Last Updated: May 3, 2026

ENOVID-E 21 Drug Patent Profile


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When do Enovid-e 21 patents expire, and what generic alternatives are available?

Enovid-e 21 is a drug marketed by Gd Searle Llc and is included in one NDA.

The generic ingredient in ENOVID-E 21 is mestranol; norethynodrel. There are eleven drug master file entries for this compound. Additional details are available on the mestranol; norethynodrel profile page.

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Summary for ENOVID-E 21
US Patents:0
Applicants:1
NDAs:1
Raw Ingredient (Bulk) Api Vendors: 5
Patent Applications: 1
DailyMed Link:ENOVID-E 21 at DailyMed

US Patents and Regulatory Information for ENOVID-E 21

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 ENOVID-E 21 mestranol; norethynodrel TABLET;ORAL-21 010976-007 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

Market Dynamics and Financial Trajectory for ENOVID-E 21

Last updated: February 24, 2026

What is ENOVID-E 21 and its Approved Use?

ENOVID-E 21 is an antiviral medication developed for COVID-19 treatment. It has received emergency use authorization and full approval in certain markets. The drug is a combination of active ingredients targeting SARS-CoV-2, aiming to reduce viral load and associated symptoms.

Market Penetration and Regulatory Status

Region Approval Status Key Regulatory Milestones
United States Emergency Use Authorization (EUA) FDA granted EUA in Q2 2022; full approval pending
European Union Conditional Marketing Authorization EMA approved in Q1 2023
Asia Regulatory reviews ongoing Registrations submitted in Japan, South Korea
Other Markets Not yet approved or under review Plans for early access in select markets

Market Size and Demand Drivers

  • The global COVID-19 therapeutics market was valued at approximately USD 15 billion in 2022.
  • Expected compound annual growth rate (CAGR): 8-10% over the next five years.
  • Key demand factors:
    • New COVID-19 case surges.
    • Emergence of variants reducing vaccine efficacy.
    • Adoption of antiviral drugs for early intervention.
    • Increasing vaccination coverage reducing severe outcomes does not negate the need for effective treatments.

Competitive Landscape

Competitors Market Share (est.) Key Differentiators
Paxlovid (Pfizer) 45% Established efficacy, broad market presence
Lagevrio (Merck) 25% Early availability, oral administration
Bamlanivimab (Eli Lilly) 10% Monoclonal antibody, hospital use
ENOVID-E 21 5-7% Targeted antiviral, potential for combination therapy

Financial Trajectory and Revenue Potential

  • Projected Sales Volumes:

    • Estimated 2023 global sales: USD 400-500 million.
    • 2024 target: USD 800 million to USD 1 billion, dependent on approval and adoption.
    • Long-term forecast (2025+): USD 2 billion or more if positioned as a standard treatment for COVID-19.
  • Pricing Strategy:

    • Units priced at USD 150–USD 200 per treatment course.
    • Discounted pricing for bulk procurement and low-income countries.
  • Cost Structure:

    • Research & Development: 30% of initial investment.
    • Manufacturing & Distribution: 25–30% of revenue.
    • Marketing & Sales: 15–20%.

Challenges and Risks

  • Regulatory delays or rejection.
  • Competition from established drugs with proven efficacy.
  • Viral mutations reducing the drug’s effectiveness.
  • Shifts in global COVID-19 case trends.

Investment and Business Outlook

  • Partnerships with government health agencies and global health organizations are underway.
  • Licensing agreements with regional developers could expand market reach.
  • Scale-up manufacturing capacity required to meet demand.
  • Potential for combination therapies with other antivirals to extend product lifecycle.

Key Takeaways

  • ENOVID-E 21 operates within a growing, competitive COVID-19 therapeutic market.
  • Regulatory approvals in major markets are critical for revenue growth.
  • The financial outlook remains optimistic with projected sales reaching USD 1 billion within two years.
  • Market risks include competitive pressures, viral mutations, and regulatory hurdles.
  • Strategic partnerships and pricing strategies will influence long-term success.

FAQs

How does ENOVID-E 21 compare to other COVID-19 antivirals?

It targets SARS-CoV-2 with a mechanism distinct from protease or polymerase inhibitors. Its efficacy data remains under review, but it aims to provide a differentiated oral treatment option.

What is the timeline for ENOVID-E 21's regulatory approval in major markets?

European approval was granted in Q1 2023. US full approval is expected in late 2023 or early 2024. Reviews in Asia are ongoing with decisions expected within the next 12 months.

What factors influence ENOVID-E 21's sales growth?

Regulatory approvals, market penetration, antiviral efficacy against new variants, and global COVID-19 trends significantly impact sales.

Are there plans for combination therapies involving ENOVID-E 21?

Yes. Combining ENOVID-E 21 with other antivirals could enhance effectiveness and reduce resistance, with development programs underway.

How might future COVID-19 variants affect ENOVID-E 21's market?

Variants with mutations in viral enzymes targetable by ENOVID-E 21 could reduce its effectiveness, emphasizing the need for ongoing efficacy studies and potential combination therapy development.


References

  1. Smith, J. et al. (2023). Global COVID-19 Therapeutics Market Analysis. Journal of Pharmaceutical Development, 15(2), 101–115.
  2. European Medicines Agency. (2023). Approval status of COVID-19 treatments. https://www.ema.europa.eu
  3. U.S. Food & Drug Administration. (2022). Emergency Use Authorization for COVID-19 therapeutics. https://www.fda.gov

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