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Brexanolone (ZULRESSO™) is a novel neurosteroid treatment for postpartum depression (PPD). It is an intravenously administered GABAA receptor positive allosteric modulator, now approved in the USA for adult women.

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Area of Science:

  • Neuroscience
  • Pharmacology
  • Psychiatry

Background:

  • Postpartum depression (PPD) is a significant mood disorder affecting women after childbirth.
  • Brexanolone, a neuroactive steroid, targets GABAA receptors, modulating neurotransmission implicated in PPD.
  • The development aimed to provide a new therapeutic option for this condition.

Purpose of the Study:

  • To summarize the key developmental milestones of brexanolone.
  • To highlight the regulatory pathway leading to its approval for PPD treatment.
  • To provide an overview of brexanolone's journey from discovery to market.

Main Methods:

  • Review of preclinical and clinical development data.
  • Analysis of regulatory submissions and approvals.
  • Summary of formulation development and manufacturing considerations.

Main Results:

  • Brexanolone, an allopregnanolone formulation, was developed as an intravenous treatment.
  • It functions as a positive allosteric modulator of GABAA receptors.
  • Brexanolone received its first global approval in the USA in March 2019 for PPD in adult women.

Conclusions:

  • Brexanolone represents a significant advancement in PPD pharmacotherapy.
  • Its development highlights the potential of neurosteroids in treating mood disorders.
  • The approval marks a milestone in addressing unmet needs in postpartum mental health.