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Inactive
Last updated: May 30, 2025

Subtilosin

  • User: Female
  • Hormonal: Non-Hormonal
  • Delivery type:
    • Vaginal Gel
  • Intended Duration:
    • Pericoital
  • Development Stage: Pre-Clinical
  • Developer(s)/researcher(s): Rutgers, University of Alberta, Universidad de Buenos Aires
Details
  • API: Subtilosin
  • Mechanism of Action:
    • Inhibition of Sperm Capacitation
    • Inhibition of Sperm Motility
    • Anti-Microbial
  • Regimen: On Demand
  • MPT: Potential MPT
  • Promising Attributes: Subtilosin may provide effective inhibition of sperm movement and activity, in addition to protection from infectious disease, without negatively impacting vaginal flora
Product Status

No Indication of Development after 2014. Spermicidal peptide development now focused on LL-37

History

2008: Spermicidal effect of the peptide subtilosin confirmed in pre-clinical evaluation

2012: Controlled, blinded non-clinical study finds consistent inhibition of human sperm motility and viability by subtilosin

2014: Subtilosin's antiviral effect against HSV2 documented, furthering its potential use as an MPT

Publications