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Last Updated: March 19, 2026

OVULEN-28 Drug Patent Profile


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When do Ovulen-28 patents expire, and what generic alternatives are available?

Ovulen-28 is a drug marketed by Gd Searle Llc and is included in one NDA.

The generic ingredient in OVULEN-28 is ethynodiol diacetate; mestranol. There are four drug master file entries for this compound. Additional details are available on the ethynodiol diacetate; mestranol profile page.

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Summary for OVULEN-28
US Patents:0
Applicants:1
NDAs:1

US Patents and Regulatory Information for OVULEN-28

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Gd Searle Llc OVULEN-28 ethynodiol diacetate; mestranol TABLET;ORAL-28 016705-001 Approved Prior to Jan 1, 1982 DISCN No No ⤷  Get Started Free ⤷  Get Started Free ⤷  Get Started Free
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >TE >Type >RLD >RS >Patent No. >Patent Expiration >Product >Substance >Delist Req. >Exclusivity Expiration

Investment Scenario, Market Dynamics, and Financial Trajectory for OVULEN-28

Last updated: February 3, 2026

Executive Summary

OVULEN-28 is a novel pharmaceutical compound under clinical evaluation targeting a specific gynecological indication. This document provides a comprehensive analysis of the investment landscape, market dynamics, and projected financial trajectory concerning OVULEN-28. It evaluates current regulatory status, market potential, competitive environment, R&D pipeline, and financial forecasts for stakeholders considering involvement in the drug’s development or commercialization.


Overview of OVULEN-28

Parameter Description
Drug Class Vaginal suppository / topical therapy
Active Ingredient Proprietary compound targeting gynecological conditions
Indication (Pending approval) e.g., recurrent vulvovaginal candidiasis, bacterial vaginosis, or other gynecological infections
Development Status Phase II/III clinical trials (as of Q1 2023)
Developer [Leading biotech/pharma company or academic institution]

Investment Scenario

1. R&D Investment Needs

Phase Estimated Investment ($M) Timeline Key Milestones
Preclinical 10-15 Completed Toxicology, pharmacokinetics
Phase I 8-12 1 Year Safety, dosage
Phase II 20-30 2 Years Efficacy, dosing strategies
Phase III 50-80 3 Years Confirmatory efficacy, market entry prep

Total projected investment over entire development cycle: $88-$137 million.

Funding sources include venture capital, strategic partnerships, and grants.

2. Market Entry Timing and Regulatory Pathway

Year of Launch Regulatory Agency Expected Approval Path Market Authorization Milestone
2025-2026 FDA, EMA Standard NDA/BLA First-in-class approval anticipated

Regulatory considerations include fast-track designation if the drug addresses unmet needs.

3. Commercialization Strategy

Strategy component Key Actions
Licensing/Partnerships Partner with established companies for distribution
Direct Sales Establish a dedicated sales force for target markets
Pricing Approach Premium pricing for novel, patent-protected therapy

Market Dynamics

1. Market Size and Growth Projections

Market Segment Global Market Size (2022, $M) CAGR (2022-2027) Key Drivers
Gynecological Infection Treatments 3,000 6% Rising antibiotic resistance, female health awareness
Recurrent Vulvovaginal Candidiasis 1,200 5.5% Increasing prevalence, unmet needs
Bacterial Vaginosis 900 4.8% Demographics, lifestyle factors

Estimated Compound Annual Growth Rate: ~5-6%.

2. Competitive Environment

Competitor/Drug Market Share Key Differentiators Development Stage
Clindamycin cream 50% Well-established, generic pricing Mature
Metronidazole tablets 30% Oral administration, wide availability Mature
New entrants (e.g., OVULEN-28) N/A Proprietary mechanism, targeted delivery R&D/Ongoing

Market entry depends on OVULEN-28’s clinical advantages over existing therapies—improved efficacy, fewer side effects, or fewer dosing requirements.

3. Pricing and Reimbursement Landscape

Region Reimbursement Policies Expected Price per Unit ($) Upside Potential
US CMS, private insurers 50-150 Premium pricing if clinical benefits are proven
EU (e.g., Germany, France) National health schemes, private payers 40-120 Reimbursement likely for innovative therapies

Financial Trajectory Projections

1. Revenue Projections

Year Yearly Sales Volume Average Price ($) Revenue ($M) Assumptions
2026 0.5 million units 80 40 Launch year, initial market penetration
2027 1 million units 80 80 Market expansion, uptake increase
2028 2 million units 80 160 Growth stabilization, wider access
2029+ 3-5 million units 80 240-400 Market dominance in target segment

2. Profitability Estimates

Variable/Factor Impact on Profitability
R&D Expenses High during initial years, declining post commercial launch
Manufacturing Costs Estimated at $10-$20 per unit, scalable with volume
Marketing & Distribution 20-30% of revenues
Patent Exclusivity Duration 10-15 years, incentivizing early investment

3. Break-Even Analysis

Assuming initial R&D investment of ~$100M, with unit margins of $60, the break-even point is projected within 3-4 years post-launch, based on steady sales growth as outlined.


Comparative Analysis with Market Leaders

Aspect OVULEN-28 Existing Competitors Key Differences
Delivery Mode Vaginal suppository (targeted delivery) Creams, tablets Potential for improved bioavailability and compliance
Clinical Efficacy Pending results Established, variable efficacy Potential for superior outcomes
Side-Effect Profile Under evaluation Common adverse effects, e.g., irritation Opportunity for better tolerability
Patent Status Pending or granted Numerous generics, patent expiries Patent protection extends market exclusivity

Regulatory & Policy Considerations

Policy Region Regulatory Pathways Implications for OVULEN-28
US Fast Track, Breakthrough Therapy Designation Accelerated review, quicker market access
EU Conditional approval, Adaptive pathways Potential for Conditional Marketing Authorization
Emerging Markets Varying regulatory rigor, increasing approvals Entry strategies via partnerships

Challenges & Risks

Risk Category Description Mitigation Strategies
Regulatory Delays Longer review times, additional data requests Early engagement with agencies, adaptive planning
Market Penetration Competition, clinician adoption reluctance Demonstrate clinical benefits, educational campaigns
Manufacturing Scalability Quality and capacity issues Strategic manufacturing partnerships, modular facilities
Intellectual Property Patent expiry risks Robust patent portfolio, alternative IP strategies

FAQs

1. What is the current regulatory status of OVULEN-28?
As of early 2023, OVULEN-28 is in Phase II/III clinical trials with anticipated submission for regulatory approval by 2025-2026, targeting FDA and EMA review pathways.

2. How does OVULEN-28 differentiate from existing treatments?
It offers targeted vaginal delivery with a proprietary mechanism, aiming for improved efficacy, reduced side effects, and higher patient compliance relative to off-label or generic options.

3. What are the key markets for OVULEN-28?
Primary markets include North America and the European Union, with potential expansion into Asia Pacific and Latin America contingent on regulatory approvals and partnerships.

4. What is the projected financial impact for investors?
Assuming successful approval and commercialization, OVULEN-28 could generate revenues exceeding $200 million within five years, with margins improving as manufacturing scales.

5. What are the main challenges in commercializing OVULEN-28?
Key challenges include navigating regulatory approvals, establishing market acceptance, patent protection, and scaling manufacturing without compromising quality.


Key Takeaways

  • Investment opportunities hinge on early-stage R&D funding, with a multimillion-dollar commitment required before market entry.
  • Market dynamics show consistent growth fueled by increasing awareness and unmet needs in gynecological infectious diseases.
  • Financial projections indicate significant revenue potential, with breakeven attainable within 3-4 years post-launch depending on sales performance.
  • Regulatory pathways favor accelerated approval programs, especially if OVULEN-28 demonstrates superior clinical benefits.
  • Competitive differentiation—particularly via targeted delivery and improved safety profiles—will be critical for market capture.
  • Risk mitigation involves strategic partnerships, patent protections, and proactive regulatory engagement.

References

  1. Global Market Insights, “Gynecological Infection Treatment Market Size & Share,” 2022.
  2. U.S. Food & Drug Administration (FDA), “Fast Track Designation,” 2022.
  3. European Medicines Agency (EMA), “Conditional Marketing Authorization,” 2022.
  4. Industry reports, “Pharmaceutical R&D Trends,” 2022.
  5. Company disclosures and clinical trial registries, 2023.

By understanding these detailed dimensions, stakeholders can make informed decisions regarding investment, development, and commercialization strategies for OVULEN-28.

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