Rasagiline mesylate

그림문자(GHS)

• 그림문자(GHS)

  

• 신호 어

  Warning

• 유해·위험 문구

  H302：삼키면 유해함

• 예방조치문구

  P280：보호장갑/보호의/보안경/안면보호구를 착용하시오.

  P305+P351+P338：눈에 묻으면 몇 분간 물로 조심해서 씻으시오. 가능하면 콘택트렌즈를 제거하시오. 계속 씻으시오.

Rasagiline mesylate 화학적 특성, 용도, 생산

• 개요

  Rasagiline mesylate is a potent and selective irreversible monoamine oxidase B (MAO-B) inhibitor launched in 2005 in Israel by Teva as monotherapy in patients with early Parkinson's disease and as adjuvant treatment in moderate-toadvanced disease. Lundbeck will market the drug throughout Europe. Rasagiline is in phase II clinical trials at Teva and Eisai for the treatment of Alzheimer's type dementia.

• 화학적 성질

  White to Off-White Crystalline Solid

• 용도

  Rasagiline Mesylate is a new MAO-B inhibitor for the treatment of idiopathic Parkinson's disease.

• Indications

  Rasagiline mesylate is a novel, potent, second-generation, selective, irreversible MAO-B inhibitor that blocks the breakdown of dopamine. It is approved for the treatment of PD. Indications for use of once-daily rasagiline are as a monotherapy in early PD and as an adjunct to levodopa in moderate to advanced disease. Rasagiline significantly improves symptoms during initial monotherapy in patients with early PD and as an adjunct treatment to levodopa in moderate-to-advanced patients. Rasagiline is well tolerated up to doses as high as 20 mg/day. Evidence for neuroprotective effect of rasagiline is as follows (Jain 2010c):
  Structure activity studies have shown that the neuroprotective activity is associated with the propargyl moiety of rasagiline, which protects mitochondrial viability.
  Experimental evidence supports rasagiline's neuroprotective efficacy, showing that neuronal survival is related to the anti-apoptotic properties of its propargyl moiety. Aminoindan metabolite of rasagiline has been shown to have neuroprotective properties (Bar-Am et al. 2010).

• 일반 설명

  Rasagiline mesylate, (R)-N-(prop-2-ynyl)-2,3-dihydro-1H-inden-1-amine methanesulfonate(Azilect), belongs to the propargylamine family and is a whiteto off-white powder, soluble in water or ethanol, slightly solublein isopropanol. Rasagiline is rapidly absorbed. Plasmaprotein binding for rasagiline ranges from 88% to 94%, withspecific binding to serum albumin being 61% to 63%. It undergoescomplete biotransformation before excretion, mainlyvia N-dealkylation and hydroxylation, to yield three majormetabolites: 1(R)-aminoindan, 3-hydroxy-N-propargyl-1-aminoindan, and 3-hydroxy-1-aminoindan. Both oxidativepathways are catalyzed by cytochrome P450 (CYP) enzymes,mainly the 1A2 isozyme. Rasagiline and its metabolites undergoglucuronide conjugation with subsequent urinary excretion.Inhibitors of the CYP1A2 may increase plasmaconcentrations of rasagiline up to twofold. Because rasagilineis a selective and irreversible inhibitor of MAO-B, itsduration of action is independent of the drug’s half-life and isinstead determined by the regeneration rate of MAO-B. Thischaracteristic is potentially beneficial in PD, where rasagiline’sprolonged effect may be able to limit the fluctuating responsesthat are characteristic of long-term drug treatmentwith levodopa.

• Mechanism of action

  The specific mechanism of action of Rasagiline mesylate is unknown. One of these mechanisms is thought to be related to its MAO-B inhibitory activity, which leads to elevated extracellular dopamine levels in the striatum. It irreversibly blocks dopamine metabolism, thereby increasing dopamine levels, which can be beneficial for symptoms in Parkinson's disease patients.

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