出典(authority):フリー百科事典『ウィキペディア(Wikipedia)』「2014/04/30 23:53:18」(JST)
Systematic (IUPAC) name | |
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(3R,5S,6E)-7-[2-cyclopropyl-4-(4-fluorophenyl)quinolin-3-yl]-3,5-dihydroxyhept-6-enoic acid | |
Clinical data | |
Trade names | Livalo |
AHFS/Drugs.com | monograph |
MedlinePlus | a610018 |
Licence data | US FDA:link |
Pregnancy cat. | D (AU) X (US) |
Legal status | Prescription Only (S4) (AU) ℞-only (CA) POM (UK) ℞-only (US) |
Routes | Oral |
Pharmacokinetic data | |
Bioavailability | 60% |
Protein binding | 96% |
Metabolism | minimally CYP2C9 |
Half-life | 11 hours |
Excretion | Faeces |
Identifiers | |
CAS number | 147511-69-1 N |
ATC code | C10AA08 |
PubChem | CID 5282452 |
ChemSpider | 4445604 Y |
UNII | M5681Q5F9P Y |
ChEBI | CHEBI:32020 N |
ChEMBL | CHEMBL1201753 N |
Chemical data | |
Formula | C25H24FNO4 |
Mol. mass | 421.461 |
SMILES
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InChI
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Pitavastatin (usually as a calcium salt) is a member of the blood cholesterol lowering medication class of statins,[1] marketed in the United States under the trade name Livalo. Like other statins, it is an inhibitor of HMG-CoA reductase, the enzyme that catalyses the first step of cholesterol synthesis. It has been available in Japan since 2003, and is being marketed under licence in South Korea and in India.[2] It is likely that pitavastatin will be approved for use in hypercholesterolaemia (elevated levels of cholesterol in the blood) and for the prevention of cardiovascular disease outside South and Southeast Asia as well.[3] In the US, it received FDA approval in 2009.[4]
Like the other statins, pitavastatin is indicated for hypercholesterolaemia (elevated cholesterol) and for the prevention of cardiovascular disease. A 2009 study showed that pitavastatin increased HDL cholesterol (24.6%), especially in patients with HDL lower than 40 mg/dl, in addition to greatly reducing LDL cholesterol (–31.3%).[5] As a consequence, pitavastatin is most likely to be appropriate for patients with metabolic syndrome with high LDL, low HDL and diabetes mellitus.
Common statin-related side effects (headaches, stomach upset, abnormal liver function tests and muscle cramps) were similar to other statins. However, pitavastatin seems to lead to fewer muscle side effects than certain statins that are lipid-soluble, as a result of the fact that pitavastatin is water-soluble (as is pravastatin, for example).[6] One study found that coenzyme Q10 was not reduced as much as with certain other statins (though this is unlikely given the inherent chemistry of the HMG-CoA reductase pathway that all statin drugs inhibit).[3][7]
Hyperuricemia or increased levels of serum uric acid have been reported with pitavastatin.[8]
Most statins are metabolised in part by one or more hepatic cytochrome P450 enzymes, leading to an increased potential for drug interactions and problems with certain foods (such as grapefruit juice). Pitavastatin appears to be a substrate of CYP2C9, and not CYP3A4 (which is a common source of interactions in other statins). As a result, pitavastatin is less likely to interact with drugs that are metabolized via CYP3A4, which might be important for elderly patients who need to take multiple medicines.[3]
Pitavastatin (previously known as itavastatin, itabavastin, nisvastatin, NK-104 or NKS-104) was discovered in Japan by Nissan Chemical Industries and developed further by Kowa Pharmaceuticals, Tokyo.[3] Pitavastatin was approved for use in the United States by the FDA on 08/03/2009 under the trade name Livalo. Pitavastatin has been also approved by the Medicines and Healthcare products Regulatory Agency (MHRA) in UK on 17 August 2010.
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リンク元 | 「ピタバスタチン」 |
拡張検索 | 「pitavastatin calcium」 |
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