a clinical trial of statin therapy for reducing events in the elderly (staree)

Conditions: Independent Living; Disability Free Survival; Elderly; Healthy

Summary: the staree study will examine whether treatment with statin (atorvastatin 40mg) compared with placebo will prolong disability free survival and reduce major cardiovascular events amongst healthy elderly people (≥70 years).

statin therapy has been shown to reduce the risk of vascular events in younger individuals with manifest atherosclerotic disease or at high risk of vascular events. however, data derived from meta-analyses of existing trials suggests that the efficacy of statins may decline sharply amongst those over 70-75 years of age. insufficient patients of this age group have been included in major trials to be certain of the benefit. within this age group part of the benefit of statin therapy may be offset by adverse effects including myopathy, development of diabetes, cancer and cognitive impairment, all of which are more prevalent in the elderly in any event. the use of statins in the over 70 age group raises fundamental questions about the purpose of preventive drug therapy in this age group. when a preventive agent is used in the context of competing mortality, polypharmacy and a higher incidence of adverse effects its use should be justified by an improvement in quality of life or some other composite measure that demonstrates that the benefit outweighs other factors. staree will determine whether taking daily statin therapy (40 mg atorvastatin) will extend the length of a disability-free life, determined from survival outside permanent residential care, in healthy participants aged 70 years and above.

Eligibility criteria:
inclusion criteria: * men and women aged ≥70 years living independently in the community * willing and able to provide informed consent and accept the study requirements (note: competent physical ability to participate in the trial is assessed using the katz adl questionnaire) exclusion criteria: a history of cardiovascular disease (defined as myocardial infarction, stroke, peripheral vascular disease, angina, transient ischaemic attack, coronary artery angioplasty and/or stenting, coronary artery bypass grafting, carotid stenosis, abdominal aortic aneurysm or heart failure), * a history of dementia or a 3ms score \<78 on screening, * a history of diabetes, * total cholesterol \>7.5 mmol/l, * moderate or severe chronic kidney disease (persistent proteinuria (urine albumin:creatinine ratio \>30mg/mmol or urine protein:creatinine ratios \>45 mg/mmol)45 and/or egfr \<45ml/min/1.73m2), * moderate or severe liver disease (persistent elevations of transaminases of more than 3 times the upper limit of the normal laboratory reference range), * serious inter-current illness likely to cause death within the next 5 years such as terminal cancer or obstructive airways disease, * current participation in a clinical trial, * absolute contraindication to statin therapy, * current use of statin therapy or other lipid lowering therapy for primary prevention and unwilling to stop therapy, * current long term or permanent use of the following cytochrome p450 (cyp) 3a4 inhibitors : amiodarone, boceprevir, cimetidine, cyclosporin, danazol, fosamprenavir, indinavir, lopinavir + ritonavir, erythromycin, fluconazole, itraconazole, ketoconazole.

Keywords: survival functional disability cardiovascular disease diabetes dementia cancer