Related Experiment Video
Updated: Jul 15, 2026

A Modified Two Kidney One Clip Mouse Model of Renin Regulation in Renal Artery Stenosis
Published on: October 26, 2020
Pharmacogenomics of renin angiotensin system inhibitors in coronary artery disease
James P Tsikouris1, Michael J Peeters
1School of Pharmacy, University of Pittsburgh, 3501 Terrace Street, 808 Salk Hall, Pittsburgh, PA 15261, USA. jpt16@pitt.edu
Abstract:
Renin Angiotensin System (RAS) inhibitors comprise some of the most commonly used medications in coronary artery disease (CAD) and its related syndromes. Unfortunately, significant inter-patient variability seems likely in response to these agents; of which, the influence of genetic determinants is of interest. This review summarizes the available RAS inhibitor pharmacogenomic studies which have evaluated RAS polymorphisms that either elucidate mechanism via surrogate endpoint measurements, or predict efficacy via clinical outcomes in CAD related syndromes.Regardless of the endpoint, none of the RAS genotypes conclusively predicts efficacy of RAS inhibitors. In fact, the results of the pharmacogenomic studies were often in direct conflict with one another. Varied results appear due to methodological limitations (e.g., inadequate study power, genotyping error, methods of endpoint measurement), study conceptualization (e.g., overestimating the contribution of polymorphism to disease, lack of haplotype approach), and differences between studies (e.g., genotype frequency, study subject characteristics, the specific medication and dose used). Thus investigators should consider the various methodological limitations to improve upon the current approach to RAS inhibitor pharmacogenomic research in the vast CAD population.
Insights
Genetic factors do not reliably predict how patients respond to Renin Angiotensin System (RAS) inhibitors for coronary artery disease (CAD). Current pharmacogenomic studies show conflicting results due to methodological issues, hindering personalized treatment strategies.
Area of Science:
- Pharmacogenomics
- Cardiovascular Medicine
- Genetics
Background:
- Renin Angiotensin System (RAS) inhibitors are widely used for coronary artery disease (CAD).
- Significant variability exists in patient responses to these medications.
- Genetic factors are being investigated as a source of this variability.
Purpose of the Study:
- To review pharmacogenomic studies on RAS inhibitors in CAD.
- To evaluate if RAS polymorphisms predict efficacy or elucidate mechanisms.
- To identify limitations in current research approaches.
Main Methods:
- Systematic review of published pharmacogenomic studies.
- Analysis of studies using surrogate endpoints and clinical outcomes.
- Evaluation of reported RAS polymorphisms and their association with RAS inhibitor response.
Main Results:
- No RAS genotypes conclusively predicted the efficacy of RAS inhibitors across studies.
- Conflicting results were frequently observed between different pharmacogenomic studies.
- Methodological limitations, study design, and population differences contributed to inconsistent findings.
Conclusions:
- Current evidence does not support using RAS genotypes to predict RAS inhibitor efficacy in CAD.
- Significant methodological limitations plague existing pharmacogenomic research in this area.
- Future research requires improved study designs and standardization to overcome inconsistencies and advance personalized medicine for CAD patients.
Related Concept Videos
Heart Failure Drugs: Inhibitors of Renin-Angiotensin System
Antihypertensive Drugs: Direct Renin Inhibitors
Antihypertensive Drugs: Angiotensin-Converting Enzyme Inhibitors
Pharmacogenetic Phenotypes: Alterations in Pharmacokinetics, Drug Targets and Biologic Milieu
Pharmacogenomics: Identification of New Drug Targets
Antihypertensive Drugs: Angiotensin II Receptor Blockers