Effects of Rosuvastatin on Aortic Stenosis Progression (ASTRONOMER)

This study has been completed.
Ottawa Heart Institute Research Corporation
Information provided by:
ClinicalTrials.gov Identifier:
First received: November 25, 2008
Last updated: December 2, 2010
Last verified: December 2010
The purpose of this study is to assess the effects of rosuvastatin compared to usual care in patients diagnosed with aortic valvular stenosis. Patients must have a diagnosis of mild to moderate aortic stenosis (AS) and no clinical indication for the use of cholesterol lowering agents. A multi-centre, randomized, double-blind, placebo-controlled study, with a two year recruitment period, and a treatment duration of a minimum of 3 years from the time of the last patient randomized to a maximum of 5 years.

Condition Intervention Phase
Aortic Stenosis
Drug: Rosuvastatin
Drug: Placebo
Phase 3

Study Type: Interventional
Study Design: Allocation: Randomized
Endpoint Classification: Efficacy Study
Intervention Model: Parallel Assignment
Masking: Double Blind (Subject, Caregiver, Investigator)
Primary Purpose: Treatment
Official Title: Effect of Cholesterol Lowering on the Progression of Aortic Stenosis in Patients With Mild to Moderate Aortic Stenosis (ASTRONOMER)Aortic Stenosis Progression Observation Measuring Effects of Rosuvastatin and The Sub-Study Protocol.

Resource links provided by NLM:

Further study details as provided by AstraZeneca:

Primary Outcome Measures:
  • The changes in transvalvular aortic velocities and the changes in aortic valve area. [ Time Frame: Between baseline and close-out measurments. ] [ Designated as safety issue: No ]

Secondary Outcome Measures:
  • The incidence and severity of adverse events, the clinically relevant changes in echocardiograms, and laboratory analysis will be compared between the two treatment groups. [ Time Frame: Baseline and minimum of 3 year follow-up. ] [ Designated as safety issue: No ]
  • The incidence and severity of adverse events, the clinically relevant changes in echocardiograms, and laboratory analysis will be compared between the two treatment groups. [ Time Frame: Between baseline and close-out measurments. ] [ Designated as safety issue: Yes ]

Estimated Enrollment: 378
Study Start Date: November 2002
Study Completion Date: September 2008
Primary Completion Date: September 2008 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Active Comparator: 1
Rosuvastatin 40 mg
Drug: Rosuvastatin
40 mg, oral, single dose
Placebo Comparator: 2
Drug: Placebo
oral, single dose


Ages Eligible for Study:   18 Years to 82 Years
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Mild to moderate AS defined by peak Doppler aortic valve velocity 2.5 to 4 m/sec
  • Baseline LDL-C value must be within targeted level for all risk categories according to the Canadian Guidelines
  • Baseline triglyceride levels must be within target level for the risk categories

Exclusion Criteria:

  • Very mild AS defined by peak Doppler AS velocity <2.5m/sec, because the rate of progression is not well defined; Females of child bearing potential who do not practice adequate contraception.
  • Severe AS defined by peak Doppler AS velocity > 4m/sec. These patients are excluded because they will have a high probability of aortic valve replacement even without further AS progression.
  • Greater than moderate aortic regurgitation, defined as aortic jet width to aortic outflow tract ratio >0.45; Patients with diabetes or with a fasting blood sugar level > 7.0 mmol/L (must be confirmed with one repeat assay within 14 days).
  • Significant concomitant mitral valve disease, defined by > moderate mitral regurgitation (MR) or mitral valve area (MVA)< 1.5 cm2; A very high risk of CAD (10 year risk > 30%), according to the Canadian Guidelines.
  Contacts and Locations
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Please refer to this study by its ClinicalTrials.gov identifier: NCT00800800

Canada, Alberta
Research site
Calgary, Alberta, Canada
Research site
Edmonton, Alberta, Canada
Canada, British Columbia
Research site
Surrey, British Columbia, Canada
Research site
Vancouver, British Columbia, Canada
Research site
Victoria, British Columbia, Canada
Canada, Manitoba
Research site
Edmonton, Manitoba, Canada
Canada, Ontario
Research site
Brampton, Ontario, Canada
Research site
Cambridge, Ontario, Canada
Research site
Kitchener, Ontario, Canada
Research site
Montreal, Ontario, Canada
Research site
Ottawa, Ontario, Canada
Research site
Toronto, Ontario, Canada
Canada, Quebec
Research site
Montreal, Quebec, Canada
Research site
Halifax, Canada
Research site
St. John's, Canada
Sponsors and Collaborators
Ottawa Heart Institute Research Corporation
  More Information

Publications automatically indexed to this study by ClinicalTrials.gov Identifier (NCT Number):
Responsible Party: Andrew Vieira, AstraZeneca Canada
ClinicalTrials.gov Identifier: NCT00800800     History of Changes
Other Study ID Numbers: DC-452-0003 
Study First Received: November 25, 2008
Last Updated: December 2, 2010
Health Authority: Canada: Canadian Institutes of Health Research
Canada: Ethics Review Committee
Canada: Health Canada

Keywords provided by AstraZeneca:
progression of aortic stenosis

Additional relevant MeSH terms:
Aortic Valve Stenosis
Constriction, Pathologic
Disease Progression
Cardiovascular Diseases
Disease Attributes
Heart Diseases
Heart Valve Diseases
Pathologic Processes
Pathological Conditions, Anatomical
Ventricular Outflow Obstruction
Rosuvastatin Calcium
Anticholesteremic Agents
Enzyme Inhibitors
Hydroxymethylglutaryl-CoA Reductase Inhibitors
Hypolipidemic Agents
Lipid Regulating Agents
Molecular Mechanisms of Pharmacological Action

ClinicalTrials.gov processed this record on May 26, 2016