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Pharmacologic Randomized Clinical Trials in Prevention of Type 2 Diabetes

William C Knowler1, Jill P Crandall2

  • 1National Institute of Diabetes and Digestive and Kidney Diseases, Phoenix, AZ, USA. knowler@nih.gov.

Current Diabetes Reports
|December 4, 2019
PubMed
Abstract

Insights

Pharmacologic interventions effectively prevent type 2 diabetes in high-risk adults. However, long-term benefits beyond diabetes prevention are limited, and optimal drug choices remain unclear.

Area of Science:

  • Endocrinology
  • Pharmacology
  • Preventive Medicine

Background:

  • Type 2 diabetes is a growing global health concern.
  • Lifestyle and pharmacologic interventions are explored for prevention in high-risk individuals.
  • Randomized clinical trials (RCTs) evaluate drug efficacy in preventing diabetes.

Purpose of the Study:

  • To review major RCTs of pharmacologic interventions for type 2 diabetes prevention.
  • To categorize drugs based on their proposed mechanisms of action in diabetes prevention.
  • To assess the evidence for broader health benefits of these interventions.

Main Methods:

  • Systematic review of RCTs focusing on pharmacologic prevention of type 2 diabetes.
  • Categorization of drugs by their primary mechanism of action (e.g., insulin sensitization, incretin-based therapies).
  • Analysis of primary outcomes (diabetes incidence) and secondary outcomes (complications, mortality).

Main Results:

  • Several drug classes demonstrate effectiveness in reducing diabetes incidence.
  • Evidence for long-term benefits, including complication reduction and mortality decrease, is limited.
  • Both pharmacological agents and lifestyle interventions are proven effective for prevention and delay.

Conclusions:

  • Pharmacologic interventions are viable options for preventing type 2 diabetes in high-risk populations.
  • The long-term advantages and optimal timing for drug initiation require further investigation.
  • Clinical decisions on drug selection and treatment timing are not yet well-defined.
Keywords:
Pharmacologic preventionRandomized clinical trialsType 2 diabetes

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