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NCT04204915Recruiting

The Early Valve Replacement in Severe ASYmptomatic Aortic Stenosis Study

A Randomised Controlled Trial of Early Valve Replacement in Severe ASYmptomatic Aortic Stenosis

Source: ClinicalTrials.gov · Last updated 21 Jul 2026

Brief summary (registry, in English)

Aortic stenosis (AS) affects approximately 5% of individuals \>65 years old, with \~3% of people \>75 years having moderate to severe disease. The prevalence of AS is rising rapidly due to an ageing population and is projected to double in the next two decades. Increasingly clinicians face the dilemma of how to best manage this growing population of mainly elderly patients, many of whom are asymptomatic but have been identified as having severe AS, often as an incidental finding. Reduced aortic valve opening progresses over decades without any apparent symptoms because the heart compensates for the AS. Ultimately, compensatory mechanisms fail resulting in angina, syncope or heart failure. If these symptomatic patients with severe AS remain untreated, they have a dire prognosis. In this situation the only effective treatment is AVR, either surgically or using TAVI. Conversely, conventional teaching and clinical practice in cardiology has been that, in the absence of symptoms, the prognosis is usually excellent and, except in a few very specific circumstances, conservative management and regular review (expectant management) is recommended. This advice is reflected in current international guidelines but is based largely on historical precedent. There has never been a randomised controlled trial to address the relative benefits of early AVR versus expectant management in patients with severe asymptomatic AS. The relative benefits of a strategy of early AVR/TAVI versus expectant management in patients with asymptomatic severe AS are unclear. There is clinical equipoise but it remains one of the few areas of cardiovascular medicine where no randomised controlled trials (RCT) have been performed. The EASY-AS study will provide crucial data on the relative merits of these differing approaches to management, in terms of important patient orientated outcomes, conventional cardiovascular end-points and cost effectiveness.

Status (registry)
Recruiting
Study type
Interventional
Enrollment
2104 (estimated)
First submitted
17 Dec 2019
Start date
10 Mar 2020
Primary completion date
1 Apr 2031
Lead sponsor
University of Leicester
NCT number
NCT04204915

What you commit to

  • Study type: Interventional
  • Planned participants: 2104
  • From 10 Mar 2020 to the primary completion date, 1 Apr 2031
  • 109 sites in 7 countries
  • Visits and tests: ask the trial team, the registry does not list them

Built from the registry fields of ClinicalTrials.gov. It describes the study, not your situation.

Who cannot take part

Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.

Prior treatment

  • Patient has previously undergone AVR or TAVI with restenosis

Other illness

  • Additional severe valvular heart disease
  • Other cardiac surgery planned pre-randomisation (eg CABG)

Lab values

  • Left ventricular systolic dysfunction (LVEF \<50%)

Age

  • Co-morbid condition that, in the opinion of the treating cardiologist, limits life expectancy to \<2 years

Other

  • Symptoms related to AS
  • Pregnancy

Who the study is looking for

  • Age \>18 years
  • Patient has severe asymptomatic AS, in line with current international guidelines, defined as either:
    • Peak velocity ≥4m/s OR mean pressure gradient ≥40mmHg WITH aortic valve area ≤1.0cm2 OR ≤0.6cm2/m2 body surface area OR
    • Peak velocity ≥4m/s OR mean pressure gradient ≥40mmHg WITH aortic valve area \>1.0 - ≤1.2cm2 OR \>0.6 - ≤0.7cm2/m2 body surface area AND high sex specific calcium score\* OR
    • Peak Velocity ≥3.5m/s - 3.9m/s AND mean pressure gradient \<40 mmHg WITH aortic valve area ≤1.0cm2 OR ≤0.6cm2/m2 body surface area AND high sex specific calcium score\* \*Sex specific high calcium scores (Agatston units): \>1200 females; \>2000 males
  • The responsible clinician feels that either ongoing surveillance or early AVR are appropriate.
  • Regarded by the treating cardiologist to be suitable for AVR (surgical or TAVI) with an acceptable risk
  • Willing to provide informed consent and be randomised to early AVR or expectant management
  • An ability to understand one of the written languages that the study has provided written and visual materials in, or the availability of a translator to explain the study documentation

Age in the registry: 18 years to - · Sex: All · Does not accept healthy volunteers

Full criteria on ClinicalTrials.gov

Sites (109)

Sites in registry order. Save your city in your profile to sort them by distance.

SiteCityCountrySite status
Flinders Medical Centre
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AdelaideAustraliaRecruiting
Royal Adelaide Hospital
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AdelaideAustraliaRecruiting
Prince Charles Hospital
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ChermsideAustraliaRecruiting
Monash Health
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ClaytonAustraliaRecruiting
Townsville Hospital
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DouglasAustraliaRecruiting
Lyell McEwin Hospital
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Elizabeth ValeAustraliaRecruiting
Northern Hospital
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EppingAustraliaRecruiting
Canberra Hospital
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GarranAustraliaRecruiting
University Hospital Geelong
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GeelongAustraliaRecruiting
Royal Hobart Hospital
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HobartAustraliaRecruiting
Nepean Hospital
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KingswoodAustraliaRecruiting
Liverpool Hospital
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LiverpoolAustraliaRecruiting
John Hunter Hospital
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New Lambton HeightsAustraliaRecruiting
Royal Perth Hospital
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PerthAustraliaRecruiting
Fiona Stanley Hospital
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PerthAustraliaRecruiting
The Gold Coast Hospital
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SouthportAustraliaRecruiting
Royal North Shore Hospital
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St LeonardsAustraliaRecruiting
Royal Darwin Hospital
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TiwiAustraliaRecruiting
Westmead Hospital
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WestmeadAustraliaRecruiting
Wollongong Hospital
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WollongongAustraliaRecruiting
Sint-Jan Hospital
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BrugesBelgiumRecruiting
Ziekenhuis Oost-Limburg
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GenkBelgiumRecruiting
University Hospital of Brussels
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JetteBelgiumRecruiting
Hospital Germans Trias
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BarcelonaSpainRecruiting
University Hospital of Navarra
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PamplonaSpainRecruiting
Aberdeen Royal Infirmary
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AberdeenUnited KingdomRecruiting
Aintree University Hospital
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AintreeUnited KingdomRecruiting
Wansbeck General Hospital
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AshingtonUnited KingdomRecruiting
University Hospital Ayr
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AyrUnited KingdomRecruiting
Barnsley Hospital NHS Foundation Trust
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BarnsleyUnited KingdomRecruiting
Basildon University Hospital
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BasildonUnited KingdomRecruiting
Basingstoke and North Hampshire Hospital
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BasingstokeUnited KingdomRecruiting
Queen Elizabeth Hospital
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BirminghamUnited KingdomRecruiting
Blackpool Victoria Hospital
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BlackpoolUnited KingdomRecruiting
Glan Clwyd Hospital
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BodelwyddanUnited KingdomRecruiting
Royal Sussex County Hospital
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BrightonUnited KingdomRecruiting
North Cumbria Integrated Care
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CarlisleUnited KingdomRecruiting
Chesterfield Royal Hospital
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ChesterfieldUnited KingdomRecruiting
University Hospital Coventry &amp; Warwickshire
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CoventryUnited KingdomRecruiting
County Durham and Darlington NHS Foundation Trust
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DarlingtonUnited KingdomRecruiting
Doncaster Royal Infirmary
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DoncasterUnited KingdomRecruiting
Dorset County Hospital
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DorchesterUnited KingdomWithdrawn
Russells Hall Hospital
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DudleyUnited KingdomRecruiting
Ninewells Hospital
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DundeeUnited KingdomRecruiting
University Hospital of North Durham
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DurhamUnited KingdomRecruiting
The Royal Infirmary of Edinburgh
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EdinburghUnited KingdomRecruiting
Royal Devon & Exeter Hospital
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ExeterUnited KingdomRecruiting
Gateshead Health NHS Foundation Trust
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GatesheadUnited KingdomRecruiting
Golden Jubilee National Hospital
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GlasgowUnited KingdomRecruiting
Glasgow Royal Infirmary
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GlasgowUnited KingdomRecruiting
Queen Elizabeth University Hospital
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GlasgowUnited KingdomRecruiting
Gloucestershire Hospitals NHS Foundation
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GloucesterUnited KingdomRecruiting
Wycombe Hospital
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High WycombeUnited KingdomRecruiting
Huddersfield Royal Infirmary
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HuddersfieldUnited KingdomRecruiting
Raigmore Hospital
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InvernessUnited KingdomRecruiting
West Middlesex University Hospital
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IsleworthUnited KingdomRecruiting
Airedale General Hospital
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KeighleyUnited KingdomRecruiting
Kettering General Hospital
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KetteringUnited KingdomRecruiting
University Hospital Crosshouse
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KilmarnockUnited KingdomRecruiting
Leeds General Infirmary
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LeedsUnited KingdomRecruiting
University Hospitals Leicester, Glenfield
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LeicesterUnited KingdomRecruiting
Lincoln County Hospital
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LincolnUnited KingdomRecruiting
Royal Liverpool Hospital
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LiverpoolUnited KingdomRecruiting
Liverpool Heart and Chest Hospital
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LiverpoolUnited KingdomRecruiting
Imperial College Healthcare NHS Trust
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LondonUnited KingdomRecruiting
St. George's Hospital
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LondonUnited KingdomRecruiting
Chelsea And Westminster Hospital
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LondonUnited KingdomRecruiting
St. Bartholomew's Hospital
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LondonUnited KingdomRecruiting
Cleveland Clinic London Hospital
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LondonUnited KingdomRecruiting
St Thomas Hospital
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LondonUnited KingdomRecruiting
University Hospital Lewisham
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LondonUnited KingdomRecruiting
Maidstone & Tunbridge Wells Hospital
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MaidstoneUnited KingdomRecruiting
Wythenshawe Hospital
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ManchesterUnited KingdomRecruiting
North Manchester General Hospital
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ManchesterUnited KingdomRecruiting
The James Cook University Hospital
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MiddlesbroughUnited KingdomRecruiting
Freeman Hospital
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Newcastle upon TyneUnited KingdomRecruiting
Norfolk and Norwich University Hospital
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NorwichUnited KingdomRecruiting
Queens Medical Centre
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NottinghamUnited KingdomRecruiting
Kings Mill Hospital
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NottinghamUnited KingdomRecruiting
George Eliot Hospital
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NuneatonUnited KingdomRecruiting
Royal Alexandra Hospital
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PaisleyUnited KingdomRecruiting
Derriford Hospital
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PlymouthUnited KingdomRecruiting
Poole Hospital
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PooleUnited KingdomRecruiting
Queen Alexandra Hospital
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PortsmouthUnited KingdomRecruiting
Scunthorpe General Hospital
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ScunthorpeUnited KingdomRecruiting
Northern General Hospital
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SheffieldUnited KingdomRecruiting
Southampton General Hospital
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SouthamptonUnited KingdomRecruiting
Forth Valley Royal Hospital
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StirlingUnited KingdomRecruiting
Stepping Hill Hospital
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StockportUnited KingdomRecruiting
North Tees and Hartlepool NHS Foundation Trust
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Stockton-on-TeesUnited KingdomRecruiting
South Tyneside and Sunderland NHS Foundation Trust
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SunderlandUnited KingdomRecruiting
Morriston Hospital
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SwanseaUnited KingdomRecruiting
Musgrove Park Hospital
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TauntonUnited KingdomRecruiting
Torbay Hospital
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TorquayUnited KingdomRecruiting
Royal Cornwall Hospital
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TruroUnited KingdomRecruiting
Pinderfields Hospital
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WakefieldUnited KingdomRecruiting
Walsall Manor Hospital
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WalsallUnited KingdomRecruiting
South Warwickshire University NHS Foundation Trust
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WarwickUnited KingdomRecruiting
Watford General Hospital
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WatfordUnited KingdomRecruiting
Sandwell General Hospital
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West BromwichUnited KingdomRecruiting
New Cross Hospital
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WolverhamptonUnited KingdomRecruiting
Worcester Acute Hospitals NHS FT
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WorcesterUnited KingdomRecruiting
Yeovil District Hospital
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YeovilUnited KingdomWithdrawn
Frisius Medical Center
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LeeuwardenNetherlandsRecruiting
Radboud University Medical Center
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NijmegenNetherlandsRecruiting
Auckland City Hospital
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AucklandNew ZealandRecruiting
Christchurch Hospital
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ChristchurchNew ZealandRecruiting
Dunedin Hospital
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DunedinNew ZealandRecruiting
Institute of Cardiovascular Diseases
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KamenitzSerbiaRecruiting

This page is information, not medical advice. Discuss any trial with your doctor.