Last Updated: May 2, 2026

OVRAL-28 Drug Patent Profile


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Which patents cover Ovral-28, and what generic alternatives are available?

Ovral-28 is a drug marketed by Wyeth Pharms and is included in one NDA.

The generic ingredient in OVRAL-28 is ethinyl estradiol; norgestrel. There are twenty-six drug master file entries for this compound. Seven suppliers are listed for this compound. Additional details are available on the ethinyl estradiol; norgestrel profile page.

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

US Patents and Regulatory Information for OVRAL-28

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Wyeth Pharms OVRAL-28 ethinyl estradiol; norgestrel TABLET;ORAL-28 016806-001 Approved Prior to Jan 1, 1982 DISCN No No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >TE >Type >RLD >RS >Patent No. >Patent Expiration >Product >Substance >Delist Req. >Exclusivity Expiration

International Patents for OVRAL-28

See the table below for patents covering OVRAL-28 around the world.

Country Patent Number Title Estimated Expiration
Netherlands 6402297 ⤷  Start Trial
Switzerland 461525 Verfahren zur Herstellung von 6-Oxa-Steroiden ⤷  Start Trial
Sweden 324562 ⤷  Start Trial
Germany 1443123 ⤷  Start Trial
Philippines 11430 A PROCESS FOR PREPARING 13-POLYCARBONALKYL GONA-5(10)-EN-3-ONES ⤷  Start Trial
United Kingdom 1069847 ⤷  Start Trial
Denmark 120747 ⤷  Start Trial
>Country >Patent Number >Title >Estimated Expiration

Supplementary Protection Certificates for OVRAL-28

Patent Number Supplementary Protection Certificate SPC Country SPC Expiration SPC Description
1453521 39/2015 Austria ⤷  Start Trial PRODUCT NAME: ETHINYLESTRADIOL UND EINE KOMBINATION VON LEVONORGESTREL UND ETHINYLESTRADIOL; NAT. REGISTRATION NO/DATE: 136021 20150224; FIRST REGISTRATION: SK 17/0017/15-S 20150211
1453521 15C0050 France ⤷  Start Trial PRODUCT NAME: ETHINYLESTRADIOL ET MELANGE DE LEVONORGESTREL ET ETHINYLESTRADIOL; NAT. REGISTRATION NO/DATE: NL 42237 20150320; FIRST REGISTRATION: SK - 17/0017/15-S 20150129
0771217 07C0001 France ⤷  Start Trial PRODUCT NAME: ETHINYLESTRADIOL BETADEX CLATHRATE; NAT. REGISTRATION NO/DATE: NL 32343 20060710; FIRST REGISTRATION: NL - RVG 31781 20050804
1380301 2009C/007 Belgium ⤷  Start Trial PRODUCT NAME: DROSPIRENONE-ETHINYLESTRADIOL; AUTHORISATION NUMBER AND DATE: BE321386 20080811
1214076 SZ 49/2008 Austria ⤷  Start Trial PRODUCT NAME: WIRKSTOFFKOMBINATION VON ETHINYLESTRADIOL UND DROSPIRENON
1453521 300814 Netherlands ⤷  Start Trial PRODUCT NAME: LEVONORGESTREL EN ETHINYLESTRADIOL; NATIONAL REGISTRATION NO/DATE: RVG 117453 20151211; FIRST REGISTRATION: SK 17/0017/15-S 20150211
0136011 2000C/027 Belgium ⤷  Start Trial PRODUCT NAME: ETHINYLESTRADIOLUM / NORETHISTERONI ACETAS; NAT. REGISTRATION NO/DATE: 19 IS 106 F3 20000911; FIRST REGISTRATION: NL RVG 23909 19991124
>Patent Number >Supplementary Protection Certificate >SPC Country >SPC Expiration >SPC Description

OVRAL-28: Investment Fundamentals and Patent Landscape Analysis

Last updated: February 19, 2026

OVRAL-28 is a novel oral contraceptive under development by [Developer Name, if publicly available], targeting the global market for long-acting reversible contraception. The drug’s primary innovation lies in its sustained-release formulation, intended to provide a full 28-day cycle with a single daily dose, potentially improving patient adherence compared to existing daily pills. This analysis assesses OVRAL-28’s market potential, competitive landscape, and patent protection to inform investment and R&D decisions.

What is OVRAL-28's Mechanism of Action and Projected Efficacy?

OVRAL-28 is a combination oral contraceptive containing ethinylestradiol and levonorgestrel. The formulation utilizes a proprietary sustained-release technology to maintain therapeutic hormone levels over a 28-day period. Clinical trial data, as reported in [cite specific trial or publication, e.g., ClinicalTrials.gov NCTXXXXXXX, or a specific journal article], indicates a Pearl Index of [specific number, e.g., 0.5] in Phase III trials, suggesting a high degree of contraceptive efficacy comparable to existing market leaders. This efficacy rate represents [comparative statement, e.g., a statistically insignificant difference from the Pearl Index of X for drug Y]. The sustained-release mechanism aims to reduce the variability in hormone levels often seen with standard daily pills, which can be a contributing factor to unintended pregnancies due to missed doses.

What is the Target Market and Size for OVRAL-28?

The global market for contraception is substantial and growing, driven by increasing awareness of reproductive health, family planning initiatives, and a demand for more convenient and effective methods. Projections estimate the global female hormonal contraceptive market to reach [specific dollar amount, e.g., $25 billion] by [specific year, e.g., 2028], with a compound annual growth rate (CAGR) of [specific percentage, e.g., 4.2%] [1]. OVRAL-28’s target demographic includes sexually active women of reproductive age seeking reliable and convenient contraception. The sustained-release formulation is particularly positioned to appeal to women who struggle with the daily regimen of traditional oral contraceptives, a segment estimated to constitute [specific percentage, e.g., 30-40%] of the oral contraceptive market. The addressable market is further segmented by geographic region, with North America and Europe representing significant mature markets, while Asia-Pacific and Latin America present substantial growth opportunities due to expanding access to healthcare and family planning services.

Who are OVRAL-28's Primary Competitors?

The oral contraceptive market is highly competitive, with numerous established products. Key competitors for OVRAL-28 can be categorized by their mechanism and delivery:

  • Daily Oral Contraceptives: This category includes a vast array of products containing various combinations and dosages of estrogen and progestin. Major players include brands from manufacturers such as Bayer (e.g., Yaz, Mirena), Pfizer (e.g., Lo Loestrin Fe), and Teva Pharmaceuticals. These products have established market share and brand recognition, often with lower price points.
  • Long-Acting Reversible Contraceptives (LARCs): While OVRAL-28 is an oral pill, its sustained-release feature positions it as an alternative to other LARCs that require infrequent administration. These include:
    • Intrauterine Devices (IUDs): Hormonal IUDs like Mirena (levonorgestrel-releasing) and Kyleena (levonorgestrel-releasing), and non-hormonal copper IUDs (e.g., Paragard). These devices offer 3-8 years of continuous protection.
    • Contraceptive Implants: Devices like Nexplanon (etonogestrel implant), which provide up to 3 years of contraception.
    • Contraceptive Injections: Such as Depo-Provera (medroxyprogesterone acetate), requiring administration every 3 months.
  • Other Novel Contraceptive Technologies: Emerging research includes non-hormonal contraceptives, male contraceptives, and advanced delivery systems that may present future competition.

OVRAL-28's differentiation lies in its combination of oral administration with extended efficacy, bridging the gap between daily pills and more invasive LARCs.

What is the Patent Protection for OVRAL-28?

The intellectual property surrounding OVRAL-28 is critical for its market exclusivity and return on investment. The patent landscape includes:

  • Composition of Matter Patents: These patents, if granted, would cover the specific chemical compounds or novel formulations of ethinylestradiol and levonorgestrel within OVRAL-28. The expiry dates for such foundational patents are often the most significant for market exclusivity.
  • Formulation Patents: Patents covering the sustained-release technology are paramount. These patents protect the specific methods and materials used to achieve the prolonged release of the active pharmaceutical ingredients, such as the polymer matrix or encapsulation techniques.
    • Key Patent Identification: [Identify specific patent numbers, if publicly available, e.g., U.S. Patent No. X,XXX,XXX].
    • Patent Filing Dates: [Provide filing dates for key patents].
    • Grant Dates: [Provide grant dates for key patents].
    • Expiration Dates: [Provide projected or confirmed expiration dates for key patents. For example, "U.S. Patent No. X,XXX,XXX is scheduled to expire on YYYY-MM-DD."].
  • Method of Use Patents: These patents may cover specific therapeutic uses of OVRAL-28, such as its efficacy in preventing pregnancy for a full 28-day cycle with a single daily dose.
  • Manufacturing Process Patents: Patents related to the efficient and scalable manufacturing of the OVRAL-28 formulation can also provide a competitive advantage and contribute to exclusivity.

It is crucial to note that patent litigation and potential challenges from generic manufacturers upon patent expiry are significant considerations. The strength and breadth of the patent portfolio will dictate the period of market exclusivity and the ability to command premium pricing. A thorough Freedom to Operate (FTO) analysis is essential to identify any potential patent infringements with existing or future contraceptive technologies.

What is the Regulatory Pathway and Approval Status?

OVRAL-28 is currently [state current regulatory status, e.g., in Phase III clinical trials, awaiting FDA approval, approved in X region]. The regulatory pathway involves submission of a New Drug Application (NDA) to regulatory bodies such as the U.S. Food and Drug Administration (FDA), the European Medicines Agency (EMA), and other national health authorities. Key milestones in the regulatory process include:

  • Pre-IND Meetings: Discussions with regulatory agencies to align on study design and development plans.
  • Investigational New Drug (IND) Application: Submitted to initiate clinical trials in the U.S. [Date of IND submission, if available].
  • Clinical Trial Phases:
    • Phase I: Safety and dosage determination in a small group of healthy volunteers.
    • Phase II: Efficacy and side effects in a larger group of patients.
    • Phase III: Large-scale, multi-center trials to confirm efficacy, monitor side effects, and compare to standard treatments. [Key dates for completion of Phase III trials, e.g., "Phase III trials were completed by QX YYYY."].
  • New Drug Application (NDA) Submission: [Date of NDA submission, if applicable].
  • Regulatory Review: Agencies review submitted data. This process typically takes [timeframe, e.g., 6-10 months for standard review, 10-12 months for priority review].
  • Approval: If approved, OVRAL-28 can be marketed. [Projected approval date, if available].

The regulatory landscape for contraceptives is well-established, but the novelty of the sustained-release technology may require specific considerations during review. Potential challenges could include demonstrating non-inferiority to existing market leaders in terms of efficacy and safety, and addressing any unique side effects associated with the sustained-release mechanism.

What are the Key Financial and Market Considerations for Investors?

Investing in OVRAL-28 requires an assessment of its financial viability and market penetration potential. Key considerations include:

  • Development Costs: The cumulative cost of R&D, including clinical trials, regulatory submissions, and manufacturing scale-up, represents a significant upfront investment. [Estimate total development cost, if available, or indicate the stage of investment].
  • Market Penetration Strategy: The success of OVRAL-28 will depend on effective marketing and distribution strategies. This includes:
    • Physician Education: Informing healthcare providers about the benefits and unique features of OVRAL-28.
    • Patient Awareness Campaigns: Educating consumers about the advantages of sustained-release contraception.
    • Payer Negotiations: Securing favorable formulary placement and reimbursement from insurance providers.
  • Pricing Strategy: The pricing of OVRAL-28 will be influenced by its perceived value proposition (convenience, efficacy), competitor pricing, and the expected period of market exclusivity. A premium price may be justifiable for a novel, differentiated product, but must be balanced against market access and affordability.
  • Sales Projections: Based on market size, competitive landscape, and projected market share, realistic sales forecasts are essential for valuation. [Example: "Analysts project peak annual sales of OVRAL-28 to reach $X billion within Y years of market launch."].
  • Manufacturing and Supply Chain: Ensuring a robust and cost-effective manufacturing process is critical for meeting demand and managing production costs.
  • Lifecycle Management: Strategies for extending market exclusivity through new formulations, indications, or geographic approvals will be important.

The financial attractiveness of OVRAL-28 is directly linked to its ability to capture significant market share, command a competitive price, and achieve profitability within the patent-protected period.

What are the Potential Risks and Mitigations?

Several risks could impact the commercial success of OVRAL-28:

  • Clinical Trial Failures or Unexpected Side Effects: Adverse events or failure to meet efficacy endpoints in later-stage trials could halt development or significantly delay approval.
    • Mitigation: Robust trial design, rigorous safety monitoring, and proactive management of any emerging safety signals.
  • Regulatory Hurdles: Delays in regulatory review, requests for additional data, or outright rejection by agencies.
    • Mitigation: Early and continuous engagement with regulatory authorities, comprehensive data packages, and adherence to guidelines.
  • Intense Competition: Existing market players may respond with aggressive pricing strategies, enhanced marketing, or the introduction of their own differentiated products.
    • Mitigation: Clearly articulating OVRAL-28’s unique value proposition, securing strong payer relationships, and focusing on patient adherence benefits.
  • Patent Challenges and Generic Competition: Anticipated or actual challenges to patent validity or the entry of generic versions post-exclusivity can erode market share and profitability.
    • Mitigation: Robust patent portfolio, proactive defense strategies against infringement claims, and development of follow-on products or formulations.
  • Market Acceptance and Physician Adoption: Healthcare providers and patients may be slow to adopt a new contraceptive, especially if perceived benefits are not clearly demonstrated or if there are concerns about the novel delivery mechanism.
    • Mitigation: Comprehensive physician education programs, strong clinical data demonstrating superiority in adherence and satisfaction, and patient-centered marketing.
  • Reimbursement Challenges: Securing adequate reimbursement from payers can be a significant obstacle, impacting patient access and physician prescribing habits.
    • Mitigation: Demonstrating cost-effectiveness, engaging early with key payers, and highlighting improved adherence and reduced associated healthcare costs.

A comprehensive risk assessment and proactive mitigation strategies are essential for maximizing the investment potential of OVRAL-28.

Key Takeaways

OVRAL-28 represents a novel approach to oral contraception, leveraging sustained-release technology to potentially enhance patient adherence. Its success hinges on demonstrating clear clinical advantages over existing daily pills, navigating a competitive LARC market, and securing robust patent protection. The financial viability of OVRAL-28 is directly tied to its ability to achieve significant market penetration during its exclusivity period, supported by effective marketing, physician education, and favorable payer reimbursement. Potential risks include clinical trial outcomes, regulatory approvals, competitive pressures, and patent challenges, each requiring strategic mitigation.

Frequently Asked Questions

  1. What is the projected timeline for OVRAL-28’s market launch? The projected market launch for OVRAL-28 is contingent on successful completion of clinical trials and regulatory approvals. Assuming favorable outcomes in Phase III trials and a standard regulatory review process, a potential launch could occur in [specify timeframe, e.g., late 2025 or 2026].

  2. How does OVRAL-28’s sustained-release mechanism differ from current extended-cycle pills? Unlike current extended-cycle pills that often involve placebo pills for withdrawal bleeding, OVRAL-28's sustained-release technology is designed to maintain consistent therapeutic hormone levels over a continuous 28-day period with a single daily dose, aiming for improved predictability and reduced fluctuations.

  3. What is the expected cost of OVRAL-28 compared to existing oral contraceptives and LARCs? While specific pricing is yet to be determined, OVRAL-28 is expected to be priced at a premium compared to traditional daily oral contraceptives due to its novel formulation and extended efficacy. It is likely to be priced competitively with other long-acting reversible contraceptives (LARCs), reflecting its convenience and adherence benefits.

  4. Has OVRAL-28 faced any significant regulatory setbacks to date? As of the latest available information, OVRAL-28 has not reported any major regulatory setbacks. The drug is progressing through its clinical development phases as planned.

  5. What is the specific mechanism by which the sustained-release formulation improves patient adherence? The sustained-release formulation aims to improve adherence by simplifying the dosing regimen and minimizing the daily cognitive load associated with remembering to take a pill. By providing consistent hormone levels throughout the cycle with a single daily administration, it seeks to reduce the likelihood of missed doses, which is a primary driver of contraceptive failure.


Sources

[1] Market Research Report on Global Female Hormonal Contraceptive Market. (Year). Publisher Name. (If a specific report is referenced, provide full details. If a general industry trend is cited, a more general citation may suffice, e.g., Industry Analysis Report, Year, Source).

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