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Type of technology

Intra-vaginal ring

Administration route

Topical (Vaginal)

Development state and regulatory approval

Active Pharmaceutical Ingredient (API)

Soluble adenyl cyclase (sAC) inhibitors

Development Stage

Pre-clinical

Regulatory Approval

Not provided

Description

The dual-purpose vaginal ring is a silicone-based, doughnut-shaped vaginal ring designed for monthly contraception and prevention of diseases. It has an outer diameter of 55 mm and incorporates two drug delivery cassettes. One cassette contains a novel antiviral peptide, which is a protein fragment, while the other cassette delivers a hormone-free contraceptive agent—a soluble adenyl cyclase (sAC) inhibitor. Both active agents are released simultaneously at a controlled rate over a 28-day period.

Developer(s)

Oak Crest Institute
Originator
United States of America

Oak Crest Institute

The Oak Crest Institute of Science was founded in 2001 in Monrovia, California, by Dr. Marc Baum. It began as an independent, non-profit research organization with a mission to conduct impactful scientific research while training the next generation of scientists. Over the years, it has grown into a hub for interdisciplinary research, focusing on drug delivery and infectious diseases.

Technology highlight

1. Sustained Release: Enables controlled and simultaneous release of two distinct drugs within the vaginal flora, ensuring localized and prolonged therapeutic efficacy. 2. Self-Administration: Designed for ease of use, allowing users to independently insert and remove the device. 3. Cost-Effectiveness: Low manufacturing costs make it an accessible option for widespread use. 4. Extended Shelf Life: Exhibits a longer shelf life compared to other long-acting contraceptive formulations, enhancing storage stability and usability.

Illustration(s)

Technology main components

The Onering is a silicone-based, doughnut-shaped vaginal ring featuring two distinct lobes. Each lobe consists of a reservoir support structure enclosed by a rate-controlling membrane and sealed with a reservoir end cap. (i) Lobe One contains a novel antiviral peptide, which is a protein fragment. (ii) Lobe Two contains a soluble adenyl cyclase (sAC) inhibitor.

Information on the raw materials sourcing, availability and anticipated price

Not provided

Safety, Efficacy and Evidence Summary

Safety

The safety outcomes of the Early Phase 1 trial (MATRIX-003) have not yet been disclosed, as the study only commenced in the first quarter of 2024.

Efficacy

Not provided

Evidence Summary

Not provided

References and relevant studies

Not provided

APIs compatibility profile

API desired features
Small molecules

Soluble adenyl cyclase (sAC) inhibitors, including TDI-10229, LRE1, KH7, ADCY10, and TDI-11861, can be utilized in the dual-purpose design of the Onering/MATRIX-003. These inhibitors are selected for their slower dissociation rates and efficient local absorption within the vaginal environment. Currently, sAC inhibitors, whether as first- or second-line agents, have not yet received approval from any regulatory authority.

Proteins

Antiviral peptides, effective against human immunodeficiency virus (HIV), human papillomavirus (HPV), and herpes simplex virus (HSV), are targeted as a component of combination therapy in the Onering. These antivirals include (i) HIV: Enfuvirtide (T20), C34, TAT-derived peptides, VIRIP, Griffithsin; (ii) HPV: P18, L2-based peptides, HPV-16E7 peptides, RG1 epitope-derived peptides, Mimotopes; (iii) HSV: LL-37, TAT-CaM fusion peptides, BVD-21, G2 peptide, EP-100. Out of these peptides, Enfuvirtide (T20) is currently approved by USFDA (United States Food and Drug Adminstration).

Additional solubility data

Not provided

Additional stability data

Not provided

API loading: Maximum drug quantity to be loaded

50-75 wt%

API co-administration

2 different APIs : one API should be an antiviral peptide and other API should be a sAC inhibitor (an hormonal free contraceptive)

LogP

Not provided

Scale-up and manufacturing prospects

Scale-up prospects

Not provided

Tentative equipment list for manufacturing

Not provided

Manufacturing

Not provided

Specific analytical instrument required for characterization of formulation

Not provided

Excipients & delivery device(s)

Proprietary excipients used

No proprietary excipient used

Novel excipients or existing excipients at a concentration above Inactive Ingredient Database (IID) for the specified route of administration

No novel excipient or existing excipient used

Residual solvents used

No residual solvent used

Delivery device(s)

No delivery device

Additional features

Other features of the technology
  • Drug-eluting
  • Monolithic
  • Removable
  • Single-use
  • Molded
  • Reservoir-type
  • At least 1 year shelf life
Release properties

Not provided

Injectability

Not applicable

Stability

The shelf life of the formulation is longer than most of the long acting formulation i.e., 2 years.

Storage conditions and cold-chain related features

Store at a temperature range of 15°C to 30°C (59°F to 86°F).

Therapeutic area(s)

  • Other(s) : "HPV, HSV"
  • HIV
  • Contraception
Use case(s)
  • Pre-Exposure Prophylaxis (PrEP)
  • Treatment

Potential associated API(s)

  • Other antivirals
  • Soluble adenyl cyclase (sAC) inhibitors

Use of technology

Ease of administration
  • Self-administered
Frequency of administration

Monthly

User acceptance
Not provided

Targeted user groups

Age Cohort
  • Adults
  • Older Adults
Genders
  • Female
  • Cisgender female
  • Transgender female
Pregnant individuals

Unspecified

Lactating individuals

Unspecified

Healthy individuals

Unspecified

Comment

Not provided

Other antivirals

Class(es)

Antiviral Peptides

Development stage

Pre-clinical

Clinical trial(s)

Not provided

Foreseen/approved indication(s)

HIV, HSV and HPV

Foreseen user group

Not provided

Foreseen duration between application(s)

Once monthly

Applications to Stringent Regulatory Authorities (SRA) / regulatory approvals

Not provided

Soluble adenyl cyclase (sAC) inhibitors

Class(es)

Hormone Free Contraceptive

Development stage

Pre-clinical

Clinical trial(s)

Not provided

Foreseen/approved indication(s)

Contraception

Foreseen user group

Not provided

Foreseen duration between application(s)

Once monthly

Applications to Stringent Regulatory Authorities (SRA) / regulatory approvals

Not provided

There are either no relevant patents or these were not yet submitted to LAPaL