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Low-density lipoprotein cholesterol response to statins according to comorbidities and co-medications: A

Giulia Corn1, Marie Lund2, Niklas W Andersson3

  • 1Department of Epidemiology Research, Statens Serum Institut, Copenhagen, Denmark.; Danish Cancer Institute, Statistics and Data Analysis, Copenhagen, Denmark.

American Heart Journal
|May 6, 2024
PubMed

Insights

Statin therapy response varies, but most conditions and medications have little effect. Metformin use significantly enhances LDL-C reduction, potentially allowing for lower statin doses in patients taking this drug.

Area of Science:

  • Cardiovascular Medicine
  • Pharmacology
  • Clinical Pharmacy

Background:

  • Statin therapy effectiveness in lowering low-density lipoprotein cholesterol (LDL-C) shows significant individual variability.
  • This variability may be influenced by co-morbidities and co-medications, impacting treatment strategies.
  • Investigating these factors is crucial for optimizing statin therapy in diverse patient populations.

Purpose of the Study:

  • To determine if common co-morbidities and co-medications significantly impact individual patient responses to statin therapy.
  • To identify specific patient subgroups that may benefit from adjusted statin regimens based on their health status and concomitant drug use.

Main Methods:

  • A Danish register-based cohort study of 89,006 patients initiating simvastatin or atorvastatin between 2008-2018.
  • LDL-C reduction was calculated as percentage reduction difference (PRD) from pre-statin to on-statin levels.
  • Linear regression analyzed PRD across 175 comorbidities and 99 co-medications, assessing statistical and clinical significance (PRD ≥ 5%).

Main Results:

  • Concomitant use of oral blood-glucose lowering drugs, primarily metformin, was linked to a clinically significant and statistically important enhanced statin response (PRD 5.18%).
  • No other comorbidity or co-medication met the criteria for a clinically important effect on statin response.
  • Collectively, comorbidities and co-medications explained only 1.7% of the total population variance in statin response.

Conclusions:

  • Most studied comorbidities and co-medications do not clinically impact statin response, suggesting general treatment regimens are appropriate.
  • Metformin use is associated with significantly improved LDL-C response to statins.
  • This finding suggests potential for using lower statin doses in patients concurrently treated with metformin.
Abstract

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