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Related Experiment Videos

Possible thermogenesis with dexfenfluramine.

C Roongpisuthipong1, O Panpakdee, A Boontawee

  • 1Department of Medicine, Faculty of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok, Thailand.

Journal of the Medical Association of Thailand = Chotmaihet Thangphaet
|March 24, 1999
PubMed
Summary

Dexfenfluramine significantly enhanced weight loss in obese patients when combined with behavioral modification. This obesity treatment showed greater fat reduction and increased thermogenesis compared to placebo and control groups.

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Area of Science:

  • Pharmacology and Therapeutics
  • Obesity Research
  • Behavioral Medicine

Background:

  • Obesity is a complex health issue requiring multifaceted treatment approaches.
  • Behavioral modification is a cornerstone of weight management, but often needs adjunct therapies.
  • Pharmacological interventions can potentially enhance the efficacy of lifestyle changes in obese individuals.

Purpose of the Study:

  • To evaluate the efficacy of dexfenfluramine as an adjunct to behavioral modification for weight loss in obese patients.
  • To compare the effects of dexfenfluramine, placebo, and behavioral modification alone on body weight, body composition, and energy intake.
  • To assess the impact of dexfenfluramine on thermogenesis and metabolic parameters in the context of a weight loss program.

Main Methods:

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  • A 12-week, double-blind, placebo-controlled study involving 50 obese patients (BMI > 25 kg/m2).
  • Randomization into three groups: control (behavioral modification only), placebo (behavioral modification + placebo), and dexfenfluramine (behavioral modification + dexfenfluramine 30 mg/day).
  • All participants received weekly behavioral modification sessions and daily monitoring of food intake, physical activity, and behavior.

Main Results:

  • All groups exhibited significant reductions in energy intake and increases in physical activity.
  • Dexfenfluramine group showed significantly greater cumulative weight loss (8.3 kg) compared to placebo (3.3 kg) and control (2.9 kg) groups (p < 0.001).
  • Dexfenfluramine treatment led to significant reductions in skinfold thickness and body fat percentage, likely due to increased thermogenesis, without adverse effects on vital signs or blood profiles.

Conclusions:

  • Dexfenfluramine significantly augments weight loss achieved through behavioral modification in obese individuals.
  • The enhanced weight loss with dexfenfluramine is associated with increased thermogenesis and improved body composition.
  • Dexfenfluramine is a safe and effective adjunct therapy for obesity management when combined with comprehensive lifestyle interventions.