Active
Last updated: April 9, 2025

Oui

Chitosan Vaginal Tablets

  • User: Female
  • Hormonal: Non-Hormonal
  • Delivery type:
    • Vaginal - Other
  • Intended Duration:
    • Pericoital
  • Development Stage: Pre-Clinical
  • Developer(s)/researcher(s): Cirqle Biomedical, Organon
Details
  • API: Chitosan
  • Target: Mucin
  • Mechanism of Action:
    • Cervical Mucus Changes
  • Regimen: On Demand
  • MPT: Not Potential MPT
  • Promising Attributes: Developers suggest that an on-demand non hormonal alternative to spermicides or barrier methods may reach a portion of the contraceptive market moving away from both traditional barrier methods and hormonal options.
Product Status

Active Pre-Clinical Research

History

2019: Cirqle Biomedical completes first seed funding round, announces intent to further develop a chitosan-based on-demand contraceptive that will thicken  cervical mucus to prevent sperm movement into the uterus. 
2020: Cirqle receives support from NIH and EU Eurostars (a program funded by the European Union) to advance pre-clinical development
2022: Cirqle announces milestone partnership with Organon to further develop and commercialize their product, Oui.
2023: Cirqle announces a 98% average decrease in sperm reaching the uterus in sheep who have had Oui's prophylactic gel placed on their cervix, compared to untreated sheep

Publications

Additional Information