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Updated: Jun 20, 2025

Establishment of Rat Models Mimicking Gender-affirming Hormone Therapies
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Hormonal male contraception.

Christina Wang1, Maria Cristina Meriggiola2, Hermann M Behre3

  • 1Division of Endocrinology, Department of Medicine, Harbor-UCLA Medical Center, and Clinical and Translational Science Institute, The Lundquist Institute, Torrance, California, USA.

Andrology
|July 17, 2024
PubMed
Summary
This summary is machine-generated.

Male hormonal contraception effectively suppresses sperm production by lowering key hormones, offering a reversible and safe alternative to female methods. This approach is nearing availability for men, marking a significant advancement in reproductive health.

Keywords:
gonadotropin releasing hormone analogsmodified androgensprogestinspermatogenesis suppressiontestosterone

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Area of Science:

  • Reproductive Endocrinology
  • Male Contraception
  • Hormonal Regulation

Background:

  • Exogenous hormone administration suppresses luteinizing hormone and follicle stimulating hormone.
  • This leads to reduced intratesticular testosterone, reversibly inhibiting spermatogenesis.
  • A significant decrease in sperm output prevents pregnancy.

Purpose of the Study:

  • To evaluate the efficacy and safety of hormonal male contraception.
  • To assess hormonal interventions for reversible suppression of male fertility.
  • To review advancements in male contraceptive development.

Main Methods:

  • Administration of exogenous hormones, including testosterone alone or with progestins or GnRH analogs.
  • Monitoring of hormonal levels and sperm output in clinical trials.
  • Comparison of contraceptive efficacy with established female methods.

Main Results:

  • Hormonal contraceptives effectively suppress sperm output.
  • Adverse events are minimal and generally anticipated.
  • Efficacy in preventing pregnancy is comparable to female contraceptive methods.

Conclusions:

  • Hormone combinations for male contraception are in late-stage clinical trials.
  • These methods offer a promising new reversible contraception option for men.
  • Insights from this development can guide future targeted male fertility regulation strategies.