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Rosuvastin bests atorvastatin for cholesterol lowering with more risk of developing diabetes: BMJ
Korea: A secondary analysis of the randomised LODESTAR trial evaluated the rosuvastatin versus atorvastatin treatment in adults with coronary artery disease (CAD). Rosuvastatin and atorvastatin are two widely used statins.
The study, published in The BMJ, found that both statins are equally effective at preventing strokes, heart attacks, and death in CAD patients. Rosuvastatin treatment was shown to be associated with lower cholesterol level but carried a higher risk of developing type 2 diabetes.
Lowering “bad” (LDL) cholesterol levels with statins is recommended for people with coronary artery disease - a condition where the blood vessels supplying the heart are narrowed or blocked.
But few trials have directly compared the long term clinical effects of the two most potent statins-rosuvastatin and atorvastatin-in people with coronary artery disease.
To address this, researchers in Korea analysed the results of the LODESTAR clinical trial, involving 4,400 adults (average age 65 years; 28% women) with coronary artery disease at 12 hospitals in South Korea.
At the start of the trial, medical history and lifestyle information was recorded and participants were randomly assigned to receive either daily rosuvastatin or atorvastatin for three years from September 2016 to November 2019.
The researchers then examined differences between the two groups in terms of deaths from any cause and rates of heart attacks, strokes, and coronary revascularisation (procedures to restore blood flow to parts of the heart).
Several other safety outcomes, including development of type 2 diabetes, hospital admissions due to heart failure, major blood clots, and cataract surgery were also assessed.
In all, 4,341 of the 4,400 participants (98.7%) completed the trial.
The researchers found no discernible differences between the two groups for all cause death (2.6% in the rosuvastatin group v 2.3% in the atorvastatin group), heart attack (1.5% v 1.2%), stroke (1.1% v 0.9%) or any revascularisation (5.3% v 5.2%).
The average LDL cholesterol level during the study period was lower in the rosuvastatin group than atorvastatin group (1.8 v 1.9 mmol/L).
The rosuvastatin group had a higher rate of developing type 2 diabetes requiring medication (7.2% v 5.3%) and cataract surgery (2.5% v 1.5%), but other safety outcomes did not differ between the two groups.
The researchers acknowledge several study limitations including the fact that only Asian participants were included in this trial, and the three-year study period may have been relatively short to find longer term effects of two statin types.
As such, they say their findings “should be interpreted with caution, and further dedicated investigation with longer follow-up is warranted.”
However, they conclude: “In people with coronary artery disease, rosuvastatin and atorvastatin showed comparable efficacy in terms of a composite of all cause death, myocardial infarction, stroke, or any coronary revascularisation within three years.”
They add: “Rosuvastatin was associated with lower LDL cholesterol levels, but it incurred a higher risk of new onset diabetes mellitus requiring antidiabetics and cataract surgery than atorvastatin.”
Reference:
Lee Y, Hong S, Kang W C, Hong B, Lee J, Lee J et al. Rosuvastatin versus atorvastatin treatment in adults with coronary artery disease: secondary analysis of the randomised LODESTAR trial BMJ 2023; 383 :e075837 doi:10.1136/bmj-2023-075837.
Dr Kamal Kant Kohli-MBBS, DTCD- a chest specialist with more than 30 years of practice and a flair for writing clinical articles, Dr Kamal Kant Kohli joined Medical Dialogues as a Chief Editor of Medical News. Besides writing articles, as an editor, he proofreads and verifies all the medical content published on Medical Dialogues including those coming from journals, studies,medical conferences,guidelines etc. Email: drkohli@medicaldialogues.in. Contact no. 011-43720751