Research

Hormonal

GLP-1 receptor agonists (GLP-1 RAs) are dependent on residual beta-cell function and insulin availability, meaning that as Type 2 Diabetes progresses and beta-cell function declines, GLP-1 RAs lose efficacy and patients eventually require insulin therapy.

If you have Type 2 Diabetes, GLP-1 medications (like Ozempic or Trulicity) work by asking your pancreas to make more insulin. If your pancreas is still working well, these drugs are very effective. However, Type 2 Diabetes is progressive, and your pancreas naturally makes less insulin over time. Eventually, these drugs may stop working well enough on their own. At that point, adding insulin is not a failure; it is the necessary next step to keep your blood sugar safe and protect your body from complications.

GoodQualifiesHIGH confidence
because GLP-1 RAs are dependent upon beta-cell function and insulin availability, basal insulin and, eventually, prandial insulin are often required due to the progressive nature of T2D
Janet B. McGill et al. · Diabetes Therapy · 2024

Why this rating

Supported by cohort studies (Jones et al.) and general consensus on T2D pathophysiology (UKPDS data cited).

Source

The Current and Future Role of Insulin Therapy in the Management of Type 2 Diabetes: A Narrative Review

Janet B. McGill et al. · Diabetes Therapy · 2024

DOI 10.1007/s13300-024-01569-8

narrative_reviewCited 15×
Read the paper
DOI resolved against Crossref · corpus check 2026-06-10

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