 batches stored at 25°C/60%RH for 36 months remained
within the tight specification limits. A re-test period of for the drug
substance stored in its original packaging at room temperature is granted.

B. Description of How the Drug Product is Intended to be Used
The drug product tablets may be dispersed in a minimum amount of water
mL per tablet) and ingested immediately or administered through a syringe via a
nasogastric tube. The suspension has a slightly acidic taste.

NDA 022562

EUROPE

http://www.ema.europa.eu/docs/en_GB/document_library/EPAR_-_Public_assessment_report/human/004019/WC500230265.pdf

21 April 2017 EMA/CHMP/404487/2017 Committee for Medicinal Products for Human Use (CHMP) Assessment report Ucedane International non-proprietary name: carglumic acid Procedure No. EMEA/H/C/004019/0000

Carglumic acid (also called N-carbamyl-L-glutamate, or carbamylglutamate) is an orally active deacylaseresistant synthetic structural N-acetylglutamate (NAG) analogue. NAG, which is formed by the hepatic enzyme N-acetylglutamate synthase (NAGS), is an essential allosteric activator of the enzyme carbamoyl phosphate synthetase 1 (CPS-1). CPS-1 plays an essential role in the urea cycle and converts ammonia into urea which prevents hyperammonaemia. Despite a lower affinity of carbamoyl phosphate synthetase for carglumic acid than for N-acetylglutamate, carglumic acid has been shown in vivo to stimulate carbamoyl phosphate synthetase and to be much more effective than N-acetylglutamate in protecting against ammonia intoxication in rats.

Carglumic acid was first authorised in the EU as Carbaglu dispersible tablets in January 2003. At the time of approval Carbaglu was indicated for the treatment of hyperammonaemia associated with N-acetylglutamate synthase deficiency. Subsequently, the approved indications for Carbaglu have been extended and is now also authorised for the treatment of hyperammonaemia due to, isovaleric acidaemia, methymalonic acidaemia, or propionic acidaemia. Ucedane is indicated in treatment of hyperammonaemia due to N-acetylglutamate synthase primary deficiency. Proposed posology and method of administration for Ucedane

The chemical name of the active substance, carglumic acid, is N-Carbamyl-L-glutamic acid corresponding to the molecular formula C6H10N2O5. It has a relative molecular mass 190.16 g/mol and the following structure:

Carglumic acid exists as a white powder or colourless crystals. It is soluble in boiling water, slightly soluble in cold water and practically insoluble in organic solvents (cyclohexane, dichloromethane, ether). The water solubility of carglumic acid at pH 2.0 is 21.0 g/L. It increases rapidly between the pH 3.0 (28.2 g/L) and the pH 5.0 (440.9 g/L). The solubility of carglumic acid in water is stable between pH 6.0 (555.5 g/L) and pH 8.0 (553.9 g/L). Carglumic acid is prepared from L-glutamic acid. It exhibits stereoisomerism due to the presence of one chiral centre and has one optical isomer; N-carbamoyl-D-glutamic acid.

Adverse effects

The most common adverse effects include vomiting, abdominal pain, fever, and tonsillitis.[4]

SYNTHESIS PHARMACODIA

http://en.pharmacodia.com/web/drug/1_468.html

References

  1. Jump up^ Caldovic L, Morizono H, Daikhin Y, Nissim I, McCarter RJ, Yudkoff M, Tuchman M (2004). “Restoration of ureagenesis in N-acetylglutamate synthase deficiency by N-carbamylglutamate”. J Pediatr145 (4): 552–4. doi:10.1016/j.jpeds.2004.06.047PMID 15480384.
  2. Jump up^ Elpeleg O, Shaag A, Ben-Shalom E, Schmid T, Bachmann C (2002). “N-acetylglutamate synthase deficiency and the treatment of hyperammonemic encephalopathy”. Ann Neurol52 (6): 845–9. doi:10.1002/ana.10406PMID 12447942.
  3. Jump up^ “Patent and Exclusivity Search Results”.
  4. Jump up^ Drugs.comProfessional Drug Facts for Carglumic Acid.
Patent ID

Patent Title

Submitted Date

Granted Date

US2014322323 PHARMACEUTICAL DOSAGE FORM
2014-04-25
2014-10-30
US9592179 DISPOSABLE RIGID CONTAINER FOR PHARMACEUTICAL COMPOSITIONS
2012-09-21
2014-08-07
US2015099270 METHOD OF SCREENING PHARMACEUTICALS FOR DRUG INTERACTIONS AND NEPHROTOXICITY
2014-10-06
2015-04-09
US8459458 Disposable rigid container for pharmaceutical compositions
2011-03-18
2013-06-11
US7118913 Expression vector containing urea cycle enzyme gene, transformant thereof, and use of transformant for protein over-expression
2005-04-28
2006-10-10
Patent ID

Patent Title

Submitted Date

Granted Date

US2014079780 Crush resistant delayed-release dosage forms
2013-11-19
2014-03-20
US2010151028 CRUSH RESISTANT DELAYED-RELEASE DOSAGE FORMS
2009-12-17
2010-06-17
US2011311631 CONTROLLED RELEASE PHARMACEUTICAL COMPOSITION WITH RESISTANCE AGAINST THE INFLUENCE OF ETHANOL EMPLOYING A COATING COMPRISING A POLYMER MIXTURE AND EXCIPIENTS
2009-03-18
2011-12-22
US9730899 CONTROLLED RELEASE PHARMACEUTICAL COMPOSITION WITH RESISTANCE AGAINST THE INFLUENCE OF ETHANOL EMPLOYING A COATING COMPRISING NEUTRAL VINYL POLYMERS AND EXCIPIENTS
2009-03-18
2012-02-23
US2008311187 CRUSH RESISTAN DELAYED-RELEASE DOSAGE FORM
2008-06-17
2008-12-18
Patent ID

Patent Title

Submitted Date

Granted Date

US2017056347 METHODS AND COMPOSITIONS FOR TREATING CONDITIONS ASSOCIATED WITH AN ABNORMAL INFLAMMATORY RESPONSES
2016-09-01
US2017049899 TARGETED THERAPEUTICS
2016-08-30
US2016354370 METHOD FOR TREATING A PROTOZOAL INFECTION
2016-08-19
US9688967 Bacteria Engineered to Treat Diseases Associated with Hyperammonemia
2016-05-25
US2017056510 TARGETED THERAPEUTICS
2016-03-08
Patent ID

Patent Title

Submitted Date

Granted Date

US9669038 Heterocyclic compounds and uses thereof
2015-10-26
2017-06-06
US7790905 Pharmaceutical propylene glycol solvate compositions
2003-12-29
2010-09-07
US2017128580 TARGETED THERAPEUTICS
2017-01-19
US2017216370 BACTERIA ENGINEERED TO TREAT DISORDERS INVOLVING PROPIONATE CATABOLISM
2017-01-09
US2017056511 TARGETED THERAPEUTICS
2016-09-15
Carglumic acid
Carglumic acid.svg
Clinical data
Synonyms (S)-2-ureidopentanedioic acid
AHFS/Drugs.com Consumer Drug Information
License data
Pregnancy
category
  • unknown
Routes of
administration
Oral
ATC code
Pharmacokinetic data
Bioavailability 30%
Protein binding Undetermined
Metabolism Partial
Elimination half-life 4.3 to 9.5 hours
Excretion Fecal (60%) and renal (9%, unchanged)
Identifiers
CAS Number
PubChem CID
IUPHAR/BPS
DrugBank
ChemSpider
UNII
KEGG
ChEBI
ChEMBL
ECHA InfoCard 100.116.323 Edit this at Wikidata
Chemical and physical data
Formula C6H10N2O5
Molar mass 190.2 g/mol

////////////////Carglumic acid, FDA 2010, карглумовая кислота حمض كاروغلوميك カルグルミ酸 , ORPHAN, ORPHAN EU, JAPAN 2016, EU 2003, POLA, ORPHAN, OE 312

C(CC(=O)O)C(C(=O)O)NC(=O)N

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