Current medical research and opinion · 2013
Observational study of ezetimibe discontinuation in primary care practices in the UK.
СтатьяНаблюдательное исследованиеПоддержка исследования: вне правительства СШАНазвание и аннотация: Перевод пока не подготовлен
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Hall Gillian C, Amber Vian, O'Regan Chris, Jameson Kevin
Аннотация
OBJECTIVE: We investigated the circumstances of ezetimibe discontinuation as its prescribing had been discouraged in some publications.
RESEARCH DESIGN AND METHODS: Adults on stable lipid-modifying therapy (LMT) including ezetimibe, who then had >8 weeks cessation in their prescribed ezetimibe regimen (2010-2011) were identified from THIN UK primary care database. Lipid values and parallel changes to other LMT were described overall and in a sub-group with a history of diabetes, cardiovascular disease or familial hypercholesterolaemia (high-risk group).
RESULTS: Ezetimibe therapy stopped in 7087 patients after a mean of 38 months; 67.0% were in the high-risk group. No lipid readings were recorded for 16.1% of patients in the year before and 26.2% in the year after ezetimibe stopped; 11.0% and 12.4% in the high-risk group respectively. In the prior year, 60.2% patients with any lipid reading had a total cholesterol (T-cholesterol) <5 mmol/l and 59.2% had a T-cholesterol <5 mmol/l and LDL-cholesterol <3 mmol/l. In the high-risk group, 66.8% had a T-cholesterol <5 mmol/l, 38.9% had either a T-cholesterol <4 or a LDL-cholesterol <2 mmol/l and 29.4% had reached both targets. In both populations, 42% patients had 6 months' follow-up after ezetimibe stopped with no change to other LMT. An LMT change within 8 weeks (19%) was usually a new statin while 27% overall had a further ezetimibe prescription after 8-26 weeks.
LIMITATIONS: Only absolute lipid values were included, as percentage change from baseline level may not be reliable. The study included a larger proportion of patients in Scotland relative to the UK population.
CONCLUSIONS: Prescribed ezetimibe often stopped without either a recent lipid value or attainment of optimal, or sometimes minimum, lipid targets. Patients did not always receive parallel intensification of other LMT or a further ezetimibe prescription within 6 months.
RESEARCH DESIGN AND METHODS: Adults on stable lipid-modifying therapy (LMT) including ezetimibe, who then had >8 weeks cessation in their prescribed ezetimibe regimen (2010-2011) were identified from THIN UK primary care database. Lipid values and parallel changes to other LMT were described overall and in a sub-group with a history of diabetes, cardiovascular disease or familial hypercholesterolaemia (high-risk group).
RESULTS: Ezetimibe therapy stopped in 7087 patients after a mean of 38 months; 67.0% were in the high-risk group. No lipid readings were recorded for 16.1% of patients in the year before and 26.2% in the year after ezetimibe stopped; 11.0% and 12.4% in the high-risk group respectively. In the prior year, 60.2% patients with any lipid reading had a total cholesterol (T-cholesterol) <5 mmol/l and 59.2% had a T-cholesterol <5 mmol/l and LDL-cholesterol <3 mmol/l. In the high-risk group, 66.8% had a T-cholesterol <5 mmol/l, 38.9% had either a T-cholesterol <4 or a LDL-cholesterol <2 mmol/l and 29.4% had reached both targets. In both populations, 42% patients had 6 months' follow-up after ezetimibe stopped with no change to other LMT. An LMT change within 8 weeks (19%) was usually a new statin while 27% overall had a further ezetimibe prescription after 8-26 weeks.
LIMITATIONS: Only absolute lipid values were included, as percentage change from baseline level may not be reliable. The study included a larger proportion of patients in Scotland relative to the UK population.
CONCLUSIONS: Prescribed ezetimibe often stopped without either a recent lipid value or attainment of optimal, or sometimes minimum, lipid targets. Patients did not always receive parallel intensification of other LMT or a further ezetimibe prescription within 6 months.