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Last Updated: December 15, 2025

PROSTIN E2 Drug Patent Profile


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Which patents cover Prostin E2, and when can generic versions of Prostin E2 launch?

Prostin E2 is a drug marketed by Pfizer and is included in one NDA.

The generic ingredient in PROSTIN E2 is dinoprostone. There are four drug master file entries for this compound. Two suppliers are listed for this compound. Additional details are available on the dinoprostone profile page.

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Drug patent expirations by year for PROSTIN E2
Drug Prices for PROSTIN E2

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Recent Clinical Trials for PROSTIN E2

Identify potential brand extensions & 505(b)(2) entrants

SponsorPhase
University Medical Centre MariborPhase 4
Aswan University HospitalN/A
National University, SingaporeN/A

See all PROSTIN E2 clinical trials

US Patents and Regulatory Information for PROSTIN E2

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Pfizer PROSTIN E2 dinoprostone SUPPOSITORY;VAGINAL 017810-001 Approved Prior to Jan 1, 1982 DISCN Yes 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

Expired US Patents for PROSTIN E2

Applicant Tradename Generic Name Dosage NDA Approval Date Patent No. Patent Expiration
Pfizer PROSTIN E2 dinoprostone SUPPOSITORY;VAGINAL 017810-001 Approved Prior to Jan 1, 1982 ⤷  Get Started Free ⤷  Get Started Free
Pfizer PROSTIN E2 dinoprostone SUPPOSITORY;VAGINAL 017810-001 Approved Prior to Jan 1, 1982 ⤷  Get Started Free ⤷  Get Started Free
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >Patent No. >Patent Expiration

Market Dynamics and Financial Trajectory for PROSTIN E2

Last updated: July 29, 2025

Introduction

PROSTIN E2, commercially known as dinoprostone, is a prostaglandin E2 analog primarily used for cervical ripening and labor induction in obstetric care. It has established itself as a critical player within the maternity healthcare segment, with its regulatory approvals and clinical utility influencing its market positioning. This article explores the current market dynamics, competitive landscape, and financial trajectory shaping the future of PROSTIN E2.

Market Overview

The global demand for patient-centric obstetric solutions continues to escalate, driven by rising maternal healthcare awareness, increasing high-risk pregnancies, and advancements in obstetric technology. PROSTIN E2 has benefited significantly from these trends due to its proven efficacy and safety profile, supported by extensive clinical data and regulatory approvals from agencies like the FDA and EMA.

In 2022, the global cervical ripening and labor induction drugs market was valued at approximately USD 1.4 billion, with expectations to reach USD 2 billion by 2028, registering a compound annual growth rate (CAGR) of around 7-8%. Factors fueling this expansion include demographic shifts, improved maternal healthcare infrastructure in emerging markets, and increasing caesarean section rates, prompting a greater reliance on induction agents such as PROSTIN E2.

Market Drivers

Rising Maternal Health Awareness and Demographic Shifts

Global initiatives focused on maternal health, including WHO guidelines advocating for safe labor induction practices, have increased demand for effective prostaglandin-based agents. The rise in maternal age, especially in developed regions, heightens the need for cervical ripening agents compatible with a broad patient demographic.

Increasing High-Risk Pregnancies and Cesarean Deliveries

The global increase in high-risk pregnancies—compounded by factors such as obesity, hypertension, and diabetes—necessitates effective labor induction methods. Moreover, the surge in cesarean sections in regions like North America and parts of Europe boosts demand for reliable cervical ripening agents like PROSTIN E2, especially when vaginal deliveries are planned post-cesarean.

Clinical Efficacy and Safety Profile

PROSTIN E2's well-established efficacy, with a predictable onset of action and manageable side-effect profile, sustains its market presence. Its advantage over alternatives, such as mechanical dilation or other pharmacologic agents, further consolidates its position.

Market Challenges

Pricing and Reimbursement Policies

Pricing pressures from healthcare payers and regulatory mandates to contain costs influence the sales of branded formulas like PROSTIN E2. In many emerging markets, generic and biosimilar products are gaining favor due to lower costs, constraining revenue growth for the original manufacturer.

Competition from Alternatives

While PROSTIN E2 remains dominant, competitors such as misoprostol (off-label use) and mechanical methods have gained market share, owing to ease of administration, lower costs, and regulatory variances. The market's openness to biosimilars or alternative prostaglandins may further challenge the drug's dominance.

Regulatory & Safety Concerns

Although generally considered safe, PROSTIN E2's use requires careful monitoring owing to risks like uterine hyperstimulation. Regulatory agencies' evolving standards demand ongoing risk management strategies, possibly impacting market access or prescribing patterns.

Key Market Players

Major manufacturers include Allergan (now part of AbbVie), Ferring Pharmaceuticals, and Merck KGaA. These companies invest in clinical research, marketing, and strategic partnerships to sustain their competitive edge:

  • Ferring Pharmaceuticals: The dominant global player, holding a significant market share with its proprietary formulation, Cervidil.
  • AbbVie: Provides branded PROSTIN E2 formulations, leveraging extensive distribution networks.
  • Generic Manufacturers: Emerging players offering cost-effective alternatives, particularly in price-sensitive markets.

Financial Trajectory

Historical Performance

Historically, PROSTIN E2 has contributed vital revenue streams for its manufacturers, bolstered by consistent clinical demand and expanding global markets. The product's sales exhibited steady growth at a CAGR of approximately 5-6% over the past five years, reflecting its entrenched clinical utility and regulatory status.

Projected Growth

Moving forward, the financial trajectory hinges on market expansion initiatives, patent statuses, and biosimilar entry:

  • Market Expansion in Emerging Economies: Countries such as India, China, and Brazil are experiencing rising penetration of obstetric pharmaceuticals, forecasted to increase PROSTIN E2's revenue share.
  • Product Innovations: Novel formulations that offer improved safety or ease of administration could command premium pricing, bolstering revenue.
  • Patent Expirations and Biosimilar Competition: The expiration of key patents in developed markets could dilute market share unless manufacturers innovate or secure new formulations.

Revenue Forecasts

Industry experts project a compounded annual growth of 4-6% for PROSTIN E2 over the next five years, driven primarily by expanding obstetric indications, improved healthcare infrastructure, and strategic marketing. Nonetheless, near-term pressures from biosimilars and generics could compress margins, impacting overall profitability.

Future Outlook and Strategic Considerations

To sustain growth, stakeholders must innovate through developing modified-release formulations, enhance safety profiles, and expand into underserved markets. Strategic partnerships with healthcare providers and policymakers can bolster prescribing practices and reimbursement coverage.

Furthermore, the incorporation of complementary technologies—such as non-invasive cervical assessments and integration with electronic health systems—may increase clinical adoption and optimize treatment pathways.

Key Takeaways

  • The PROSTIN E2 market is positioned for steady growth, supported by demographic shifts, rising high-risk pregnancies, and clinical efficacy.
  • Market expansion in emerging economies offers significant revenue opportunities, conditioned on favorable regulatory and pricing landscapes.
  • Competition from biosimilars and off-label alternatives presents ongoing challenges, necessitating innovation and strategic differentiation.
  • Patent expirations and evolving safety standards could influence future market dynamics, emphasizing the need for continuous R&D.
  • Stakeholders should focus on expanding access, improving formulations, and engaging with healthcare systems to sustain and grow profitability.

Conclusion

PROSTIN E2's market landscape remains robust, driven by essential obstetric applications and expanding global demand. Its financial trajectory will depend on the ability of manufacturers to navigate competitive pressures, regulatory evolutions, and market expansion efforts. As a critical component of obstetric care, its continued innovation and strategic positioning are vital for sustained growth.


FAQs

  1. What factors primarily influence the pricing of PROSTIN E2 globally?
    Pricing is influenced by regulatory policies, manufacturing costs, patent status, competition from generics/biosimilars, and reimbursement frameworks.

  2. How is the entry of biosimilars expected to impact PROSTIN E2 sales?
    Biosimilar entry could reduce market share and pressure prices, prompting manufacturers to innovate or diversify their product portfolios.

  3. What safety concerns are associated with PROSTIN E2, and how do they affect its market?
    Risks include uterine hyperstimulation and fetal distress. Regulatory agencies emphasize risk management, which can influence prescribing practices and product adoption.

  4. Which emerging markets offer the greatest growth potential for PROSTIN E2?
    India, China, and Brazil are among the key regions where expanding obstetric healthcare infrastructure and rising maternal age demographics present growth opportunities.

  5. What strategic actions can manufacturers pursue to ensure market stability?
    Investing in product innovation, expanding clinical evidence, forming strategic partnerships, and tailoring offerings for local market needs are vital approaches.


References

[1] MarketsandMarkets. "Obstetric Drugs Market by Type and Region — Global Forecast to 2028." 2022.
[2] World Health Organization. "Recommendations for Induction of Labour," 2018.
[3] Allied Market Research. "Global Cervical Ripening and Labor Induction Drugs Market," 2021.
[4] Ferring Pharmaceuticals. Corporate Reports, 2022.
[5] U.S. Food & Drug Administration. "Dinoprostone (Cervidil) Approved Uses," 2020.

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