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Canadian Journal of Cardiology

Is it time to relitigate SGLT2 Inhibitor dose for heart failure?

  • Jonathan G Howlett
    Correspondence
    Corresponding Author: Jonathan Howlett, , 403 944 3232 (bus), 403 973 3833 (cell)
    Affiliations
    Clinical Professor of Medicine, Cumming School of Medicine, University of Calgary, Libin Cardiovascular Institute, Room C838, 1403- 29th Street NW Calgary, T2N2Y9
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Published:March 06, 2023DOI:https://doi.org/10.1016/j.cjca.2023.03.001
      Over the past 40 years, we have observed the introduction of several medical therapies for heart failure with reduced ejection fraction (HFrEF). More recently, effective medical therapy (Goal Directed Medical Therapy, or GDMT)for patients suffering from heart failure with preserved ejection fraction (HFpEF) has been identified in the form of sodium/glucose cotransporter 2 inhibitors (SGLT2 inhibitors)(

      Mancini GBJ, O'Meara E, Zieroth S, Bernier M, Cheng AYY, Cherney DZI, et al. 2022 Canadian Cardiovascular Society Guideline for Use of GLP-1 Receptor Agonists and SGLT2 Inhibitors for Cardiorenal Risk Reduction in Adults. Can J Cardiol. 2022;38(8):1153-1167.

      ). There has also been recognition that timely and aggressive GDMT titration to target doses leads to better outcomes(
      • Kimmoun A
      • Cotter G
      • Davison B
      • Takagi K
      • Addad F
      • Celutkiene J
      • et al.
      Safety, Tolerability and efficacy of Rapid Optimization, helped by NT-proBNP and GDF-15, of Heart Failure therapies (STRONG-HF): rationale and design for a multicentre, randomized, parallel-group study.
      ). This becomes more complex as the number of drug up titrations increases (such as with beta blockade at 4 doses), and corresponds to lower target dose achievement, even in Canadian centres of excellence(
      • Poon S
      • Rojas-Fernandez C
      • Virani S
      • Honos G
      • McKelvie R
      The Canadian Heart Failure (CAN-HF) Registry: A Canadian Multicentre, Retrospective Study of Inpatients With Heart Failure.
      ,
      • Wahid M
      • Aghanya V
      • Sepehrvand N
      • Dover DC
      • Kaul P
      • Ezekowitz J
      Use of Guideline-Directed Medical Therapy in Patients Aged ≥ 65 Years After the Diagnosis of Heart Failure: A Canadian Population-Based Study.
      ). Thus, there is interest in use of simplified dosage regimens, provided there is no significant benefit left unrealized(
      • Miller RJH
      • Howlett JG
      • Fine NM
      A Novel Approach to Medical Management of Heart Failure With Reduced Ejection Fraction.
      ). In order to define this tension, one must be able to identify the optimal dosage for any given medication.
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      References

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