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Area of Science:

  • Pharmacology and Endocrinology
  • Biochemistry of Androgen Receptor Modulation

Background:

  • Selective androgen receptor modulators (SARMs) are designed for anabolic effects with reduced androgenicity.
  • SARMs offer potential therapeutic applications for muscle wasting, osteoporosis, hypogonadism, and frailty due to tissue selectivity and oral availability.

Purpose of the Study:

  • To review the chemical basis, clinical potential, and regulatory hurdles of SARMs.
  • To assess the current status of SARMs in clinical development for aging-related conditions.

Main Methods:

  • Literature review of SARM chemistry, preclinical data, and clinical trial outcomes.
  • Analysis of efficacy in increasing lean body mass and functional parameters.
  • Evaluation of safety profiles, including hepatotoxicity and cardiovascular risks.

Main Results:

  • SARMs effectively increase lean body mass in clinical trials.
  • Consistent improvements in functional outcomes (strength, mobility) are limited.
  • Significant safety concerns, including hepatotoxicity and cardiovascular risks, persist.

Conclusions:

  • SARMs show potential for niche applications in aging populations, the frail, and those with lean mass loss.
  • Widespread regulatory approval requires further trials demonstrating both efficacy and long-term safety.
  • Ongoing research focuses on SARMs for sarcopenia and age-related muscle decline.