In order to bring you the best possible user experience, this site uses Javascript. If you are seeing this message, it is likely that the Javascript option in your browser is disabled. For optimal viewing of this site, please ensure that Javascript is enabled for your browser.
Did you know that your browser is out of date? To get the best experience using our website we recommend that you upgrade to a newer version. Learn more.

Blood pressure and cholesterol lowering drugs continue to improve survival after a decade

Lipids


Munich, Germany – 26 Aug 2018:  Blood pressure and cholesterol lowering drugs continue to improve survival in patients with hypertension after more than a decade, according to late breaking results from the ASCOT Legacy study presented today at ESC Congress 20181 and published in The Lancet².

Dr Ajay K. Gupta, of the William Harvey Research Institute, Queen Mary University London, UK, said: “Patients in their mid-60s with high blood pressure were less likely to die from heart disease or stroke by age 75–80 if they had taken both calcium channel blocker-based blood pressure lowering treatment and a statin.”

The ASCOT Legacy study is the long-term follow-up of 8,580 patients from the UK who took part in the Anglo-Scandinavian Cardiac Outcomes Trial (ASCOT), which between 1998 and 2000 recruited patients with high blood pressure and three or more additional risk factors for cardiovascular disease.

Patients who took a newer blood pressure lowering treatment (based on a calcium channel blocker) for 5.5 years were 29% less likely to have died from a stroke ten years later than those taking an older regimen (based on a beta-blocker). There was a non-significant trend towards 10% fewer cardiovascular deaths with the newer therapy.

Patients with average (6.5 mmol/l) or below average blood cholesterol levels at the start of the trial who took a statin for 3.3–5.5 years were 15% less likely to have died from cardiovascular causes such as heart disease and stroke 16 years later than those randomised to placebo.

A subgroup of patients with above average cholesterol who received standard lipid-lowering therapy for 5.5 years had 21% fewer cardiovascular deaths over ten years of follow-up with the newer blood pressure therapy compared to the older one. There was a non-significant trend towards lower all-cause and stroke deaths with the newer treatment.

“These results are remarkable,” said Professor Peter Sever, of the National Heart and Lung Institute at Imperial College London, UK, who jointly led the study with Dr Gupta. “We have previously shown that statins confer long-term survival benefits after trials have stopped, but this is the first time it has been found with a blood pressure treatment.”

Dr Gupta said: “The findings provide further support for the use of an effective blood pressure lowering therapy plus a statin in most patients with high blood pressure.”

A main objective of the initial ASCOT trial was to find out whether a new treatment strategy for high blood pressure was more effective in preventing heart attacks than an old strategy. Patients with high blood pressure were randomly allocated to the new treatment of amlodipine (a calcium channel blocker) plus perindopril (an angiotensin-converting enzyme inhibitor) if needed to achieve the target blood pressure, or the old therapy of atenolol (a beta-blocker) plus bendroflumethiazide (a diuretic) and potassium if needed. The medicines were taken for a median of 5.5 years, when the trial was stopped because the newer treatment prevented more strokes and deaths.3 After the trial, patients went on to receive usual (or routine) care.

A second aim of the trial was to discover if a statin would provide added protection against coronary heart disease in patients with high blood pressure and cholesterol levels below 6.5 mmol/L. Patients with a blood cholesterol level of 6.5 mmol/l or less were randomly allocated to atorvastatin or placebo for 3.3 years, when the trial was prematurely stopped because atorvastatin prevented more heart attacks and strokes.4 Following this, patients were offered atorvastatin for the remainder of the blood pressuring lowering arm of the trial. During this 2.2 year period approximately two-thirds of patients previously assigned to either atorvastatin or placebo took atorvastatin.

A third aim of the trial was to evaluate the effectiveness of the newer versus older blood pressure lowering treatment in patients with high blood pressure and high cholesterol (above 6.5 mmol/l). These patients did not participate in the randomised lipid-lowering arm of the trial and all received standard lipid-lowering therapy for 5.5 years.

Professor Mark Caulfield, Director of the William Harvey Research Institute, said: “This study confirms the importance of lowering blood pressure and cholesterol to prevent disabling and life-shortening cardiovascular disease.”

ENDS

References

1“ASCOT Legacy study – Long-term impact of BP and lipid-lowering treatment in hypertensive patients” will be presented during the session Clinical Trial Updates on Sunday 26 August from 11:00 to 12:30 in Brahms – The Hub.

² The Lancet: http://dx.doi.org/10.1016/S0140-6736(18)31776-8

3Dahlöf BSever PSPoulter NRet al. Prevention of cardiovascular events with an antihypertensive regimen of amlodipine adding perindopril as required versus atenolol adding bendroflumethiazide as required, in the Anglo-Scandinavian Cardiac Outcomes Trial-Blood Pressure Lowering Arm (ASCOT-BPLA): a multicentre randomised controlled trial. Lancet. 2005;366:895–906.

4Sever PSDahlöf BPoulter NRet al. Prevention of coronary and stroke events with atorvastatin in hypertensive patients who have average or lower-than-average cholesterol concentrations, in the Anglo-Scandinavian Cardiac Outcomes Trial--Lipid Lowering Arm (ASCOT-LLA): a multicentre randomised controlled trial. Lancet. 2003;361:1149–1158.

Notes to editor

SOURCES OF FUNDING: The original ASCOT study was investigator led with funding provided by Pfizer. The ASCOT Legacy programme was investigator led and in part funded by research grants from Pfizer to Imperial College London and the Foundation for Circulatory Health.

DISCLOSURES: Professor Peter Sever is a National Institute for Health Research Senior Investigator and was supported by the Biomedical Research Centre Award to Imperial College Healthcare NHS Trust, from the National Institute for Health Research. Dr Ajay Gupta has been supported by the Barts Charity and William Harvey Research Institute.

 

 

ESC Press Office
For press enquiries, independent comment, please contact the ESC Press Office at press@escardio.org

To access congress scientific resources visit ESC Congress 365.


About the European Society of Cardiology

The European Society of Cardiology brings together health care professionals from more than 150 countries, working to advance cardiovascular medicine and help people lead longer, healthier lives.

About ESC Congress 2018

ESC Congress is the world’s largest and most influential cardiovascular event contributing to global awareness of the latest clinical trials and breakthrough discoveries. ESC Congress 2018 takes place 25 to 29 August at the Messe München in Munich, Germany. Explore the scientific programme.

 

This press release accompanies both a presentation and an ESC press conference at the ESC Congress 2018. Edited by the ESC from material supplied by the investigators themselves, this press release does not necessarily reflect the opinion of the European Society of Cardiology. The content of the press release has been approved by the presenter.