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Last updated: January 7, 2026

Islatravir + Etonogestrel/Ethinyl Estradiol 3D Printed IVR

  • User: Female
  • Hormonal: Hormonal
  • Delivery type:
    • Vaginal Ring
  • Intended Duration:
    • Short-Acting
  • Development Stage: Pre-Clinical
  • Developer(s)/researcher(s): University of North Carolina
Details
  • API: Etonogestrel, Ethinyl Estradiol, Islatravir (EFdA)
  • Target: Estrogen Receptor, Progesterone Receptor
  • Mechanism of Action:
    • Endometrial Changes
    • Cervical Mucus Changes
    • Ovulation Inhibition
    • Anti-Microbial
  • Inactive Materials: Silicone-Urethane-Based Resin
  • Regimen: 1 Ring/90 Days
  • MPT: Potential MPT
  • Promising Attributes: The method offers both pregnancy prevention and HIV prevention. The novel 3D printing process could lead to more rapid, scalable, and cost-effective manufacturing & improved API release.
Product Status

Active Pre-Clinical Research

History

2020: A novel approach to intravaginal ring design and manufacturing is published by the Benhabbour Research Laboratory.
2024: Results of in vitro release studies comparing the release of ENG and EE from 3D printed IVRs published. This study included the generation of a 90-day CLIP IVR that will be utilized in future work to support the development of a long-acting ENG/EE IVR combined with an antiretroviral for the prevention of HIV and unplanned pregnancy.

Publications

Additional Information