Beta Blocker De-prescription Following Coronary Artery Bypass Graft Surgery (BEEFBURGER Trial).

NCT ID: NCT04788186

Last Updated: 2022-11-09

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Clinical Phase

PHASE4

Total Enrollment

200 participants

Study Classification

INTERVENTIONAL

Study Start Date

2021-08-23

Study Completion Date

2025-08-31

Brief Summary

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Beta-blockers have the greatest cardiovascular impact in patients with reduced heart function/heart failure and in reducing the peri-operative risk of atrial fibrillation. In patients without these high-risk features treated with coronary artery bypass graft (CABG) surgery, their continued long-term role is unclear.

Detailed Description

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This is an open-label, non-inferiority, randomized comparison of beta-blocker continuation versus de-prescription at the 6-8 week follow-up following isolated and uncomplicated CABG at Royal University Hospital, Saskatoon.

Patients treated with isolated CABG (without valve repair/replacement) and discharged on a beta-blocker are eligible for recruitment if they have preserved systolic function (EF ≥45%) and no history of heart failure, atrial fibrillation/flutter, or an alternate compelling indication for beta-blocker therapy. After obtaining informed consent, eligible patients are randomly assigned at 6-8 weeks to one of the two treatment groups: continued beta-blocker therapy per their usual clinical care OR beta-blocker de-prescription as per the study protocol.

The primary objective of this study is to demonstrate recruitment feasibility for beta-blocker de-prescription 6-8 weeks following uncomplicated CABG. Exploratory outcomes include the composite of all-cause mortality, myocardial infarction, stroke, arrhythmia, and cardiovascular-related hospitalization (congestive heart failure, recurrent ischemia, arrhythmia \[supraventricular including atrial fibrillation, and ventricular\], syncope or need for pacemaker) over a 3-year follow up duration.

Other exploratory outcomes will include a change in the patient reported quality of life using the Short Form (SF) 36 and Euro Qol (EQ) 5D questionnaires and angina score using the Seattle Angina Questionnaire (SAQ).

Conditions

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Coronary Artery Disease Acute Myocardial Infarction Coronary Artery Stenosis ST Elevation Myocardial Infarction Non-ST Elevation Myocardial Infarction (NSTEMI)

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

open-label, randomized pilot comparison
Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Continue beta blocker therapy

Participants in this arm will continue their beta blocker therapy as per their usual clinical care

Group Type NO_INTERVENTION

No interventions assigned to this group

De-prescribe beta blocker therapy

Beta blocker therapy will be de-prescribed in this arm

Group Type EXPERIMENTAL

De-prescribe beta blocker therapy

Intervention Type DRUG

Participants will be de-prescribed for beta-blocker therapy.

De-prescription will be performed as follows:

* Half of pre-randomization dose for the first 3 days, then
* Half of the above dose for the next 3 days, then discontinue

Interventions

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De-prescribe beta blocker therapy

Participants will be de-prescribed for beta-blocker therapy.

De-prescription will be performed as follows:

* Half of pre-randomization dose for the first 3 days, then
* Half of the above dose for the next 3 days, then discontinue

Intervention Type DRUG

Other Intervention Names

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De-prescription

Eligibility Criteria

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Inclusion Criteria

* Age ≥ 18 years treated with index isolated CABG
* Able to consent to study
* On beta blocker therapy at the 6-8week visit
* LV systolic function (≥45% assessed within 6months of CABG date)

Exclusion Criteria

* Prior heart failure with reduced ejection fraction (LVEF \<45%)
* Pre- or peri-operative atrial fibrillation or flutter
* Peri-CABG stroke
* Unable to follow-up
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Canadian VIGOUR Centre

OTHER

Sponsor Role collaborator

University of Saskatchewan

OTHER

Sponsor Role lead

Responsible Party

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Jay Shavadia

Assistant Professor Cardiology

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Haissam Haddad, MD, FRCPC

Role: STUDY_CHAIR

University of Saskatchewan

Locations

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Royal University Hospital

Saskatoon, Saskatchewan, Canada

Site Status RECRUITING

Countries

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Canada

Central Contacts

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Jay Shavadia, MD

Role: CONTACT

3069862260

Natasha B Mostat, MSc

Role: CONTACT

3063215708

Facility Contacts

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Jay Shavadia, MD

Role: primary

3069862260

References

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Macle L, Cairns J, Leblanc K, Tsang T, Skanes A, Cox JL, Healey JS, Bell A, Pilote L, Andrade JG, Mitchell LB, Atzema C, Gladstone D, Sharma M, Verma S, Connolly S, Dorian P, Parkash R, Talajic M, Nattel S, Verma A; CCS Atrial Fibrillation Guidelines Committee. 2016 Focused Update of the Canadian Cardiovascular Society Guidelines for the Management of Atrial Fibrillation. Can J Cardiol. 2016 Oct;32(10):1170-1185. doi: 10.1016/j.cjca.2016.07.591. Epub 2016 Sep 6.

Reference Type BACKGROUND
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Gillis AM, Skanes AC; CCS Atrial Fibrillation Guidelines Committee. Canadian Cardiovascular Society atrial fibrillation guidelines 2010: implementing GRADE and achieving consensus. Can J Cardiol. 2011 Jan-Feb;27(1):27-30. doi: 10.1016/j.cjca.2010.11.003.

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Thaper A, Kulik A. Rationale for administering beta-blocker therapy to patients undergoing coronary artery bypass surgery: a systematic review. Expert Opin Drug Saf. 2018 Aug;17(8):805-813. doi: 10.1080/14740338.2018.1504019. Epub 2018 Jul 27.

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Bjorklund E, Nielsen SJ, Hansson EC, Karlsson M, Wallinder A, Martinsson A, Tygesen H, Romlin BS, Malm CJ, Pivodic A, Jeppsson A. Secondary prevention medications after coronary artery bypass grafting and long-term survival: a population-based longitudinal study from the SWEDEHEART registry. Eur Heart J. 2020 May 1;41(17):1653-1661. doi: 10.1093/eurheartj/ehz714.

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Brinkman W, Herbert MA, O'Brien S, Filardo G, Prince S, Dewey T, Magee M, Ryan W, Mack M. Preoperative beta-blocker use in coronary artery bypass grafting surgery: national database analysis. JAMA Intern Med. 2014 Aug;174(8):1320-7. doi: 10.1001/jamainternmed.2014.2356.

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Booij HG, Damman K, Warnica JW, Rouleau JL, van Gilst WH, Westenbrink BD. beta-blocker Therapy is Not Associated with Reductions in Angina or Cardiovascular Events After Coronary Artery Bypass Graft Surgery: Insights from the IMAGINE Trial. Cardiovasc Drugs Ther. 2015 Jun;29(3):277-85. doi: 10.1007/s10557-015-6600-y.

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Other Identifiers

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UofS REB Bio#2639

Identifier Type: -

Identifier Source: org_study_id

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