Targeting thermogenesis and related pathways in anti-obesity drug discovery

John C Clapham1, Jonathan R S Arch

  • 1AstraZeneca R&D, Alderley Park, Macclesfield and Clore Laboratory, University of Buckingham, Buckingham, UK. john.clapham@astrazeneca.com

Insights

This review explores increasing calorie expenditure (thermogenesis) as a strategy for obesity pharmacotherapy. It highlights challenges in validating thermogenic drugs with human data, despite the unmet need for effective obesity treatments.

Area of Science:

  • Pharmacology and metabolic research focusing on obesity treatment.
  • Exploration of thermogenesis as a therapeutic target for weight management.

Background:

  • The global obesity epidemic presents a significant unmet therapeutic need.
  • Current treatments like lifestyle modification and bariatric surgery have limitations.
  • The history of obesity pharmacotherapy is marked by safety concerns and regulatory withdrawals.

Purpose of the Study:

  • To review the pharmacological approach of increasing calorie expenditure (thermogenesis) for obesity.
  • To discuss regulatory requirements and the scientific rationale for targeting thermogenesis.
  • To examine potential strategies for increasing human thermogenesis.

Main Methods:

  • Review of existing literature on obesity pharmacotherapy and thermogenesis.
  • Analysis of the challenges in validating thermogenic drugs in human studies.
  • Discussion of abnormal metabolic responses post-weight loss contributing to regain.

Main Results:

  • Limited success and safety concerns plague current pharmacological obesity treatments.
  • Increasing thermogenesis is a promising, albeit challenging, approach.
  • Accumulating sufficient human data to validate thermogenic drug efficacy remains a key hurdle.

Conclusions:

  • Targeting thermogenesis offers a potential avenue for novel obesity pharmacotherapy.
  • Overcoming challenges in human data acquisition is crucial for drug development.
  • Further research is needed to validate thermogenic strategies for long-term obesity management.

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