What is the difference between guideline‑directed medical therapy (GDMT) and foundational medical therapy (FMT) for heart failure with reduced ejection fraction?

GDMT and FMT Are the Same Thing

GDMT (guideline-directed medical therapy) and FMT (foundational medical therapy) are synonymous terms referring to the same evidence-based treatment approach for heart failure with reduced ejection fraction (HFrEF). The term "foundational GDMTs" is used interchangeably in the literature to emphasize these are the core, essential medications that form the foundation of HFrEF treatment 1.

The Four Pillars of GDMT/FMT

Both terms describe the same quadruple therapy regimen consisting of:

• RAS inhibitors or ARNI (ACE inhibitors, ARBs, or sacubitril-valsartan)
• Beta-blockers (evidence-based formulations)
• Mineralocorticoid receptor antagonists (MRAs)
• SGLT2 inhibitors (sodium-glucose cotransporter-2 inhibitors)

1, 2

Clinical Impact

This quadruple therapy reduces mortality risk by 73% over 2 years compared to no treatment. For a 55-year-old patient, transitioning from traditional dual therapy (ACE inhibitor + beta-blocker) to full quadruple therapy extends life expectancy by approximately 6 years 1.

Terminology Context

The term "foundational" is used to emphasize that these four drug classes represent the essential baseline therapy that all eligible HFrEF patients should receive. This distinguishes them from additional or adjunctive therapies that may be added based on specific clinical phenotypes or inadequate response to the foundational medications 1.

In clinical practice, use these terms interchangeably—they represent the same treatment paradigm focused on maximizing mortality and morbidity reduction through evidence-based quadruple therapy.