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Är olika statiner ekvipotenta: en analys av kontemporär evidens inklusive farmakologi och läkemedelskemi
Linnaeus University, Faculty of Health and Life Sciences, Department of Chemistry and Biomedical Sciences.
2019 (Swedish)Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
Abstract [en]

Background: Statins are among the most used drugs in Sweden. There are currently four statins available on the Swedish market; atorvastatin, simvastatin, pravastatin and rosuvastatin. Statins act by inhibiting 3-hydroxy-3-methylglutaryl-coenzyme-A reductase, also known as HMG-CoA-reductase. HMG-CoA-reductase is the rate-limiting enzyme of the cholesterol synthesis. Decreased hepatic cholesterol leads to increased low-density lipoprotein (LDL) clearance from plasma to liver cells. Having a high level of LDL cholesterol is potentially dangerous as it can lead to atherosclerosis and cardiovascular disease. Statins significantly reduce cardiovascular morbidity and mortality in patients with and without coronary heart disease.

Purpose: The aim of this work was to investigate if there are any differences between the different statins according to contemporary evidence.

Method: This is a literary analysis. Studies included were searched from PubMed. A total of five studies were included.

Results: The result of this study indicates rosuvastatin to be most efficacious in lowering LDL cholesterol (LDL-C), triglycerides and total cholesterol. It also improved the high-density lipoprotein cholesterol (HDL-C) better than atorvastatin, simvastatin and pravastatin. Study 1 showed rosuvastatin to lower LDL-C with statistical significance (P<0.001) across dose ranges (10-40 mg) after 12 weeks. Study 2 compared a dose ratio of 1:2 between rosuvastatin and simvastatin in lowering LDL-C with a 3.24% (95% CI 4.10 to 2.38) favor of rosuvastatin. Study 4 compared effects of atorvastatin 80 mg and rosuvastatin 20 mg in patients with ST elevation myocardial infarction in a 4-week therapy. Rosuvastatin 20 resulted in a 35% compared with atorvastatin 80 mg 34% (P=0.59) reduction in LDL-C levels. Study 1 demonstrated rosuvastatin to improve HDL-C levels in daily doses of 40 mg with statistical significance compared with atorvastatin, simvastatin and pravastatin. Study 1 demonstrated rosuvastatin to lower total cholesterol with statistical significance (P<0.002) across doses compared with atorvastatin, simvastatin and pravastatin. Study 1 also demonstrated rosuvastatin to lower triglycerides more. In daily doses of 40 mg rosuvastatin had a statistical significance (P<0.002) versus simvastatin and pravastatin, but not atorvastatin. The P value between rosuvastatin and atorvastatin was not mentioned, neither the P-value between atorvastatin, simvastatin and pravastatin.

Conclusion: Statins are not equipotent. Rosuvastatin showed greater results in reducing LDL-C, triglycerides and total cholesterol with no increased risk of adverse events compared with atorvastatin, simvastatin and pravastatin. Rosuvastatin still lacks in clinical experience which makes needs for further studies on this topic.

Place, publisher, year, edition, pages
2019.
Keywords [sv]
Mattias Davidsson
National Category
Pharmacology and Toxicology
Identifiers
URN: urn:nbn:se:lnu:diva-85175OAI: oai:DiVA.org:lnu-85175DiVA, id: diva2:1323450
Subject / course
Pharmacy
Educational program
Bachelor of Science Programme in Pharmacy, 180 credits
Supervisors
Examiners
Available from: 2019-06-12 Created: 2019-06-12 Last updated: 2019-06-12Bibliographically approved

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