At what Hemoglobin A1c (HbA1c) level should Jardiance (Empagliflozin) not be initiated?

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Last updated: June 17, 2025View editorial policy

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From the Research

Jardiance (empagliflozin) should not be initiated in patients with a Hemoglobin A1c (HbA1c) level below 7%. This medication is indicated for adults with type 2 diabetes who have inadequate glycemic control despite diet and exercise, typically when HbA1c is 7% or higher. Starting Jardiance in patients with lower HbA1c levels may increase the risk of hypoglycemia without providing significant additional benefits.

Key Considerations

  • Before initiating Jardiance, healthcare providers should assess renal function, as the medication is not recommended for patients with severe renal impairment (eGFR less than 30 mL/min/1.73m²) 1.
  • Jardiance works by inhibiting sodium-glucose cotransporter-2 (SGLT2) in the kidneys, which increases urinary glucose excretion and lowers blood glucose levels.
  • This mechanism is most beneficial when there is significant hyperglycemia present, making the HbA1c threshold important for appropriate patient selection and optimal therapeutic outcomes.

Benefits and Risks

  • The use of SGLT2 inhibitors like Jardiance has been associated with a reduced risk of major cardiovascular events, hospitalization for heart failure, and cardiovascular mortality 1.
  • However, these medications can also increase the risk of diabetic ketoacidosis, particularly in patients with a history of pancreatitis or those taking other medications that increase the risk of ketoacidosis.

Patient Selection

  • Patients with type 2 diabetes and established cardiovascular disease or at high risk of cardiovascular events may benefit from the use of SGLT2 inhibitors like Jardiance 1.
  • The decision to initiate Jardiance should be based on individual patient factors, including renal function, cardiovascular risk, and the presence of other comorbidities.

Clinical Evidence

  • A study published in the Lancet in 2021 highlighted the benefits of SGLT2 inhibitors and GLP-1 receptor agonists in patients with type 2 diabetes, including their ability to reduce the risk of major cardiovascular events and improve renal outcomes 1.
  • The study also noted that these medications should be used with caution in patients with a history of pancreatitis or medullary thyroid cancer.

Professional Medical Disclaimer

This information is intended for healthcare professionals. Any medical decision-making should rely on clinical judgment and independently verified information. The content provided herein does not replace professional discretion and should be considered supplementary to established clinical guidelines. Healthcare providers should verify all information against primary literature and current practice standards before application in patient care. Dr.Oracle assumes no liability for clinical decisions based on this content.

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