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An update on the Diabetes Prevention Program.

Robert E Ratner1,

  • 1MedStar Research Institute, Hyattsville, Maryland, USA.

Endocrine Practice : Official Journal of the American College of Endocrinology and the American Association of Clinical Endocrinologists
|April 22, 2006
PubMed
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The Diabetes Prevention Program (DPP) found that lifestyle changes and metformin significantly reduced diabetes risk. Both interventions were cost-effective, delaying or preventing diabetes development.

Area of Science:

  • Clinical Trials
  • Preventive Medicine
  • Endocrinology

Background:

  • The Diabetes Prevention Program (DPP) is a large, diverse trial investigating methods to prevent type 2 diabetes.
  • Impaired glucose tolerance is a precursor state to type 2 diabetes.

Purpose of the Study:

  • To summarize the primary findings of the Diabetes Prevention Program (DPP).
  • To describe the ongoing 5-year follow-up study assessing long-term outcomes.

Main Methods:

  • Randomized controlled trial involving over 3,800 participants with impaired glucose tolerance.
  • Interventions included intensive lifestyle changes, metformin, troglitazone, or placebo.
  • Troglitazone arm discontinued early due to safety concerns.

Main Results:

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  • Intensive lifestyle intervention reduced diabetes risk by 58%; metformin reduced risk by 31% compared to placebo.
  • Both interventions were deemed cost-effective for diabetes prevention.
  • The trial was terminated early due to significant benefits observed in intervention groups.

Conclusions:

  • The DPP demonstrated that both intensive lifestyle modifications and metformin are effective and cost-effective strategies for delaying or preventing type 2 diabetes.
  • Further follow-up is needed to assess the long-term durability of these interventions and their impact on microvascular and macrovascular complications.